2878777

ILB IB AI4 AO2 1 2 E4 Inline Block IO Module for INTERBUS With 4 Analog Inputs and 2 Analog Outputs AO RT E3 AI4 RT E2 SF UL RC BATR US RD PW BU D3 AI3 RT E1 1/2 D4 D2 AI2 RT D1 AI1 R S2 S1 BU AUTOMATIONWORX Data Sheet 7280_en_02 1 © PHOENIX CONTACT - 02/2007 Description The ILB IB AI4 AO2 module is designed for use within an INTERBUS network. It is used to acquire analog input signals and output analog signals. Features of INTERBUS – – – – Remote bus branch; Inline connector 500 kbps transmission speed I/O areas can be parameterized individually for each channel Parameterization via process data or PCP Features of Inputs – – – – 4 differential analog signal inputs or 4 universal RTD inputs Connection of sensors in 2, 3 or 4-wire technology Sensor supply with channel-specific integrated short-circuit and overload protection Three current measuring ranges: 0 mA to 20 mA, ±20 mA, 4 mA to 20 mA – – – – – Four voltage measuring ranges: 0 V to 5 V, ±5 V, 0 V to 10 V, ±10 V Various RTD measuring ranges: E.g., linear R: 0 Ω to 9500 Ω, Pt 100, Pt 1000, Ni 1000 Measured value representation in four possible formats 16-bit measured value resolution (15 bits + sign bit) Adjustable filter times Features of Outputs – – – – – 2 universal analog signal outputs to connect either voltage or current signals Connection of actuators in 2-wire technology Three current ranges: 0 mA to 20 mA, ±20 mA, 4 mA to 20 mA Four voltage ranges: 0 V to 5 V, ±5 V, 0 V to 10 V, ±10 V Short-circuit-proof outputs Please refer to the "Assembly and Removal of Inline Block IO Modules" application note (see "Ordering Data" on page 4). Make sure you always use the latest documentation. It can be downloaded at www.download.phoenixcontact.com. A conversion table is available on the Internet at www.download.phoenixcontact.com/general/7000_en_00.pdf. ILB IB AI4 AO2 Table of Contents 1 2 3 4 5 6 7 Description.................................................................................................................................. 1 Ordering Data ............................................................................................................................. 4 Technical Data............................................................................................................................ 4 Internal Circuit Diagram.............................................................................................................12 Electrical Isolation......................................................................................................................13 Local Diagnostic and Status Indicators .....................................................................................13 Connection of INTERBUS, Supply, Analog Sensors, and Actuators.........................................14 7.1 7.2 7.3 7.4 7.5 8 9 Terminal Point Assignment of the INTERBUS Connectors.......................................................................... 15 Terminal Point Assignment of the Power Connector ................................................................................... 15 Terminal Point Assignment of the Connectors for the Analog Inputs........................................................... 15 Terminal Point Assignment of the Connectors for the Analog RTD Inputs .................................................. 16 Terminal Point Assignment of the Connectors for the Analog Outputs........................................................ 16 Connection Notes ......................................................................................................................17 Connection Examples................................................................................................................17 9.1 9.2 9.3 Connection Examples for Analog Inputs ...................................................................................................... 18 Connection Examples for RTD Inputs.......................................................................................................... 19 Connection Examples for Analog Outputs ................................................................................................... 19 10 Programming Data ....................................................................................................................20 11 Process Data .............................................................................................................................20 11.1 Assignment of the Process Data to the Terminal Points for the "Read and Write Analog Values" Command................................................................................................ 21 12 OUT Process Data Words .........................................................................................................22 13 IN Process Data Words .............................................................................................................23 13.1 13.2 Input Word IN1 (Status Word)...................................................................................................................... 23 Input Words IN2 to IN5................................................................................................................................. 23 14 Formats for the Representation of Measured Values (IN2 to IN5) ............................................24 14.1 14.2 14.3 14.4 Format: "IB IL" (Default Setting)................................................................................................................... 24 Format: "RT" ................................................................................................................................................ 26 Format: "S7-Compatible" ............................................................................................................................. 27 Format: "Standardized Representation"....................................................................................................... 29 15 Configuration .............................................................................................................................31 16 Configuration via Process Data .................................................................................................31 16.1 16.2 16.3 Output Word OUT1 (Control Word) for Command Code 40xxhex (Configure Device) ................................. 31 Output Words OUT2 to OUT5 (Configuration) ............................................................................................. 32 Example for the Module Configuration via Process Data............................................................................. 33 17 Configuration via PCP ...............................................................................................................34 18 PCP Communication .................................................................................................................35 18.1 18.2 Object Dictionary.......................................................................................................................................... 35 Object Description........................................................................................................................................ 36 19 Diagnostics ................................................................................................................................38 7280_en_02 PHOENIX CONTACT 2 ILB IB AI4 AO2 20 Channel Conversion Times and Process Data Update Time ....................................................39 21 Behavior of the Analog Outputs in the Event of INTERBUS Reset and Power Up ...................40 22 Notes on Systematic and Random Errors During Resistance and Temperature Measurement... 40 22.1 22.2 22.3 22.4 7280_en_02 Measures to Optimize Tolerances ............................................................................................................... 40 Connection Method ...................................................................................................................................... 41 RTD 3-Wire Connection ............................................................................................................................... 41 Systematic Errors During Temperature Measurement With 2-Wire Technology ......................................... 