Technical data

Structure of the job field "DP diagnostic list"
Structure of the Acknowledgment field for "DP diagnostic list"
1st byte
2nd byte
3rd byte
4th byte
04
01
01
Length of the job field in bytes
Diagnostics request
DP station diagnostics list
not occupied with this function
Job type
Diagnostics type
Fig. 11.23 Structure of the Job Field "DP Diagnostic List"
1st byte
2nd byte
3rd byte
18th byte
Length in bytes
Acknowledgment
Diagnostics list
:
:
:
:
- with negative ack. -> 2
- with positive ack. -> 18
DP station diagnostics list for
stations 1 - 125
00 hex ok
01 hex syntax error in job field
02 hex error in HDB handling
0B hex CP job cannot be executed, since the DP polling
list processing is in the STOP mode
Fig. 11.24 Structure of the Acknowledgment for "DP Diagnostic List"
Distributed I/Os (DP) B89060/02
Volume 1 11 - 50