Chapter 5 digital io, 1 plc installation – INFICON SID-142 Thin Film Deposition Controller User Manual
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Chapter 5
Digital IO
5-2
5.1 PLC Installation
Mount the PLC controller near the devices it is controlling and sensing. Connect the
PLC to a properly grounded power source. Connect a serial cable from the PLC serial
port to a computer serial port. See the PLC User Manual for detailed mounting and
connection information.
Output Wiring: The 10CH relays on Omron PLCs correspond to Relay# 1 to 8 in the
SQS-142 software. These physical relays are mapped to relay events in the SQS-142
System Setup dialog. Omron PLC output wiring is illustrated below.
Input Wiring: The 0CH inputs on Omron PLCs correspond to Input# 1 to 12 in the
SQS-142 software. These physical inputs are mapped to input events in the SQS-142
System Setup dialog. Omron PLC input wiring is illustrated below.