Mounting; Technical Data - ABB RVT Serie Instrucciones De Instalación Y De Funcionamiento

4.3 Mounting

The Modbus adapter is specially shaped to fit the controller case and to plug into its
dedicated connectors without any other additional fixation part than just a screw.
3D view
Controller optical
transceiver

4.4 Technical data

- Operating ambient temperature: -20 to +70 °C
- Number of nodes (Tx drive): 32 max
- Rx loading: receiver impedance is 1 unit load per RS485 Modbus adapter
- Size of the Link: 247 stations including repeaters (31 stations and 1 repeater per
segment)
- Medium: Shielded, twisted pair RS485 cable (Belden 9841 typical)
- Maximum Bus Length: 1200 m
Topology: Multi-drop
-
Serial Communication Type: Asynchronous, 2 wires half Duplex
-
- Baud rate: 110, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 bauds
selectable by the user (can be adjusted through the controller menus)
10 RS485 Modbus adapter ç RS485
Fixing screw
57 mm
TX – RX led's
35 mm
48 mm
Controller power
supply connector
Resistor
Termination switch
Extra depth to
the controller
max. 10 mm
3D view inserted in back plate
Screwed terminal for
bus cable connection