Omron CJ Series Operation Manual page 149

Integral Value Overflow
The integral value will become undefined if the integral value exceeds the data range (−2147483648 to
2147483647) during integral calculation. For the CJ1W-PDC15, an integral value overflow will occur
after a minimum of 45 days has lapsed from the start of integral calculation.
Use the Integral Value Calculation Start, Integral Value Reset and (for the CJ1W-PH41U only) Integral
Value Coefficient so that an integral value overflow does not occur.
Example: Integral value overflow (minimum conditions). The table shows the integral values for the fol-
lowing minimum conditions.
• Process value: –32768 (constant)
• Integral unit: Minute
Number of days lapsed
(days)
0
1
2
to
45
46
Applicable Units
CJ-series Analog I/O Units Operation Manual for NJ-series CPU Unit(W498)
Integral value
0
−47185920
−94371840
to
−2123366400
Undefined
Isolated-type Direct Current Input Unit
Isolated-type Universal Input Unit
Appendices
CJ1W-PDC15
CJ1W-PH41U
A-9