VEGA WHA-GW-WIRELESSHART GATEWAY - Manual (Page 36)

WHA-GW-*
Commissioning
22
1981
2011
-0
7
36
4.4 Connecting via RS485
Once the Gateway has been connected to the RS485 bus (see chapter 3.4), you may
connect the RS485 bus to your PC. This can be done by using a RS485–RS232 converter
or a RS485–USB converter.
Connecting via RS485
1. Connect the RS485–RS232 converter or the RS485–USB converter to your PC.
2. To find out to which COM port the converter is connected, open the Windows
®
device
manager (Windows XP: Start > Settings > Control Panel > System > Hardware > Device
Manager).
3. Under "Ports (COM & LPT)" you should see the converter and the COM port assigned
to it (see on page 36). You will need the COM port number later on.
View of the USB converter in the Windows
®
device manager
Note!
The usage of an approved RS-485 converter is recommended for faster configuration and
more reliable high-speed operation. In addition, the usage of a galvanically isolated RS-
485 converter is strongly recommended for permanent installations.