3. Diagnosis
3-11
Festo Festo P .BE CP FB13-E-EN en 9910c
Summary of diagnostic bytes
Diagnostic words Several diagnostic words are made available for each bus
slave in the IM 308-C module. The diagnostic words and
their meanings in conjunction with the F esto CP system are
explained below.
Byte
*
Octet
**
Diagnost ic address Diagnostic address + 1 Octet
**
Byte
*
0 1 Station status 1 Station status 2 2 1
2 3 Station status 3 Master address
(Diag. master_Add)
4 3
4 5 Manufacturer identifier
(Ident_number)
High byte F1
H
)
Manufacturer identifier
(Ident_number
Low byte 3C
H
)
6 5
6 7 Header Device-related Diagnosis 1
(summar y of errors)
8 7
8 9 Device-related Diagnosis 2
(error byte CP string 0)
Device-related Diagnosis 3
(error byte CP string 1)
10 9
10 11 Device-related Diagnosis 4
(error byte CP string 2)
Device-related Diagnosis 5
(error byte CP string 3)
12 11
12 13 Device-related Diagnosis 6
(not used)
Device-related Diagnosis 7
(not used)
14 13
heavy
print
*
**
= contents modified by the CP system
=Siemens
= EN50170
Fig. 3/3: Diagnostic words
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