PSI-MOS-RS422/FO…
Fiber optic converter for
RS-422/RS-485 4-wire/INTERBUS
INTERFACE
Data sheet
101974_en_04
1
© PHOENIX CONTACT - 2010-01-28
Description
PSI-MOS-RS422/FO… devices convert RS-422/RS-485
4-wire and INTERBUS interfaces to fiber optics.
A transparent protocol is used to convert all data rates up to
a maximum of 2000 kbps. The integrated optical diagnostics
enable fiber optic paths to be monitored continuously during
installation and even during operation. The floating switch
contact is activated when the signal level on the fiber optic
paths reaches a critical level. This early alarm generation
enables critical system states to be detected before they
result in failure.
PSI-MOS RS422/FO 850 ... devices are available for
longer paths and can be used for distances up to 2800 m
using HCS fiber and B-FOC fast connection technology and
up to 4800 m using multi-mode glass fiber.
The PSI-MOS system can be used with input voltages from
18 V DC to 32 V DC and in a temperature range from -20°C
to +60°C.
The main advantage of this system is the electrically
isolated connection of devices, which prevents the negative
effects of voltage equalization currents and electromagnetic
interference on the data cables. This increases the overall
availability of the system, and improves flexibility in terms of
the design of the network topology in a linear or star
structure.
PSI-MOS RS422/FO 660 ... devices are networked using
polymer fiber cable for distances up to 100 m and HCS fiber
cable for distances up to 800 m.
They are connected via F-SMA fast connection connectors,
which can be assembled locally within a few minutes.
If you have any technical problems, which you cannot resolve with the aid of this documentation, please contact
us during the usual office hours at:
Phone: +49 - 52 35 - 31 98 90
Fax: +49 - 52 35 - 33 09 99
E-mail: interface-service@phoenixcontact.com
Make sure you always use the latest documentation.
It can be downloaded at www.phoenixcontact.net/catalog.
This data sheet is valid for all products listed on the following page:
PSI-MOS-RS422/FO…
Table of contents
1
Description.................................................................................................................................. 1
2
Ordering data.............................................................................................................................. 3
3
Technical data ............................................................................................................................ 4
4
Safety regulations and installation notes..................................................................................... 7
4.1
4.2
5
Installation and operation ............................................................................................................................... 7
Installation in zone 2 ....................................................................................................................................... 7
Supported network structures..................................................................................................... 8
5.1
5.2
5.3
5.4
Point-to-point connections.............................................................................................................................. 8
Linear structures............................................................................................................................................. 8
Star structures ................................................................................................................................................ 8
Use in INTERBUS networks ........................................................................................................................... 9
6
Function elements ...................................................................................................................... 9
7
Definition of fiber optic diagnostics ............................................................................................10
7.1
7.2
8
Configuration .............................................................................................................................11
8.1
8.2
8.3
8.4
8.5
8.6
8.7
9
Point-to-point connections............................................................................................................................ 10
Star structures .............................................................................................................................................. 10
Operation in a point-to-point connection (DIP 1)........................................................................................... 11
Operation in a linear structure (DIP 1) .......................................................................................................... 11
Operation in a star structure (DIP 1) ............................................................................................................. 12
Operation in an INTERBUS system.............................................................................................................. 12
Connection to fiber optic interfaces from third-party suppliers (DIP 2) .......................................................... 12
Activating the redundancy function (DIP 3)................................................................................................... 12
Disabling the second fiber optic port (DIP 4) ................................................................................................ 12
Connection notes ......................................................................................................................13
9.1
9.2
9.3
9.4
Combined assembly with a system power supply unit (modular star coupler) .............................................. 13
Assembly as an individual device in the control cabinet (stand-alone) ......................................................... 14
Assembly in potentially explosive areas ....................................................................................................... 14
Removal ....................................................................................................................................................... 14
10 Cabling notes.............................................................................................................................15
10.1
10.2
10.3
10.4
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Connecting the supply voltage ..................................................................................................................... 15
Connecting the data cables/bus termination................................................................................................. 15
Wiring the switch contact.............................................................................................................................. 17
Connecting the fiber optic cables ................................................................................................................. 18
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PSI-MOS-RS422/FO…
2
Ordering data
Fiber optic converters
Description
Type
Order No.
Pcs./Pkt.
660 nm
PSI-MOS-RS422/FO 660 E
2708342
1
850 nm
PSI-MOS-RS422/FO 850 E
2708355
1
660 nm
PSI-MOS-RS422/FO 660 T
2708384
1
850 nm
PSI-MOS-RS422/FO 850 T
2708397
1
Accessories
Description
Type
Order No.
