Difference Between Real And Expected Configuration; Table 178: Initial Structure "Modulediffblock - WAGO 750-370 Manual

210 Appendix
14.5.3

Difference between Real and Expected Configuration

The fieldbus coupler provides diagnostic information in the event of module
differences in the form of a "ModuleDiffBlock" when there are deviations
between the module/submodule configuration of the IO controller and the IO
modules actually connected.
The "BlockType" in the head structure of the data set corresponds to the value for
module differences (0x8104). The length gives information on the differences
between the configured and connected modules/submodules.
The "ModuleDiffBlock" is initiated with the following head structure.

Table 178: Initial Structure "ModuleDiffBlock"

Byte
Data type
offset
0 / 1 WORD
2 / 3
DWORD
4 / 5
6 / 7 WORD
Description
0x00 0x01 Number of available APIs = 1
0x00 0x00
API (Application Process Instance) = 0
0x00 0x00
Number of slots with differences between real and
expected configuration
Depends on the amount of following entries
WAGO-I/O-System 750
750-370 PROFINET IO Fieldbus Coupler
Manual
Version 2.0.0