Comtrol DeviceMaster NS-Link - Manual (Page 82)

82 - Troubleshooting and Technical Support DeviceMaster Driver User Guide: 2000595 Rev. A
Sending and Receiving Data (RS-485: 2-Wire)
Sending and
Receiving Data (RS-
485: 2-Wire) This procedure shows how to use Test Terminal (WCom2) to test two RS-485 (2-
wire, half-duplex) ports.
1. Start Test Terminal.
2. Open two ports RS-485 ports. This example uses COM40 and COM41.
Test Terminal will open two windows, note that both ports show Receiving on
the status bar.
3. Right-click both COM windows and remove the check mark for Receive.