Mitsubishi Q64RD User Manual page 48

4 SETUP AND PROCEDURES BEFORE OPERATION
Switches to offset/gain setting mode
3
Specifies channel where offset/gain setting will be made
Offset
request
Specifies channel where offset setting will be made
Specifies channel where gain setting will be made
Gain
request
Changes channel where offset/gain setting will be made
W rite
Registers offset/gain setting results to module
request
Switches to normal mode
3
The program in the dotted area is a common program.
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(2) Program examples
The program in the dotted area of (a) is common to (a), (b) and (c).
In this example, the I/O numbers of the Q64RD are X/Y0 to X/YF.
• Offset request ...... M0
• Gain request ........ M1
• Write request ....... M2
• Mode switching .............................................. M3
• Offset/gain temperature set value ........................... D0
• Dedicated instruction (G.OFFGAN) setting storage device ..... D1
(a) When switching the mode using the dedicated instruction (G.OFFGAN)
The following program example switches to the offset/gain setting mode with
the dedicated instruction (G.OFFGAN) and writes the offset/gain values of
CH. 1 to the Q64RD.
Processing in normal mode
MELSEC-Q
Stores setting of dedicated
instruction (G.OFFGAN) into D1.
Dedicated instruction (G.OFFGAN)
[Offset value setting]
Stores channel where offset/
Inputs CH .1 offset temperature
gain setting will be made into D0.
set value.
Turns on C H.1 offset setting request.
Specifies offset setting channel.
Turns off C H.1 offset setting request.
Sets 0 to buffer memory
Turns off offset request.
address 23.
[Gain value setting]
Specifies gain setting channel.
Inputs CH .1 gain temperature
set value.
Sets 0 to buffer memory
address 22.
Turns on C H.1 gain setting request.
Turns off C H.1 gain setting request.
Turns ON channel change
request (YB).
Turns off gain request.
[Setting write]
Turns OFF channel change
Turns on user range write request.
request (YB).
Turns off user range write request.
Turns ON user range change
request (YA).
Turns off w rite request.
Turns OFF user range change
request (YA).
Stores setting of dedicated
instruction (G.OFFGAN) into D1.
Dedicated instruction (G.OFFGAN)
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