Pcs./Pkt.
System power supply unit for supplying a modular star coupler topology
MINI-SYS-PS 100-240AC/24DC/1.5
2866983
1
System power supply unit for supplying a modular star coupler topology, for
potentially explosive areas
MINI-PS-100-240AC/24DC/1.5/EX
2866653
1
End clamps
CLIPFIX 35
3022218
50
DIN rail connector, power supply and data (2 per device)
ME 17,5 TBUS1,5/5-ST-3,81GN
2709561
10
Termination device with integrated optical diagnostics for converting the
RS-422 interface to one fiber optic cable
T-coupler with integrated optical diagnostics for converting the RS-422
interface to two fiber optic cables
DIN rail connector, power supply only (2 per device)
ME 17,5 TBUS1,5/PP000-3,81BK
2890014
10
Polymer fiber connectors (4 connectors in the set)
PSM-SET-FSMA/4-KT
2799720
1
Polishing set for polymer fiber connectors
(required to assemble polymer fiber connectors)
PSM-SET-FSMA-POLISH
2799348
1
Fiber optic polymer fiber cable for indoor installation
PSM-LWL-KDHEAVY
2744319
1
F-SMA HCS fiber connectors (4 connectors in the set)
PSM-SET-FSMA/4-HCS
2799487
1
B-FOC (ST®) HCS fiber connectors (4 connectors in the set)
PSM-SET-B-FOC/4-HCS
2708481
1
Tool set for HCS connectors (F-SMA)
(required for HCS connector assembly)
PSM-HCS-KONFTOOL
2799526
1
Tool set for HCS connectors (B-FOC (ST®))
(required for HCS connector assembly)
PSM-HCS-KONFTOOL/B-FOC
2708465
1
Fiber optic HCS cable for indoor installation
PSM-LWL-HCS RUGGED-200/230
2799885
1
Fiber optic HCS cable for outdoor installation
PSM-LWL-HCSO-200/230
2799445
1
Fiber optic glass fiber cable for indoor installation
PSM-LWL-GDM-RUGGED-50/125
2799322
1
Fiber optic glass fiber cable for outdoor installation
PSM-LWL-GDO-50/125
2799432
1
Measuring device for fiber optic power measurement
PSM-FO-POWERMETER
2799539
1
Type
Order No.
Pcs./Pkt.
PSI-MOS-RS422/FO 1300 E
2708575
1
Other fiber optic converters in the PSI-MOS system
The PSI-MOS-RS422/FO 1300 E is networked for
distances up to 27 km using multi-mode glass fiber cable
and up to 45 km using single mode glass fiber cable.
Other fiber optic converters
Description
Fiber optic converter with integrated optical diagnostics, alarm contact, for
RS-422/RS-485 4-wire and INTERBUS interfaces, termination device with
one fiber optic interface (SC duplex), 1300 nm, for multi-mode and single
mode glass fiber cable
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PSI-MOS-RS422/FO…
3
Technical data
Interfaces
Power supply
24 V DC (18 V DC ... 32 V DC)
Nominal current consumption
130 mA, maximum
Ready-to-operate indicator
"VCC" LED (green)
Maximum star coupler expansion
10
Serial RS-422/RS-485 4-wire interface
According to ITU-T V.11, EIA/TIA-422, DIN 66348-1
Operating mode
Full duplex
Data format/encoding
UART (11 bits, NRZ)
Termination resistors
Receiver 100 Ω, pull-up/pull-down 220 Ω
Transmission speed (automatic detection)
0 kbps ... 2000 kbps (NRZ)
Transmission length
1000 m, maximum (depending on the transmission speed)
Connection
COMBICON connector
Optical interface
Transmission protocol
Transparent protocol to RS-422 interface
Connection method
F-SMA
Wavelength
660 nm
850 nm
Minimum transmission power (fiber type)
-4.6 dBm (980/1000 μm)
-4.6 dBm (200/230 μm)
-16.6 dBm (200/230 μm)
-17.6 dBm (50/125 μm)
B-FOC (ST®)
-13.6 dBm (62.5/125 μm)
Receiver sensitivity
Minimum
Minimum transmission length including 3 dB system reserve
-31.2 dBm
-33.2 dBm
100 m with F-P 980/1000; 230 dB/km 4200 m with F-G 50/125; 2.5 dB/km
800 m with F-K 200/230; 10 dB/km
with quick mounting connectors
4200 m with F-G 62.5/125; 3.0 dB/km
2800 m with F-K 200/230; 8.0 dB/km
General data
Bit distortion input
±35%, maximum
Bit distortion output
< 6.25%
Bit delay
< 1 bit
Electrical isolation
RS-422//power supply
Test voltage
1.5 kVrms, 50 Hz, 1 min.
