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MELSEC-Q
3 SPECIFICATIONS
Device No. Signal name Description
XB
Channel change
completed flag
(1) This is used as an interlock condition for setting the channel change request (YB) to
ON/OFF when changing the channel for which the offset/gain settings are to be
performed.
(2) See Section 4.6 regarding the offset/gain settings.
Channel change request (YB)
Offset/gain setting mode
Offset/gain specifications
(buffer memory addresses 22 and 23:
Un\G22 and Un\G23)
Channel change completed
flag (XB)
Performed by the A/D converter module
Performed by the sequence program
XD
Maximum
value/minimum
value reset
completed flag
(1) This turns ON when the maximum and minimum values stored in buffer memory
addresses 30 to 45 (Un\G30 to Un\G45) are reset by setting the maximum
value/minimum value reset request (YD) to ON.
Maximum value/minimum value
reset completed flag (XD)
Maximum and minimum values
storage area
(buffer memory addresses 30 to 45:
Un\G30 to Un\G45)
Maximum value/minimum value
reset request (YD)
Performed by the A/D converter module
Performed by the sequence program
XE
A/D conversion
completed flag
(1) This turns ON when conversion for all of the channels that are conversion enabled
has been completed.
XF Error flag
(1) The error flag turns ON when a write error occurs.
(2) To clear the error code, set the error clear request (YF) to ON.
The error code is read during this interval.
Error flag (XF)
Error clear request (YF)
Performed by the A/D converter module
Performed by the sequence program