Cyclic Communication; Telegrams And Process Data - Siemens Sinamics S110 Function Manual

Communication PROFIBUS DP
9.1 Communication according to PROFIdrive
Selection of telegrams as a function of the application class
The telegrams listed in the table below (see also chapter "Telegrams and process data") can
be used in the following application classes:
Table 9- 2 Selection of telegrams as a function of the application class
Telegram
(p0922 = x)
1 Speed setpoint, 16 bit
2 Speed setpoint, 32 bit
3 Speed setpoint, 32 bit with 1 position encoder
4 Speed setpoint, 32 bit with 2 position encoders
7 Positioning, telegram 7 (basic positioner)
9 Positioning, telegram 9 (basic positioner with direct input)
102 Speed setpoint, 32 bit with 1 position encoder and torque
reduction
103 Speed setpoint, 32 bit with 2 position encoders and torque
reduction
110 Basic positioner with MDI, override and XIST_A
111 Basic positioner in MDI mode
390 Control Unit with digital inputs/outputs
391 Control Unit with digital inputs/outputs and 2 measuring
probes
999 Free telegrams
9.1.3

Cyclic communication

Cyclic communication is used to exchange time-critical process data.
9.1.3.1

Telegrams and process data

General information
The selection of a telegram via p0922 determines which data on the drive unit side (Control
Unit) will be transferred.
From the perspective of the drive unit, the received process data comprises 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
388
Description Class 1 Class 2
x x
x x
x
x
x
x
x
x x x
x x x
x x x
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
Class 3 Class 4
x
x
x
x
x
x
x
Drive functions