Alarm output
60 V DC/42 V AC, 1 A, maximum
Status and diagnostic indicators
Power supply (VCC), transmit/receive data RS-422,
fiber optic bar graph (FO SIGNAL), fiber optic error (FO ERR)
Housing material
PA V0, green
Ambient temperature
Operation
-20°C ... +60°C
Storage/transport
-40°C ... +85°C
Humidity
30% ... 95%, no condensation
Dimensions (W x H x D)
35 mm x 105 mm x 99 mm
Degree of protection
IP20
Weight
200 g, approximately
MTBF according to Telcordia standard
Termination devices (E)
T-couplers (T)
660 nm
850 nm
660 nm
850 nm
Ambient temperature 25°C
493 years
320 years
284 years
178 years
Ambient temperature 40°C
92 years
48 years
52 years
26 years
Vibration resistance
5g according to IEC 60068-2-6, 2.5 h each in x, y, and z direction, criterion A
Shock resistance
15g according to IEC 60068-2-27 with 11 ms pulse length, criterion C
Free fall
1 m without packaging according to IEC 60950
Air and creepage distances
DIN EN 60664-1/VDE 0110-1, DIN EN 50178, DIN EN 60950
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PSI-MOS-RS422/FO…
Tests/approvals
c
U
CE
UL/CUL 1604 Ex listed
u
PROCESS CONTROL EQUIPMENT FOR HAZARDOUS
LOCATIONS
31ZN
Ex
X II (2) GD [EX op is] IIC (PTB 06 ATEX 2042 u)
X II 3G Ex nAC IIC T4 X
Fiber optic interface
Device
Conformance with EMC Directive 2004/108/EC and Low Voltage Directive 2006/95/EC
Noise immunity test according to EN 61000-6-21
Electrostatic discharge (ESD)
EN 61000-4-2
Criterion B2
Air discharge
8 kV
Contact discharge
6 kV
Electromagnetic HF field
EN 61000-4-3
Criterion A3
EN 61000-4-4
Criterion B2
10 V/m
Amplitude modulation
Fast transients (burst)
2 kV/5 kHz
Signal
2 kV/5 kHz
Power supply
Surge current load (surge)
EN 61000-4-5
Criterion B2
1 kV/42 Ω
Signal
0.5 kV/2 Ω
Power supply
Conducted interference
EN 61000-4-6
Criterion A3
10 V
Noise emission test according to EN 61000-6-4
Noise emission of housing
EN 550114
Class A5
1
EN 61000 corresponds to IEC 61000
2
Criterion B:
Temporary adverse effects on the operating behavior, which the device corrects automatically.
3
Criterion A:
Normal operating behavior within the specified limits.
4
EN 55011 corresponds to CISPR11
5
Class A:
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Industrial application, without special installation measures.
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PSI-MOS-RS422/FO…
COMBICON
Block diagram
DC
24V (1)
gn
0V (2)
DC
Broken fiber
11 (3)
Alarm
12 (4)
rd
ERR A
TD
Fiber optic port A
RD
Fiber optic diagnostics port A
SHD (5)
220
100
220
Bus management
COMBICON
GND (6)
Function
R(B) (7)
ye
R(A) (8)
gn
Fiber optic diagnostics port B
Broken fiber
T(B) (9)
T(A) (10)
24 V 0 V GND Data Data
A
B
DIN rail connector
Figure 1
TD
*
Fiber optic port B
RD
rd
ERR B
* Only for PSI-MOS.../FO...T
101974a001
Block diagram
Housing dimensions
35
105
PSI-MOS-RS485W2/FO 660T
Ord. No. 27 08 300
99
VCC
TD
RD
RS485
TERM.
ON
FO
SIGNAL
ERR
A
ERR
B
101973A010
Figure 2
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Housing dimensions (in mm)
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PSI-MOS-RS422/FO…
4
Safety regulations and installation notes
4.1
Installation and operation
Follow the installation instructions.
NOTE: Installation, operation, and maintenance
may only be carried out by qualified specialist
personnel.
When installing and operating the device, the applicable
safety directives (including national safety directives),
accident prevention regulations, as well as general
technical regulations, must be observed.
NOTE: The device must not be opened or
modified apart from the configuration of the DIP
switches.
NOTE: The switches that can be accessed may
only be actuated when the power supply to the
device is disconnected.
Do not repair the device yourself, replace it with an
equivalent device. Repairs may only be carried out by the
manufacturer.
