Cyclic Communication - Siemens Sinamics S120 Function Manual

Telegram
(p0922 = x)
220 Speed setpoint, 32 bit for metal industry
352 Speed setpoint, 16 bit, PCS7
370 Infeed
371 Infeed, metal industry
390 Control Unit with digital inputs/outputs
391 Control Unit with digital inputs/outputs and 2 measuring
probes
392 Control Unit with digital inputs/outputs and 6 measuring
probes
393 Control Unit with digital inputs/outputs, 8 probes and
analog input
394 Control Unit with digital inputs/outputs
395 Control Unit with digital inputs/outputs and 16 probes
999 Free telegrams
10.1.2

Cyclic communication

Cyclic communication is used to exchange time-critical process data.
10.1.2.1 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
PROFIdrive telegrams
1. Standard telegrams
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Description
The standard telegrams are structured in accordance with the PROFIdrive profile. The
internal process data links are set up automatically in accordance with the telegram
number setting.
10.1 Communication according to PROFIdrive
Class 1 Class 2
x
x x
x x
x
x x
x x
x x
x x
x x
x x
x x
Communication
Class 3 Class 4
x x
x x
x x
x x
x x
x x
x x
x x
509