External Power Supply Monitoring Function - Mitsubishi Electric NZ2GF2B1-16D User Manual

9.10

External Power Supply Monitoring Function

By using this function, the I/O module monitors the ON/OFF status of the external power supply and shows it on the I/O
PW LED on the output module.
By using External power supply monitor request flag (RWw3.b0), a moderate error is generated when the external
power supply is off. Thus, the ON/OFF status of the external power supply is notified and the output module can be
stopped.
(1) Operation of the external power supply monitoring function
When the external power supply is turned off while External power supply monitor request flag (RWw3.b0) is on,
a moderate error occurs. When using this function, check that the external power supply stabilizes before turning
on External power supply monitor request flag (RWw3.b0). When turning off the external power supply, turn off
External power supply monitor request flag (RWw3.b0) in advance.
(2) Setting and checking the external power supply monitoring function
Item
External power supply monitor request flag
(RWw3.b0)
External power supply monitor state flag
(RWr3.b0)
Description
Sets whether to enable or disable the external power supply monitoring
function.
Indicates whether the external power supply monitoring function is
enabled or disabled.
CHAPTER 9 FUNCTIONS
Reference
Page 266, Appendix 2 (10) (a)
Page 263, Appendix 2 (4) (a)
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