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3.3 I/O Signals for the Programmable Controller CPU
3.3.2 Details of I/O signals
3
SPECIFICATIONS
Device No. Signal Name Description
XA
Offset/gain
setting mode flag
[In offset/gain setting mode]
(1) This signal is used as an interlock condition to turn ON/OFF the User range writing request (YA)
when the value at completion of offset/gain setting adjustment is registered.
(2) Refer to Section 4.6 regarding the offset/gain settings.
[In normal mode]
(1) This signal is used as an interlock condition to turn ON/OFF the User range writing request (YA)
when the user range is restored.
(2) Refer to Chapter 7 for the user range restoration.
XB
Channel change
completed flag
(1) This signal 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) Refer to Section 4.6 regarding the offset/gain settings.
Module ready (X0)
OFF
Offset/gain setting mode flag (XA)
User range writing request (YA)
Performed by the A/D converter module
Performed by the sequence program
Module ready (X0)
ON
Offset/gain setting mode flag (XA)
User range writing request (YA)
Performed by the A/D converter module
Performed by the sequence program
Offset/gain setting mode
Offset/gain specifications
(Un\G22, Un\G23)
Channel change completed
flag (XB)
Channel change request (YB)
Performed by the A/D converter module
Performed by the sequence program
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