› em4
em4 local
em4 local
› Very compact and easy to program nanoPLC
› Save time in designing your application using
the most intuitive graphical function block
language of the market
› Measure accurately your high end industrial
sensors with the embedded congurable
analog inputs (including 4-20 mA)
› Integrate easily one of our three high tech
designs in your machine
› Adapt your application along the way of its
lifecycle thanks to the enhanced controlling
performances
Specic characteristics
Part number 88 981 102 88 981 103 88 981 104
Type B26
Inputs 16 digital inputs (including 4 High Speed, 8 analog 0-10 V / potentiometers
and 4 analog 0-10 V / 4-20 mA)
Outputs 10 digital outputs (including 2 solid states 0.5 A PWM, 2 relays 6 A and 6 relays 8 A)
Supply 24 VDC
Finish Robust Glossy black Glossy white
On front panel color Black RAL 9011 White RAL 9003
On terminal block color Blue RAL 5017
Protection rating
(in accordance with IEC/EN 60529)
IP 50 on front panel
IP 20 on terminal block
IP 40 on front panel
IP 20 on terminal block
Weight Without packing: 315 g
With packing: 360 g
Without packing: 310 g
With packing: 355 g
Dimensions Without packing:
124.6 x 90 x 62.6 mm /
4.91 x 3.54 x 2.46 inch
With packing:
148 x 103 x 65 mm /
5.83 x 4.06 x 2.56 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
General characteristics
Products certication (in accordance with IEC/EN 60529) CE, cULus Listed
Conformity with the low voltage directive
(in accordance with BT 2006/95/EC)
IEC/EN 61131-2 (Open equipment)
Conformity with the EMC directive
(in accordance with 2004/108/EC)
IEC/EN 61000-6-1 (Residential, commercial and light-industrial environments)
IEC/EN 61000-6-2 (Industrial)
IEC/EN 61000-6-3 (Residential, commercial and light-industrial environments)
IEC/EN 61000-6-4 (Industrial)
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
em4 local - Glossy blackem4 local - Robust em4 local - Glossy white
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Resistance to HF interference
(Immunity)
Immunity to radiated electrostatic elds IEC/EN 61000-4-3, level 3
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
(in accordance with EN 55022/11 group 1)
Class B
Operation temperature -20°C (-4°F) +60°C (140°F) (+40°C (104°F) in a non-ventilated enclosure)
Storage temperature -40°C (-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
Processing characteristics
LCD display Display with 4 lines of 18 characters
Programming method FBD (Function Block Diagram), including SFC (Sequential Function Chart, Grafcet)
Program size Function blocks: typically 1000 blocks
Macro blocks: 64 max. (256 blocks per macro)
Program memory Flash
Removable memory N.A
Data memory 2 k octets
Backup time
(in the event of power failure)
Program and settings in the controller: 10 years
Data memory: 10 years
Data backup Data backup in the ash 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
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-denable correction of drift).
Synchronizable by network
Timer block accuracy 0.5 % +/- 2 cycle time
Start up time on power up < 3 s base alone, < 1.5 s base + 2 expansions + accessory interface
(USB or Modbus RS485)
Self test Test rmware integrity (checksum memory)
Stability of the internal power supply
Check the conformity of the em4 device conguration with the conguration in the
application program.
Supply
Nominal voltage 24 VDC (-15% / +20%)
Operating limits 20.4 - 28.8 VDC
Immunity from micro power cuts y 1 ms (repetition 20 times)
Max. absorbed power 5.3 W
Protection against polarity inversions Yes
Inputs
Digital and high speed digital inputs 24 VDC - 4 inputs from I1 to I4
Input used as digital input
Input voltage 24 VDC (-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 u 15 VDC
Making current at logic state 1 u 1.3 mA
Logic 0 voltage threshold y 10 VDC
Release current at logic state 1 y 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
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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 y 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 )
Cable length y 3 m with shielded twisted cable
Digital 24 VDC and analog inputs 12 bits / 28.8 V - potentiometer - 8 inputs from I5 to IC
Input used as digital input
Input voltage 24 VDC (-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 u 11 VDC
Making current at logic state 1 u 1 mA
Logic 0 voltage threshold y 9 VDC
Release current at logic state 1 y 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 y 100 m
Input used as analog input
Measuring range 0 10 V or 0 V power supply
Input impedance 11.6 kΩ
Maximum value without destruction 28.8 VDC max
Input type Common mode
Resolution 12 bit at maximum input voltage (10.5 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)
+/- 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 %
Isolation between analog channel and power supply None
Protection against polarity inversions Yes
Potentiometer control 2.2 kΩ / 0.5 W (recommended), 10 KΩ max.
Cable length y 10 m with shielded twisted cable (sensor not isolated)
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Digital 24 VDC and analog inputs 12 bits / 10 V & 11 bits / 0-20 mA- potentiometer - 4 inputs from ID to IG
Input used as digital input (power off state)
Input voltage 24 VDC (-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 u 11 VDC
Making current at logic state 1 u 0.8 mA
Logic 0 voltage threshold y 8 VDC
Release current at logic state 1 y 0.5 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 y 100 m
Input used as 0-10 V analog input
Measuring range 0 10 V
Input impedance 13.9 kΩ
Maximum value without destruction 28.8 VDC 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 analog channel and power supply None
Protection against polarity inversions Yes for voltage y 10 V
Potentiometer control 2.2 kΩ / 0.5 W (recommended), 10 KΩ max.
Cable length y 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 analog 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 conguration.