NOTE: The IP20 degree of protection
(IEC 60529/EN 60529) of the device is intended
for use in a clean and dry environment. The
device must not be subject to mechanical strain
and/or thermal loads, which exceed the limits
described.
For the safety data, please refer to the operating instructions
and certificates (EC-type examination certificate, other
approvals, if necessary).
4.2
Installation in zone 2
WARNING: Explosion hazard
The device is designed for installation in zone 2
potentially explosive areas.
Observe the specified conditions for use in potentially
explosive areas.
WARNING: Explosion hazard
Install the device in suitable housing with IP54
protection, minimum, that meets the
requirements of EN 60079-15.
Observe the requirements of EN 60079-14.
WARNING: Explosion hazard
Disconnect the block power supply before:
– Snapping it on or disconnecting it.
– Connecting or disconnecting cables.
WARNING: Explosion hazard
Only devices which are designed for operation in
zone 2 potentially explosive areas and are
suitable for the conditions at the installation
location may be connected to the supply and
signal circuits in zone 2.
WARNING: Explosion hazard
The device must be stopped and immediately
removed from the Ex area if it is damaged or was
subject to an impermissible load or stored
incorrectly or if it malfunctions.
Installation in areas with a danger of dust explosions
WARNING: Explosion hazard
The device is not designed for installation in
areas with a danger of dust explosions.
If dust is present, install the device in suitable,
approved housing.
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PSI-MOS-RS422/FO…
5
Supported network structures
The PSI-MOS-RS422/FO… system can be used to create
network topologies that are ideally adapted to the relevant
application. The structures are described briefly below.
5.1
Point-to-point connections
Two PSI-MOS-RS422/FO… E fiber optic termination
devices can be used to easily convert a data link from
copper cable to fiber optics.
If necessary, the point-to-point connection can also be
designed redundantly to increase availability using
PSI-MOS-RS422/FO… T T-couplers.
Redundant point-to-point connection
Point-to-point connection
5.2
Linear structures
Master
PSI-MOS-RS422/FO… devices can be used to network
several RS-422/RS-485 4-wire devices to form a linear
structure.
E
FO
In this case, it must be possible to address all the
termination devices via communication software.
T
PSI-MOS-RS422/FO… E termination devices are used at
the beginning and end of the fiber optic line.
PSI-MOS-RS422/FO… T T-couplers with two fiber optic
ports are used along the line.
The cascadability of the fiber optic devices is limited by the
data rate.
Data rate
Number of
devices
Data rate
T
FO
Slaves:
1 x RS-422
Max. 31 x RS-485 4-wire
Master/Slave line structure
Number of
devices
≤ 115.2 kbps
15
≤ 500 kbps
3
≤ 187.5 kbps
7
≤ 2000 kbps
2
≤ 375 kbps
5
5.3
FO
Slaves:
1 x RS-422
Max. 31 x RS-485 4-wire
Star structures
RS-422/RS-485 4-wire devices can also be networked in a
star structure. Depending on the number of star lines
required, several T-couplers or termination devices are
connected to an active star coupler.
Up to ten PSI-MOS-RS422/FO… devices can be
connected to each star coupler. Cross-wiring for data and
for the supply voltage is provided automatically by the DIN
rail connector (installation accessory, see page 3).
If increased availability is required, redundant star
distributors can also be created using
PSI-MOS-RS422/FO… T T-couplers.
101974_en_04
Star structure
Redundant star structure
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PSI-MOS-RS422/FO…
5.4
Use in INTERBUS networks
PSI-MOS-RS422/FO… converters can also be used to
create INTERBUS networks with fiber optic technology.
For standard INTERBUS connections, the REMOTE IN
and REMOTE OUT interfaces are converted to fiber optics
using one PSI-MOS-RS422/FO… E termination device
each.
Redundant fiber optic connections can also
be implemented for INTERBUS using
PSI-MOS-RS422/FO… T T-couplers.
INTERBUS network
6
Function elements
2
1
5
3
6
7
4
1 2
9
8
P S I-M O S -R S 4 2 2 /F O
O r d .-N o . 2 7 0 8 3 8 4
1 1
1 0
6 6 0 T
V C C
T D
R D
1 3
1 4
F O
1 5
S IG N A L
1 6
E R R
E R R
B
A
1 7
T
D
T
2 0
2 1
2 2
2 3
D
1 8
2 4
1 9
2 5
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Transmit –: T(A)
"VCC" LED
"TD" LED
"RD" LED
"FO SIGNAL" LED (port A)
"FO SIGNAL" LED (port A)
"FO SIGNAL" LED (port A)
"ERR" LED (port A)
Fiber optic transmitter (port A)
Fiber optic receiver (port A)
"FO SIGNAL" LED (port B)1
"FO SIGNAL" LED (port B)1
"FO SIGNAL" LED (port B)1
"ERR" LED (port B)1
Fiber optic transmitter (port B)1
Fiber optic receiver (port B)1
Diagnostic and status indicators
Des.
