Configuration and operation
4.5 Telecontrol communication (CP 1542SP-1 IRC)
CP 1542SP-1, CP 1542SP-1 IRC, CP 1543SP-1
50 Operating Instructions, 01/2017, C79000-G8976-C426-03
●
Buffer for class 1 / 2 / 3 events
Here, for each of the three event classes you specify the number of events after which
the stored events are sent to the communications partner.
Permitted range: 1 ... 255.
●
Delay time class 1 / 2 / 3 events
Here, for each of the three event classes you specify the maximum time in seconds the
events can be stored in the send buffer before they are sent to the communications
partner.
Permitted range: 0 ... 255.
If you enter 0 (zero), the function is disabled.
You will find details of how the send buffer works (storing and sending events) as well as the
options for transferring data in the section Process image, types of transmission, event
classes, triggers (Page 63).
Transmission settings - IEC
Note
Settings on the master
When configuring the monitoring times t
1
and t
2
make sure that you make the corresponding
settings on the master so that there are no unwanted error messages or connection aborts.
You will find information on the permitted ranges of the functions and defaults in the tooltips
of STEP 7.
●
Max. time between Select and Operate
●
Monitoring time for connection establishment (t
0
●
1
Monitoring time for the acknowledgement of frames sent by the CP by the
communications partner. The monitoring time applies to all frames sent by the CP in I, S
and U format.
If the partner does not send an acknowledgment during the monitoring time, the CP
terminates the connection to the partner.
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