Download Channel Isolated Digital-Analog Converter Module User`s Manual

4
SETUP AND PROCEDURES BEFORE OPERATION
(a) When switching the mode using the dedicated instruction (G(P).OFFGAN)
The following sample program switches to the offset/gain setting mode with the
dedicated instruction (G(P).OFFGAN), changes the channel where offset/gain
setting will be made, adjusts the offset/gain values, and writes the offset/gain values to the Q66DA-G.
Switches to offset/gain setting mode
Stores setting of dedicated
instruction (G.OFFGAN) into D2.
Dedicated instruction (G.OFFGAN)
Switch to the channel where offset/gain settings will be performed
Stores channel where offset/
gain setting will be made into D0.
\
Offset/gain range setting.
\
Specifies offset setting channel.
Set the amount of each change within the range from .-3000 to 3000 during adjustment
\
Sets 0 to buffer memory
address 23.
\
Sets 0 to buffer memory
address 22.
\
Specifies gain setting channel.
Turns ON channel change
request (YB).
Turns OFF channel change
request (YB).
Set the amount of each change within the range from -3000 to 3000 during adjustment
Set offset value adjustment to D1.
\
Set D1 to buffer memory
address 24.
Adjust the analog output value
Turn ON Set value change
request (YC).
Turn OFF Set value change
request (YC).
Register the result of offset/gain settings in the module
Turns ON user range change
request (YA).
Turns OFF user range change
request (YA).
Switches to normal mode
Stores setting of dedicated
instruction (G.OFFGAN) into D2.
Dedicated instruction (G.OFFGAN)
Processing in normal mode
The program in the dotted area is a common program.
4 - 14
4.6 Offset/Gain Settings