Lenze E84DGFCR - Manual (Page 18)

Communication manual 8400 motec PROFINET
Technical data
Protocol data
18
L
EDS84DMOTPNET EN 2.0 - 11/2011
4.2 Protocol data
4.3 Communication time
The communication time is the time between the start of a request and the arrival of the
corresponding response.
The communication times in a PROFINET network depend on the ...
 Processing time inside the controller;
 Transmission delay time (baud rate / telegram length);
 Nesting depth of the network.
Processing time inside the controller
There are no interdependencies between parameter data and process data.
Area Values
Process data words slot 1 1 ... 8 process data words (max. 16 bytes)
Process data words slot 2
(for digital/analog inputs)
Optionally 0, 1, or 2 process data words (max. 4 bytes)
Process input data AI/DI (Slot2) ( 44)
Acyclic parameter channel Limited by the PROFINET frame size
Data Processing time
Process data Approx. 2 ms
+ 0 ... 1 ms
+ 1 ... x ms
update cycle
processing time in the module
application task runtime of the technology application used
(tolerance)
Parameter data Approx. 30 ms + a tolerance of 20 ms (typically)
• Some codes may require a longer processing time (see software manual/
»Engineer« online help for Inverter Drive 8400 motec).