Chapter 5 digital io, 1 plc installation – INFICON SID-242 Thin Film Deposition Controller User Manual

Page 75

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Chapter 5

Digital IO

5-2

5.1 PLC Installation


C

AUTION

: The Omron PLC uses a special RS-232 cable as shown below. Do not use a

standard serial cable. Damage to the SID-242 or the PLC could result.

Mount the PLC controller near the devices it is controlling and sensing. Connect the
PLC to a properly grounded power source. See the PLC User Manual on the SQS-242
CD-ROM for detailed PLC mounting and connection information. Connect the serial
cable supplied from the PLC serial port to your computer serial port.

Output Wiring: The 10.00 to 10.07 relays on Omron PLCs correspond to Relay# 1 to 8
in the SQS-242 software. These physical relays are mapped to relay events in the
SQS-242 System Setup dialog. Omron PLC output wiring is illustrated below. Notice
that some relays (i.e. 02/03 and 04/05/06/07 share a common terminal).

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