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Contents
User’s manual - Hardware 7
6. Troubleshooting..............................................................75
6.1 Troubleshooting procedure ........................................................75
6.2 Checking the power supply.........................................................76
6.3 Checking the CPU......................................................................77
6.4 Checking program .....................................................................77
6.5 Checking input ...........................................................................78
6.6 Checking output .........................................................................79
6.7 Troubles due to external factors .................................................80
6.8 I/O module replacement during operation ..................................81
6.9 List of self-diagnostic items ........................................................82