42 PHOENIX CONTACT 3 ILB IB AI4 AO2 2 Ordering Data Module Description Type Order No. Pcs./Pck. ILB IB AI4 AO2 2878777 1 Accessories: Connectors as Replacement Item Description Type Order No. Pcs./Pck. Shield connector for the bus connection (with color print) IB IL SCN-6 SHIELD-CP 2863151 5 Connector for the supply (with color print) On request Inline Block IO module for INTERBUS with 4 analog inputs and 2 analog outputs Shield connector for the connection of analog sensors (without color print) IB IL SCN-6 SHIELD 2726353 5 Shield connector for the connection of analog actuators (without color print) IB IL SCN 6-SHIELD-TWIN 2740245 5 Connector (without color print) IB IL SCN-8 2726337 10 Accessories: Other Description Type Order No. Pcs./Pck. CLIPFIX 35-5 3022276 50 Documentation Description Type Order No. Pcs./Pck. "Assembly and Removal of Inline Block IO Modules" application note AH ILB INSTALLATION 9014931 1 "General Introduction to the INTERBUS System" user manual IBS SYS INTRO G4 UM E 2745211 1 Recommended end clamp; placed both to the right and left of the module to secure it on the DIN rail "Peripherals Communication Protocol (PCP)" user manual IBS SYS PCP G4 UM E 2745169 1 "Porting Using PCP Compact" user manual IBS PCP COMPACT UM E 9015349 1 3 Technical Data General Data Housing dimensions with connectors (width x height x depth) 156 mm x 59 mm x 141 mm Weight 505 g (with connectors) Operating mode INTERBUS Transmission speed 500 kbps Connection method for sensors 2, 3, and 4-wire technology (shielded) Connection method for actuators 2-wire technology (shielded) Housing Dimensions 120 59 141 156 7280B001 Figure 1 7280_en_02 Module housing dimensions (in mm) PHOENIX CONTACT 4 ILB IB AI4 AO2 Ambient Conditions Guidelines Developed according to VDE 0160/EN 50178/IEC 62103, UL 508 Ambient temperature (operation) -25°C to +60°C Ambient temperature (storage/transport) -25°C to +85°C Humidity (operation/storage/transport) 10% to 95%, according to DIN EN 61131-2 Air pressure (operation) 80 kPa to 108 kPa (up to 2000 m above sea level) Air pressure (storage/transport) 66 kPa to 108 kPa (up to 3500 m above sea level) Degree of protection according to DIN 40050, IEC 60529 IP20 Protection class according to DIN 57106-1 Class 3 according to VDE 0106/IEC 60536 Air and creepage distances According to DIN VDE 0110/IEC 60664, IEC 60664A, DIN VDE 0160/EN 50178/IEC 62103 Housing material Plastic, PVC-free, PBT, self-extinguishing (V0) Pollution degree according to EN 60664-1/IEC 60664-1, EN 61131-2/IEC 61131-2 2; condensation not permitted during operation Surge voltage class II Electrical Isolation/Isolation of the Voltage Areas Test Distance Test Voltage Incoming remote bus/logic area, outgoing remote bus 500 V AC, 50 Hz, 1 min. Incoming remote bus/analog I/O 500 V AC, 50 Hz, 1 min. Incoming remote bus/communications power UL (primary) 500 V AC, 50 Hz, 1 min. Incoming remote bus/initiator supply UIS 500 V AC, 50 Hz, 1 min. Incoming remote bus/functional earth ground 500 V AC, 50 Hz, 1 min. Logic area, outgoing remote bus/analog I/O 500 V AC, 50 Hz, 1 min. Logic area, outgoing remote bus/communications power UL (primary) 500 V AC, 50 Hz, 1 min. Logic area, outgoing remote bus/initiator supply UIS 500 V AC, 50 Hz, 1 min. Logic area, outgoing remote bus/functional earth ground 500 V AC, 50 Hz, 1 min. Analog I/O/communications power UL (primary) 500 V AC, 50 Hz, 1 min. Analog I/O/initiator supply UIS 500 V AC, 50 Hz, 1 min. Analog I/O/functional earth ground 500 V AC, 50 Hz, 1 min. Communications power UL (primary)/initiator supply UIS 500 V AC, 50 Hz, 1 min. Communications power UL (primary)/functional earth ground 500 V AC, 50 Hz, 1 min. Initiator supply UIS/functional earth ground 500 V AC, 50 Hz, 1 min. Outgoing remote bus/analog I/O 500 V AC, 50 Hz, 1 min. Outgoing remote bus/functional earth ground 500 V AC, 50 Hz, 1 min. Mechanical Requirements Vibration test sinusoidal vibrations according to EN 60068-2-6/IEC 60068-2-6 5g load, 2.5 hours in each space direction Shock test according to EN 60068-2-27/IEC 60068-2-27 30g load for 11 ms, half sinusoidal wave, 3 shocks in each space direction and orientation Broadband noise according to EN 60068-2-64/IEC 60068-2-64 0.78g load, 2.5 hours in each space direction 7280_en_02 PHOENIX CONTACT 5 ILB IB AI4 AO2 Conformance With EMC Directive 89/336/EEC Noise Immunity Test According to EN 61000-6-2 Electrostatic discharge (ESD) EN 61000-4-2 IEC 61000-4-2 Criterion B Electromagnetic fields EN 61000-4-3 IEC 61000-4-3 Criterion A Fast transients (burst) EN 61000-4-4/ IEC 61000-4-4 Criterion B 6 kV contact discharge 8 kV air discharge Field strength: 10 V/m Remote bus: 2 kV Power supply: 2 kV I/O cables: 2 kV Criterion A All interfaces: 1 kV Surge voltage EN 61000-4-5 IEC 61000-4-5 Criterion B DC supply lines: ±0.5 kV/±0.5 kV (symmetrical/asymmetrical) Signal lines: ±0.5 kV/±0.5 kV (symmetrical/asymmetrical) Conducted interference EN 61000-4-6 IEC 61000-4-6 Criterion A Test voltage 10 V Noise Emission Test According to EN 61000-6-4 Noise emission of housing EN 55011 Class A Interface: INTERBUS Incoming remote bus Copper cable (RS-422), connected with Inline shield connector; supply electrically isolated; shielding connected with a capacitor to functional earth ground Outgoing remote bus Copper cable (RS-422), connected with Inline shield connector; supply electrically isolated; shielding connected directly to functional earth ground Recommended cable lengths See INTERBUS system data in the IBS SYS INTRO G4 UM E user manual 24 V Module Supply (Communications Power and Sensor Supply; UL and US) Nominal value 24 V DC Tolerance -15%/+20% according to EN 61131-2 Ripple ±5% according to EN 61131-2 Permissible range 19.2 V DC to 30.0 V DC Current consumption at UL See "Current Consumption at UL and US" Current consumption at US See "Current Consumption at UL and US" Power dissipation at UL See "Power Consumption at UL and US" on page 7 Power dissipation at US See "Power Consumption at UL and US" on page 7 Safety equipment for UL Transient surge protection via arresters, serial protection against polarity reversal Safety equipment for US Transient surge protection via arresters, serial protection against polarity reversal, channel-specific short-circuit protection with single-channel diagnostics Connection Via power connectors Diagnostics Single-channel diagnostics in the process data Failure indication via group error LED at PWR slot Single-channel failure indication via LED at slot for the sensors Electronically Protected Initiator Supply UIS (via Supply of US) Nominal value UIS 24 V DC Nominal current IIS per channel 50 mA Protection Internal, channel-specific electronic fuse, short-circuit-proof with single-channel diagnostics 7280_en_02 PHOENIX CONTACT 6 ILB IB AI4 AO2 Current Consumption at UL and US Typical Maximum Current consumption at UL No-load operation of outputs and AI mode 100 mA 130 mA RTD nominal load 100 mA 130 mA AO U nominal load (UOUT1 and UOUT2 = 10 V with RL = 2 kΩ) 110 mA 140 mA AO I nominal load (IOUT1 and IOUT2 = 20 mA with RL = 0 Ω) 135 mA 175 mA Current consumption at US IiS = 0 mA (no load) 12 mA 20 mA IiS = 4 x 20 mA (nominal load) 92 mA 100 mA IiS = 4 x 50 mA (maximum full load) 212 mA 220 mA No-load operation of outputs and AI mode; IiS = 0 mA (no load) 112 mA 150 mA AO U nominal load and AI nominal load; IiS = 4 x 20 mA 202 mA 240 mA AO I nominal load and AI nominal load; IiS = 4 x 20 mA 227 mA 275 mA AO I nominal load and AI full load; IiS = 4 x 50 mA 347 mA 395 mA Total current consumption at UL and US Power Consumption at UL and US (Current Consumption at Voltages UL and US; Specifications for Nominal Operation (UL = 24 V; US = 24 V Without Load), Full Load Same as Nominal Operation But With US Under Load) Typical Supply of Control AO Load Marginal Typical Supply Typical Power Cabinet Power Supply Unit Conditions Current Dissipation P24V_Supply Typical power supply P24V_Supply in U nominal operation U mode of the analog outputs (UOUT1,2 = 10 V with RL = 10 K) IS = 0 mA 125 mA 3.00 W Typical power supply P24V_Supply in I nominal operation I mode of the analog outputs (IOUT1,2 = 20 mA, with Rb = 0 Ω) IS = 0 mA 150 mA 3.60 W Typical power supply P24V_Supply in nominal operation U mode of the analog outputs (UOUT1,2 = 10 V with RL = 10 K) IS = 4 x 20 mA 200 mA 4.80 W Typical power supply P24V_Supply at full load I mode of the analog outputs (IOUT1,2 = 20 mA, with Rb = 0 Ω) IS = 4 x 20 mA 230 mA 5.45 W Typical power supply P24V_Supply in nominal operation U mode of the analog outputs (UOUT1,2 = +10 V with RL = 10 K) IS = 4 x 50 mA 325 mA 7.75 W Typical power supply P24V_Supply at full load I mode of the analog outputs (IOUT1,2 = 20 mA, with Rb = 0 Ω) IS = 4 x 50 mA 350 mA 8.35 W Analog Inputs Number 4 differential analog inputs Measured value resolution 16 bits (15 bits + sign bit) Measured value representation In the following formats: IB IL RT S7-compatible Standardized representation (15 bits with sign bit) (15 bits with sign bit) (15 bits with sign bit) (15 bits with sign bit) For measured value representation, please refer to the notes on page 24 and onwards. Filtering RFI filtering; passive TP 1st order Filter time of the A/D converter 4.5 ms (default) or 1.1 ms; adjustable for each channel Conversion time of the A/D converter 180 µs Channel conversion times and process data update time See "Channel Conversion Times and Process Data Update Time" on page 39 Limit frequency (-3 dB) of the input filters 120 Hz (for 4.5 ms filter default) or 450 Hz (for 1.1 ms filter) Transient protection Yes, via arresters Signal connection method 2, 3, and 4-wire connection; shielded, twisted pair cable Overload protection Yes, ±30 V DC, minimum 7280_en_02 PHOENIX CONTACT 7 ILB IB AI4 AO2 Differential Analog Voltage Inputs Number 4 Input range 