WAGO 750 Series - Process Image Analysis via the;proc Directory

Process Image • 135
Process Image Analysis via the /proc Directory
WAGO-I/O-SYSTEM 750
Linux Fieldbus Coupler
6.6 Process Image Analysis via the /proc Directory
In order to analyze the input and output data while the internal bus driver is
running, it is possible to view and to read out the process image of the relevant
modules via the /proc/driver/kbus/pab file. The start address
Byteoffset.Bitoffset of the individual process image is shown.
Example: cat /proc/driver/kbus/pab
Slot Terminal Output: Input:
Byte.Bit Offset Byte.Bit Offset
8 750-553/000-000 0.0 x.x
9 750-559/000-000 6.0 x.x
---------------------------------------------------------
1 750-4xx x.x 0.0
2 750-4xx x.x 0.4
3 750-4xx x.x 0.6
4 750-4xx x.x 1.0
5 750-4xx x.x 1.2
6 750-4xx x.x 1.4
7 750-4xx x.x 1.6
---------------------------------------------------------
PAB In: 00ffe060 PAB Size: 2040 bytes
PAB Out: 00ffe858 PAB Size: 2040 bytes
Slot Position after the Linux coupler
Terminal Item number
x.x No data in the input process image
PAB IN, PAB OUT Base addresses of the process images