| 04/2022
› NANO-PLC
em4 Ethernet & em4 Local
› Up to 46 I/Os - Base 16 DI (4 HighSpeed/ 12 AI ), 8 DO + 2 Solid State Relays
› Analog Inputs 4-20 mA, 0-10 Vc and 0-Vdc 12 bits
› Ethernet Modbus TCP/IP (Client/Server) and Modbus RTU RS485 via interface
(Client/Server)
› Event management & datalog via mail or FTP server
› PLC performance with the shape and ease of use of a logic controller
EM4B26-ET
Base 26 I/O Ethernet
EM4B26
Base 26 I/O Local
Product selection
Type
Part number
EM4B26-ET
88 981 133
EM4B26
88 981 103
Kit Description
Part number
USB interface
88 980 110
USB cable 3m B type
88 980 170
Accesories Description
Part number
Starter Kit em4 Ethernet, Nano-PLC with embedded Ethernet, Ethernet cable, USB key
with programming soft
88 981 136
Starter Kit em4 local, Nano-PLC standalone, USB interface & cable, USB key with
programming soft
88 981 106
KIT em4 Ethernet , Nano-PLC with embedded Ethernet, Crouzet Touch CTP107-E
Performance, Ethernet cable, USB key with Crouzet Touch Soft
88 970 567
KIT em4 Ethernet , Nano-PLC with embedded Ethernet, Crouzet Touch CTP110-E
Performance, Ethernet cable, USB key with Crouzet Touch Soft
88 970 577
EM4B26-ET
EM4B26
Ethernet Modbus TCP/IP (Client///Server)
Yes (16 IP range /// 24 words + 16 bits)
-
Modbus RTU (Client///Server)
Yes via interface (16 IP range /// 24 words + 16 bits)
Datalog via mail or FTP
Yes (24 data channel; 68 000 recordings)
-
Event mangement via mail
Yes (24 events)
-
Bluetooth
Yes via interface
General features
Specific characteristics
Part number
88 981 133
Finish
Glossy black
On front panel color
Black RAL 9011
On terminal block color
Blue RAL 5017
Protection rating
IP 40 on front panel
(in accordance with IEC/EN 60529)
IP 20 on terminal block
Weight
Without packing: 345 g
Without packing: 310 g
With packing: 395 g
With packing: 355 g
Without packing: 124.6 x 90 x 60.6 mm / 4.91 x
3.54 x 2.38 inch
Without packing: 124.6 x 90 x 60.4 mm / 4.91 x
3.54 x 2.38 inch
With packing: 148 x 103 x 65 mm / 5.83 x 4.06 x
2.56 inch
With packing: 148 x 103 x 65 mm / 5.83 x 4.06 x
2.56 inch
Dimensions
88 981 103
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| NANO-PLC
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EM4B26-ET
EM4B26
Programming / exploitation
Via USB, Bluetooth, Ethernet / Via Bluetooth,
Ethernet
Via USB, Bluetooth / Via Bluetooth
Ethernet connection
Type RJ45, 10/100 Mbit/s, MDI/MDIX
-
Adressage
Static or dynamic (DHCP server / Auto IP)
-
Protocols
Modbus TCP (client / server), Discovery,
UDP, TCP, FTP, SMTP (SSL/TLS), Workshop
communication via Ethernet (SSL/TLS)
-
Cable length
Maximun length between 2 devices: 100 m /
3937 inch
-
Ethernet earthing
Yes, refer to the quick reference guide supplied
with the product
-
General characteristics
Products certification
CE, cULus Listed
Conformity with the low voltage directive
IEC/EN 61131-2 (Open equipment)
(in accordance with 2014/35/EU)
Conformity with the EMC directive
IEC/EN 61000-6-1 (Residential, commercial and light-industrial environments)
(in accordance with 2014/30/EU)
IEC/EN 61000-6-2 (Industrial)
IEC/EN 61000-6-3 (Residential, commercial and light-industrial environments)
IEC/EN 61000-6-4 (Industrial)
Power supply earthing
None
Overvoltage category
3 in accordance with IEC/EN 60664-1
