1 Publication 1747-UM006B-EN-P - June 2003
Chapter
7
Troubleshooting
This chapter presents status display information during operational
and fault conditions.
The 1747-ASB module has two LEDs and a status display. These LEDs
and status display are used to indicate operating status and error
conditions while the module is operating.
Troubleshooting
Introduction
There are two types of errors: major and minor. A major error is
indicated by a constant red Fault LED. This type of error is usually
associated with the 1747-ASB module. A minor error is indicated by a
flashing red Fault LED. This type of error is usually associated with a
configuration error.
IMPORTANT
The 1747-ASB status displays are scanned one at a
time at a high rate of speed by the 1747-ASB module.
Visually it appears as if the displays are all on at the
same time. If the status display is flickering
pronouncedly, the signal integrity on the RIO link
has been compromised by environmental noise,
improper termination, and/or improper cable
installation. This compromise results in a drop in the
scan rate of the 1747-ASB module displays.
ADAPTER
COMM FAULT
STATUS
Green COMM LED
RED COMM LED
Status Display
indicated a unique
alphanumeric pattern.
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