Omron CRT1 - 10-2008 Operation Manual page 461

Analog I/O Slave Unit Functions
438
4. Input the voltage (or current) transmitted from the connected device to the
Unit's input terminal that is equivalent to the 100% value.
5. Click the Fix Upper Adjusting Value Button in the Adjustment Window,
and input the adjusted value.
6. Input the voltage (or current) transmitted from the connected device to the
Unit's input terminal that is equivalent to the 0% value.
7. Click the Fix Lower Adjusting Value Button, and input the adjusted value.
Section 11-4