VCC
Color
Green
Function elements
TD
Yellow
24 V DC supply voltage connection
0 V DC supply voltage connection
Switch contact, connection 11
Switch contact, connection 12
SHD, shield
GND
Receive +: R(B)
Receive –: R(A)
Transmit +: T(B)
RD
Green
Figure 3
1
2
3
4
5
6
7
8
9
Redundant INTERBUS network
101974_en_04
Green
FO SIGNAL Green
Yellow
ERR
1
Red
Meaning
Ready-to-operate
Sending data at the RS-422 copper
interface
Receiving data at the RS-422
copper interface
Very good
Receiving power
Good
at fiber optic port
Critical
A/B
Insufficient,
(see page 10)
broken fiber
Only for PSI-MOS-RS422/FO… T
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PSI-MOS-RS422/FO…
7
Definition of fiber optic diagnostics
The quality of the path is determined using the incoming
optical power Popt and displayed using the LED bar graph.
DIP 2 is used to switch the transmitters in the idle state (rest
period between transmitting data) to steady light (INVERS),
to enable continuous fiber optic diagnostics.
7.1
Point-to-point connections
The COMBICON interface communicates directly with the
fiber optic port. Communication with the DIN rail connector
is disabled.
Fiber optic port
Critical
Red
Error
1
Yellow
0
Popt is considerably greater
than the system reserve
0
Very good
0
Optical power Popt
1
Receive
status
As soon as the system reserve is reached, only the yellow
LED remains lit. At the same time, the signaling relay drops
and the switch contact opens. Data communication is still
possible.
0
Popt is still greater than the
system reserve
Popt has reached the system
reserve
Popt has sapped the system
reserve/broken fiber
COMBICON
T-BUS
103266A007
Figure 4
7.2
Communication between the interfaces for
point-to-point connections, DIP 1 = "OFF"
(LINE)
Star structures
All three interfaces (COMBICON, fiber optic port, and DIN
rail connector) communicate directly with one another.
Fiber optic port
1 0100100110
Good
1
0
1
LED bar
graph
Green
Green
Yellow
Green
Yellow
1 0100100110
If DIP 2 is set to "ON" (NORM), diagnostics are not available
via the LED bar graph.
0101100011 0
Basic method of operation
0
0
0
0
1
1
0
1
0
1
1
1
0
0
0
0
COMBICON
1
1
The PSI-MOS device has a maximum of three interfaces for
the RS-422 signal: the electrical interface (COMBICON
connector), the fiber optic port, and the DIN rail connector
(T-BUS).
T-BUS
103266A008
Figure 5
101974_en_04
Communication between the interfaces for the
star structure, DIP 1 = "ON" (STAR)
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PSI-MOS-RS422/FO…
8
The following tables provide an overview of the DIP switch
functions. By default upon delivery, all DIP switches are in
the "OFF" position.
Configuration
NOTE: Electrostatic discharge
The device contains components that can be
damaged or destroyed by electrostatic discharge.
When handling the device, observe the
necessary safety precautions against
electrostatic discharge (ESD) according to
EN 61340-5-1 and EN 61340-5-2.
•
•
For configuration, release the housing cover using a
screwdriver (A in Figure 6).
Then carefully pull the PCB out of the housing as far as
possible (B).
1
2
NOTE: After changing the device settings,
disconnect the power to the device so that the
settings can be applied.
NOTE: When using T-couplers with an
INTERBUS line with 2 Mbps and activated
redundancy mode (DIP 3 = "ON"), DIP 4 must be
left set to "OFF", as otherwise a bus reset is
triggered.
DIP switch
1
2
3
4
8.1
ON
STAR
NORM
REDUNDANCY
END
OFF
LINE
INVERS
–
NEXT
Operation in a point-to-point connection (DIP 1)
No further settings are required in the default setting.
•
Leave all DIP switches in the "OFF" position.
When using T-couplers, fiber optic port B must be
deactivated.
•
Set DIP 4 to "ON" (END).
1
Figure 6
Opening the housing
DIP switches 1 to 4 are then freely accessible.
• Configure the DIP switches according to the planned
application.
8.2
Operation in a linear structure (DIP 1)
NOTE: Addressable RS-422/RS-485 4-wire
devices and a suitable communication protocol
are required for a linear structure.