0 V to 10 V; ±10 V; 0 V to 5 V; ±5 V Input resistance 276 kΩ, typical Open circuit response Goes to 0 V Maximum permissible voltage between analog voltage inputs and functional earth ground ±50 V DC Differential Analog Current Inputs Number 4 Input range 0 mA to 20 mA; ±20 mA; 4 mA to 20 mA Input resistance 107 Ω, typical Open circuit response Goes to 0 mA Maximum permissible current per current input Electronic overload protection Overload protection at the analog current inputs Yes, ±30 V DC, minimum Analog RTD Inputs Number 4 Input range Pt 100, Pt 500, Pt 1000, Ni 100, Ni 1000, Ni 1000 L&S, 0 Ω to 3200 Ω, 0 Ω to 9500 Ω Sensor supply current 231 mA, typical Analog Outputs Number 2 Voltage output range 0 V to 10 V; ±10 V; 0 V to 5 V; ±5 V Current output range 0 mA to 20 mA; ±20 mA; 4 mA to 20 mA Measured value resolution 16 bits (15 bits + sign bit) Measured value representation In the following formats: IB IL RT S7-compatible Standardized representation (15 bits with sign bit) (15 bits with sign bit) (15 bits with sign bit) (15 bits with sign bit) For measured value representation, please refer to the notes on page 24 and onwards. Conversion time of the D/A converters 70 µs, typical Resolution of the D/A converters 16 bits Process data update time See "Channel Conversion Times and Process Data Update Time" on page 39 Output load Voltage output RLmin = 2 kΩ Current output RLB = 0 Ω to 500 Ω Transient protection Yes, internally via arresters Signal connection method 2-wire termination; shielded, twisted pair cable Short-circuit protection Voltage output Current output Yes, permanent electronic short-circuit protection Yes, permanent electronic short-circuit protection Enabling function Yes, internal electronic Optical indicators 5% output LED, channel-specific 7280_en_02 PHOENIX CONTACT 8 ILB IB AI4 AO2 Permissible Cable Lengths Permissible cable lengths 250 m Reference conditions The specifications refer to nominal operation observing the installation instructions. The specifications refer to the following reference cable type: Shielded power station cable: LiYCY; 2 x 2 x 0.5 mm2; VDE0812 The ambient conditions and the local conditions in the system can result in special requirements for the installation of cables. These must be observed accordingly. For the integration of shielded I/O cables in an equipotential bonding concept for the automation system, the following applies in principle: Shielded analog I/O cables may only be connected directly to functional earth ground potential at a single point. This results in the prevention of voltage equalization currents via the analog cable. Additional information is available on request. Other: In order to observe the tolerance of RTD inputs, make allowance for the effects of the connecting cable and connection method (2, 3, and 4-wire technology). Limit Values for Temperature Measurement Sensor Type Nominal Range Lower Limit Upper Limit Pt DIN -200°C +850°C Ni DIN -60°C +180°C Ni 1000 L&S -50°C +160°C In the event of underrange or overrange of the nominal range, the "Underrange" or "Overrange" error message is generated. Tolerances at TA = 25°C AI Measuring Range Absolute (Typical) Absolute (Maximum) Relative (Typical) Relative (Maximum) 0 V to 5 V, ±5 V ±5.0 mV ±20 mV 0.10% ±0.40% 0 V to 10 V, ±10 V ±6.0 mV ±25 mV 0.06% ±0.25% 0 mA to 20 mA, ±20 mA, 4 mA to 20 mA ±12 µA ±50 µA 0.06% ±0.25% Pt 100 (-200°C ... +850°C) ±0.3 K ±1.6 K 0.03% ±0.19% Pt 500 (-200°C ... +850°C) ±0.2 K ±1.4 K 0.02% ±0.17% Pt 1000 (-200°C ... +850°C) ±0.2 K ±1.3 K 0.02% ±0.15% Ni 100 (-60°C ... +180°C) ±0.2 K ±0.9 K 0.11% ±0.50% Ni 1000 (-60°C ... +180°C) ±0.1 K ±0.5 K 0.08% ±0.28% Ni 1000 L&S (-50°C ... +160°C) ±0.1 K ±0.3 K ±0.02% ±1.6% 0 Ω to 3200 Ω ±0.4 Ω ±2.75 Ω 0.01% ±0.18% 0 Ω to 9500 Ω ±2.0 Ω ±12.0 Ω 0.02% ±0.13% AO Output Range Absolute (Typical) Absolute (Maximum) Relative (Typical) Relative (Maximum) 0 V to 5 V, ±5 V ±10 mV ±30 mV 0.20% ±0.60% 0 V to 10 V, ±10 V ±10 mV ±30 mV 0.10% ±0.30% 0 mA to 20 mA, ±20 mA, 4 mA to 20 mA ±20 µA ±60 µA 0.10% ±0.30% The data contains the offset error, gain error, and linearity error. All percentage tolerance values refer to the relevant measuring range final value. Unless otherwise stated, nominal operation (nominal voltage US = UL = 24 V, preferred mounting position, default format "IB IL", default filter setting (4.5 ms), identical measuring range setting for channels, etc.) is used as the basis. For RTD inputs, the tolerances are specified in 4-wire connection method, the installation instructions should be implemented accordingly. Please also observe the values for temperature drift and the tolerances influenced by electromagnetic interference. The maximum tolerance values represent the worst-case measurement inaccuracy. They contain the theoretical maximum possible tolerances in the measuring ranges. Moreover, the theoretical maximum possible tolerances of the calibration and test equipment have been taken into consideration. 7280_en_02 PHOENIX CONTACT 9 ILB IB AI4 AO2 Tolerance and Temperature Response at TA = -25°C to +60°C AI Measuring Range Drift (Typical) Drift (Maximum) 0 V to 5 V, ±5 V ±15 ppm/K ±35 ppm/K 0 V to 10 V, ±10 V ±15 ppm/K ±35 ppm/K 0 mA to 20 mA, ±20 mA, 4 mA to 20 mA ±20 ppm/K ±50 ppm/K Pt 100 (-200°C ... +850°C) ±40 ppm/K ±100 ppm/K Pt 500 (-200°C ... +850°C) ±35 ppm/K ±90 ppm/K Pt 1000 (-200°C ... +850°C) ±30 ppm/K ±80 ppm/K Ni 100 (-60°C ... +180°C) ±60 ppm/K ±110 ppm/K Ni 1000 L&S (-50°C ... +180°C) ±20 ppm/K ±50 ppm/K Ni 1000 (-60°C ... +180°C) ±20 ppm/K ±50 ppm/K 0 Ω to 3200 Ω ±20 ppm/K ±60 ppm/K 0 Ω to 9500 Ω ±25 ppm/K ±50 ppm/K AO Output Range Drift (Typical) Drift (Maximum) 0 V to 5 V, ±5 V, 0 V to 10 V, ±10 V ±55 ppm/K ±95 ppm/K 0 mA to 20 mA, ±20 mA, 4 mA to 20 mA ±50 ppm/K ±90 ppm/K The values refer to the relevant measuring range final value. The values refer to nominal operation in the recommended mounting position (horizontal wall mounting). Formula for Calculating the Tolerance Influenced by Temperature Typical temperature drift Drifttyp = Δϑ x TCtyp * MFV Where: Maximum temperature drift Drifttyp Typical temperature drift Δϑ Temperature difference between the ambient temperature of the module TA and +25°C TCtyp Typical temperature coefficient in ppm/K MFV Measuring range final value (e.g., +850°C for Pt 100) Driftmax = Δϑ x TCmax * MFV Where: Example Driftmax Maximum temperature drift Δϑ Temperature difference between the ambient temperature of the module TA and +25°C TCmax Maximum temperature coefficient in ppm/K MFV Measuring range final value (e.g., +850°C for Pt 100) Sensor = Pt 100; ambient temperature TA = +40°C Δϑ = +15 K TCtyp = ±40 ppm/K (typical); TCmax = ±100 ppm/K Measuring range final value Pt 100 MFV = +850°C Drifttyp = Δϑ x TCtyp x MFV = 15 K x ±40 ppm/K x 850°C = ±0.51°C Driftmax = Δϑ x TCmax x MFV = 15 K x ±100 ppm/K x 850°C = ±1.28°C The maximum drift is a worst-case value (theoretical assumption). 7280_en_02 PHOENIX CONTACT 10 ILB IB AI4 AO2 Tolerances Influenced by Electromagnetic Interference Current Analog Input Voltage RTD Analog Output Current Voltage Electromagnetic fields EN 61000-4-3 IEC 61000-4-3 < ±1.5% < 0.2 % < ±2.0% < ±0.5% < ±0.5% Fast transients (burst) EN 61000-4-4/ IEC 61000-4-4 < ±1.5% < 0.2 % < ±2.0% < ±0.5% < ±0.5% Conducted interference EN 61000-4-6 IEC 61000-4-6 < ±1.5% < 0.2 % < ±2.0% < ±0.5% < ±0.5% Under the influence of high-frequency electromagnetic interference phenomena caused by radio transmission systems in close proximity, additional tolerances can occur. The values specified refer to nominal operation in the event of direct interference to components without additional shielding such as a steel cabinet, etc. This information is valid for device firmware ID HW/FW 04/100 or later. The tolerances specified above can be reduced through additional shielding for the I/O module (e.g., use of a shielded control box/control cabinet, etc.). Please refer to the recommended measures in the Inline system manual for your bus system. Signal Rise Times: Voltage Output 0 V to 10 V (Typical Values) 10% to 90% 0% to > 99% Ohmic load RL = 2 k Ω 160 µs 240 µs Ohmic/capacitive load RL = 2k Ω/CL = 10 nF 160 µs 240 µs Ohmic/capacitive load RL = 2k Ω/CL = 220 nF 170 µs 240 µs Ohmic/inductive load RL = 2k Ω/LL = 3.3 mH 170 µs 240 µs Signal Rise Times: Current Output 0 mA to 20 mA (Typical Values) 10% to 90% 0% to > 99% Ohmic load RL = 500 Ω 450 µs 730 µs Ohmic/capacitive load RL = 500 Ω/CL = 10 nF 460 µs 750 µs Ohmic/capacitive load RL = 500 Ω/CL = 220 nF 770 µs 1.3 ms Ohmic/inductive load RL = 500 Ω/LL = 3.3 mH 610 µs 1.1 ms Ohmic/capacitive load RL = 50 Ω/CL = 100 nF 11 ms 20.7 ms Signal Rise Times: Current Output 4 mA to 20 mA (Typical Values) 10% to 90% 0% to > 99% Ohmic load RL = 500 Ω 400 µs 810 µs Ohmic/capacitive load RL = 500 Ω/CL = 10 nF 470 µs 840 µs Ohmic/capacitive load RL = 500 Ω/CL = 220 nF 800 µs 1.4 ms Ohmic/inductive load RL = 500 Ω/LL = 3.3 mH 590 µs 990 µs Approvals For the latest approvals, please visit www.download.phoenixcontact.com. 7280_en_02 PHOENIX CONTACT 11 ILB IB AI4 AO2 4 Internal Circuit Diagram