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6.3.5.4
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.
Figure 6-17
The data area of the telegram is structured according to the mapping tables.
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
Modbus with delay times
Advanced commissioning
6.3 Drive control
247
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