IFM Electronic AT-interface AC2516 Notice De Montage page 13

Connection of a 3-wire sensor without own supply
Pin 1: sensor supply +24 V
Pin 2: AI+ analogue input
Pin 3: sensor supply 0 V
Pin 4: AI- analogue input 0 V
Pin 5: functional earth
Connection of a 4-wire sensor without own supply
Pin 1: sensor supply +24 V
Pin 2: AI+ analogue input
Pin 3: sensor supply 0 V
Pin 4: AI- analogue input 0 V
Pin 5: functional earth
When a 4-wire sensor is connected the internal link between pin
3 and pin 4 must be deactivated by resetting the parameter bit
P0.
analogue in
current
U+
analogue in
analogue -
U-
U+
U-
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