Rockwell Automation 1788 NetLinx Media Checker Users Manual - Manual (Page 38)

38 Maintenance
1788-UM002A-US-P – April 2000
Performing a Self-Test
When the MediaChecker is on, it periodically tests some
of its internal circuits. If a problem is detected, the
MediaChecker displays the following message:
aan16f.eps
You can perform a more thorough self-test on DeviceNet,
DH+/RIO, and Ethernet functions as follows:
1. With the MediaChecker off, press and hold
A
while turning the rotary switch to TEST.
2. Press E until “SELF-TEST?” is displayed.
3. Press C or D to select “YES”.
Important: To exit without performing a self-test, either
press A , or ensure that the second line is
displaying “NO” and press E to move to
the next setup selection.
4. Press E to activate the self-test program.
You will be prompted to install the Cable ID. There
are two ways to install the Cable ID, each with
different results:
•
To run a self-test on DeviceNet and DH+/RIO
functions, connect a DB9-to-Mini/Micro male
adapter in series with a Mini/Micro female-to-DB 9
adapter. Use this series combination to connect
between the DB9 connector on the Cable ID and
the DB9 connector on the MediaChecker.