YOKOGAWA Daqstation DX2000 User Manual

App-2
IM 04L42B01-01E
• DataSizeperSample
 DisplayData
(Number of measurement channels×4 bytes) + (Number of external input channels×4
bytes) + (number of computation channels×8 bytes) + 8 bytes (time data)
 EventData
(Number of measurement channels×2 bytes) + (Number of external input channels×2
bytes) + (number of computation channels×4 bytes) + 8 bytes (time data)
• 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 interval (in seconds) by 30 (40
if the trend interval is 5 or 10 s).
Example2: If the display data of 30 measurement channels, 240 external input
channels, and 10 computation channels is recorded with a trend interval of 30 min/div
(the sampling interval of display data is 60 s) and a file save interval of 1 day (24 h)
(30×4 bytes + 240×4 bytes + 10×8 bytes + 8 bytes)×24 h×60×60/60 s
= 1,168 bytes×24 h×60×60/60 s
= 1,681,920 bytes
 EventData
Data size per sample×data length/sample rate
Example3: If the display data of 30 measurement channels, 240 external input
channels, and 10 computation channels is recorded with a sample rate of 1 s and data
length of 2 h
(30×2 bytes + 240×2 bytes + 10×4 bytes + 8 bytes)×2 h×60×60/1 s
= 588 bytes×2 h×60×60/1 s
= 4,233,600 bytes
SizeperFile
The size per file is the sum of the size of information other than the sampled data and the
size of the sampled data.
 DisplayData
Example4: If recording under the conditions of examples 1 and 2
From examples 1 and 2, we obtain 60,938 + 1,681,920 = 1,742,858 bytes = 1.662 M
bytes
 EventData
Example5: If recording under the conditions of examples 1 and 3
From examples 1 and 3, we obtain 60,938 + 4,233,600 = 4,294,538 bytes = 4.096 M
bytes
Appendix1FileSizeofDisplayDataandEventData

YOKOGAWA Daqstation DX2000 Specifications

General

Brand	YOKOGAWA
Model	Daqstation DX2000
Category	Recording Equipment
Language	English