µC REF Supervisor AI/RTD1...4 U/I U/I 4x OPC/SRE Supervisor U 3.3 V 15 V 5V 5V 24 V 24 V 24 V 5V I 24 V US ELF 24 V UL GNDUS GNDUL Shield IN INTERBUS OUT AGND FE PWR AI RTD AO1/2 7280A020 Figure 2 Internal wiring of the terminal points Key: U/I R E F µ C Universal output driver with integrated output shutdown Reference voltage Microprocessor Amplifier OPC / SRE Protocol chip with register expansion Constant current source Optocoupler Power supply unit with electrical isolation S u p e r v is o r Hardware monitoring E L F Electronic fuse Digital/analog converter 7280_en_02 PHOENIX CONTACT 12 ILB IB AI4 AO2 5 Electrical Isolation Incoming remote bus (5 V DC) Communications power (primary) 24 V DC UL Electrical isolation between area A and B A Logic area and outgoing remote bus (3.6 V DC/5 V DC) Microprocessor, protocol chip UL (24 V DC) B Analog inputs Analog I/O (5 V DC/±15 V DC) Analog outputs Supply of initiator supply UIS1 UIS2 UIS3 UIS4 Initiator supply UIS Analog inputs (24 V DC) US (24 V DC) 24 V DC US 7280A004 FE potential Figure 3 6 Electrical isolation of the individual function areas Local Diagnostic and Status Indicators Designation Color Meaning UL Green Communications power RC Green Remote bus cable check BA Green Bus active RD Yellow Outgoing remote bus disabled TR Green PCP communication active US Green SF Red Group error E1 to E4 Red Channel-specific error indication (sensor supply short circuit or open circuit) Yellow Analog output value is ≥ 5% of the positive measuring range final value BUS E1 UL BA RC RD US BUS1 BUS2 PWR TR E2 E3 E4 1 SF 2 AI1 RTD1 AI2 RTD2 AI3 RTD3 AI4 RTD4 AO1/2 PWR Sensor supply AI AO 7280B002 Figure 4 7280_en_02 1, 2 Diagnostic and status indicators PHOENIX CONTACT 13 ILB IB AI4 AO2 6 7 8 9 AO1/2 5 RTD4 RTD3 4 AI4 AI3 3 RTD2 2 AI2 1 RTD1 Connection of INTERBUS, Supply, Analog Sensors, and Actuators AI1 7 10 11 12 GND US US UIS UIS I1+ - 24VGND I2+ - 24VGND I3+ - 24VGND I4+ UL UL U1+U1- I11 1.1 2 1 1 2.1 1.2 2 2 1.3 3 1.4 4 BUS - U2+ U2- I2- 7280_en_02 U3+ U3- I3- - U4+ U4- I4- - I1 I2 GNDGND I1+ I1- U1- U1+ I2+ I2- U2- U2+ I3+ I3- U3- U3+ I4+ I4- U4- U4+ AGND UL US 1 2 1.1 1 1 2.1 2.2 1.2 2 2 2.2 3 2.3 1.3 3 3 2.3 4 2.4 1.4 4 4 2.4 FE 1 IN OUT INTERBUS 2 1.1 1 1 2.1 1.2 2 2 2.2 1.3 3 3 2.3 1.4 4 4 2.4 PWR Figure 5 - U1 U2 AI, RTD, AO 7280B003 Terminal point assignment of the connectors PHOENIX CONTACT 14 ILB IB AI4 AO2 7.1 Terminal Point Assignment of the INTERBUS Connectors Terminal Point Assignment Remark/Wire Color in the INTERBUS Standard Cable Connector 1 (BUS 1) Incoming Remote Bus Receive 1.1 DO1 2.1 DO1 Receive Transmit 1.2 DI1 2.2 DI1 Transmit 1.3 F-GND Reference potential 2.3 1.4, 2.4 Shield Shield potential is connected with a capacitor to functional earth ground (FE) of the potential jumper. Connector 2 (BUS 2) Outgoing Remote Bus Transmit 1.1 DO2 2.1 DO2 Transmit Receive 1.2 DI2 2.2 DI2 Receive 1.3 R-GND Reference potential 2.3 1.4, 2.4 Shield Shield potential is connected directly to functional earth ground (FE) of the potential jumper. 7.2 Green Yellow Pink Gray Brown Not used Green Yellow Pink Gray Brown Not used Terminal Point Assignment of the Power Connector Terminal Point Assignment Connector 3 (PWR) 1.1, 2.1 24 V supply US 1.2, 2.2 24 V communications power UL 1.3, GND UL 2.3 GND US 1.2, 2.4 FE 7.3 Terminal Point Assignment of the Connectors for the Analog Inputs (AI; connectors 4, 6, 8, and 10 in Figure 5 on page 14) Terminal Point Connector 4 Connector 6 (AI1) (AI2) 1.1 1.1 2.1 2.1 1.2 1.2 2.2 2.2 1.3 1.3 2.3 2.3 1.4, 2.4 1.4, 2.4 7280_en_02 Connector 8 (AI3) 1.1 2.1 1.2 2.2 1.3 2.3 1.4, 2.4 Connector 10 (AI4) 1.1 2.1 1.2 2.2 1.3 2.3 1.4, 2.4 Signal Assignment UISx (24 V) GNDiSx Ux+ UxIx+ IxShield Initiator supply for channel x Ground of UiSx Positive voltage input for channel x Negative voltage input for channel x Positive current input for channel x Negative current input for channel x Shield connection x = 1 to 4 PHOENIX CONTACT 15 ILB IB AI4 AO2 7.4 Terminal Point Assignment of the Connectors for the Analog RTD Inputs (RTD; connectors 5, 7, 9, and 11 in Figure 5 on page 14) Terminal Point Signal Connector 5 Connector 7 Connector 9 Connector 11 (RTD1) (RTD2) (RTD3) (RTD4) 1.1 1.1 1.1 1.1 Ix+ 2.1 1.2 2.1 1.2 2.1 1.2 2.1 1.2 – Ix- 2.2 1.3 2.3 1.4, 2.4 2.2 1.3 2.3 1.4, 2.4 2.2 1.3 2.3 1.4, 2.4 2.2 1.3 2.3 1.4, 2.4 – UxUx+ Shield 7.5 Assignment Positive constant current supply for RTD sensor channel x Reserved Negative constant current supply for RTD sensor channel x Reserved Negative voltage input for RTD sensor channel x Positive voltage input for RTD sensor channel x Shield connection x = 1 to 4 Terminal Point Assignment of the Connectors for the Analog Outputs (AO, connector 12 in Figure 5 on page 14) Terminal Signal Point Connector 12 (AO) 1.1 U1/I1 2.1 U2/I2 1.2 U1/I1 2.2 U2/I2 1.3 2.3 1.4, 2.4 AGND AGND Shield Assignment Voltage or current output channel 1 Voltage or current output channel 2 Voltage or current output channel 1 Voltage or current output channel 2 Analog ground channel 1 Analog ground channel 2 Shield connection The relevant unused terminal point for voltage or current output of a channel can be used for test purposes. 7280_en_02 PHOENIX CONTACT 16 ILB IB AI4 AO2 8 Connection Notes Always connect the analog sensors using shielded, twisted pair cables. Connect the shielding to the module using the shield connection clamp. The clamp connects the shield to FE on the module side. Avoid connection to FE from both sides. The module is supplied with a shield connector and a standard connector for each input channel. The shield connection can be used for the standard signal (current/voltage) as well as for the RTD signal. The module has an FE spring (metal clip) on the bottom of the electronics base. This spring establishes an electrical connection to the DIN rail. Use grounding terminals to connect the DIN rail to protective earth ground. The module is grounded when it is snapped onto the DIN rail. To ensure reliable functional earth grounding of the module even when the DIN rail is dirty or the metal clip is damaged, always ground the module via the FE terminal point (see Figure 6). Connection Examples IN OUT + Figure 6 - AI RTD AI RTD AI RTD AI RTD AO 4 5 6 7 8 9 10 11 12 U UL - U- + INTERBUS 3 S - OUT2 2 + 1 + 9 7280B005 General connection example Ideal current source Application: Passive 2-wire transmitter The numbers above the module illustration indicate the connector slots. OUT2 Variable resistor 7280_en_02 General actuator PHOENIX CONTACT 17 ILB IB AI4 AO2 + Connection Examples for Analog Inputs - + 9.1 - Ideal current source Ideal voltage source AI AI 2 1 24VGND 1 1 U+ U2 - 3 4 4 + 3 1 1 U+ U2 2 I+ I- IS 2 24VGND + 1 2 US I+ I3 3 4 4 7280A009 7280A006 Figure 7 Voltage measurement - Figure 10 Differential mode voltage measurement, e.g., for shunt, jumpering, and battery charging applications AI 1 2 AI 24VGND 1 1 1 2 U+ U2 I+ I3 - 24VGND 1 1 U+ U- 3 2 4 + 4 7280A007 Figure 8 2 I+ I3 3 4 4 Current measurement GND - 24 V + 2 7280A010 Figure 11 Active transmitter (4 mA to 20 mA) AI 1 2 24VGND 1 1 U+ U2 I+ I3 3 4 4 + 2 7280A008 Figure 9 7280_en_02 Passive transmitter (4 mA to 20 mA) PHOENIX CONTACT 18 ILB IB AI4 AO2 9.2 Connection Examples for RTD Inputs 9.3 Connection Examples for Analog Outputs RTD 1 AO 2 1 I+ RES 1 1 I- I+ RL 1 I- RES 2 2 U1 U2 2 I1 RL U- U+ 1 I1 I2 2 2 I2 OUT1 OUT2 3 3 3 3 4 4 4 4 7280B011 Figure 12 RTD 2-wire connection with connector compensation 7280A014 Figure 15 Please refer to the connection notes for the RTD 2-wire connection in "RTD 2-Wire Connection With Connector Compensation" on page 41. Analog current output AO 1 2 U1 1 1 I1 RTD 1 U1 2 2 3 3 4 4 OUT1 2 OUT2 U2 I+ RES 1 1 RL I+ I- I- RES 2 2 7280A015 RL U- U+ 3 3 4 4 U- (I = 0 µA) RL Figure 16 Analog voltage output 7280A012 Figure 13 RTD 3-wire connection RTD 1 I+ RES 1 2 U+ (I = 0 µA) 2 RL I+ 1 I- RES RL 2 RL U- U+ 3 3 4 4 RL I- U- (I = 0 µA) 7280A013 Figure 14 7280_en_02 RTD 4-wire connection PHOENIX CONTACT 19 ILB IB AI4 AO2 10 Programming Data ID code F3hex (243dec) Length code 05hex Process data channel 80 bits Input address area 5 words Output address area 5 words Parameter channel (PCP) 1 word Register length (bus) 6 words 11 Process Data The device has 5 process data words and 1 PCP word. OUT OUT1 Control word OUT2 Channel 1 OUT3 Channel 2 OUT4 Channel 3 OUT5 Channel 4 IN IN1 Status word IN2 Channel 1 IN3 Channel 2 IN4 Channel 3 IN5 Channel 4 Figure 17 7280_en_02 7280A026 Order of the process data words PHOENIX CONTACT 20 ILB IB AI4 AO2 11.1 Assignment of the Process Data to the Terminal Points for the "Read and Write Analog Values" Command Assignment of the Terminal Points for Connector 12 to the Process Data Output Words (Word.bit) view Word Bit (Byte.bit) view Word 2: Channel AO1 Word 3: Channel AO2 Word x 15 14 13 12 11 10 9 8 7 6 5 Byte 0 Byte 6 5 4 3 4 3 2 1 0 Byte 1 Bit 7 2 1 0 Signal Terminal point 1.1: Voltage output Terminal point 1.2: Current output Signal reference Terminal point 1.3: Analog ground Shielding (FE) Terminal point 1.4, 2.4 Signal Terminal point 1.1: Voltage output Terminal