INVT Goodrive 35 Series Operation Manual page 270

inverters
Goodrive35
Fig 10-4 Chrysanthemum connection applications
Figure 5 is the star connection. Terminal resistor should be connected to the two devices
which have the longest distance. (1# and 15#device)
It is recommended to use shield cables in multiple connection. The basic parameter of the
devices, such as baud rate and digital check bit in RS485 should be the same and there
should be no repeated address.
10.3.2 RTU mode
10.3.2.1 RTU communication frame format
If the controller is set to communicate by RTU mode in Modbus network every 8bit byte in
the message includes two 4Bit hex characters. Compared with ACSII mode, this mode can
Fig 10-3 Chrysanthemum connection
Fig 10-5 star connection
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Communication protocol