Honeywell 5704 Operating Instructions Manual page 129

MAN0448_Issue 13_ 01-2010
005704-M-5001 A03249
CHAPTER 5 - COMMISSIONING AND
MAINTENANCE INSTRUCTIONS
Error
Code
99
98
97
5.2 Self Test Faults
Note: In addition to some of the following fault codes that may be
displayed, the control card ATTN LED will flash one second on
one second off should a hardware or software fault be detected
on the control card.
Error Code Meaning
RAM Failure.
RAM stores the working values during
operation.
The RAM failure message is displayed if there
are errors in the read/write byte test during
the system start-up or periodicself test.
This is a serious card failure and, as such, the
card needs to be replaced.
ROM Failure.
The ROM stores the channel card program.
The ROM failure message is displayed if
there are errors in the read byte test during
the system start-up or periodic self test.
This is a serious card failure and, as such, the
card needs to be replaced.
EEPROM Failure.
The EEPROM holds the application
configuration data.
The EEPROM failure message is displayed if
there is a checksum difference or it has been
impossible to carry out a checksum test during
start-up or periodic self test.
This is a serious card failure and, as such, the
card needs to be replaced.
5-8
5704 Control System
Software Card Fault latch
Version Status Signal
All Non Yes
Active
All Non Yes
Active
All Non Yes
Active
Yes
Yes
Yes