Loopback Test (Rs-232); Sending And Receiving Data (Rs-485: 2-Wire) - Pepperl+Fuchs ICDM-RX/TCP-DB9/RJ45-PM Installation And Configuration Manual

ICDM-RX/TCP Installation and Configuration Guide

Loopback Test (RS-232)

11.4.4.Loopback Test (RS-232)
The Loopback Test tests the modem control (hardware handshaking) signals. It only has meaning in RS-232
mode on serial connector interfaces with full RS-232 signals. If performed under the following conditions, the
test will always fail because full modem control signals are not present:
• RS-422
• RS-485
Use the following steps to run the Loopback Test.
1. If necessary, start Test Terminal (Page 134, Steps 1 through 2).
2. Click Port > Loopback Test.
3. If necessary, attach the loopback plug on the port or ports.
4. Click the Ok button after attaching the loopback plug.
This is a pass fail test and will take a second or two to complete. Repeat for each port that needs testing.
If the Loopback Test and the Send and Receive Test Data tests successfully complete, then the port is
operational as expected.

11.4.5.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.
Note: You will need to connect a straight-through cable between the ports. DB9 Straight-Through Cables
(RS-232/485) on Page 78 or RJ45 Straight-Through Cables (RS-232/485) on Page 81 if you need to
build a cable.
1. In PortVision DX, click Tools >Applications >Test Terminal (WCom2) to start Test Terminal.
2. Open two ports RS-485 ports. This example uses COM12 and COM14.
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