Mitsubishi Electric MELSEC iQ-R Series User Manual page 165

Alert flag
When an alert has occurred in CH1, the alert definition is stored in 'CH1 Alert definition' (Un\G401), and this flag turns ON.
For the conditions where this flag turns OFF, refer to the following.
Page 79 Condition in which 'CH1 Alert flag' (XC) turns OFF
The following table lists the flags and buffer memory addresses of alert definitions for each channel.
Channel
CH1
CH2
CH3
CH4
'CH1 Alert flag' (XC)
OFF
'CH1 Alert definition' (Un\G401)
Executed by the temperature control module
■Device No.
The following shows the device number of this input signal.
Signal name
Alert flag
Alert flag
XC
XD
XE
XF
ON
Detected alert definition
0
CH1
XC
Buffer memory address
Un\G401
Un\G601
Un\G801
Un\G1001
CH2 CH3
XD XE
ON/OFF state
OFF: No alert has occurred.
ON: An alert has occurred.
CH4
XF
APPX
163
Appendix 2 I/O Signal
A