Pollution
Degree: 2 in accordance with IEC/EN 61131-2
Maximum utilization altitude
Operation: 2000 m
Transport: 3000 m
Mechanical resistance
Immunity to vibrations IEC/EN 60068-2-6, Fc test
Immunity to shock IEC/EN 60068-2-27, Ea test
Resistance to electrostatic discharge
Immunity to ESD IEC/EN 61000-4-2, level 3
Resistance to HF interference
Immunity to radiated electrostatic fields IEC/EN 61000-4-3, level 3
(Immunity)
Immunity to fast transients (burst immunity) IEC/EN 61000-4-4, level 3
Immunity to shock waves IEC/EN 61000-4-5
Radio frequency in common mode IEC/EN 61000-4-6, level 3
Conducted and radiated emissions
Class B
(in accordance with EN 55022/11 group 1)
Operation temperature
-20 (-4 °F) → +60 °C (140 °F) (+40 °C (104 °F) in a non-ventilated enclosure)
Storage temperature
-40 (-40 °F) → +80 °C (176 °F)
Relative humidity
95% max. (no condensation or dripping water)
Screw terminals connection capacity
Flexible wire with ferrule: 1 conductor: 0.2 to 2.5 mm2 (AWG 24-14)
Flexible wire with ferrule: 2 conductors: 0.2 to 0.75 mm2 (AWG 24-18)
Rigid wire: 1 conductor: 0.2 to 2.5 mm2 (AWG 24-14)
Rigid wire: 2 conductors: 0.2 to 0.75 mm2 (AWG 24-18)
Tightening torque: 0.5 N.m (4.5 lb-in) (tighten using screwdriver diam. 3.5 mm)
Stripping length: 6 mm
Material
Lexan, UL94V0
Environnement
Reach, RoHS, Halogen free 1272/2008/CE
Processing characteristics
LCD display
Display with 4 lines of 18 characters, white characters on a black background, reverse display
function
Programming method
FBD (Function Block Diagram), including SFC (Sequential Function Chart) (Grafcet)
Program size
Function blocks: typically 1000 blocks
Macro blocks: 127 max. (255 blocks per macro)
Program memory
Flash
Removable memory
N.A
Data memory
2 k octets
Back-up time
Program and settings in the controller: 10 years
(in the event of power failure)
Data memory: 10 years
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EM4B26-ET
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EM4B26
Data back-up
Data backup in the flash memory is guaranteed if the product is powered on more than 10 seconds
Cycle time
From 2 ms* to 90 ms, default value: 10 ms
From 2 ms to 90 ms, default value: 10 ms
*: Depending on configuration
Clock data retention
10 years (lithium battery) at 25 °C (77 °F)
Clock drift
Drift < 12 min/year (at 25 °C (77 °F))
6 s / month (at 25 °C (77 °F) with user-definable correction of drift).
Synchronizable by network
Timer block accuracy
0.5 % ± 2 cycle time
Start up time on power up
< 10 s base alone, < 5 s base + 2 expansions +
1 accessory (RS485)
Self test
Test firmware integrity (checksum memory)
< 3 s base alone, < 1.5 s base + 2 expansions +
1 accessory (USB, RS485…)
Stability of the internal power supply
Check the conformity of the em4 device configuration with the configuration in the application
program.
Supply
Nominal voltage
24 Vc (-15% / +20%)
Operating limits
20.4 - 28.8 Vc
Immunity from micro power cuts
≤ 1 ms (repetition 20 times)
Max. absorbed power
5W @ 24 Vc, 6.5 W @ 28.8 Vc, - 0.3 W
backlight OFF
4W @ 24 Vc, 5.3 W @ 28.8 V, - 0.3 W
backlight OFF
1.5W @ 24 Vc (I/O + backlight) = 0
Protection against polarity inversions
Yes
Power monitoring
Yes and value available through the application "FB Status", 1/10V, 5%.
