Technical data
68  •  Feldbus Coupler 750-344 / -345 
 Diagnostics 
 WAGO-I/O-SYSTEM 750 
 INTERBUS 
3.1.6.2.3 Diagnostics Word in the Process Input Image 
The diagnostics input word (first work in the process input image) has the 
following functions. 
Data bit  Meaning for module error  Meaning for bus coupler error 
D15 
D14 
D13 
Type of error for identifying the error source 
D12 
D11 
D10 
D9 
Error code for identifying the type 
of error 
D8 
Blink code 
D7 
D6 
Channel number 0..7 for 
identifying the location of the error
D5 
D4 
D3 
D2 
D1 
D0 
Module number 0..63 for 
identifying the location of the error
Blink argument 
The error types are explained in the following table: 
Error type  Meaning 
000
B
 No error 
001
B
 Reserved 
010
B
  Bus coupler error message 
011
B
 Reserved 
100
B
  Module error message 
101
B
 Reserved 
110
B
 Reserved 
111
B
 Reserved 










