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4.6 Connections
4.6.1 PLC I/O signals
NOTICE
+24 VDC supply voltage
Only connect devices that are designed for this supply voltage.
The PLC control signals (inputs and outputs) are provided on the DIGIFORCE
®
9311 at the 25 pin D-SUB
port. The signals are isolated from the controller core and work with positive logic. An external 24 VDC
supply is needed to operate the PLC outputs; the DIGIFORCE
®
9311 does not provide an auxiliary
voltage.
The PLC outputs of the DIGIFORCE
®
9311 use sourcing logic (p-switching).
Diagram 7: PLC output
Pin assignment for the 25 pin D-SUB socket (female)
Diagram 8: 25 pin D-SUB socket (female)
Summary of Contents for DIGIFORCE 9311
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