Mitsubishi Q00JCPU User Manual page 351

6
FUNCTIONS
POINT
In the case of the Redundant CPU, the information of the error that occurred in the
other system is stored into the special relay (SM1610 to 1626) and special
register (SD1610 to 1636).
In any of the following cases, the other system error information is not stored.
• The other system is powered OFF/reset or has developed a hardware
failure.
• A watchdog timer error (error code: 5000, 5001) has occurred
• Tracking cable fault (not installed, disconnected, failed, etc.)
6.17 Self-diagnostics Function
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