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Analog Input Functions and Operating Procedures Section 7-6
4. With the fourth cycle, the Data 4 is stored in the first history buffer.
Mean value = (Data 4 + Data 3 + Data 2 + Data 1)
÷ 4
5. With the fifth cycle, Data 5 is stored in the first history buffer.
Mean value = (Data 5 + Data 4 + Data 3 + Data 2)
÷ 4
When a disconnection is restored, the mean value processing function begins
again from step 1.
Note 1. When the mean value processing function is used, the delay in refreshing
converted data for input signal changes will be as shown in the following
diagram.
2. Specify “no mean value processing” to follow conversion of a rapid change
in input signals.
Response Time for a
Resolution of 1 ms/4,000
Unit: ms
(Mean value
processing)
Conversion value
Data 4
Data 3
Data 2
Data 1
(Mean value
processing)
Conversion value
Data 5
Data 4
Data 3
Data 2
Input signal
to the Unit (V)
Conversion data
Time (ms)
Time (ms)
t: Delay
For V = 20 V (−10 to 10 V)
When Resolution is 1 ms/4,000
• For One Word
t = n + (2 to 3)
• For m Words (1 < m ≤ 4)
No averaging (n = 1) or two averaging buffers (n = 2)
t = n
× (m + 2)
For n averaging buffers (4
≤ n ≤ 64)
t = (n
− 2) × m + 10.5
When Resolution is 500
µs/8,000
• For One Word
t = [n + (2 to 3)]
× 1/4
• For m Words (1 < m ≤ 4)
No averaging (n = 1) or two averaging buffers (n = 2)
t = n
× (m + 2) × 1/2
For n averaging buffers (4
≤ n ≤ 64)
t = [(n
− 2) × m + 10.5] × 1/2
mn
64 32 16 8 4 2 1
4 258.5 130.5 66.5 34.5 18.5 12 6
3 196.5 100.5 52.5 28.5 16.5 10 5
2 134.5 70.5 38.5 22.5 14.5 8 4
1 673519117 5 3
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