Lenze E94AYCPM Bedienungsanleitung PDF herunterladen (Seite 19)

Lenze · E94AYCPM communication module (PROFIBUS®) · Communication Manual · DMS 12.0 EN · 11/2012 · TD17 19

4Technical data

4.3 Protocol data

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4.3 Protocol data

4.4 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 PROFIBUS network depend on ...

• the processing time in the controller;

• the transmission delay time (baud rate / telegram length);

• the nesting depth of the network.

Processing time in the controller

There are no interdependencies between parameter data and process data.

Area Values

Process data words (PCD) 1 ... 32 words (16 bits/word)

Cyclic parameter data channel (DP-

V0)

4 words

Acyclic parameter data channel (DP-

V1)

Max. 240 bytes

Safety data 4 words

PROFIBUS user data length 1 ... 32 words (process data)

+ 4 words (parameter data or safety data)

Data Processing time

Process data Approx. 4 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 + 20 ms tolerance (typical)

For some codes, the processing time may be longer (see software manual/

online help for the Servo Drive 9400).

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Lenze E94AYCPM Bedienungsanleitung Seite 19