I work on S7-300. And there are some other I/O module. I download a simple program to CPU314, the SF LED on CPU is normal but all the SF LED on analog module turns on. I tryed just use CPU314 with one AI module,however the SF LED on AI module still turns on. Anybody know what what happen? My configuration as below:
Rack 0:
1: Power Supply (PS307 5A)
2: CPU314
3: IM365 (SEND)
4: CP341 (Modbus Master)
5: AI8 (DC24V)
6: AI8 (DC24V)
7: AO2 (DC24V)
8: DI32 (DC24V)
9: DI16 (DC24V)
10: DO32 (DC24V)
11: CP341 (Modbus Slave)
Rack 1:
1: Empty
2: Empty
3: IM365 (RECEIVE)
4: AI8 (DC24V)
5: AI8 (DC24V)
Rack 0:
1: Power Supply (PS307 5A)
2: CPU314
3: IM365 (SEND)
4: CP341 (Modbus Master)
5: AI8 (DC24V)
6: AI8 (DC24V)
7: AO2 (DC24V)
8: DI32 (DC24V)
9: DI16 (DC24V)
10: DO32 (DC24V)
11: CP341 (Modbus Slave)
Rack 1:
1: Empty
2: Empty
3: IM365 (RECEIVE)
4: AI8 (DC24V)
5: AI8 (DC24V)