Cable length y 30 m with shielded twisted cable (sensor not isolated)
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Outputs
Digital / PWM solid state output - 2 solid state outputs from O1 to O2
Output used as digital output
Breaking voltage 10 28.8 VDC
Nominal voltage 12 / 24 VDC
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
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
Min. load 1 mA
Galvanic isolation No (*) In the absence of a potential free contact between the output
of the programmable logic controller and the load
Cable length y 10 m
Truth table of the default Command Output Fault
Normal condition 0 0 No
1 1 No
Overheating 0 0 No
1 0 Yes
Underpowered 0 0 X
1 0 X
Short circuit (current limit) 0 0 No
1 0 Yes
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 y 2 % (from 10 % 90 %)
Status indicator On LCD screen
Cable length y 10 m with shielded twisted cable
Distance between the power source and the static outputs y 30 m
6 A relay output - 2 outputs from O3 to O4
Breaking voltage 250 VAC max
Breaking current 6 A
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 VDC 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 VAC 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 = 8 ms max
Release = 4 ms max
Built-in protections Against short-circuits: None
Against over voltages and overload: None
Status indicator On LCD screen
Cable length y 30 m
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8 A relay output - 6 outputs from O5 to OA
Breaking voltage 250 VAC max
Breaking current 8 A, u 55°C: 6 A
Maximum breaking current in the common IEC @ 25°C (77°F): C3, C6: 8 A ; 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 VDC 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 VAC 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 = 8 ms max
Release = 4 ms max
Built-in protections Against short-circuits: None
Against over voltages and overload: None
Status indicator On LCD screen
Cable length y 30 m
Schemes
Dimensions
B26 Robust
99.4
3.91
87.6 / 3.45
124.6 / 4.90
43.2 / 1.70
mm
inch
48.7 / 1.91
62.6 / 2.46
90 / 3.54
108.1 / 4.25
45 / 1.77
B26 Glossy
99.4
3.91
87.6 / 3.45
124.6 / 4.90
43.2 / 1.70
mm
inch
90 / 3.54
108.1 / 4.25
48.7 / 1.91
60.4 / 2.38
45 / 1.77
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Connections
Inputs
PNP
I1 ... IG 0/1
+
-
I1 ... IG
+ 24 VDC
B26
–
+
–
(1)
+–
I1
I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC ID IE IF IG
24V
PNP
BK
BL BN
100 m Max
3937 inches Max
(2)
+
-
I5 ... IC
I5 ... IC U
0 - 30V
0 - 10V
NTC
2K2
12 bits / 28,8V
+ 24 VDC
B26
–
0.5 W
10k max
LDR
+–
I1
I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC ID IE IF IG
30 V, NTC, LDR, R
+
–
(1)
24V
(2)
10 m Max
393.7 inches Max
+
-
ID ... IG
ID ... IG U / I
0 - 10V
2K2
12 bits / 10V
3K3
11 bits
0 - 20 mA
+ 24 VDC
B26
–
0.5 W
10k max
+–
I1
I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC ID IE IF IG
20 mA, 10 V, R
+
–
(1)
24V
(2)
10 m Max
393.7 inches Max
30 m Max
1181 inches Max
20 mA
10 V, R
+
-
I1 ... I4 2604
+ 24 VDC
90°
A
B
Z
A
B
Z
I1
I2
I3
I4
PNP
+
-
B26
CNT 1
–
+–
I1
I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC ID IE IF IG
+
–
(1)
24V
Hz
(2)
3 m Max
118.1 inches Max
I1 ... I4 2604
+
-
+ 24 VDC
CNT 1
CNT 2
A
B
A
B
-
-
+
+
B26
I4
I3
I2
I1
–
+–
I1
I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC ID IE IF IG
+
–
(1)
24V
Hz
(2)
3 m Max
118.1 inches Max
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I1 ... I4 2604
PNP
+
-
I1 ... I4
+ 24 VDC
B26
–
+–
I1
I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC ID IE IF IG
+
–
(1)
24V
BK
BL BN
Hz, s, Rpm
(2)
3 m Max
118.1 inches Max
(1) 1 A (UL248) quick-blowing fuse,
circuit-breaker or circuit protector (US)
(2) Isolating source
Outputs
12 ...24V
U
12 ...24V
O1 & O2
B26
C1
O
n
(3)
30 m Max
1181 inches Max
(1)
–
+
12…24 V
C1 O1 C2 O3 O4 C3 O5 C4 O6 O7 C5 O8 O9 C6 OAOA/O2
+
0.5 A
C1 = 1 A max
10 m Max
393.7 inches Max
–
(1)
12…240V 50/60Hz
UU
O3 ... OA
B26
C
n
O
n
(3)(3)
Protection / Protection / Schutzschaltung / Protección / Protezione
12 ...24V
N–
L+
12…240 V
50 / 60 Hz
or 12…24 V
L / +
L / +
N / –
N / –
C1 O1 C2 O3 O4 C3 O5 C4 O6 O7 C5 O8 O9 C6 OAOA/O2
6A 8A 8A 8A 8A
6 A, 8 A
C2 = 12 A max C3 = 8 A max
C4, C5 = 16 A max C6 = 8 A max
C3 ... C6 : Same polarity
30 m Max
1181 inches Max
(3) Inductive load
I/O installations
+–
I1
I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC ID IE IF IG
C1 O1 C2 O3 O4 C3 O5 C4 O6 O7 C5 O8 O9 C6 OAOA/O2