point 1.2: Current output Signal reference Terminal point 1.3: Analog ground Shielding (FE) Terminal point 1.4, 2.4 7 6 5 4 3 2 1 0 6 5 4 3 2 1 0 2 1 0 Assignment of the Terminal Points to the Process Data Input Words (Word.bit) view Bit (Byte.bit) view Bit 7280_en_02 15 14 13 12 11 10 9 8 7 Byte 0 Byte AI Signal Word 2: Channel 1 (connector 4) Signal reference Word 3: Channel 2 (connector 6) Shielding (FE) Word 4: Channel 3 (connector 8) Word 5: Channel 4 (connector 10) RTD Word 2: Channel 1 (connector 5) Word 3: Channel 2 (connector 7) Word 4: Channel 3 (connector 9) Word 5: Channel 4 (connector 11) Word x Word 7 6 5 4 3 Byte 1 2 1 0 7 6 5 4 3 Terminal point 1.2: Positive voltage input Terminal point 1.3: Positive current input Terminal point 2.2: Negative voltage input Terminal point 2.3: Negative current input Terminal point 1.4, 2.4 Signal Terminal point 2.3: Voltage input for RTD sensor Signal reference Terminal point 1.3 (negative voltage input for RTD sensor) Constant current supply Terminal point 1.1 (positive constant current supply) Terminal point 1.2 (negative constant current supply) Shielding (FE) Terminal point 1.4, 2.4 PHOENIX CONTACT 21 ILB IB AI4 AO2 12 OUT Process Data Words Five OUT process data words are available. The first output word (OUT1) represents the control word, the following words (OUT2 to OUT5) each refer to an analog channel. They are used for channel-specific configuration and to output analog values. As confirmation for a control word action, the first input word contains a partial copy of the control word. OUT1 Bit Assignment 15 14 Byte 0 13 12 11 10 Command code 9 8 7 0 6 0 5 0 Byte 1 4 3 0 0 2 0 1 0 0 0 Bit 15 to bit 8 (command code) 0 1 Bit 15 to Bit 8 0 0 0 0 0 0 OUT1 40xxhex Command Function Configure device. The channel parameters of the four channels are configured in OUT2 to OUT5. Read configuration. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 1 1 0 0 0 The configuration of each channel is displayed channel-by-channel in IN2. Configuration channel 1 Configuration channel 2 Configuration channel 3 Configuration channel 4 Read and write analog values. 0 1 0 1 1000hex 1100hex 1200hex 1300hex 0 1 0 The analog values for the input channels are displayed in IN2 to IN5. The analog values for the output channels are displayed in OUT2 and OUT3. 0000hex OUT process data not transmitted, the analog outputs are not modified. 0100hex The analog outputs accept the value specified via OUT2 and OUT3. 3C00hex Read device data. The firmware version and the device ID are displayed in IN2, see "Input Words IN2 to IN5" on page 23. 7280_en_02 PHOENIX CONTACT 22 ILB IB AI4 AO2 13 IN Process Data Words 13.1 Input Word IN1 (Status Word) OUT1 Bit Assignment 15 EB Byte 0 13 12 11 10 9 Mirrored command code* 14 8 7 0 6 0 5 0 Byte 1 4 3 0 0 2 0 1 0 0 0 Error bit: EB = 0 EB = 1 No error has occurred. An error has occurred. The error bit is available as a group error message. Possible errors and their effects are listed in "Diagnostics" on page 38. * Mirrored command code: A command code mirrored from the control word. Here, the MSB is suppressed. 13.2 Input Words IN2 to IN5 The measured values, firmware version or configuration are transmitted to the controller board or the computer via IN process data words IN2 to IN5 according to the configuration. IN1* IN2 IN3 IN4 Configure device. IN5 Configuration data following transmission to the channels Configuration data Configuration data Configuration data channel 2 channel 3 channel 4 Read configuration. 40xxhex Configuration data channel 1 1000hex 1100hex 1200hex 1300hex Configuration channel 1 Configuration channel 2 Configuration channel 3 Configuration channel 4 00xxhex 01xxhex Measured value of the analog input channel 1 3C00hex Firmware version and device ID, see below Not relevant Not relevant Not relevant Read and write analog values. Measured value of the Measured value of the analog input channel 2 analog input channel 3 Measured value of the analog input channel 4 Read device data. Not relevant Not relevant Not relevant * Input data IN1 contains the error bit and the mirrored command code. Example for "Read device data": IN2 Bit Assignment (hex) Meaning 7280_en_02 15 14 13 1 12 11 10 9 8 2 Firmware Version 1.23 7 6 5 3 4 3 2 1 0 4 Device ID 4hex PHOENIX CONTACT 23 ILB IB AI4 AO2 14 Formats for the Representation of Measured Values (IN2 to IN5) 14.1 Format: "IB IL" (Default Setting) The measured value is represented in bits 14 to 0. An additional bit (bit 15) is available as a sign bit. Measured value representation in "IB IL" format (15 bits) MSB 15 14 SB SB 13 12 11 10 9 8 7 6 Analog value 5 4 3 2 1 LSB 0 Sign bit This format supports extended diagnostics. Values > 8000hex and < 8100hex indicate an error. Following an error message in the status word (error bit), the following errors/messages are displayed in words IN2 to IN5: Input Data Word (hex) 8001 8002 8004 8020 8040 8080 Errors Overrange Open circuit Measured value invalid Sensor and/or analog supply not present Module faulty Underrange Significant Measured Values Input Data Word (Two's Complement) hex 8001 7F00 7530 0001 0000 FFFF 8AD0 8100 8080 8002 7280_en_02 dec Overrange 32512 30000 1 0 -1 -30000 -32512 Underrange Open circuit 0 V to 10 V UInput ±10 V UInput 0 V to 5 V UInput ±5 V UInput 0 mA to 20 mA IInput V V V V mA > +10.837 > +10.837 > +5.419 > +5.419 > +21.6747 +10.837 +10.837 +5.419 +5.419 +21.6747 +10.0 +10.0 +5.0 +5.0 +20.0 +333.33 μV +333.33 μV +166.67 μV +166.67 μV +0.6667 μA ≤0 0 ≤0 0 ≤0 – -333.33 μV – -166.67 μV – – -10.0 – -5.0 – – -10.837 – -5.419 – – < -10.837 – < -5.419 – – – – – – ±20 mA IInput mA > +21.6747 +21.6747 +20.0 +0.6667 μA 0 -0.6667 μA -20.0 -21.6747 < -21.6747 – 4 mA to 20 mA IInput mA > +21.339733 +21.339733 +20.0 +4.0005333 +4.0 ... +3.2 – – – – < +3.2 PHOENIX CONTACT 24 ILB IB AI4 AO2 Input Data Word (Two's Complement) hex dec 8001 Overrange 251C 9500 03E8 1000 0001 1 0000 0 FFFF -1 FC18 -1000 8080 Underrange R: 0 ... 3.2 kΩ RInput Ω > 3200 – 100.0 +0.1 ≤0 – – – R: 0 ... 9.5 kΩ RInput Ω > 10000 9500 1000 +1.0 ≤0 – – – Pt and Ni °C > Limit value – +100.0 +0.1 0 -0.1 -100.0 < Limit value For the limit values, please refer to "Limit Values for Temperature Measurement" on page 9. Output Data Word hex dec 8001 Overrange 7FFF to 7F01 – 7F00 +32512 7530 +30000 3A98 +15000 0001 +1 0000 0 FFFF -1 C568 -15000 8AD0 -30000 8100 -32512 80FF to 8000 – without 8001, 8080, 8002 8080 Underrange 8002 Line break 7280_en_02 0 V to 10 V UOutput ±10 V UOutput 0 V to 5 V UOutput ±5 V UOutput 0 mA to ±20 mA 4 mA to 20 mA IOutput 20 mA IOutput IOutput V V V V mA V mA +10.837 +10.837 +5.419 +5.419 +21.6764 +10.837 +21.3397 +10.837 +10.837 +5.419 +5.419 +21.6764 +21.6764 +21.3397 +10.837 +10.837 +5.419 +5.419 +21.6764 +21.6764 +21.3397 +10.0 +10.0 +5.0 +5.0 +20.0 +20.0 +20.0 +5.0 +5.0 +2.5 +2.5 +10.0 +10.0 +12.0 +333.33 μV +333.33 μV +166.67 μV +166.67 μV +0.6667μA +0.6667μA +4.000533 0 0 0 0 0 0 +4.0 0 -333.33 μV 0 -166.67 μV 0 -0.6667μA +4.0 0 -5.0 0 -2.5 0 -10.0 +4.0 0 -10.0 0 -5.0 0 -20.0 +4.0 0 -10.837 0 -5.419 0 -21.6764 +4.0 HOLD HOLD HOLD HOLD HOLD HOLD HOLD 0 HOLD -10.837 HOLD 0 HOLD -5.419 HOLD 0 HOLD -10.837 HOLD HOLD 0 PHOENIX CONTACT 25 ILB IB AI4 AO2 14.2 Format: "RT" The measured value is represented in bits 14 to 0. An additional bit (bit 15) is available as a sign bit. Measured value representation in "RT" format (15 bits) MSB 15 14 SB SB 13 12 11 10 9 8 7 6 Analog value 5 4 3 2 1 LSB 0 Sign bit Significant Measured Values Input Data Word hex 7FFF 0001 0000 FFFF 8001 dec 32767 +1 0 -1 -32767 Output Data Word hex 7FFF 0001 0000 FFFF 8001 7280_en_02 dec +32767 +1 0 -1 -32767 0 V to 10 V UInput ±10 V UInput V ≥ +10.0 +305.18 μV ≤0 – – V ≥ +10.0 +305.18 μV 0 -305.18 μV ≤ -10.0 0 V to 10 V UOutput ±10 V UOutput V +10.0 +305.18 μV ≤0 0 0 V +10.0 +305.18 μV 0 -305.18 μV -10.0 0 V to 5 V UInput V ≥ +5.0 +152.6 μV ≤0 – – 0 V to 5 V UOutput V +5.0 +152.6 μV ≤0 0 0 ±5 V UInput V ≥ +5.0 +152.6 μV 0 -152.6 μV ≤ -5.0 ±5 V UOutput V +5.0 +152.6 μV 0 -152.6 μV -5.0 0 mA to 20 mA IInput mA ≥ +20.0 +0.610 μA ≤0 – – 0 mA to 20 mA IOutput mA +20.0 +0.610 μA ≤0 0 0 ±20 mA IInput mA ≥ +20.0 +0.610 μA 0 -0.610 μA ≤ -20.0 ±20 mA IOutput V +20.0 +0.610 μA ≤0 -0.610 μA -20.0 4 mA to 20 mA IInput mA ≥ +20.0 +4.000488 µA 4.0 – < 3.7 4 mA to 20 mA IOutput mA +20.0 +4.000488 +4.0 +4.0 +4.0 PHOENIX CONTACT 26 ILB IB AI4 AO2 14.3 Format: "S7-Compatible" The measured value is represented in bits 14 to 0. An additional bit (bit 15) is available as a sign bit. Measured value representation in "S7-compatible" format MSB 15 14 SB SB 13 12 11 10 9 8 7 6 Analog value 5 4 3 2 1 LSB 0 Sign bit Significant Measured Values Input Data Word hex 7FFF 7EFF 6C00 0001 0000 FFFF F940 8000 9400 8100 8000 dec Overrange +32511 +27648 +1 0 -1 -1728 Line break -27648 -32519 Underrange 0 V to 10 V UInput ±10 V UInput 0 V to 5 V UInput ±5 V UInput 0 mA to ±20 mA 4 mA to 20 mA IInput 20 mA IInput IInput V V V V mA mA mA > +11.759 > +11.759 > +5.879 > +5.879 > +23.5157 > +23.5157 > +22.8142 +11.759 +11.759 +5.879 +5.879 +23.5157 +23.5157 +22.8142 +10.0 +10.0 +5.0 +5.0 +20.0 +20.0 +20.0 +361.69 μV +361.69 μV +180.85 μV +180.85 μV +0.7234 μA +0.7234 μA +4.000578 ≤0 0 ≤0 0 ≤0 0 +4.0 – -361.69 μV – -180.85 μV – -0.7234 μA +3.999422 – -0.625 – -0.3125 – -1.25 +3.0 – – – – – – < +1.1852 – -10 – -5.0 – -20.0 – – -11.759 – -5.879 – -23.516 – – < -11.759 – < -5.879 – < -23.516 – Formula for Calculating the Measured Value from the Process Data Input Value for the 4 mA to 20 mA Measuring Range Measured value = PD IW x 0.0005787 mA + 4 mA PD IW = Process data Example 1 PD IW Value x resolution + 4 mA Measured value 6C00hex = 27648dec 27648 x 0.0005787 mA = 16 mA 16 mA + 4 mA = 20 mA 20 mA Example 2 PD IW Value x resolution + 4 mA Measured value F940hex -> FFFFhex - F940hex + 1 = -1728dec -1728 x 0.0005787 mA = -1 mA -1 mA + 4 mA = 3 mA 3 mA 7280_en_02 PHOENIX CONTACT 27 ILB IB AI4 AO2 Input Data Word (Two's Complement) hex dec 7FFF Overrange 251C 9500 03E8 1000 0001 1 0000 0 FFFF -1 FC18 -1000 8000 Underrange Output Data Word hex 7FFF to 7F00 7EFF 6C00 5100 1 0 FFFF E501 E500 AF00 9400 8100 80FF to 8000 7280_en_02 dec Overrange +32511 +27648 +20736 +1 0 -1 -6911 -6912 -20736 -27648 -32511 Underrange R: 0 ... 