Please note that the number of devices that can
be cascaded depends on the transmission speed
(see page 8).
First and last device in the line:
In the default setting, no further settings are required when
two termination devices are used.
•
Leave all DIP switches in the "OFF" position.
When using T-couplers, fiber optic port B must be
deactivated.
•
Set DIP 4 to "ON" (END).
Figure 7
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Setting the DIP switches
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PSI-MOS-RS422/FO…
Devices along the line:
T-couplers must be used along the line.
By default upon delivery, no changes to the setting are
required.
• Leave all DIP switches in the "OFF" position.
8.3
DIP 2
Idle setting
OFF = INVERS Light on1
ON = NORM
Light off
1
The LED bar graph can light up at high
transmission speeds or flash at low transmission
speeds. This display does not correspond to
continuous evaluation of the optical power.
Devices in the star coupler topology
For each device in the star coupler topology,
set DIP 1 to "ON" (STAR).
NOTE: When connecting third-party devices,
observe the receiver sensitivity and overrange of
the fiber optic interfaces.
Devices at the end of a star line
No further settings are required in the default setting.
• Leave all DIP switches in the "OFF" position.
8.4
Operation in an INTERBUS system
No further settings are required in the default setting.
• Leave DIP 1 set to "OFF" (LINE) and DIP 2 set to "OFF"
(INVERS).
When using T-couplers, fiber optic port B must be
deactivated.
• Set DIP 4 to "ON" (END).
8.5
8.6
For mixed operation of PSI-MOS with fiber optic interfaces
from other manufacturers, proceed as follows.
• Check the idle setting for the third-party interface:
Logic 1 = Light off
Logic 1 = Light on
• If necessary, adjust the idle setting of PSI-MOS using
DIP 2.
101974_en_04
Activating the redundancy function (DIP 3)
For increased availability, redundant fiber optic connections
can be created using T-couplers. In this case, the
redundancy function must be activated at the start and end
of the redundant fiber optic connection.
•
To do this, set DIP switch 3 (REDUNDANCY) to "ON".
When the redundancy function is enabled, data
communication takes place via fiber optic port A by default.
In the event that the signal level of the standard cable drops
to a critical level, it automatically switches to port B.
NOTE: Always connect redundant fiber optic
connections from fiber optic port A to port A of the
opposite device or from port B to port B of the
opposite device.
Connection to fiber optic interfaces from
third-party suppliers (DIP 2)
During the idle phase, fiber optic interfaces return to an idle
setting defined by the manufacturer. This idle setting may
vary for different manufacturers and devices. As fiber optic
interfaces can only be operated together if they have the
same idle setting, this should be set using the DIP switches.
Default setting
NOTE: If DIP 2 is set to "ON", fiber optic
diagnostics are not available via the LED bar
graph.
Operation in a star structure (DIP 1)
NOTE: Addressable RS-422/RS-485 4-wire
devices and a suitable communication protocol
are required for a star structure.
•
Meaning
Logic 1
Logic 1
8.7
Disabling the second fiber optic port (DIP 4)
If the second fiber optic port (B) is not used for
PSI-MOS-RS422/FO… T T-couplers, it must be disabled.
Otherwise the red "ERR" LED will light up.
•
Set DIP 4 to "ON" (END).
PHOENIX CONTACT
12
PSI-MOS-RS422/FO…
9
Connection notes
WARNING: Only mount and remove devices
when the power supply is disconnected.
WARNING: PSI-MOS-... devices are designed
for SELV operation according to
IEC 60950/EN 60950/VDE 0805.
•
•
Install the device on a 35 mm DIN rail according to
DIN EN 60715.
To avoid contact resistance only use clean,
corrosion-free DIN rails.
End clamps can be mounted on both sides of the
device to stop the devices from slipping on the DIN rail
(for ordering data, see page 3).
WARNING: Connect the DIN rail to protective
earth ground using a grounding terminal block.
The devices are grounded when they are
snapped onto the DIN rail (installation according
to PELV).
This ensures that the shielding is effective.
Connect protective earth ground with low
impedance.
9.1
•
•
•
•
Combined assembly with a system power
supply unit (modular star coupler)
Connect together the required number of DIN rail
connectors for the connection station. Two DIN rail
connectors are required for each device (see A in
Figure 8). A maximum of ten devices are permitted in a
connection station.
Push the connected DIN rail connectors onto the DIN
rail (B and C).
Place the device onto the DIN rail from above. The
upper holding keyway of the device must be hooked
onto the top edge of the DIN rail (see Figure 8). Make
sure that it is aligned correctly with the DIN rail
connectors.
