CMTimeChart Monitor
14-8
14.3.2 Trigger Condition Setting (Sampling)
The sampling conditions in the Trigger condition setting dialog box are set as follows.
Setting item
Item Description
Communication cycle
The set EtherCAT communication cycle is displayed.
Although the communication cycle specified in "MC common settings" is in [µs] unit,
the communication cycle is displayed in [ms] unit according to the time scale
display.
Communication cycle
magnification
Set the EtherCAT communication cycle magnification.
Range: 1 to 255
Sampling cycle
The determined sampling cycle is displayed according to the above communication
cycle magnification.
Measurement time (ms)
Select data measurement time. The range of measurable time varies according to
the EtherCAT communication cycle.
EtherCAT
communication cycle
Measurement time range
0.5 ms 4 ms to 130.560 s
2.0 ms 6 ms to 522.240 s
1.0 ms 8 ms to 261.120 s
4.0 ms 32 ms to 1,044.480 s
No. of sampling data
The number of data sampled is displayed according to the above settings.
No. of sampling data = Measurement time / Sampling cycle
EtherCAT communication cycle: 500/1,000/2,000/4,000 µｓ
Cycle magnification: 1 to 255
No. of sampling data: 8 to 1,024
Sampling cycle: Measurement time / No. of sampling data
Measurement time [EtherCAT communication cycle x Communication cycle magnification x No. of sampling data]
(0.004 s to 1,044,480 s）
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