3.2 kΩ RInput Ω > 3200 – 100.0 0.1 ≤0 – – – R: 0 ... 9.5 kΩ RInput Ω > 10000 9500 1000 1 ≤0 – – – 0 V to 10 V UOutput ±10 V UOutput 0 V to 5 V UOutput ±5 V UOutput V 0 V 0 V 0 V 0 0 mA to 20 mA IOutput mA 0 Pt and Ni °C > Limit value – +100.0 +0.1 0 -0.1 -100.0 < Limit value ±20 mA IOutput mA 0 4 mA to 20 mA IOutput mA 0 +11.7589 +11.7589 +5.8800 +5.8800 +23.5150 +23.5150 +22.8100 +10.0000 +10.0000 +5.0000 +5.0000 +20.0 +20.0 +20.0 +7.5000 +7.5000 +3.7500 +3.7500 +15.0 +15.0 +16.0 +361.69 μV +361.69 μV +180.845 μV +180.845 μV +0.7234 μA +0.7234 μA +4.000578 0 0 0 0 0 0 +4.0 0 -361.69 μV 0 -180.845 μV 0 -0.7234 μA +3.99942 0 -2.4996 0 -1.2498 0 -4.99942 +0.578 μA 0 -2.5000 0 -1.2500 0 -5.0 0 0 -7.5000 0 -3.7500 0 -15.0 0 0 -10.0000 0 -5.0000 0 -20.0 0 0 -11.7589 0 -5.8800 0 -23.5157 0 0 0 0 0 0 0 0 PHOENIX CONTACT 28 ILB IB AI4 AO2 14.4 Format: "Standardized Representation" The data is represented in bits 14 to 0. An additional bit (bit 15) is available as a sign bit. In this format, data is standardized to the measuring range and represented in such a way that it indicates the corresponding value without conversion. In this format one bit has the value of 1 mV or 1 μA. Measured value representation in "standardized representation" format MSB 15 14 SB SB 13 12 11 10 9 8 7 6 Analog value 5 4 3 2 1 LSB 0 Sign bit This format supports extended diagnostics. Values > 8000hex and < 8100hex indicate an error. Following an error message in the status word (error bit), the following errors/messages are displayed in words IN2 to IN5: Input Data Word (hex) 8001 8002 8004 8020 8040 8080 Errors Overrange Open circuit Measured value invalid Analog supply not present Module faulty Underrange Significant Measured Values Input Data Word hex 8001 4E20 2710 1388 0001 0000 FFFF EC78 D8F0 B1E0 8080 8002 7280_en_02 dec Overrange +20000 +10000 +5000 +1 0 -1 -5000 -10000 -20000 Underrange Open circuit 0 V to 10 V UInput ±10 V UInput 0 V to 5 V UInput ±5 V UInput V > +10.837 – +10.0 +5.0 +0.001 ≤0 – – – – – – V > +10.837 – +10.0 +5.0 +0.001 0 -0.001 -5.0 -10.0 – < -10.837 – V > +5.419 – – +5.0 +0.001 ≤0 – – – – – – V > +5.419 – – +5.0 +0.001 0 -0.001 -5.0 – – < -5.419 – 0 mA to ±20 mA 4 mA to 20 mA IInput 20 mA IInput IInput mA mA mA > +21.6747 > +21.6747 ≥ +21.339 +20.0 +20.0 – +10.0 +10.0 +14.0 +5.0 +5.0 +9.0 0.001 0.001 +4.001 ≤0 0 +4.0 ... +3.2 – -0.001 – – -5.0 – – -10.0 – – -20.0 – – < -21.6747 – – – < +3.2 PHOENIX CONTACT 29 ILB IB AI4 AO2 Input Data Word (Two's Complement) hex dec 8001 Overrange 251C 9500 03E8 1000 0001 1 0000 0 FFFF -1 FC18 -1000 8080 Underrange Output Data Word hex 8001 7FFF to 54AB 54AA 4E20 2710 1388 0001 0000 FFFF EC78 D8F0 B1E0 AB56 AB55 to 8100 80FF to 8000 without 8001, 8080, 8002 8080 8002 7280_en_02 R: 0 ... 3.2 kΩ RInput Ω > 3200 – 100.0 +0.1 ≤0 – – – R: 0 ... 9.5 kΩ RInput Ω > 10000 9500 1000 +1.0 ≤0 – – – 0 V to 10 V UOutput ±10 V UOutput 0 V to 5 V UOutput ±5 V UOutput dec Overrange – V +10.837 +10.837 V +10.837 +10.837 V +5.419 +5.419 +21674 +20000 +10000 +5000 1 0 -1 -5000 -10000 -20000 -21674 – +10.837 +10.837 +10.0 +5.0 +1 mV 0 0 0 0 0 0 0 +10.837 +10.837 +10.0 +5.0 +1 mV 0 -1 mV -5.0 -10.0 -10.837 -10.837 -10.837 – HOLD Underrange Line break 0 HOLD Pt and Ni °C > Limit value – +100.0 +0.1 0 -0.1 -100.0 < Limit value V +5.419 +5.419 0 mA to 20 mA IOutput mA +21.674 +21.674 ±20 mA IOutput mA +21.674 +21.674 4 mA to 20 mA IOutput mA +21.3397 +21.3397 +5.419 +5.419 +5.419 +5.0 +1 mV 0 0 0 0 0 0 0 +5.419 +5.419 +5.419 +5.0 +1 mV 0 -1 mV -5.0 -5.419 -5.419 -5.419 -5.419 +21.674 +20.0 +15.0 +5.0 +1 μA 0 0 0 0 0 0 0 +20.0 +20.0 +10.0 +5.0 +1 μA 0 -1 μA -5.0 -10.0 -20.0 -21.674 -21.674 +21.3397 +21.3397 +14.0 +9.0 +4.001 +4.0 +4.0 +4.0 +4.0 +4.0 +4.0 +4.0 HOLD HOLD HOLD HOLD HOLD HOLD -10.837 HOLD 0 HOLD -5.419 HOLD 0 HOLD -21.674 HOLD HOLD 0 PHOENIX CONTACT 30 ILB IB AI4 AO2 15 Configuration Module configuration is only required if the channels are not to be operated with the default values (see "Parameters for Configuration" on page 32). You can either configure the module via process data or via PCP and transmit analog values accordingly. If the module has been configured via PCP, subsequent configuration via process data is only possible if configuration via process data is permitted with the "Config Table" PCP object. To do this, in the "AO format, AI format, system bits" element set "Conf" bit = 1. As long as "Conf" = 0, the error bit is set in the status word when an attempt is made to configure via process data. 16 Configuration via Process Data Five OUT process data words are available. The first output word represents the control word, the following words each refer to an analog channel. As confirmation for a control word action, the first input word contains a partial copy of the control word. For the device configuration, channel-specific parameter data is set in the relevant channel output words. Once configuration has been completed, and depending on the format set, the measured values in the corresponding input words are either transmitted to the controller board or to the computer. Bit 16.1 15 to 8 40hex 7 0 6 0 OUT1 5 4 0 PF 3 2 AO format 1 OUT2 OUT3 OUT4 OUT5 Configuration AI1/AO1 Configuration AI2/AO2 Configuration AI3 Configuration AI4 0 AI format Output Word OUT1 (Control Word) for Command Code 40xxhex (Configure Device) OUT1 Bit Assignment 15 14 Byte 0 13 12 11 10 Command code 40hex 9 8 7 0 6 0 5 0 Byte 1 4 3 2 PF AO format 1 0 AI format Bit 4 Code (bin) PF (Peripheral Fault in the Event of Sensor Error) 0 Not permitted (default) 1 Permitted Bit 3 and bit 2 Code (bin) 00 01 10 11 AO Format IB IL (15 bits) (default) RT S7-compatible Standardized representation Bit 1 and bit 0 Code (bin) 00 01 10 11 7280_en_02 AI Format IB IL (15 bits) (default) RT S7-compatible Standardized representation PHOENIX CONTACT 31 ILB IB AI4 AO2 16.2 Output Words OUT2 to OUT5 (Configuration) Each channel can be configured independently of the other channels. The first channel is configured via the second output word, the second channel via the third output word, etc. If the format "IB IL" is set, the error code "measured value invalid" is output during configuration. If the configuration is invalid, a corresponding error message is output in the status word. The configuration is stored in a volatile memory. For command 40xxhex, specify the parameters for the appropriate channels 1 to 4 in OUT2 to OUT5. The parameter words are only evaluated by this command. Configuration words for analog inputs and outputs: OUTx (x = 2 to 5) Byte Bit Assignment – – – – – 15 14 Wire Byte 0 13 12 11 AO reset Res. behavior 10 9 8 AO output range "Wire" indicates the number of wires for a resistance measurement. It is only relevant for the "Linear R ...", "Pt ...", and "Ni ..." AI measuring range options (codes 7hex to Ehex). "AO reset behavior" indicates the status of the analog outputs in the event of an INTERBUS reset and following power up. The failsafe value must be specified retentively via the Config Table PCP object. "AO output range" indicates the range for the analog outputs. "AI filter" indicates the time for the digital filter. "AI measuring range" indicates the range for the analog inputs. An error message is generated during configuration due to the following reasons: – A reserved value was used. – Current or voltage is configured for "AI measuring range" AND 3 or 4-wire is configured for "Wire". – Configuration has already been carried out via PCP. 7 Res. 6 AI filter 5 Byte 1 4 3 2 1 AI measuring range 0 Parameters for Configuration The values displayed in bold are default settings. Bit 15 and bit 14 Code (bin) 00 01 10 11 Wire 2-wire (default) 3-wire 4-wire, 2-wire with connector compensation Reserved Bit 13 and bit 12 Code (bin) 00 01 10 11 AO Reset Behavior Hold (default) Reset Failsafe value Reserved Bit 10 to bit 8 Code (bin) 000 001 010 011 100 101 110 111 Code (hex) 0 1 2 3 4 5 6 7 AO Output Range 0 V to 10 V (default) ±10 V 0 V to 5 V ±5 V 0 mA to 20 mA ±20 mA 4 mA to 20 mA Reserved Bit 6 Code (bin) AI Filter 0 4.5 ms (default) 1 1.1 ms 7280_en_02 PHOENIX CONTACT 32 ILB IB AI4 AO2 Bit 5 to bit 0 Code (dec) 0 1 2 3 4 5 6 7 8 16.3 AI Measuring Range (bin) 00 0000 00 0001 00 0010 00 0011 00 0100 00 0101 00 0110 00 0111 00 1000 (hex) 0 1 2 3 4 5 6 7 8 0 V to 10 V (default) ±10 V 0 V to 5 V ±5 V 0 mA to 20 mA ±20 mA 4 mA to 20 mA Linear R: 0 Ω to 3200 Ω Linear R: 0 Ω to 9500 Ω Code (dec) 9 10 11 12 13 14 AI Measuring Range (bin) 00 1001 00 1010 00 1011 00 1100 00 1101 00 1110 (hex) 9 A B C D E F - 3F Pt 100 DIN Pt 500 DIN Pt 1000 DIN Ni 100 DIN Ni 1000 DIN Ni 1000 L&S Reserved Example for the Module Configuration via Process Data For easy module configuration a function block can be downloaded at www.phoenixcontact.com. All input channels are configured differently. PF Not permitted AO Format IB IL AI Format IB IL OUTx Channel Wire OUT2 OUT3 OUT4 OUT5 AI1/AO1 AI2/AO2 AI3 AI4 Step 1 Process Data OUT1 = 0000hex 2 Wait until IN1 = 0000hex OUT5 = 800Bhex OUT4 = 8009hex OUT3 = 0144hex OUT2 = 0400hex OUT1 = 4000hex Wait until IN1 = 4000hex 3 4 7280_en_02 2-wire 2-wire 4-wire 2-wire with connector compensation Configuration Value OUT1 (hex) xx00 AO Reset AO Output Behavior Range Hold 0 mA to 20 mA Hold ±10 V – – – – Filter Time AI Measuring Range Configuration Value OUTx (hex) 4.5 ms 0 V to 10 V 0400 1.1 ms 0 mA to 20 mA 0144 4.5 ms Pt 100 DIN 8009 4.5 ms Pt 1000 DIN 800B Meaning Ensures that the following values for OUT2 and OUT3 are not evaluated as an analog output Awaiting confirmation Step Process Data 5 OUT1 = 0000hex 6 7 Specified configuration 8 Awaiting confirmation 9 Wait until IN1 = 0000hex OUT3 = analog value AO2 OUT2 = analog value AO1 OUT1 = 0100hex Wait until IN1 = 0100hex Measured value channel 1 = IN2, ..., Measured value channel 4 = IN5 OUT1 = 0100hex Meaning Requesting the measured values of channels 1 to 4 Awaiting confirmation Outputting analog values Awaiting confirmation Reading measured values PHOENIX CONTACT 33 ILB IB AI4 AO2 17 Configuration via PCP By default upon delivery, the device is configured according to the default settings (see "Parameters for Configuration" on page 32). In PCP mode, the device is configured with the "Config Table" object. Index 0080hex N: L: Data Type Array of Unsigned 16 N 7 Number of elements Length of an element in bytes L 2 Meaning Device configuration rd: wr: Read access permitted Write access permitted Object Name Config Table Rights rd/wr Config Table Object Configure the device using this object. Object Description Object Config Table Access Read, write Data type Array of Unsigned 16 7 x 2 bytes Index 0080hex Subindex 00hex 01hex 02hex 03hex 04hex 05hex 06hex 07hex Write all elements Configuration channel 1 (AI1, AO1) Configuration channel 2 (AI2, AO2) Configuration channel 3 (AI3) Configuration channel 4 (AI4) AO format, AI format, system bits Failsafe value AO1 Failsafe value AO2 Length (bytes) 0Ehex 02hex Subindex 00hex Subindex 01hex to 07hex Data Device configuration Element Value Range The "Configuration channel x" elements have the following structure: Bit Assignment 15 14 Wire 13 12 AO reset 11 Res. OUTx (x = 2 to 5) 10 9 8 7 6 AO output range AI filter 5 4 3 2 1 AI measuring range 0 For the value ranges for the individual parameters, please refer to Section "Parameters for Configuration" on page 32. The "AO format, AI format, system bits" element has the following structure: Bit Assignment 7280_en_02 15 0 14 0 13 0 12 0 11 10 AO format 9 8 AI format 7 0 6 0 5 0 4 0 3 0 2 PF 1 0 AOV Conf PHOENIX CONTACT 34 ILB IB AI4 AO2 For the value ranges for the "AO format" and "AI format" parameters, please refer to Section "Parameters for Configuration" on page 32. "PF" If bit 2 = 1, a peripheral fault is generated in the event of a sensor problem (overrange, underrange, open circuit). "AOV" If bit 1 = 1, the "Analog Out Values" object may be written. This specifies that analog values for AO1 and AO2 are specified via PCP and not via process data. "Conf" If bit 0 = 1, configuration via process data is permitted (command code 40xxhex). The format of the failsafe value must be the Inline format. If an invalid configuration is specified, a negative confirmation is generated with error message 08hex, 00hex or xx30hex. The low byte of the additional error code is 30hex (value is out of range), the high byte contains the number of the affected element. Example: Config Table is completely written with data (subindex 00) and the entry for channel 2 is invalid. In this case, the additional error code is equal to 0230hex. 18 PCP Communication For information on PCP communication, please refer to the IBS SYS PCP G4 UM E and IBS PCP COMPACT UM E user manuals. 18.1 Object Dictionary Index 0080hex 0081hex 0085hex 0018hex N: L: Data Type Array of Unsigned 16 Array of Unsigned 16 Array of Unsigned 16 Record Number of elements Length of an element in bytes 7280_en_02 N 7 4 2 6 L 2 2 2 17 Meaning Device configuration Input Data Output data Diagnostic status rd: wr: Read access permitted Write access permitted Object Name Config Table Analog In Values Analog Out Values DiagState Rights rd/wr rd rd/wr rd PHOENIX CONTACT 35 ILB IB AI4 AO2 18.2 Object Description Config Table Object Configure the device using this object. See "Config Table Object" on page 34. Analog In Values Object The elements of this object contain the analog values of the channels in the format that was selected for this channel. Object Description Object Analog In Values Access Read Data type Array of Unsigned 16 Index 0081hex Subindex 00hex 01hex 02hex 03hex 04hex Read all elements Analog value channel 1 (AI1) Analog value channel 2 (AI2) Analog value channel 3 (AI3) Analog value channel 4 (AI4) Length (bytes) 08hex 02hex Subindex 00hex Subindex 01hex to 04hex Data Analog values of the channels (input data) 4 x 2 bytes Analog Out Values Object The elements of this object specify the analog values of the output channels in the format that was selected for the relevant channel. Write access must be enabled in order to ensure error-free writing. To do this, in the "Config Table" object in element 5 set bit 1 (AOV) = 1. If write access is not enabled, a negative write confirmation will be generated with error message 08, 00, 0022hex (Service cannot be executed at present). Object Description Object Analog Out Values Access Read/write Data type Array of Unsigned 16 Index 0085hex Subindex 00hex 01hex 02hex Read/write all elements Analog value channel 1 (AO1) Analog value channel 2 (AO2) Length (bytes) 04hex 02hex Subindex 00hex Subindex 01hex to 02hex Data Analog values of the channels (output data) 7280_en_02 2 x 2 bytes PHOENIX CONTACT 36 ILB IB AI4 AO2 DiagState Object The elements of this object contain the current diagnostic status of the device. Object Description Object DiagState Access Read Data type Record Index 0018hex Subindex 00hex Read all elements 01hex Consecutive no. Unsigned 16 (2 bytes) 02hex Priority Unsigned 8 (1 byte) 03hex Channel Unsigned 8 (1 byte) 04hex Code Unsigned 16 (2 bytes) 05hex MoreFollows Unsigned 8 (1 byte) 06hex Text OctetString (10 bytes) Length (bytes) 11hex 01hex 02hex 0Ahex Subindex 00hex Subindex 02hex, 03hex, 05hex Subindex 01hex, 04hex Subindex 06hex Data Diagnostic status of the device Consecutive no. Priority Channel Code MoreFollows Text 7280_en_02 Meaning Unique, consecutive error number since the last power up reset or history reset Priority of the message Possible Values 0 to 65535 If Code = 0000hex, Priority = 00hex otherwise Priority = 02hex If Code = 0000hex, Channel = 00hex otherwise Channel = 01hex to 04hex Error code 0000hex: No error 8910hex: Overrange 8920hex: Underrange 7710hex: Cable break 5160hex: Power supply error 5010hex: Hardware fault 00hex = No additional information is available 00hex for this error. The first 10 characters of the status message. If Code = 0000hex, Default: "Status OK" Text = "Status OK" otherwise text contains error-specific information PHOENIX CONTACT 37 ILB IB AI4 AO2 19 Diagnostics Error Table With Diagnostic Data and Status Indicators Error Type Diagnostic Data Status Indicators Sensor Supply Sensor supply failure or sensor Message in the process data: supply voltage too low Indication of error code 8020hex in the measured value (only for "IB IL" and "standardized representation" format) US LED is OFF, SF LED lights up red, E1 to E4 LEDs light up red Sensor supply short circuit SF LED lights up red, Ex LED lights up red Message in the process data: Indication of error code 8020hex in the measured value (only for "IB IL" and "standardized representation" format) Analog Inputs Open circuit during temperature Message in the process data: measurement or in the range Indication of error code 8002hex in the measured value (only for "IB IL" and "standardized representation" format) from 4 mA to 20 mA Ex LED lights up red Analog Outputs Output value channel 1 ≥ 5% of measuring range final value LED 1 lights up yellow Output value channel 2 ≥ 5% of measuring range final value LED 2 lights up yellow