INFICON SID-142 Thin Film Deposition Controller - Manual (Page 64)

Chapter 5 Digital IO
5-3
Indexer Wiring: The SQS-142 software supports up to four source indexers (of up to
15 pockets) and a 15 position substrate indexer. However, each indexer is unique.
Contact Sigma Instruments for information on the PLC program and I/O wiring required
for your indexer.
5.2 PLC Setup and Test
In the SQS-142 software select Edit, Setup, then the PLC tab. Set the Address to
match the PLC Address. Set the Comm Port to the serial port you are using.
The registers shown are those that have been programmed for your PLC. Because
their redefinition is not a trivial task, these values cannot be changed in the SQS-142
program. Contact Sigma Instruments if you need to change the internal PLC register
definitions.
The Test section provides a simple means of testing your PLC communications and
digital I/O wiring. To set a relay on the PLC, go back to the Digital I/O tab and find
which I/O event is assigned to that relay. On the PLC tab, select the same event in the
test dropdown, then click Set Relay. The assigned Relay# should close. Click Clear
Relay to open the relay.
To test a digital input, find the Input# that is assigned to an event on the PLC tab.
Select the input event in the dropdown, then click Read Input to verify the state of the
PLC input.
To move a source or substrate indexer, select the index (i.e. pocket) to activate, then
click the appropriate move button. For source indexers, each indexer will move.