Inputs
Digital and high speed digital inputs 24 Vc - 4 inputs from I1 to I4
Input used as digital input
-
Input voltage
24 Vc (-15% / +20%)
Input current
1.8 mA @ 20.4 V
2.1 mA @ 24 V
2.5 mA @ 28.8 V
Input impedance
11.6 kΩ
Logic 1 voltage threshold
≥ 15 Vc
Making current at logic state 1
≥ 1.3 mA
Logic 0 voltage threshold
≤ 10 Vc
Release current at logic state 0
≤ 0.8 mA
Response time
1 to 2 cycle times
Sensor type
Contact or 3-wire PNP
Conforming to IEC/EN 61131-2
Type 1
Input type
Resistive
Isolation between power supply and inputs
None
Isolation between inputs
None
Protection against polarity inversions
Yes
Status indicator
On LCD screen
Cable length
≤ 100 m
Input used as high speed digital input
Maximum counting frequency
3 channels encoder (I1, I2, I3): 20 kHz*
2 independent counters (I1, I2) (I3, I4) (Cumul, IND, DIR): 2 channels: 40 kHz*, 4 channels:
20 kHz*,
2 independent counters (I1, I2) (I3, I4) (PH, PH2): 2/4 channels: 20 kHz*
4 independent counters (I1, I2, I3, I4) (Up/Down): 1 channel: 60 kHz*, 2 channels: 40 kHz*, >
2 channels: 20 kHz*
* with a time cycle ≤ 10 ms and a ton / toff = 50% ± 5%, level 0 < 2V and level 1 > 20.4V
Other functions
4 chronometers (I1, I2, I3, I4 )
4 tachometers (I1, I2, I3, I4 )
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EM4B26-ET
Cable length
| 04/2022
EM4B26
≤ 3 m with shielded twisted cable
Digital 24 Vc and analog inputs 12 bits / 28.8 V - potentiometer - 8 inputs from I5 to IC
Input used as digital input
Input voltage
24 Vc (-15% / +20%)
Input current
1.8 mA @ 20.4 V
2.1 mA @ 24 V
2.5 mA @ 28.8 V
Input impedance
11.6 kΩ
Logic 1 voltage threshold
≥ 11 Vc
Making current at logic state 1
≥ 1 mA
Logic 0 voltage threshold
≤ 9 Vc
Release current at logic state 0
≤ 0.7 mA
Response time
1 to 2 cycle times
Sensor type
Contact or 3-wire PNP
Conforming to IEC/EN 61131-2
Type 1
Input type
Resistive
Isolation between power supply and inputs
None
Isolation between inputs
None
Protection against polarity inversions
Yes
Status indicator
On LCD screen
Cable length
≤ 100 m
Input used as analog input
Measuring range
0 → 10 V, 0 → V power supply or Voltmeter
Input impedance
11.6 kΩ
Maximum value without destruction
28.8 Vc max
Input type
Common mode
Resolution
12 bit at maximum input voltage (10 bit at 10V)
Value of LSB
7.03 mV
Conversion time
Controller cycle time
Maximum error in 0-10V mode
± 1.1 % of full scale at 25 °C (77 °F)
0 → 10 V or 0 → V power supply
12 bit at maximum input voltage (10.5 bit at
10V)
± 1.6 % of full scale at 55 °C (131 °F)
Maximum error in 0-V power supply mode
± 2 % of full scale at 25 °C (77 °F)
± 3 % of full scale at 55 °C (131 °F)
Repeat accuracy at 55 °C (131 °F)
± 0.5 %
Voltmeter
from 0 to 30.5 V, 5%
Isolation between analogue channel and
power supply
None
Protection against polarity inversions
Yes
Potentiometer control
2.2 kΩ / 0.5 W (recommended), 10 KΩ max.
