Mitsubishi Electric MELSEC-Q Series User Manual page 96

3 SPECIFICATIONS
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(9) Setting change completion flag (XnB)
(a) This signal turns on when any setting value of the buffer memory areas is
changed and reflected to the control after Setting change command (YnB) is
turned on.
(b) When Setting change command (YnB) turns off, this flag (XnB) also turns
off.
(10) Alert flag (XnC, XnD)
(a) This signal turns on when an alert occurs on the channel.
Channel
1
2
(b) When an alert occurs, the alert content is stored in Alert definition (buffer
memory address: 5, 6) and Alert flag (XnC, XnD) turns on.
Alert flag On/off status
OFF: Without alarm
XnC
occurrence
ON : With alarm
XnD
occurrence
MELSEC-Q
Corresponding buffer memory
address (decimal)
5
6
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