Honeywell Series 8 I/O - Table 67 IOM Hard Failures

13. Series 8 I/O Alarms and Failures
13.4. Getting further assistance
290 Series 8 I/O User's Guide R500
Honeywell April 2017
The following codes can appear for the IOMLHFSTA and IOMLHFSTB parameters.
Table 67 IOM hard failures
Code
Name
Cause/description
Anal
og
Inpu
t
Anal
og
Out
put
Digit
al
Inpu
t
Digit
al
Out
put
TC/RTD
00
UNKNOWN
Unknown failure.
X
X
X
X
X
01
POWERDOWN
IOM was powered down or
a loss of 24v power to the
IOM was detected
X
X
X
X
X
02
INVPRGEXEC
Invalid program execution
X
X
X
X
X
04
RAMCNTERR
RAM contents diagnostics
failed
X
X
X
X
X
05
RAMADRERR
RAM address diagnostics
failed
X
X
X
X
X
06
DPAERROR
IOM was changed while
the IOM is powered
X
X
X
X
X
09
IOLJABBER
IOL jabber circuit fired
X
X
X
X
X
11
BADPGJMP
Illegal value case control
in the IOM firmware
X
X
X
X
X
17
DMT_TMOUT
Dead man cell timer
expired. IOM firmware
task scheduling corrupted.
X
X
X
X
X
25
OPCNTRLHW
FAIL
Output control hardware
failure
X
X
26
AOOTPTMUX
FAIL
Analog Output output
control MUX failure
X
27
ASCRCFAIL
Flash contents diagnostics
failed
X
X
X
X
X
31
STCKOVRUN
IOM firmware stack
overrun
X
X
X
X
X
32
WDTTIMEOUT
IOM firmware watchdog
timeout
X
X
X
X
X