• Sampled Data Size per File
Display Data
Data size per sample×file save interval/sampling interval
The sampling interval is determined by dividing the Trend/Storage interval (s/div) by
30.
Example 2: When recording the display data of 30 measurement channels, 240
external input channels, and 10 computation channels with the
Trend/
Storage interval set to 30 min/div (display data sampling interval is 60 s)
and the file save interval set to 1 day (24 h)
(30×4 bytes + 240×4 bytes + 10×8 bytes + 8 bytes)×24h×60×6
0/60 s
= 1,168 bytes×24h×60×60/60 s
= 1,681,920 bytes
Event Data
Data size per sample×data length/sample rate
Example 3:
When recording the event data of 30 measurement channels, 240
external input channels, and 10 computation channels with the sample
rate set to 1 s and the data length set to 2 h.
(30×2 bytes + 240×2 bytes + 10×4 bytes + 8 bytes)×2h×60×60
/
1 s
= 588 bytes×2h×60×60/1 s
= 4,233,600 bytes
Size of a File
The size of a file is the sum of the sampled-data related information size and the sampled
data size.
Display Data
Example 4
: When recording under the conditions given in examples 1 and 2
From examples 1 and 2, the size of a file is 36,842 + 1,681,92
0 = 1,718,762 bytes ≈
1.639 MB.
Event Data
Example 5: When recording under the conditions in examples 1 and 3
From examples 1 and 3, the size of a file is 36,842 + 4,233,600 = 4,270,442 bytes ≈
4.073 MB.
Appendix 1 Data File Size
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