Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 374)

App-5
IM 04L31A01-01E
Appendix
App
Measurement channel: 3, computation channel: 6, internal control channel: 6, external
control channel: 3.
Data Maximum Number of Data Points and Maximum Sampling Length
Event data Maximum number of data points = 1,200,000/(3CH Ч Ч Ч Ч Ч 2 bytes + 6 Ч Ч Ч Ч Ч 4 bytes
+ 6 Ч Ч Ч Ч Ч 2 bytes + 3 Ч Ч Ч Ч Ч 2 bytes) = 25,000
When the sampling interval of event data is 1 s
Maximum sampling length = 25,000 data points Ч
Ч Ч Ч Ч 1 s = 25,000 s
(approx. 7 hours)
• Display Data and Event Data
Measurement channel: 2, computation channel: none, internal control channel: none,
external control channel: none.
Data Maximum Number of Data Points and Maximum Sampling Length
Display data Maximum number of data points = 900,000/(2CH × 4 bytes + 0 × 8 bytes +
0 × 2 bytes + 0 × 2 bytes) = 112,500
However, the maximum is limited to 75,000 data points. Therefore, the
maximum number of data points = 75,000.
When the display update rate is 30 min/div (60-s sampling interval)
Maximum sampling length = 75,000 data points Ч
Ч Ч Ч Ч 60 s = 4,500,000 s
(approx. 52 days)
Event data Maximum number of data points = 300,000/(2CH × 2 bytes + 0 × 4 bytes +
0 × 2 bytes + 0 × 2 bytes) = 75,000
However, the maximum is limited to 30,000 data points. Therefore, the
maximum number of data points = 30,000.
When the sampling interval of event data is 1 s
Maximum sampling length = 30,000 data points Ч
Ч Ч Ч Ч 1 s = 30,000 s
(approx. 8 hours)
Measurement channel: 3, computation channel: 6, internal control channel: 6, external
control channel: 3.
Data Maximum Number of Data Points and Maximum Sampling Length
Display data Maximum number of data points = 900,000/(3CH Ч Ч Ч Ч Ч 4 bytes + 6 Ч Ч Ч Ч Ч 8 bytes +
6 Ч Ч Ч Ч Ч 4 bytes + 3 Ч Ч Ч Ч Ч 4 bytes) = 9,375
When the display update rate is 30 min/div (60-s sampling interval)
Maximum sampling length = 9,375 data points Ч
Ч Ч Ч Ч 60 s = 562,500 s
(approx. 6.5 days)
Event data Maximum number of data points = 300,000/(3CH Ч Ч Ч Ч Ч 2 bytes + 6 Ч Ч Ч Ч Ч 4 bytes +
6 Ч Ч Ч Ч Ч 2 bytes + 3 Ч Ч Ч Ч Ч 2 bytes) = 6,250
When the sampling interval of event data is 1 s
Maximum sampling length = 6,250 data points Ч
Ч Ч Ч Ч 1 s = 6,250 s
(approx. 1.7 hours)
Appendix 1 Supplementary Explanation of the Acquisition of Display Data/Event Data to the Internal Memory