Range of product

Modicon M238 logic controller 

Product or component type

Input/output analog module 

Analogue input number

4 

Analogue input type

Current 4...20 mA , non differential 
Voltage 0...10 V , non differential 

Analogue output number

2 

Analogue output type

Current 4...20 mA 
Voltage 0...10 V 

Cross talk

<= 2 LSB 

Range compatibility

Advantys OTB 
Twido 

Input level

High level 

Analogue input resolution

12 bits 

Analogue output resolution

12 bits 

LSB value

2.5 mV , voltage 
2.5 mV , voltage 
4 µA , current 
4 µA , current 

Permissible continuous overload

13 V , voltage 
40 mA , current 

Input impedance

≤ 250 MOhm (current) 
≥ 1 Ohm (voltage) 

Load type

Resistive 

Load impedance ohmic

≤ 300 Ohm (current) 
≥ 2000 Ohm (voltage) 

Stabilisation time

20 ms 

Conversion time

20 ms + 1 controller cycle time 

Sampling duration

≤ 16 ms 

Acquisition period

16 ms per channel + 1 controller cycle time 

Measurement error

+/- 0.5 % of full scale , 0...10 V 25 °C 
+/- 0.5 % of full scale , 4...20 mA 25 °C 
+/- 0.9 % of full scale , 0...10 V 25 °C 
+/- 0.9 % of full scale , 4...20 mA 25 °C 

Temperature coefficient

+/-0.015 %FS/°C , 0...10 V 
+/-0.015 %FS/°C , 4...20 mA 
+/- 0.02 %FS/°C , 0...10 V 
+/- 0.02 %FS/°C , 4...20 mA 

Repeat accuracy

+/-0.5 %FS input 
+/- 1 %FS output 

Non-linearity

+/- 0.4 %FS , voltage 
+/- 0.4 %FS , current 
+/- 0.5 %FS , voltage 
+/- 0.5 %FS , current 

Output error

+/- 1 %FS 

Output ripple

<= 1 LSB 

Total error

+/-1 %FS , voltage 
+/-1 %FS , current 
+/- 1.5 %FS , voltage 
+/- 1.5 %FS , current 

Type of cable

Shielded cable 

Insulation between channel and internal logic

Photocoupler 

Supply

External supply 

[Us] rated supply voltage

24 V DC 

Supply voltage limits

19,2...30 V 

Electrical connection

1 removable screw terminal block 

Current consumption

60 mA 5 V DC (internal) 
80 mA 24 V DC (external) 

Product weight

0,085 kg 

Dielectric strength

800 V between I/O channel 
800 V between the I/O and internal logic 
1500 V between the I/O and the external supply circuit 

RoHS EUR conformity date

0910 

RoHS EUR status

Compliant