4 Fault Isolation
4.3 Fault Isolation Concepts
R688
HPM High-Performance Process Manager Service
319
December 2020
Honeywell
Table 58 Communications and Control Processor Hard Failure Codes
Error
Code
CPU
Failure Mnemonic
Description
Corrective Action
(See Table 57)
0064
Both
OPT_EXC
Unexpected I/O Link card interrupt
7, 6,11, 1
0065
Comm
PR_CLRR
UTBC Private RAM initialization test
failure
6
0066
Comm
BADFILE
Bad File address/parity jumper setting
5, 6, 11
0067
Comm
BADSLOT
Bad Slot address/parity setting
6, 11
0068
Comm
IOL_PCHK
I/O Link RAM parity circuitry test
failure
7, 6, 1
0069
Comm
IOL_ITMO
I/O Link timeout during transition to
Idle
7, 6, 1
006A
Comm
IOL_IDLE
I/O Link failed to transition to Idle
7, 6, 1
006B
Comm
OL_RTMO
I/O Link timeout during transition to
Run
7, 6, 1
006C
Comm
IOL_RUN
I/O Link failed to transition to Run
7, 6, 1
006D
Both
REFRESH
Global DRAM refresh circuitry failure
6, 1
006E
Both
Pl_CKSM
Bad software personality checksum
2, 6, 1
006F
Both
BE_UNKN
Access to non-existent memory error
2, 6, 1
0070
Both
BERR_SRC
Unacknowledged BERR Source bits
set
2, 6, 1
0071
Comm
EE_COM
Comm/Control serial EEPROM write
test failure
6
0072
Comm
EE_IOL
I/O Link card serial EEPROM write test
failure
7, 6, 11
0073
Comm
EE_UCN
UCN l/F card serial EEPROM write
test failure
8, 6, 11
0074
Control
RT_IF
RTBC host interface test failure
6, 1
0075
Control
RT_LPBK
RTBC internal loopback test failure
9, 6, 1
0076
Control
RT_RXI
RTBC RX internal loopback test failure
9, 6, 1
0077
Control
RT_TXI
RTBC TX internal loopback test failure
9, 6, 1
0078
Control
RT_INT
RTBC interrupt test failure
6, 1
0079
Control
RT_UNRN
Unused on HPM Platform
1
007A
Control
RT_BERR
RTBC bus/address error
2, 6, 1
007B
Control
RT_FD
RTBC corrupted frame descriptor
2, 1
007C
Control
RT_OVRN
RTBC overrun error
2, 6, 1
007D
Control
RT_BDPE
RTBC Buffer Descriptor pool empty
2, 1
007E
Control
RT_FDPE
RTBC Frame Descriptor pool empty
2, 1
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