Example: Telegram Structure For Cyclic Data Transmission - Siemens SINAMICS S120 Installation And Start-Up Manual

Communication via PROFIBUS
General information about PROFIBUS
4.1.2

Example: Telegram structure for cyclic data transmission

Task
The drive system comprises the following components and drive objects:
S Active Line Module
S Single Motor Module
S Double Motor Module 1
S Double Motor Module 2
S Control Unit with Terminal Board 30 (TB30)
The process data for all of these components is to be exchanged with the
higher-level automation system.
S Telegrams to be used:
– Telegram 370 for Active Line Module
– Standard telegram 6 for Motor Modules
– User defined for Terminal Board 30
Component and telegram structure
The predefined component structure results in the telegram structure shown in the
following diagram.
Component structure
Telegram structure
Fig. 4-2
The sequence of components/objects can be checked using p0978[0...15].
4-80
Control
1
Active
Header
Line
Module
Component and telegram structure
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
A_INF
SERVO
SERVO
SERVO
TB30
Unit
Active Single
5
Line Motor
Module Module
Terminal
Board
30
1
2 3 4
Double Double
Single
Motor Motor
Motor
Module Module
Module
1 2
E Siemens AG, 2004. All rights reserved
Double
Motor
Module
1 – 2
2 3 4
5
Terminal
Board Trailer
30
profibus_bsp_kompo_telegr .vsd