Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 422)

App-53
IM 04L31A01-01E
Appendix
App
Appendix 10 Expression Examples
Function
Averages the measured values on channel 1 every 5 minutes and displays the result.
Scan Interval
1 second
Expression
31 = 31*(31.LT.K02)+K01
32 = 32*(31.NE.K01)+01
33 = 32/31
34 = (33*(31.EQ.K02))+(34*(31.NE.K02))
K01 = 1
K02 = 300
Explanation
Channel 31 is a counter that increments by 1 every scan interval. It counts from 1 to 300, and
then repeats.
Channel 32 integrates the measured values on channel 1 until channel 31 reaches 300.
Channel 33 calculates the average value of channel 1.
Channel 34 displays the value of channel 33 when channel 31 is 300, and holds that value until
the next time channel 31 becomes 300.
Displaying the Average Value
Channel 31
(counter)
Channel 32
(integrated value)
Channel 33
(average value)
Channel 34
(average every 5 min.)
0
300
Time
5 minutes