Technical data

DP Group messages with HDB Receive 202 ANZW
The DP ANZW bits 8-11 of the HDB Receive job 202 create the following
DP group message:
To update the group messages bits 8 - 11 in the ANZW of the HDB job
202, it is sufficient to call HDB-CONTROL A-NR: 202.
Bit 11 10 9 8
of ANZW/A-NR: 202
0 = no error, all the configured DP slaves are in
the data transfer phase
1= at least one DP slave is not in the data
transfer phase
Cause of error, what to do:
To find out which slave(s) is affected, you must
read out the DP station list using
HDB-RECEIVE A-NR: 202.
Cause of error, what to do:
use the special service "DP station diagnostic list"
HTB-A-NR: 209, to read out the diagnostic list
Using the special service "Read single DP slave diagnostic
data", HTB-A-NR: 209, it is possible to obtain an accurate
error analysis for every slave.
Possible causes of a group message are;
- DP slave, does not reply on the bus (not connected,
switched off)
0 = cyclic global control job not sent
1= cyclic global control job sent
0 = there are no new diagnostic data for DP slave
1= there are diagnostic data for a DP slave
0 = no timeout occurred during processing of the DP polling list
1= a timeout occurred during processing of the DP polling list
The selected monitoring time for processing the polling
list was exceeded.
Possible causes of this error message:
- problems on the bus
- delayed DP polling list processing due to parallel
processing of other acyclic services on the CP.
To find out which slave(s) is affected, you must
Fig. 11.21 DP Group Messages Using the HDB Receive 202 ANZW
Distributed I/Os (DP) B89060/02
Volume 1 11 - 46