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Appendix C
Data Processing Timing
Sampling
The Unit processes input data in the following two blocks.
•
A:
Input sampling time = Sampling period x No. of mean value processings
•
B:
Operation process and data set to the data input word
Data processing
Next data processing
The Unit has the following two sampling periods.
•
Fast:
1 ms (with 0.3-ms sampling time)
•
Slow:
2 ms (with 0.6-ms sampling time)
The necessity of the sampling hold process depends on the timing hold.
Sampling Example
The following are typical sampling timing examples.
Example 1
Timing Hold:
Normal
No. of Mean Value Processings: 1
Input Sampling Speed:
Fast
Example 2
Timing Hold:
Sampling hold
No. of Mean Value Processings: 4
Input Sampling Speed:
Fast
Timing input
0.05 ms min.
Waiting for next
timing input
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