7
Modbus RTU On-Board communications
POWERXL DG1 SERIES VFD
MN040010EN—September 2016 www.eaton.com
Modbus RTU specifications
Communication board connections
Table 5. Connections
Item
Description
Interface
Data Transfer Method
RS-485, half-duplex
Transfer Cable
Twisted pair (1 pair and shield)
Electrical Isolation
Communications
Table 6. Communications
Item
Description
Modbus RTU
As described in “Modicon Modbus Protocol
Reference Guide”
found at. http.//public.modicon.com/
Baud Rate
9600,19200,38400,57600,115200
Addresses
1 to 247
Connections
The RS-485 communication port is connected via the A and B
terminals on the drives control board.
Figure 7. Terminal wiring
Figure 8. Termination resistor and shielding