Once the device has been snapped on properly, check
that it is fixed securely on the DIN rail.
A
B
C
101973A003
Figure 8
101974_en_04
Combined assembly
PHOENIX CONTACT
13
PSI-MOS-RS422/FO…
9.2
Assembly as an individual device in the control
cabinet (stand-alone)
9.3
Assembly in potentially explosive areas
WARNING: Observe the safety notes on page 7.
•
•
•
Place the device onto the DIN rail from above. The
upper holding keyway of the device must be hooked
onto the top edge of the DIN rail (see Figure 9).
Push the device from the front towards the mounting
surface.
Once the device has been snapped on properly, check
that it is fixed securely on the DIN rail.
–
–
9.4
•
Figure 9
Assembly in the control cabinet
•
•
•
101974_en_04
Areas with a danger of gas explosions
The devices are suitable for use in zone 2. Devices that
are installed in zone 1 can be connected to the fiber
optic interface. The fiber optic interface is an associated
item of equipment with protection type "Ex op is".
Areas with a danger of dust explosions
The device is not designed for installation in areas with
a danger of dust explosions.
If dust is present, install the device in suitable, approved
housing.
When installed outside areas with a danger of dust
explosions, devices installed in zone 22 or 21 can also
be connected to the fiber optic interface.
Removal
Pull the locking latch down using a screwdriver,
needle-nose pliers or similar.
Pull the bottom edge of the module away from the
mounting surface.
Pull the module diagonally upwards away from the
DIN rail.
If removing a complete star distributor, remove the
DIN rail connectors from the DIN rail as well.
PHOENIX CONTACT
14
PSI-MOS-RS422/FO…
10
Cabling notes
10.1
Connecting the supply voltage
10.2
WARNING: The device is operated with a +24 V
DC SELV.
0V
NOTE: Use shielded twisted pair data cables.
Connect the cable shielding at both ends of the
transmission path.
Redundant
supply
Individual
supply
24 V
24 V
0V
24 V
0V
SHD GND R(B) R(A)
102964A006
Figure 10
Connecting the data cables/bus termination
T(B) T(A)
Individual/redundant supply
Operation as an individual device
Supply the supply voltage to the module via terminal
blocks 1 (24 V) and 2 (0 V).
103267A018
Figure 11
Shield connection
Operation in a star coupler topology
When the devices are operated in a star coupler topology,
the supply voltage must only be supplied to the first device
in the station. The remaining devices are supplied via the
DIN rail connector. A redundant supply concept can be
created by connecting a second power supply unit to
another device in the topology.
Using the MINI POWER system power supply unit
As an alternative, the star coupler topology can also be
supplied using the MINI-SYS-PS 100-240AC/
24DC/1.5 (Order No. 2866983) or
MINI-PS-100-240AC/24DC/1.5/EX (Order No. 2866653)
system power supply unit. It is connected via two DIN rail
connectors.
Usually the system power supply unit is mounted as the first
device in a topology. A second power supply unit can be
used to create a redundant supply concept.
101974_en_04
•
•
Connect the cable shielding to terminal block 5.
For optimum shield connection, use the supplied shield
connection clamp.
NOTE: The maximum length of the
RS-422/RS-485 cables depends on the
transmission speed. The values listed in the
table must not be exceeded.
Transmission speed
[kbps]
187.5
500
1500
12000
Range [m]
1000
400
200
100
PHOENIX CONTACT
15
PSI-MOS-RS422/FO…
Use in INTERBUS systems
•
•
Use in RS-422/RS-485 4-wire applications
Connect the INTERBUS connection to COMBICON
terminal blocks 6 to 10.
Please note the different pin assignment when
connecting to REMOTE IN and REMOTE OUT.
PSI-MOS-RS422-...
INTERBUS REMOTE OUT
9-pos. D-SUB
COMBICON
R(A)
8
Yellow
1
DO
R(B)
7
Green
6
DO
Gray
2
DI
T(A) 10
T(B)
9
Pink
7
DI
GND
6
Brown
3
GND
5
9
Bridge
Connection to INTERBUS REMOTE OUT
INTERBUS REMOTE IN
9-pos. D-SUB
COMBICON
Connect the data cable to COMBICON terminal blocks
6 to 10.
NOTE: In RS-485 master/slave networks,
either a master device or up to 31 slave devices
may be connected to each PSI-MOS device.
103267A015
PSI-MOS-RS422-...
•
NOTE: When using RS-422 termination
devices, only one device may be connected to
the electrical interface per PSI-MOS device.
5
Figure 12
NOTE: Please note the crossover between
transmit and receive cables.
