
Chapter 5 Power Supply / CPU
5-18
(4) External device malfunction
The PLC user program detects malfunctions of external devices. If a fatal error is detected the system ent
ers into the STOP state, and if an ordinary error is detected the system continues its operation.
REMARK
1) In occurrence of a error, the state is to be stored in the representative system error flag F006.
2) For details of flags, refer to Chapter 11. Troubleshooting.