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7 OPERATION ADJUSTMENT
7.2 Operation and Test
113
7
■Serial connection
GX Works3 settings
7.2 Operation and Test
Self-diagnostic function
When the power of the CPU module is turned on, the self-diagnostic function to check for errors starts in the module. The
CPU module boots when there is no error with the hardware, parameters and program.
When there are no errors, the module enters the RUN status (the P.RUN LED turns on) in response to the RUN instruction
(Page 114 Running, Stopping, and Resetting). If any error is detected, the "ERR" LED flashes or lights up.
Monitoring and debugging
The ON/OFF status of PLC's devices, current values or set values can be monitored or changed by using engineering tools.
For details, refer to GX Works3 Operating Manual.
No. Item Selection item Internal setting Input value
1) PC side I/F Serial/USB RS-232C
COM Port COM1
Transmission Speed 115.2Kbps
2) PLC side I/F PLC Module PLC Mode FX5CPU
Other Station Setting No Specification Check at Communication
Time
30 seconds
Retry Times 0 times
1) 2)
COM port
(COM1)
RS-232 cable
(FX-232CAB-1)
FX5-232ADP
1)
2)
COM port
(COM1)
RS-232 cable
(FX-232CAB-1)
FX5-232-BD