CIO21A input/output card

Terminal

Contact

Function

S50/1 on: Current input active for AI2x

S50/2 on: Current input active for AI3x

S50/1 offDelivery state.: Voltage input active for AI2x

S50/2 off1): Voltage input active for AI3x

X50:1

REF1

+10 V DC reference voltage output

X50:2

AI21

Analog current or voltage input

X50:3

AI22

Analog current or voltage input, reference for AI21

X50:4

GND

Reference potential

X50:5

AI31

Analog current or voltage input

X50:6

AI32

Analog current or voltage input, reference for AI31

X50:7

GND

Reference potential

X50:8

REF2

-10 V DC reference voltage output

X51:1

AOV2

Analog voltage output, freely programmable

X51:2

AOC2

Analog current output, freely programmable

X51:3

GND

Reference potential for outputs AOV2 and AOC2

X51:4

AOV3

Analog voltage output, freely programmable

X51:5

AOC3

Analog current output, freely programmable

X51:6

GND

Reference potential for outputs AOV3 and AOC3

X52:1

DI10

Digital input 1, freely programmable

X52:2

DI11

Digital input 2, freely programmable

X52:3

DI12

Digital input 3, freely programmable

X52:4

DI13

Digital input 4, freely programmable

X52:5

GND

Reference potential for digital inputs DI10 – DI13

X52:6

DO10

Digital output 1, freely programmable

X52:7

DO11

Digital output 2, freely programmable

X52:8

DO12

Digital output 3, freely programmable

X52:9

DO13

Digital output 4, freely programmable

X52:10

GND

Reference potential for digital outputs DO10 – DO13