Honeywell scheda di rete HC900 Manuale

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228 Pagine Italiano

Honeywell scheda di rete HC900
Diagnostics and Troubleshooting - User Interface
122 HC900 Hybrid Controller Installation and User Guide Revision 5
9/03
Table 27 - Controller Module Diagnostics
OI Screen
Item
OI Screen
Item Value
Number of
LED
Strobes
Possible Cause Control File Action User Action
INVALID
CONFIG.
2 A configuration that
exceeds the loop
capacity of the
controller was
downloaded or an
invalid configuration
exists.
An empty database is
created.
Download a valid
configuration.
SWITCH
FAULT
2 A failure is detected in
the switch reading.
1. All control blocks stop
running
2. All I/O scanning
ceases. This forces the
modules into failsafe.
Replace CPU.
SYSTEM NO MASTER
PORT
2 There are slave
blocks in the
configuration, and no
communication port
configured as a
Modbus master.
1. MSTRFAIL pins on
ASYS and FSYS
blocks turn on.
2. All Modbus slave and
Modbus read blocks
freeze their output pins
to the last value.
3. All slave blocks have
their BAD COMM pin
on.
4. All slave blocks have
their NO SCAN pin on.
5. IN SCAN STATUS is
set to NO for all slaves.
6. COMM STATUS is set
to BAD for all slaves in
the function block
diagram.
7. Statistical counters for
all slaves are 0.
1. Configure one of the
ports as a master.
2. Download a
configuration that
has no slave blocks.
CPU GOOD N/A N/A N/A N/A
WATCHDOG 3 Watchdog reset
resulting from
software failure
1. Associated rack
monitor block’s RACK
OK pin is turned off.
2. ASYS block’s HW OK
pin is turned off.
1. Force a cold start.
2. Upgrade control file
software.
3. Replace CPU board.
4. Contact Honeywell
Personnel.
PREFETCH
ABORT
3 CPU failed when
attempting to fetch an
instruction from the
prefetch register.
1. Controller performs a
restart
2. Associated rack
monitor block’s RACK
OK pin is turned off.
3. ASYS block’s HW OK
pin is turned off.
1. Force a cold start.
2. Isolate system from
noise and force a
cold start.
3. Replace CPU board.
ADDRESS
ERROR
3 The reserved
exception occurred for
an unknown reason.
See PREFETCH
ABORT.
1. Force a cold start.
2. Isolate system from
noise and force a
cold start.
3. Replace CPU board.
UNDEFINE
ERROR
3 Bad Instruction
Detected
See PREFETCH
ABORT
See PREFETCH
Abort
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