Honeywell SLG 700 User Manual page 72

Electronic Module
Critical Failure 2
DAC SPI Interface
Failure
DAC Packet Error
DAC Over Current
DAC Under Current
DAC Temperature
Above 140 °C
DAC Control Word
Write Fault
Page 64
This is a roll-up status bit that is set
when any of the following critical status
conditions are present:

DAC SPI Interface Failure

DAC Packet Error

DAC Over Current

DAC Under Current

DAC Temperature Above 140 °C

DAC Control Word Write Fault
DAC SPI Interface Failure.
Packet Error. DAC or microcontroller
chip may be damaged
DAC Over Current. The loop current
value is greater than actual required
value. This might be due to some
component is damaged and taking
more current than expected.
DAC Under Current. The loop current
value is below the actual required
value.
The board temperature is high
Control Word Write Fault. DAC or
microcontroller chip may be damaged.
SLG 700 Series HART Option User's Manual
Refer to each condition later in this
table.
Power cycle the device. Check the
power supply and loop resistance are
within specifications. If they are, then
replace the Communication module.
Check the power supply and loop
resistance are within spec. If they are,
then replace the Communication
module.
Power cycle the device. If problem
persist, replace the Communication
module or sensing assembly or
terminal block assembly.
Power cycle the device. If problem
persist, replace the Communication
module.
Verify the environment is within the
operating specification of GWR
transmitter. If it is, then replace the
Communication module.
Power cycle the device. If problem
persist, replace the Communication
module.
Revision 5