Cable length
≤ 10 m with shielded twisted cable (sensor not isolated)
Digital 24 Vc and analog inputs 12 bits / 10 V & 11 bits / 0-20 mA - 4 inputs from ID to IG
Input used as digital input (power off state)
Input voltage
24 Vc (-15% / +20%)
Input current
1.5 mA @ 20.4 V
1.7 mA @ 24 V
2.1 mA @ 28.8 V
Input impedance
13.9 kΩ
Logic 1 voltage threshold
≥ 11 Vc
Making current at logic state 1
≥ 0.8 mA
Logic 0 voltage threshold
≤ 8 Vc
Release current at logic state 0
≤ 0.5 mA
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EM4B26-ET
Response time
1 to 2 cycle times
Sensor type
Contact or 3-wire PNP
Conforming to IEC/EN 61131-2
Type 1
Input type
Resistive
Isolation between power supply and inputs
None
Isolation between inputs
None
Protection against polarity inversions
No
Status indicator
On LCD screen
Cable length
≤ 100 m
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EM4B26
Input used as 0-10 V analog input
Measuring range
0 → 10 V
Input impedance
13.9 kΩ
Maximum value without destruction
28.8 Vc max
Input type
Common mode
Resolution
12 bit / 10V
Value of LSB
2.45 mV
Conversion time
Controller cycle time
Maximum error at 25 °C (77 °F)
± 0.8 % of full scale
Maximum error at 55 °C (131 °F)
± 1.2 % of full scale
Repeat accuracy at 55 °C (131 °F)
± 0.5 %
Isolation between analogue channel and
power supply
None
Protection against polarity inversions
Yes for voltage ≤ 10 V
Potentiometer control
2.2 kΩ / 0.5 W (recommended), 10 KΩ max.
Cable length
≤ 10 m with shielded twisted cable (sensor not isolated)
Input used as 0-20 mA analog input
Measuring range
0 → 20 mA (4 → 20 mA by the application)
Input impedance
245 Ω
Maximum value without destruction
30 mA max
Input type
Common mode
Resolution
11 bit (normalized at 0 - 2000) / 20 mA
Value of LSB
10 µA
Conversion time
Controller cycle time
Maximum error at 25 °C (77 °F)
± 1.2 % of full scale
Maximum error at 55 °C (131 °F)
± 1.7 % of full scale
Repeat accuracy at 55 °C (131 °F)
± 0.5 %
Isolation between analogue channel and
power supply
None
Protection against polarity inversions
Yes
Overvoltage protection
Yes
If the input voltage is > 7 V, this one is automatically switched on 0-10V configuration.
Cable length
≤ 30 m with shielded twisted cable (sensor not isolated)
Outputs
Digital / PWM solid state output - 2 solid state outputs from O1 to O2
Output used as digital output
Breaking voltage
10 → 28.8 Vc
Nominal voltage
12 / 24 Vc
Nominal current
0.5 A on resistive load @ 25 °C (77 °F)
Max. breaking current
0.625 A
Non repetitive overload current
1 A
Maximum breaking current in the common
1 A
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EM4B26-ET
EM4B26
Voltage drop
< 1 V for I = 0.5 A
Response time
Make = 1 cycle time + 30 µs typical
Release = 1 cycle time + 40 µs typical
Built-in protections
Against overloads and short-circuits: Yes
Against over voltages (*): Yes
Against inversions of power supply: Yes
(*) In the absence of a volt-free contact between the output of the logic controller and the load
Min. load
1 mA
