Omron CRT1 - 10-2008 Operation Manual page 472

Analog I/O Slave Unit Functions
Adjusting the High Limit
Cumulative Counter
6. Output the value from the Master Unit that is equivalent to the Output Unit's
maximum (100%) value. Adjustment using the 100% value is highly recom-
mended, but adjustment can be performed using a lower value.
7. Adjust the analog value that is output from the terminal using the High Ad-
justment slide bar, as shown in the following window. Repeat adjustments
until the correct 100% value is output from the output device. After com-
pensation is completed, click the Fix Upper Adjusting Value Button.
To return to the default settings, click the Default Setting Button.
8. Click the Close Button to close the Adjustment Window.
9. Return to the General Tab Page, click the Transfer [PC to Unit] Button to
download the data, and then click the Reset Button to reset the Unit.
10. Click the OK Button and exit the window.
Note If the Low Limit adjustment is not performed for the 0% value, a discrepancy
will occur when the High Limit is adjusted. Therefore, always adjust the Low
Limit for Output Units before adjusting the High Limit.
The cumulative counter calculates an approximation to the integral of analog
output values over time. The cumulated value can be calculated in "count
hours" (by selecting "hours") or "count minutes" (by selecting "minutes"). The
count value is the analog output value in the industry unit obtained after scal-
ing. For example, 100.0 count hours indicates a value equivalent to an analog
output value of 100 counts continuing for one hour. The counter range for a
two-word area (four bytes) for count hours or count minutes is –214,748,364.8
Section 11-4
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