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MELSEC-Q
4 SETUP AND PROCEDURES BEFORE OPERATION
4.6 Offset/Gain Settings
When the user range setting is used, perform the offset and gain settings according to
the following procedure.
If the utility package is installed, perform the offset/gain settings according to the
pocedure described in Section 5.6.2.
Start
Use the intelligent
functional module switch
setting to set the offset/gain
setting mode.
Verify that the mode is set
to offset/gain setting and
the RUN LED is flashing.
Set the offset setting
channel in buffer memory
address 22 (Un\G22).
Set buffer memory address
23 (Un\G23) to 0.
Set the gain setting
channel in buffer memory
address 23 (Un\G23).
Set buffer memory address
23 (Un\G23) to 0.
Turn the channel change
request signal (YB) ON.
Verify that the channel
change completed flag
(XB) turns ON.
Adjust other
channels?
YES
NO
Set the user range writing
request (YA) to ON, and
then register the offset/
gain settings in the D/A
conversion module.
Error occurred?
YES
NO
3)
2)
1)
2)
Turn the channel change
request signal (YB) to OFF.
Channel change completed
flag (XB) turns OFF.
Adjust gain?
NO
YES
3)
Turn the set value change
request signal (Y0C) ON.
Verify that X0C turns ON
after the analog output
value is changed, and then
turn the set value change
request signal (Y0C) OFF.
NO
YES
Desired analog
output value?
Write the adjustment amount
for the analog output value in
buffer memory address 24
(Un\G24).
1)
Set the intelligent
functional module switch to
the normal mode.
End
Turn the channel change
request (YB) to ON.
Verify that the channel
change completed flag
(XB) is ON.
POINT
Offset gain cannot be set if the factory settings are used.