General Voltage failure of the internal analog device supply (5 V and 15 V) Message in the process data: Indication of error code 8020hex in the measured value (only for "IB IL" and "standardized representation" format) Faulty configuration Message in the process data Additional peripheral fault message sent to the control system Module faulty Message in the process data: (e.g., due to component failure) Indication of error code 8040hex in the measured value (only for "IB IL" and "standardized representation" format) Overrange of the measuring range Message in the process data: Indication of error code 8001hex in the measured value (only for "IB IL" and "standardized representation" format) Additional peripheral fault message sent to the control system, if this is permitted Underrange of the measuring range Message in the process data: Indication of error code 8080hex in the measured value (only for "IB IL" and "standardized representation" format) Additional peripheral fault message sent to the control system, if this is permitted In the event of a message in the process data, the error bit is always set. 7280_en_02 PHOENIX CONTACT 38 ILB IB AI4 AO2 20 Channel Conversion Times and Process Data Update Time The process data update time is determined from the sum of the channel conversion times for all four channels. The analog outputs must be maintained within these times. The conversion time of a channel is determined from the channel parameterization and combines the filter time plus special additional times. Channel conversion time = (Filter time + Time for resistance measurement + Measuring time for 4-wire connection) x 3-wire factor Filter Time Filter 1: 4.5 ms Filter 2: 1.1 ms Time for Resistance 4-Wire Measuring Time 3-Wire Factor Measurement 0.2 ms for all resistance 1 ms, if resistor is connected in 4-wire 2 ms, if resistor is connected in measurements technology 3-wire technology; otherwise 1 ms Example: Channel 1: Measuring range 0 V to 10 V, filter time = 4.5 ms Channel 2: Measuring range 0 mA to 20 mA, filter time = 1.1 ms Channel 3: Measuring range Pt 100, filter time = 4.5 ms, 4-wire Channel 4: Measuring range Pt 1000, filter time = 4.5 ms, 2-wire with connector compensation Channel Configuration [hex] Filter Time Time for Resistance Measurement 1 0000 4.5 ms 0 ms 2 0044 1.1 ms 0 ms 3 8009 4.5 ms 0.2 ms 4 800B 4.5 ms 0.2 ms Process data update time = total of all channel conversion times 4-Wire Measuring Time* 0 ms 0 ms 1 ms 1 ms 3-Wire Factor 1 1 1 1 Channel Conversion Time 4.5 ms 1.1 ms 5.7 ms 5.7 ms 17 ms * 4-wire measuring time also applies for 2-wire with connector compensation Analog Conversion Time According to the Example Above: Channel 3 Channel 1 Channel 2 0 2 Figure 18 7280_en_02 4 Channel 1 ... Channel 4 6 8 10 12 14 16 18 20 7285B021 Analog conversion time according to the example above PHOENIX CONTACT 39 ILB IB AI4 AO2 21 Behavior of the Analog Outputs in the Event of INTERBUS Reset and Power Up Both analog outputs behave independently of each other. Event INTERBUS reset AO Reset Behavior Hold Reset Failsafe Power up Hold Reset Failsafe Response Analog value is held If AO output range 4 mA to 20 mA is configured, 4 mA is output, otherwise 0 mA or 0 V is output The failsafe value for the corresponding channel that is specified in the "Config Table" object is output Output of 0 V 0 V or 0 mA 0 V or 0 mA 22 The extent of systematic and random errors (signal/noise ratio) is greatly influenced by the connection method and filter time selected. The lowest level of systematic and random deviations can be achieved by selecting 4-wire technology and a filter time of 4.5 ms. 22.1 – – – – – – 7280_en_02 Notes on Systematic and Random Errors During Resistance and Temperature Measurement Measures to Optimize Tolerances Set the filter time to 4.5 ms (default setting). Reduce random errors through additional application filtering. Minimize a large part of systematic errors through user-specific system calibration. Short circuit unused RTD channels. Increase the sensor ground (connect sensor ground, e.g., to a metal block). Attention: Connect only one end of the shielding. For 2-wire connection, use the version with connector compensation. PHOENIX CONTACT 40 ILB IB AI4 AO2 22.2 Connection Method RTD 4-Wire Connection The contact resistance of the connections and the cable resistances have virtually no effect due to the 4-wire connection technology. RTD 1 U+ (I = 0 µA) 2 I+ RES 1 I+ 1 I- RES RL 2 RL 2 I- U- U+ 3 3 4 4 U- (I = 0 µA) 7285A018 Figure 19 22.3 RTD 4-wire connection RTD 3-Wire Connection RTD 2-Wire Connection With Connector Compensation 2-wire technology is a more cost-effective connection method. The long U+ and U- cables to the sensor are no longer needed here. They are jumpered directly at the connector. The temperature-related voltage is not directly measured at the sensor and therefore not falsified by the two cable resistances RL. This connection method is ideal for sensors with high R0 (e.g., Pt 1000, Ni 1000). With 2-wire connection with connector compensation, minimized tolerances can be achieved through: – Parameterization of the terminal on a 4-wire connection – Direct jumpering of the U+ and U- connections at the live measuring cables A larger conductor cross section and sensors with higher R0 further improve the tolerances of these connection versions. RTD 1 With 3-wire technology, the effect of the cable resistance on the measured result in the terminal is minimized by multiple measuring of the temperature-related voltage and corresponding calculations. With this connection method, one cable can be eliminated. RTD 1 1 I2 RL I+ I- RES 2 U- U+ 3 3 4 4 RL 7280B011 1 RL 2 U- U+ 3 3 4 4 Figure 21 I+ I- I- RES 2 1 2 I+ RES 1 2 I+ RES RTD 2-wire connection with connector compensation RL U- (I = 0 µA) 7285A017 Figure 20 7280_en_02 RTD 3-wire connection PHOENIX CONTACT 41 ILB IB AI4 AO2 22.4 Systematic Errors During Temperature Measurement With 2-Wire Technology With 2-wire connection method, the cable resistances are in series for the sensor resistance and result in systematic measuring errors. This is described in greater detail below. 1 5 .0 K 1 2 .0 D T 9 .0 (1 ) (2 ) 6 .0 2.5 K 2.0 DT 1.5 1.0 0.5 0.0 -30 (3 ) 3 .0 0 .0 0 .0 2 .5 5 .0 7 .5 1 0 .0 1 2 .5 1 5 .0 1 7 .5 m l 2 0 .0 -20 -10 0 +10 +20 +30 +40 +50 °C +60 TA 7285A023 Figure 24 Systematic temperature measuring error ΔT depending on the cable temperature TA 5 7 5 5 1 0 1 4 Systematic temperature measuring error ΔT depending on the cable length l Figure 22 Curves depending on the cable cross section A Temperature measuring error for A = 0.14 mm2 Temperature measuring error for A = 0.25 mm2 Temperature measuring error for A = 0.50 mm2 (1) (2) (3) (Measuring error valid for: copper cable χ = 57 m/Ωmm2, TA = 25°C and Pt 100 sensor) (Measuring error valid for: copper cable χ = 57 m/Ωmm2, l = 5 m, A = 0.25 mm2, and Pt 100 sensor) All diagrams show that the increase in cable resistance causes the measuring error. A considerable improvement is made through the use of Pt 1000 sensors. Due to the 10-fold higher temperature coefficient α (α = 0.385 Ω/K for Pt 100 to α= 3.85 Ω/K for Pt 1000) the effect of the cable resistance on the measurement is decreased by factor 10. All errors in the diagrams above would be reduced by factor 10. Figure 22 clearly shows the effect of the cable length on the cable resistance and therefore on the measuring error. The solution is to use the shortest possible sensor cables. 6.0 K 5.0 DT 4.0 3.0 2.0 1.0 0.0 Figure 23 shows the effect of the cable cross section on the cable resistance. Cables with a cross section of less than 0.5 mm2 cause errors to increase exponentially. 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 2 0.8 0.9 mm 1.0 A 7285A022 Figure 23 Systematic temperature measuring error ΔT depending on the cable cross section A Figure 24 shows the effect of the ambient temperature on the cable resistance. This parameter does not play a great role and can hardly be influenced but it is mentioned here for the sake of completeness. (Measuring error valid for: copper cable χ = 57 m/Ωmm2, TA = 25°C, l = 5 m, and Pt 100 sensor) 7280_en_02 PHOENIX CONTACT 42 ILB IB AI4 AO2 The formula for calculating the cable resistance is as follows: L = L = R R R L 2 0 l c x A 1 x ( 1 + 0 .0 0 4 3 x T A) K 1 x ( 1 + 0 .0 0 4 3 K x T A) Where: Cable resistance in Ω Cable resistance at 20°C in Ω Cable length in m Specific electrical resistance of copper in Ωmm2/m A Cable cross section in mm2 0.0043 1/K Temperature coefficient for copper Ambient temperature (cable temperature) TA in °C RL RL20 l χ Since there are two cable resistances in the measuring system (forward and return), the value must be doubled. The absolute measuring error in Kelvin [K] according to DIN can be obtained for platinum sensors using the average temperature coefficient α (α = 0.385 Ω/K for Pt 100; α = 3.85 Ω/K for Pt 1000). © PHOENIX CONTACT 02/2007 7280_en_02 PHOENIX CONTACT GmbH & Co. KG • 32823 Blomberg • Germany Phone: +49 - 52 35 - 30 0 • Fax: +49 - 52 35 - 34 12 00 www.phoenixcontact.com 43