Setting Up The Com 2 Port For Rs-232/Rs-485 - ABB COM600 Station Automation Series User Manual

COM600 3.2
2.4.3.
24
COM600 Station Automation Series
User's Guide
Figure 2.4.2-1 Mounting diagram of the COM600 computer
For mechanical properties of the COM600 computer, see 2.4.1, Mechanical properties.

Setting up the COM 2 port for RS-232/RS-485

By default the COM2 port is configured to RS-232 mode. The mode of the port (RS-
232/RS-485) can be changed via the computer's BIOS setup.
COM2 port in RS-485 mode can only be used with Modbus
protocol. For more information on configuration settings, see
Modbus Master User's Guide.
To change the mode of the port:
1. Connect a local keyboard and display to the COM600 computer.
2. Restart the computer and press the Del key during restart to access the BIOS setup.
3. Select Integrated Peripherals from the main SETUP menu. Use the cursor keys
for moving and enter key for selection.
4. Select SuperIO Device from the next menu.
1MRS756125
COM600_mounting.jpg