Galvanic isolation
No
Cable length
≤ 10 m
Truth table of the default
Command
Normal condition
0
Underpowered
Short circuit (current limit)
1
0
No
0
No
0
Yes
0
0
X
0
1
0
0
X
0
No
Output used as PWM output
PWM frequency
14.11 Hz; 56.45 Hz; 112.90 Hz; 225.80 Hz; 451.59 Hz; 1758.24 Hz
PWM cyclic ratio
0 → 100 % 100 steps
PWM Max. error
≤ 2 % (from 10 % → 90 %)
Status indicator
On LCD screen
Cable length
≤ 10 m with shielded twisted cable
Distance between the power source and the
static outputs
≤ 30 m
6 A relay output - 2 outputs from O3 to O4
Breaking voltage
250 Va max
Breaking current
6 A
6A
Derating: UL: ≥ 45 °C (113 °F): 4A max
Maximum breaking current in the common
IEC @ 25 °C (77 °F): 12 A
IEC @ 60 °C (140 °F) or UL: 10 A
Mechanical life
5 000 000 operations (cycles)
Electrical durability for 50 000 operating
cycles
24 Vc tau = 0 ms: 6 A, tau = 7 ms: 3 A, tau = 15 ms: 1.8 A
Usage category DC-12: 24 V, 6 A
Usage category DC-14: 24 V, 1.8 A
250 Va cos phi = 1: 6 A, cos phi = 0.7: 5 A, cos phi = 0.4: 2.5 A
Usage category AC-12: 250 V, 6 A
Usage category AC-13: 250 V, 5 A
Usage category AC-15: 250 V, 2 A
Minimum switching capacity
100 mA (at minimum voltage of 12V)
Maximum operating rate
Off load: 10 Hz
At operating current: 0.1 Hz
Voltage for withstanding shocks
In accordance with IEC/EN 60947-1 and IEC/EN 60664-1: 4 kV
Response time
Make = 1 cycle time + 8 ms typical
Release = 1 cycle time + 4 ms typical
Built-in protections
Against short-circuits: None
Against over voltages and overload: None
Status indicator
On LCD screen
Cable length
≤ 30 m
No
1
1
Fault
0
1
Overheating
Output
Yes
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EM4B26-ET
EM4B26
8 A relay output - 6 outputs from O5 to OA
Breaking voltage
250 Va max
Breaking current
8 A
8 A, ≥ 55 °C: 6 A
Derating: CEI ≥ 55 °C (131 °F) or UL: ≥ 45 °C
(113 °F): 6A max
Maximum breaking current in the common
IEC @ 25 °C (77 °F): C3, C6: 8A; C4, C5: 16 A
IEC @ 60 °C (140 °F) or UL: C3, C6: 8 A; C4, C5: 10 A
Mechanical life
20 000 000 operations (cycles)
Electrical durability for 50 000 operating
cycles
24 Vc tau = 0 ms: 8 A, tau = 7 ms: 3 A, tau = 15 ms: 1.5 A
Usage category DC-12: 24 V, 8 A
Usage category DC-14: 24 V, 1.5 A
250 Va cos phi = 1: 8 A, cos phi = 0.7: 4.75 A, cos phi = 0.4: 3 A
Usage category AC-12: 250 V, 8 A
Usage category AC-13: 250 V, 4.3 A
Usage category AC-15: 250 V, 1.5 A
Minimum switching capacity
100 mA (at minimum voltage of 12V)
Maximum operating rate
Off load: 10 Hz
At operating current: 0.1 Hz
Voltage for withstanding shocks
In accordance with IEC/EN 60947-1 and IEC/EN 60664-1: 4 kV
Response time
Make = 1 cycle time + 10 ms typical
Release = 1 cycle time + 5 ms typical
Built-in protections
Against short-circuits: None
Against over voltages and overload: None
Status indicator
On LCD screen
Cable length
≤ 30 m
Schemes
Dimensions
Ethernet
124,6 / 4.90
87,6 / 3.45
43,2 / 1.70
mm
inch
9 9 ,4
3 .9 1
108,1 / 4.25
16,6
0.65
60,6 / 2.38
48,7 / 1.91
45 / 1.77
43,2 / 1.70
90 / 3.54
124,6 / 4.90
87,6 / 3.45
16,6
0.65
