Cyclic Communication; Telegrams And Process Data - Siemens sinamics dcp Operating Instructions Manual

Application class 1 (standard drive)
In the most basic case, the drive is controlled via a speed setpoint by means of
PROFIBUS/PROFINET. In this case, speed control is fully handled in the drive controller.
Typical application examples include simple frequency converters for controlling pumps and
fans.
Image 8-14
8.4.3

Cyclic communication

Cyclic communication is used to exchange time-critical process data.
8.4.3.1

Telegrams and process data

When a telegram is selected via p0922, the drive unit (Control Unit) process data that is
transferred is determined.
From the perspective of the drive unit, the received process data represents the receive
words and the process data to be sent the send words.
The receive and send words comprise the following elements:
● Receive words: Control words or setpoints
● Send words: Status words or actual values
SINAMICS DCP
Operating Instructions, 05/2016, A5E34382853K
Application class 1
8.4 Communication according to PROFIdrive
Operation
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