16 universal inputs / outputs U1...U8 and X1…X8 with the following output functions (10-bit DA converter):

Voltage output, analog


Range (over range)


Output current

AO 0-10 V

0...10 V (-0.05…10.6 V)

1 mV

Max. 1 mA

AO 0-10 V standard


0% = 0 V, 100% = 10 V
(-0.05...10.6 V)

0.01 %

Max. 1 mA

Current output, analog (only outputs X5…X8) *)


Range (over range)



AO 4-20 mA

4...20 mA (3.92…20.96 mA)

1 µA

0…500 Ω

Output to drive off-board relay (only outputs X1…X4) *)

Output voltage

DC 0 V or 24 V

Load resistance

Min. 1000 Ω

Load current

Max. 24 mA

*) In total 4 outputs can be configured as current outputs or to drive off-board relays (e.g. 3 current outputs on X5-X8 and 1 output to drive an off-board relay on X1-X4).

Relay output (outputs DO1...DO6)

External supply line fusing

Non-renewable fuse
Circuit breakers


Max. 10 A, slow
Max. 13 A, characteristic B, C, D as per EN 60898

Switching voltage AC/DC

Max. AC 250 V / DC 30 V
Min. AC/DC 12 V

Current load AC

NO contact: Max. 4 A resistive, 3 A inductive (cos phi 0.6)
NC contact: max. 2 A resistive, 1.5 A inductive (cos phi 0.6)
Min. 1 mA at AC 250 V
Min. 10 mA at AC 12 V

Current on make AC

NO contact: Max. 10 A (1 s)

NC contact: Max. 3 A (1 s)

Current load DC

NO contact: Max. 3 A resistive at DC 30 V
NC contact: Max. 1 A resistive at DC 30 V
Min. 10 mA resistive at DC 12 V

Response / release time

7 ms / 3 ms typical

Contact life at AC 250 V (reference values)

At 0.3 A resistive
NO contact at 3 A resistive
NC contact at 2 A resistive

Reduction factor for inductive load (cos phi = 0.6)


5 x 105 switching cycles
1 x 105 switching cycles
1 x 105 switching cycles


Insulating strength between relay contacts and system electronics (reinforced insulation).

AC 3750 V, as per EN 60730-1

No overvoltage protection is used when switching inductive loads

Risk of heavy electromagnetic disturbances and lower contact life when no overvoltage protection is used when switching inductive loads.

  1. When switching inductive loads (e.g. contactors or electric motors) it is strongly recommended to use suitable overvoltage protection devices to avoid heavy electromagnetic disturbances and to ensure the specified contact life.