Master and slave devices must not be mixed in a
common electrical segment.
NOTE: In star coupler stations, always connect
the master device to the data interface of the first
PSI-MOS device. Combined use of the data
interfaces of the other PSI-MOS devices is not
possible.
T(A) 10
Yellow
1
DO
T(B)
9
Green
6
DO
PSI-MOS-RS422-...
R(A)
8
Gray
2
DI
COMBICON
Pink
7
DI
Brown
3
R(B) 7
GND
6
5
9
GND
Bridge
5
103267A016
Figure 13
I/O device
T(B)
9
T(B)/T+
T(A)
10
T(A)/T-
R(B)
7
R(B)/R+
R(A)
8
R(A)/R-
GND
6
GND
Connection to INTERBUS REMOTE IN
5
/SHD
103267A017
Figure 14
101974_en_04
Connection to RS-422/RS-485 4-wire
PHOENIX CONTACT
16
PSI-MOS-RS422/FO…
10.3
Wiring the switch contact
PSI-MOS-RS422/FO… converters are equipped with a
floating switch contact for error diagnostics (connection
terminal blocks 3 and 4 in Figure 3 on page 9). This contact
opens on the affected device if:
– The supply voltage fails
– An interrupt is detected on the fiber optic path
– The system reserve for the fiber optic path is not
reached
The switch contact is an N/C contact and can be connected
to a local digital input, e.g., on the PLC, to support error
detection.
When using a device topology (modular star coupler), the
individual contacts can be connected to separate input
points or the individual contacts can be looped to generate
a group message (Figure 15).
NOTE: The maximum load capacity of the relay
contact is 60 V DC/42 V AC, 1 A.
24 V DC
24 V DC
101973A006
Individual message
Figure 15
101974_en_04
Group message
Individual and group message
PHOENIX CONTACT
17
PSI-MOS-RS422/FO…
10.4
Connecting the fiber optic cables
WARNING: Risk of eye injury
B-FOC (ST®) connection (PSI-MOS-RS422/FO 850 ...)
Standardized B-FOC (ST®) connectors are used with
PSI-MOS-RS422/FO 850 ... devices.
During operation, do not look directly into
transmitter diodes or use visual aids to look into
the glass fibers.
The infrared light is not visible.
2
NOTE: Dust protection caps should only be
removed just before the connectors are
connected. They prevent contamination of the
transmit and receive elements.
The same applies for the protective caps on the
connectors.
NOTE: The following fiber optic lengths must
not be exceeded:
PSI-MOS-RS422/FO 660 ...
–
100 m with F-P 980/1000; 230 dB/km
–
800 m with F-K 200/230; 10 dB/km
PSI-MOS-RS422/FO 850 ...
–
2800 m with F-K 200/230; 8 dB/km
–
4200 m with F-G 50/125; 2.5 dB/km
–
4200 m with F-G 62.5/125; 3.0 dB/km
NOTE: When using fiber optics, observe the fiber
optic installation guidelines,
DB GB IBS SYS FOC ASSEMBLY
(Order No. 9393909).
F-SMA connection (PSI-MOS-RS422/FO 660 ...)
PSI-MOS-RS422/FO 660 ... devices use F-SMA
connectors for the fiber optic connection. F-SMA is a
standardized fiber optic connection.
1
Figure 17
•
•
B-FOC connection
Connect the fiber optic cable to the B-FOC (ST®)
connector for the transmit and receive channel and
push the connector clamp mechanism downwards.
Secure the connection with a quarter turn to the right
(see 2 in Figure 17).
Measuring and connecting devices
Due to the integrated optical diagnostics, there is no need to
measure the path.
NOTE: Note the fiber optic cable signal direction
when coupling two PSI-MOS devices:
Device 1 fiber connection "TD" (transmitter) to
device 2 fiber connection "RD" (receiver)
(Figure 18).
NOTE: Due to different operating wavelengths,
PSI-MOS-RS422/FO 660 ...,
PSI-MOS-RS422/FO 850 ..., and
PSI-MOS-RS422/FO 1300 E
devices should not be connected directly with one
another via fiber optic cables.
2
1
Figure 16
•
F-SMA connection
The connectors are secured on the device by manually
tightening the screw collar (see 2 in Figure 16).
101974_en_04
101973A009
Figure 18
Crossed cables
PHOENIX CONTACT GmbH & Co. KG • 32823 Blomberg • Germany • Phone: +49 - 52 35 - 30 0
PHOENIX CONTACT • P.O.Box 4100 • Harrisburg • PA 17111-0100 • USA • Phone: +717-944-1300
www.phoenixcontact.com
18
