6-15
Communications Processor CP 541
EWA 4NEB 812 6188-02
6.3.1
Structure of the Diagnosis
The diagnostic message contains 8 bytes of data.
The structure of the diagnostic message complies with the specifications of
the PROFIBUS DP standard. The structure of the entire diagnosis is repre-
sented in Table 6-7.
Table 6-7
Structure of the Diagnostic Message
Byte
Content
0
Station status 1
1
Station status 2
2
Station status 3
3
Station number DP master
4
Manufacturer ID (for CP 541: 001FH)
5
Manufacturer ID (for CP 541: 001FH)
6
Length of the device-related diagnosis in bytes inc. header (al-
ways 02H for CP 541)
7
Device-related diagnosis
The diagnostic message of the CP 541 contains exactly one byte of device-
related diagnostic data.
Size
Structure
Diagnostic Data
Diagnostics and Error Handling