What is the [MyConfig].scn file ?
The scan file, [MyConfig].scn, contains the raw data communicated between the Data Collection engine and the PLC driver. By default, only alarm data packets are logged, but if you enable the Start with extended logging option in the System Configuration program, all data packets will be written in this file.
What it contains
The file contains a list of scan records showing the following information:
Date/time stamp
Data type
Driver and node ID
PLC address (data group and word offset)
Packet data received from the driver
Note: You can control what you want to view in the [MyConfig].scn file by using the Prscan program (see below).
File location and size
The file is saved in the configuration’s report folder. Dependent on whether you have enabled the Start with extended logging option in the System Configuration program, the file is saved as follows.
When disabled, the size of [MyConfig].scn will be max. 1 MB. When enabled, its size is unlimited.
7 backup versions of the [MyConfig].scn file will be saved. The backup file is saved either at midnight or when its size is 1 MB. The files are named [MyConfig].scx, where x is a number between 0 and 6.
Using the Prscan program
You must use the Prscan.exe program located in the [IGSS InstallPath]\Gss folder to generate a readable output. The [MyConfig].scn file itself is binary.
Open a DOS prompt and type prscan to view the parameters available.