Local
45 / 1.77
99,4
3.91
90 / 3.54
mm
inch
108,1 / 4.25
48,7 / 1.91
60,6 / 2.38
Connections
INPUTS
I1 ... IG 0/1
+ 24 VDC
PNP
+
BL
I1 ... IG
(2)
24V
PNP
–
B26
BN
BK
+ (1)
–
+ –
I1 I2 I3 I4 I5 I6 I7 I8
I9 IA IB IC ID IE IF IG
100 m Max
3937 inches Max
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30 V, NTC, LDR, R
I5 ... IC U
+ 24 VDC
LDR
NTC
+
2K2
0 - 28,8V
0 - 10V
+ (1)
(2)
I5 ... IC
0.5 W
10k max
24V
12 bits / 28,8V
–
+ –
B26
-
I1 I2 I3 I4 I5 I6 I7 I8
10 m Max
393.7 inches Max
I9 IA IB IC ID IE IF IG
–
ID ... IG U / I
20 mA, 10 V, R
+ 24 VDC
3K3
+
2K2
11 bits
0 - 20 mA
12 bits / 10V
0 - 10V
+ (1)
(2)
ID ... IG
0.5 W
10k max
20 mA
30 m Max
1181 inches Max
24V
–
+ –
B26
-
I1 I2 I3 I4 I5 I6 I7 I8
10 V, R
10 m Max
393.7 inches Max
I9 IA IB IC ID IE IF IG
–
I1 ... I4
Hz
2604
+ 24 VDC
A
B
Z
A
+
+
I1
I2
I3
24V
B
–
3 m Max
118.1 inches Max
I4
90°
Z
+ (1)
(2)
CNT 1
-
PNP
+ –
B26
-
I1 I2 I3 I4 I5 I6 I7 I8
I9 IA IB IC ID IE IF IG
–
I1 ... I4
Hz
2604
+ 24 VDC
+
B
CNT 1
+
I3
I4
A
B
+
I1
I2
A
CNT 2
-
24V
(2)
+ (1)
–
+ –
B26
-
I1 I2 I3 I4 I5 I6 I7 I8
3 m Max
118.1 inches Max
I9 IA IB IC ID IE IF IG
–
I1 ... I4
2604
Hz, s, Rpm
+ 24 VDC
BN
BL
BK
+
(2)
I1 ... I4
24V
+ (1)
–
PNP
+ –
B26
-
I1 I2 I3 I4 I5 I6 I7 I8
3 m Max
118.1 inches Max
I9 IA IB IC ID IE IF IG
–
(1)
1 A (UL248) quick-blowing fuse, circuit-breaker or circuit protector (US)
(2)
Isolating source
OUTPUTS
O1 & O2
24V
24VDC
+
+
(2) +
0,5 A
(1)
–
+ –
30 m Max
1181 inches Max
(1)
C1
C1 O1 O2
On
B26
C2 O3 O4
C3 O5
C4 O6 O7
C5 O8 O9
C6 OAOA/
10 m Max
393.7 inches Max
(3)
12…24 V
U
–
–
12 ...24V
(2) +
(1)
–
C1 = 1 A max
6 A, 8 A
O3 ... OA
12…240V 50/60Hz
12 ...24V
L
+
C1 O1 O2
Cn
6A
8A
8A
8A
C2 O3 O4
C3 O5
C4 O6 O7
C5 O8 O9
On
B26
(3)
(3)
or
U
U
N
–
Protection / Protection / Schutzschaltung / Protección / Protezione
(3)
I1
12 ...24V
Inductive load
12…240 V
50 / 60 Hz
12…24 V
L/+
N/–
L/+
N/–
C2 = 12 A max
C4, C5 = 16 A max
C3 = 8 A max
C6 = 8 A max
8A
C6 OAOA/
30 m Max
1181 inches Max
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I/O Installations
+ –
C1 O1 O2
I1 I2 I3 I4 I5 I6 I7 I8
C2 O3 O4
C3 O5
I9 IA IB IC ID IE IF IG
C4 O6 O7
C5 O8 O9
C6 OAOA/
Warning:
The product information contained in this catalogue is given purely as information and does not constitute a representation, warranty or any form of contractual commitment. Crouzet and its subsidiaries reserve the right to
modify their products without notice. It is imperative that we should be consulted over any particular use or application of our products and it is the responsibility of the buyer to establish, particularly through all the appropriate
tests, that the product is suitable for the use or application. Under no circumstances will our warranty apply, nor shall we be held responsible for any application (such as any modification, addition, deletion, use in conjunction
with other electrical or electronic components, circuits or assemblies, or any other unsuitable material or substance) which has not been expressly agreed by us prior to the sale of our products.
