Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 370)

App-1
IM 04L31A01-01E
Appendix
App
Appendix 1 Supplementary Explanation of the
Acquisition of Display Data/Event Data
to the Internal Memory
This section explains in detail the function of the acquisition of display data/event data to
the internal memory. It is a supplement to the information covered in “Data Acquisition to
the Internal Memory”
in section 1.17, “Data Storage Function.”
Acquisition Mode of Event Data
Mode Description
Free Press the [START] key to start acquiring data to the internal memory; press the
[STOP] key to stop the acquisition. Data is overwritten when the event data
acquisition area is full or when the number of event data files* exceeds 16.
* Number of event data files
In manual save mode, a file is created for each data write operation (start
and stop operations). In auto save mode, a file is created every specified
time (data length) and at every specified date/time.
Trigger When the acquisition area of the internal memory is not divided:
A single event data file is created in the internal memory.
When the [START] key is pressed, the CX2000 enters a trigger-wait state.
After the trigger condition is met, a specified time (data length) of data is
acquired, and acquisition is stopped. Beyond this point, no more data is
acquired even if the trigger condition is met.
Data acquisition
Trigger wait
Trigger condition
met
Stop
When the acquisition area of the internal memory is divided:
A single event data file is created in each divided area (block).
When the [START] key is pressed, the CX2000 enters a trigger-wait state.
After the trigger condition is met, a specified time of data is acquired in a single
block, and acquisition is stopped. The CX2000 enters the trigger-wait state. If the
trigger condition is met again, data is acquired to the next block. When data is
acquired to all blocks, no more data is acquired even if the trigger condition is met.
Data acquisition
Trigger wait
Trigger condition
met
1st block
Data acquisition
Trigger wait
2nd block
Data acquisition
Trigger wait
Last block
Trigger condition
met Trigger condition
met
Stop
Rotate When the acquisition area of the internal memory is not divided:
A single event data file is created in the internal memory.
When [START] is pressed, the CX2000 enters a trigger-wait state.
After the trigger condition is met, a specified time data length of data is acquired,
and acquisition is stopped. The CX2000 enters the trigger-wait state. If the trigger
condition is met again, the data is overwritten. Overwriting of the data is repeated
each time the trigger condition is met while the CX2000 is in the trigger-wait state.
To stop the acquisition of the event data, press the [STOP] key.
Data acquisition
Trigger wait
Trigger condition
met
When the acquisition area of the internal memory is divided:
A single event data file is created in each divided area (block).
When the [START] key is pressed, the CX2000 enters a trigger-wait state.
After the trigger condition is met, a specified time of data is acquired in a
single block, and acquisition is stopped. The CX2000 enters the trigger-
wait state. If the trigger condition is met again, data is acquired to the next
block. If the trigger condition is met after data has been acquired to all
blocks, the first block is overwritten.
Appendix