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73VR2102 / 73VR2104 / 73VR2106 / 73VR2108 / 73VR2110 / 73VR2112 USERS MANUAL EM-7395-B Rev.24
10. DATA & FILES
10.1 73VR21x FILES
Files required to store the 73VR21x data are created automatically when the 73VR21x gets started. Table below
shows the types of files.
Type
Description
File Name
Extension
73VR21x Data File
Data sampled by the 73VR21x
Fixed (73VR)
VRD21
73VR21x Alarm History File
Alarm history data
Fixed (73VR)
VRA21
73VR21x Comment History File
Comment history data
Fixed (73VR)
VRM21
73VR21x Control File
Record pointer for 73VR.VRD21
Fixed (73VR)
VRC21
73VR21x Parameter File
Parameter settings such operation mode, pen setting
Fixed (73VR)
VRP21
CAUTION !
When you delete the data file in a CF Card, delete also the control file. In any event do not modify the control file. A
modified control file may destroy the data file.
WARNING !
Be sure to restart the 73VR21x before using a data file created by the 73VR21BLD configurator software. If not, the
data file will be destroyed.
DATA FILE
All 73VR21x data are stored in binary in single data file named ‘73VR.VRD21.’
An empty data file is already created at the startup of the 73VR21x using all available space. Once data recording
starts, sampled data are stored in this file. It means that the data file size is fixed regardless of the data volume in it.
In order to confirm data recording, open the file in Retrieve view.
All data are stored in a single file even if multiple sets of data are recorded within a day, or if single or multiple data
are recorded over multiple days. Trigger data are stored also in the same principle. Therefore the user must be aware
that some data may be overwritten by another of different configuration settings if you keep recording after setting
new configuration.
ALARM HISTORY FILE
Alarm history is stored in binary in single data file named ‘73VR.VRA21.’ Analog alarm events and discrete signal
status changes (regardless of alarm setting) are recorded in this file. Alarm events are recorded regardless of the
storing method.
Like the data file, an empty alarm history file is already created at the startup of the 73VR21x. The file size is fixed
regardless of the data volume in it.
Number of events stored in this file depends upon the CF card capacity. Refer to Table below.
CF CARD CAPACITY
ALARM EVENT NUMBERS
128 MB
250
256 MB
500
512 MB, 1 GB
1000
The alarm history file is cyclic: data in the CF Card will be overwritten when the file is full.
COMMENT HISTORY FILE
Comment history is stored in binary in single data file named ‘73VR.VRM21.’
Like the data file, an empty comment history file is already created at the startup of the 73VR21x. The file size is fixed
regardless of the data volume in it.
The comment history file is cyclic: data in the CF Card will be overwritten when the file is full.
CONTROL FILE
The control file contains the information to manage the data file. It is used to convert the file into compatible format
for use on the 73VR Data Viewer program or into .CSV format.
If this file is deleted, the data file is initialized. When storing the data file in the PC’s hard disk, store also the control file.
PARAMETER FILE
The parameter file contains information about the 73VR21x’s system and pen configurations. The 73VR21x reads
this file at the startup to apply the parameters.
