Andover Controls Infinity Manual page 97

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This program will not be Run again until the FSCSLinkActive numeric
is set to FALSE.
The command for the FSCS to print out the status of the switches is:
Print "(SPR)(?SBK1)"; to COMM1
The "(SPR)" part tells the FSCS to suppress all switch activation
messages until it is polled. The "(?SBK1)" part tells the FSCS to perform
a Switch Status Block Transfer on I/O card 1. If you had a second switch
I/O card, you would request it's switch data by sending "(?SBK2)" to the
FSCS.
The Read statement for reading the FSCS switch data from COMM1 into
the string InBuffer is:
Result = read(COMM1, 100, InBuffer, 500, ")")
This command tells the CX9200 to wait for 100 characters, OR 5
seconds, OR until it receives the right parenthesis. Under normal
circumstances, it will receive the parenthesis first.
5-21
Smoke Control Programs
Infinity Smoke Control Guide
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