3.2 Function Modules
3.2.5 Data Logging
3-78
Binary File Format
This example shows how log data that was stored in the binary format appears when it is
opened in a text editor.
Header
The header is given in ASCII characters.
*
These items may not be given depending on the settings in the MPE720. Refer to the following section
for details.
Bit Pattern of Header Information
Register Data
The register data is displayed here. The volume of data depends on the data types of the
registers.
Item
Description
Corresponding Item in MPE720
HeaderSize
Gives the size of the header that is
appended to the file.
−
ScanType
*
The type of scan where the data was
obtained (high-speed scan or low-speed
scan) is displayed.
Sampling period
on the Format Dialog
Box.
ScanTime
*
Gives the data sampling period.
Register
*
Gives the registers specified in the data
settings.
Registered register name
on the For-
mat Dialog Box.
ProgramName
*
Gives the program name specified in the
data settings.
Program
on the Format Dialog Box.
No.
*
Gives the number of the data that was
sampled.
Data No.
on the Format Dialog Box.
DATE/TIME
*
Gives the time down to the seconds
when the data was sampled.
This is a running value from 1970, which
is the lower limit of the calendar setting.
DATE/TIME
on the Format Dialog Box.
Data Type
Data Size
B: bit
2 bytes
W: integer
2 bytes
L: double-length integer
4 bytes
Q: quadruple-length integer
8 bytes
F: single-precision real number
4 bytes
F: double-precision real number
8 bytes
