Table 30 - Scanner Diagnostics - Honeywell HC900 Installation And User Manual

Scanner Diagnostic LED Indication
The scanner uses its LED to communicate diagnostic information. These diagnostics are a subset of the main CPU's
and are listed below.

Table 30 - Scanner Diagnostics

Diagnostic Number
Condition of
Strobes
Ram Failure 1
Rom Failure 1
Invalid 2
configuration
Revision 5
9/03
Table 30 - Scanner Diagnostics
Possible Cause
RAM failed on power-up.
ROM failed on power-up.
The scanner has not been
configured by the main CPU.
HC900 Hybrid Controller Installation and User Guide
Diagnostics and Troubleshooting - User Interface
Scanner Action User Action
Executes an infinite 1. Cycle power
loop that toggles the
2. Replace scanner
LED.
Communications and
3. Replace rack
module scanning are
disabled.
Executes an infinite 1. Cycle power
loop that toggles the
2. Replace scanner
LED.
Communications and
3. Replace rack
module scanning are
disabled.
Does no scanning of 1. Verify that the jumpers on the
modules. Modules scanner are setup for the
remain in their failsafe correct rack address.
state.
2. If a hub is used, check that all
cables are properly connected
to the hub, proper crossover
cables are used, and that hub
is powered.
3. Cycle power to the rack.
4. Cycle power to the hub.
5. Replace the expansion
rack's(C50 CPU only) power
supply.
6. Replace the expansion rack.
7. Replace the main CPU.
8. Replace the expansion rack's
scanner board.
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