Yokogawa PC-Based MX100 - Manual (Page 21)

1-12 IM MX100-01E
Saving Data to the CF Card
Data Saving When Communication Is Disconnected and Dual Save Function
If communication is disconnected while the PC is recording (saving) measured data and
a 60-s timeout* expires, the measured data is saved to the CF card at 60-s intervals.
When the save operation is started, a file is created for each measurement interval
(referred to as the monitor interval on the MX100 Standard Software). As the save
operation progresses and the file for the shortest measurement interval reaches 5 MB,
the file is closed. At the same time, files of other measurement intervals (files that have
not reached 5 MB) are also closed. Then, a new file is created for each measurement
interval setting once again, and the save operation continues. When the communication
with the PC resumes and acquisition of measured data resumes, the save operation
automatically stops.
If the /DS option function (see “Saving Data to the CF Card” in section 5.1) is enabled,
saving of measured data to the CF card is linked to recording on the PC, even if
communication is disconnected.
To manually stop the operation, press the access stop switch (see “Ejecting the CF Card”
in section 2.8) located above the CF card slot on the main module.
The table below shows the interval (a guideline) over which data can be saved to the CF
card when one type of measurement interval is used.
* The time from the point when the communication between the PC and MX100 is
disconnected and acquisition of measured data is stopped to the point when data storage to
the CF card starts.
Number of
Saved CHs
Measurement
Interval
Capacity of the CF card
32 MB
(6 files)
64 MB
(12 files)
128 MB
(34 files)
256 MB
(49 files)
512 MB
(98 files)
1 GB
(196 files)
2 GB
(390 files)
10 CHs
10 ms 2.1 hours 4.2 hours 8.7 hours 17.5 hours 35.3 hours 2.9 days 5.9 days
50 ms 10.9 hours 21.8 hours 1.8 days 3.6 days 7.3 days 14 days 29 days
100 ms 21.8 hours 1.8 days 3.6 days 7.2 days 14 days 29 days 59 days
200 ms 1.8 days 3.6 days 7.2 days 14 days 29 days 59 days 118 days
500 ms 4.5 days 9 days 18 days 36 days 73 days 147 days 295 days
1 s 9 days 18 days 36 days 72 days 147 days 295 days 591 days
2 s 18 days 36 days 72 days 145 days 294 days 591 days 1182 days
24 CHs
10 ms 54 min. 1.8 hours 3.6 hours 7.3 hours 14.7 hours 29.5 hours 2.4 days
50 ms 4.5 hours 9 hours 18 hours 1.5 days 3 days 6.1 days 12 days
100 ms 9 hours 18 hours 1.5 days 3 days 6.1 days 12 days 24 days
200 ms 18.1 hours 1.5 days 3 days 6.1 days 12 days 24 days 49 days
500 ms 1.8 days 3.7 days 7.5 days 15 days 30 days 61 days 122 days
1 s 3.7 days 7.5 days 15 days 30 days 61 days 123 days 246 days
2 s 7.5 days 15 days 30 days 60 days 122 days 246 days 492 days
60 CHs
10 ms 21 min. 42 min. 1.4 hours 2.9 hours 5.8 hours 11.7 hours 23.4 hours
50 ms 1.8 hours 3.6 hours 7.2 hours 14.7 hours 29.4 hours 2.4 days 4.9 days
100 ms 3.6 hours 7.2 hours 14.4 hours 29.4 hours 2.4 days 4.9 days 9.8 days
200 ms 7.2 hours 14.4 hours 28.8 hours 2.4 days 4.9 days 9.8 days 19 days
500 ms 18.1 hours 1.5 days 3 days 6 days 12 days 24 days 49 days
1 s 1.5 days 3 days 6 days 12 days 24 days 49 days 98 days
2 s 3 days 6 days 12 days 24 days 49 days 98 days 196 days
File Structure and Saved Channels
A file is created on the CF card for every measurement interval. The measurement
interval is the one specified as the monitor interval under Measurement Group in the
Acquisition Conditions screen of the MX100 Standard Software (not the recording
interval).
Measurement groups of the same monitoring interval are saved to the same file.
The channels saved to the file are those whose Monitor check boxes are selected in
the Channel screen (not those whose Record check boxes are selected). For other
specifications relating to saving of data, see “Data Storage” in section 4.2.
1.2 Main Module Functions