Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL - Manual (Page 46)

3–23 Front Panel Editor
Publication 2706–816
To perform the Com Ports Test
This tests the RS-232 port. The RIO port (if present) is tested in the
Communication Card test.
1. Attach a 9–pin Sub-D loopback test connector to the RS-232 port:
Pinout of Test Connector
1
2
3
4
5
6
7
8
9
nc
nc
nc
nc
nc
Jumper
Jumper
RS-232 port
2. Highlight Com Ports Test and press to run the test.
The result of the test is displayed at once:
Comm Ports Test
Test Passed
If the test fails, see Page B–4.
3. Press the Ack key to return to the Self Tests submenu.
4. Press Ack again to exit to the FPE menu.
To perform the Display Test
This test lights every pixel in an alternating pattern at two brightness
levels. It verifies that each pixel is working properly. In 421F
terminals, it also tests all the LEDs.
1. Highlight Display Test and press to run the test.
The pixels in the display and (if present) the LEDs on the front
panel are tested for a few seconds, then the result of the test is
displayed.
Display Test
Test Passed
If the test fails, see Page B–4.