Yokogawa PC-Based MX100 - Manual (Page 86)

3-5
IM MX180-01E
Vewer
3
2
1
4
5
App
Index
• Even when synchronization is performed, the files before synchronization (.mxd extension)
are not deleted.
• If you change the PC’s time while data is being monitored on the Integration Monitor of the
MX100 Standard Software, the error in the clock counter value per millisecond of the PC
used in the synchronization process will become large. If the error in this value is greater
than or equal to 2% when synchronizing the data file created at the time PC’s time was
changed, the clock counter value of 1 millisecond is considered to be 1 for the purpose of
synchronization.
• If communication is disrupted temporarily due to power failure or network failure during the
recording operation, the PC time of the data measured by the MX100 while communication
is disrupted (see “Details of Synchronization” above) is recorded as the old PC time before
communication was disrupted in the file created immediately after communication recovers.
If you attempt to synchronize this file, a dialog box with the message “Some channels do
not have enough information to synchronize.” appears. In this case, synchronization is
performed with the premise that the MX100 measured the data using the logical (estimated)
record interval.
Jonng
You can join data saved in the MX100’s CF card.
[File 0]
Start condition:
start
Stop condition:
divide
Measurement
Group 1
File groups with
files numbered 0
This becomes the unit of joining
[File 1]
Start condition:
divide
Stop condition:
divide
• • •
[File 2]
Start condition:
divide
Stop condition:
divide
[File N*]
Start condition:
divide
Stop condition:
exit
*Max number of files
time
[File 0]
Start condition:
start
Stop condition:
divide
Measurement
Group 2
[File 1]
Start condition:
divide
Stop condition:
divide
• • •
[File 2]
Start condition:
divide
Stop condition:
divide
[File N*]
Start condition:
divide
Stop condition:
exit
Recording start Recording stop
[File 0]
Start condition:
start
Stop condition:
divide
Measurement
Group 3
[File 1]
Start condition:
divide
Stop condition:
divide
• • •
[File 2]
Start condition:
divide
Stop condition:
divide
[File N*]
Start condition:
divide
Stop condition:
exit
• Files from multiple measurement groups having the same file number are joined into
file groups.
• The number of files contained in a file group must equal the number of measurement
groups specified (for example, if 3 measurement groups are set, each file group
contains 3 files). If one or more files are missing, file grouping stops.
• The resulting files that are created are limited to five million points or 2 GB. If the
limit is not exceeded from the file group of the specified file number to the file group
of the record stop file number, the software searches for file groups of file numbers
preceding the file group of the specified file number and joins as many of them as
possible without exceeding the limit.
• The extension for joined files is .mxc.
Note
• Copy CF card data to the PC hard disk before processing it.
• Joining may take time depending on the number of data points in the divided files.
• Even when joining is performed, files prior to the joining (with extension .MXD) are not
deleted.
3.1 Loadng Data Fles