beautypg.com

Chapter 5 digital io, 1 plc installation – INFICON SID-142 Thin Film Deposition Controller User Manual

Page 63

background image

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.