Extended Channel Diagnostics; Table 172: "Extchanneldiagnosisdata" Instance Structure - WAGO 750-370 Manual

204 Appendix
14.5.2

Extended Channel Diagnostics

The fieldbus coupler uses the extended channel diagnostics to signal internal bus,
configuration and parameter setting faults. According to the PROFINET IO
standard, extended fault information must be expressed according to the
manufacturer specifications.
The fault type (UserstructureIdentifier) has the value for the extended channel
diagnostics (0x8002).
The structure for the data set (see ExtChannelDiagnosisData) has 12 bytes and is
composed of as follows:

Table 172: "ExtChannelDiagnosisData" Instance Structure

Byte-
Date typE
offset
0 / 1 WORD
2 / 3 WORD
750-370 PROFINET IO Fieldbus Coupler
Description
Diagnostic instance (ChannelNumber)
0x0000
... Channel 0 ... 15
0x000F
0x8000 Submodule
Channel-/Submodule properties (ChannelProperties)
7 0
2 ... 2 Type
0x00 Instance = Submodule
0x01 1 bit
0x02 2 bit
0x03 4 bit
0x04 8 bit
0x05 16 bit
0x06 32 bit
0x07 64 bit
0x08
... Reserved
0xFF
8
2 no collective channel error = '0'
10 9
2 , 2 Maintenance request = '00'
12 11
2 , 2 Pending diagnosis = '01'
15
2 ...
Channel type
13
2
'000' Manufacturer specific
'001' Input
'010' Output
'011' Input/Output
'100'
... reserved
'111'
WAGO-I/O-System 750
Manual
Version 2.0.0