Technical data

Meaning of the bits for Un-/Sync and Un-/Freeze
bit 2 or 4 bit 3 or 5 Meaning
0 0 No function
0 1 Function is activated
1 0 Function is deactivated
1 1 Function is deactivated.
11.8.4 Special Job "STOP DP polling list processing"
Using the special job "STOP DP polling list processing" with special HDB
A-NR: 209, you can stop the cyclic processing of the DP polling list.
Polling list processing is continued again as soon as a new cycle
checkpoint is sent with HDB SEND 210 or RECEIVE 211.
The following rules apply to sending the special job "STOP DP polling list
processing":
➣
The special job "STOP DP polling list processing" is only effective in the
"cycle-synchronized" DP mode.
➣
The stop job only takes effect at the end of a DP polling list cycle.
➣
Polling list processing is continued by calling the cycle check HDBs
(SEND 210 or RECEIVE 211).
➣
As long as DP polling list processing is in the STOP mode, it is not
possible to send Global_Control commands or to read the diagnostic
list.
➣
When DP polling list processing is resumed with the cycle check HDBs,
the connected DP slaves are assigned new parameters and
reconfigured.
Distributed I/Os (DP) B89060/02
Volume 1 11 - 74