Honeywell SLG 700 User Manual page 68

Name (DTM/DD)
Communication Board
Vcc ( 3.3 ) Failure
RAM CRC Failure
RAM Walk Test Failure
ROM Failure
Page 60
Description (Cause)
Communication board power supply is
bad.
SIL diagnostic failure. Checksum of
critical parameters stored in RAM has
failed.
Communication board RAM Failure.
Communication board ROM Failure.
SLG 700 Series HART Option User's Manual
Resolution (Steps to take)
Power cycle the device. If problem
persist, Check if there are critical
faults related to Power Accumulator
module. If power Accumulator faults
are noticed replace the Sensor
housing and if still problem persists
replace the Terminal block assembly.
If problem continue replace the
Communication module.
Power cycle the device. If the problem
persists after power cycle then RAM
might be damaged so need to replace
Communication module.
Power cycle the device. If the problem
persists after power cycle then RAM
might be damaged so need to replace
Communication module. Before
replacing the Communication module
ensure that the device is operating in
environment which falls under the
specifications as mentioned in SLG
700 Transmitter User's Manual, #34-
SL-25-11.
Power cycle the device. If the problem
persists after power cycle then RAM
might be damaged so need to replace
Communication module. Before
replacing the Communication module
ensure that the device is operating in
environment which falls under the
specifications as mentioned in the
SLG 700 Transmitter User's Manual,
Document #34-SL-25-11.
Revision 5