Siemens SINAMICS S120 Series - Example: Telegram Structure for Cyclic Data Transmission

Communication via PROFIBUS DP
4.1 General information about PROFIBUS
Communication
82 Function Manual, 12/2018, 6SL3097-5BD00-0BP0
4.1.2 Example: telegram structure for cyclic data transmission
Task
The drive system comprises the following drive objects:
● Control Unit (CU_S)
● Active Infeed (A_INF)
● SERVO 1 (comprises a Single Motor Module and other components)
● SERVO 2 (comprises a Double Motor Module terminal X1 and other components)
● SERVO 3 (comprises a Double Motor Module terminal X2 and other components)
● Terminal Board 30 (TB30)
The process data is to be exchanged between the drive objects and the higher-level
automation system.
Telegrams to be used:
● Telegram 370 for Active Infeed
● Standard telegram 6 for SERVO
● User-defined for Terminal Board 30 for the three SERVO drives
Component and telegram structure
The predefined component structure results in the telegram structure shown in the following
diagram.
Figure 4-1 Component and telegram structure
You can check and change the sequence of the telegrams via p0978[0...24].