Type ME44

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3.

Device/Process connections

3.1. Electrical assignment and circuit diagram for 4AI module

AUX-Power is used for the power supply of the AI channels. A second AUX-Power connection can be used to supply another

module.

GND

GND

24 V

24 V

GND

AI1

24 V

GND

AI2

24 V

GND

AI3

24 V

GND

AI4

24 V

4AI

GND

GND

24 V

24 V

GND

AI1

24 V

GND

AI2

24 V

GND

AI3

24 V

GND

AI4

24 V

4AI

Pin assignment for AUX

Power

Outer circuitry

GND

Ground

GND

Ground

24 V

AUX power supply voltage 24 V

± 10 %

24 V

AUX power supply voltage 24 V

± 10 %

GND

GND

24 V

24 V

GND

AI1

24 V

GND

AI2

24 V

GND

AI3

24 V

GND

AI4

24 V

4AI

Pin assignment for ana-

logue inputs

Outer circuitry

GND

Ground

AI1-AI4

Analogue input+

24 V

Supply voltage Output 24 V

Circuit diagram:

GND

AI x

24 V

2-wire

3-wire

GND

AI x

24 V

2-wire

3-wire

Internally powered (sensor is supplied via this module)

Externally powered (sensor is not supplied via module, but from another source)

3.2. Electrical assignment and circuit diagram for 4AO module

GND

AO1

GND

AO2

GND

AO3

GND

AO4

4AO

GND

AO1

GND

AO2

GND

AO3

GND

AO4

4AO

Pin assignment for ana-

logue inputs

Outer circuitry

GND

Ground

AO1-AO4

Analogue output+

Circuit diagram:

GND

AO x