Honeywell HC900 ユーザーズマニュアル
Diagnostics and Troubleshooting - User Interface
136
HC900 Hybrid Controller Installation and User Guide
Revision 5
9/03
Table 30 - Scanner Diagnostics
Diagnostic
Condition
Condition
Number
of
Strobes
of
Strobes
Possible Cause
Scanner Action User
Action
Communication
failure to main-
CPU
failure to main-
CPU
2
The scanner is not receiving any
messages from the main CPU.
messages from the main CPU.
Does no scanning of
modules. Modules
remain in their failsafe
state.
modules. Modules
remain in their failsafe
state.
1. Verify that the jumpers on the
scanner are setup for the
correct rack address.
correct rack address.
2. Check that cable is connected
to expansion rack(C50 CPU
only).
only).
3. 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.
to the hub, proper crossover
cables are used, and that hub
is powered.
4. Cycle power to the rack.
5. Cycle power to the hub.
6. Replace the expansion
rack’s(C50 CPU only) power
supply.
supply.
7. Replace the expansion rack.
8. Replace the expansion rack’s
scanner module.
9. Replace the main CPU.
Ethernet port data
link failure
link failure
2
The communications to the
main CPU is resulting in a lot of
DLL errors.
main CPU is resulting in a lot of
DLL errors.
Does no scanning of
modules. Modules
remain in their failsafe
state.
modules. Modules
remain in their failsafe
state.
1. Verify that the jumpers on the
scanner are setup for the
correct rack address.
correct rack address.
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.
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.
supply.
6. Replace the expansion rack.
7. Replace the expansion rack’s
scanner board.
8. Replace the main CPU.
Ethernet port
hardware failure
hardware failure
2
The power-up test of the
Ethernet controller failed.
Ethernet controller failed.
Does no scanning of
modules. Modules
remain in their failsafe
state.
modules. Modules
remain in their failsafe
state.
Replace scanner module