Data Sheet

Signal description
Signal Name Description
INT-S Internal signal Internal connection to the micro controller, can be used as GPIO
(BI, PI, BO, PO modules) or PWM (AO modules). If supported by
the micro controller, also analogue signals (ADC or DAC) (AI, AO
modules) or 1-wire serial interface (AI modules), for micro
controllers that do not have ADC functions.
INT+ Internal positive supply Internal power supply of the micro controller, e.g. 3.3 V or 5 V
INT - Internal negative supply Ground of the internal supply circuit
EXT - External negative supply Ground of the external supply circuit
EXT+ External positive supply External power supply, mostly 24 V DC
EXT-S External signal External signal. This is where the external signals like switching
signals, switched loads, temperature sensors, analogue sensors or
analogue control inputs are connected.
Dimensions
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