Lenze 2131IB - Manual (Page 11)

Technical data
3-3 BA2131EN
3.6 Communication times
The communication times depend on:
l the data transfer time
l the processing time in the controller
3.6.1 Data-transfer time
The data-transfer time depends on:
l the baud rate
l the user-data length
You will find more information about the data-transfer time in the documentation for your host
system.
3.6.2 Processing time in the controller
Processing time 820X
For the 820X series several processing steps are required, which are processed cyclically.
A processing cycle consists of:
l Writing of control word or setpoint, if the value has changed
l Alternating reading of status word and actual value
l Processing of parameter access if there is a service
If the time tolerances caused by the cyclic reading of the status word/actual value are too large, the
alternating reading of the status word and the actual value can be suppressed. This is controlled by
the bit 15 (PE inhibit) of the DRIVECOM control word:
l PE inhibit = 0:
Status and actual-value update active
l PE inhibit = 1:
Status and actual value update not active
A suppression of the processing of parameter access is not necessary, since this is controlled by
the user.
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