GE FanucF31X139APMALG2FR01 New Module

Description

Outputs are scanned during the output scan portion of the sweep, immediately following the logic solution. Outputs are updated using data from %Q (for discrete outputs) and %AQ (for analog outputs) memory, as appropriate. If the Genius Communications Module is configured to transmit global data, then data from %G memory is sent to the GCM, GCM+, or GBC. The Series 90-20 and Micro output scans include discrete outputs only. During the output scan, all Series 90-30 output modules are scanned in ascending reference address order. If the CPU is in the STOP mode and the CPU is configured to not scan I/O during STOP mode, the output scan is skipped. The output scan is completed when all output data has been sent to all Series 90-30 output modules.

A checksum calculation is performed on the user program at the end of every sweep. Since it would take too long to calculate the checksum of the entire program, you can specify the number of words from 0 to 32 to be checked on the CPU detail screen. If the calculated checksum does not match the reference checksum, the program checksum failure exception flag is raised. This causes a fault entry to be inserted into the PLC fault table and the PLC mode to be changed to STOP. If the checksum calculation fails, the programmer communications window is not affected.

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