Siemens SINAMICS G120XA - Modbus RTU Telegram; Modbus with Delay Times

6.2.3.4 Modbus RTU telegram
Description
For Modbus, there is precisely one master and up to 247 slaves. The master always starts the
communication. Slaves send data when requested to do so by the master. Slave-to-slave
communication is not possible. The converter always operates as slave.
The following figure shows the structure of a Modbus RTU telegram.
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Figure 6-7 Modbus with delay times
The data area of the telegram is structured according to the mapping tables.
Advanced commissioning
6.2 Drive control
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB 153