Manual VIPA System 300V Chapter 3 Profibus DP
HB130E - IM - Rev. 08/26 3-21
The channel-related diagnostic shows channel errors of modules and
details the identifier-related diagnostic.
The length of the channel-related diagnostic data is fixed at 3 Byte.
The channel-related diagnostic is only executed after the module-related
diagnostic and only if one of the errors of Byte 25 occurs like Bus-init-error,
Bus-QVZ and Bus-error.
Channel-related diagnostic
Byte Bit 7 ... Bit 0
23 Bit 5 ... 0: Identifier number of the module with diagnostic
000000 ... 011111: Identifier number
(Example: plug-in location 1 has the identifier number 0 etc.)
Bit 7 ... 6: Code for channel-related diagnostic
10: Code 10 (fix)
24 Bit 5 ... 0: Number of the channel that announces diagnostic
000000 ... 111111: Channel number
Bit 7 ... 6: In-/Output
01: Input
10: Output
11: In-/Output
25 Bit 4 ... 0: Error code
10101: Bus-Init-Error: Writing of parameters to the according
module failed.
10110: Bus-QVZ: Read/Write error at the backplane bus
occured
10111: Bus-Error: The number of the modules at the backplane
bus is not equal to the projected modules.
Bit 7 ... 5: Channel type
101: Word (fix)
Channel-related
diagnostic data
IM 353-1DP00