Sending And Receiving Test Data (Rs-232/422 And Rs-485: 4-Wire); Loopback Test (Rs-232) - Pepperl+Fuchs ICDM-RX/TCP Manual

ICDM-RX/TCP (DeviceMaster) and ICRPC (RocketPort EXPRESS)
Windows Driver Installation

7.5.3. Sending and Receiving Test Data (RS-232/422 and RS-485: 4-Wire)

You can use this procedure to send and receive test data through the RS-232/422/485 (4-wire, full-duplex) port
or ports that you want to test.
1. If you have not done so, open the port(s) to test.
2. Install the loopback plug onto the port (or ports) that to test.
See the ICDM-RX/TCP Installation and Configuration Manual or ICRPC and ICRPB (RocketPort
EXPRESS) Hardware Installation Manual, if you need to build loopback plugs.
3. Select Port > Send and Receive Test Data.
You should see the alphabet scrolling across the
port. If so, then the port installed properly and is
operational.
Note: If you left Port Monitor running, it should
show data sent and received and show
the average data throughput on the port.
4. Select Port > Send and Receive Test Data to
stop the scrolling data.
5. You can go to the next procedure to run the
Loopback Test on Page 88 if this is an RS-232
port.
If this test successfully completed, then the port is
operational as expected.
Note: Do NOT forget to restart the communications
application.

7.5.4. 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
• RJ11 connectors
Use the following steps to run the Loopback Test.
1. If necessary, start Test Terminal.
2. Click Port > Loopback Test.
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.
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