Honeywell ST 700 - Diagnostics

Revision 4.0 ST 700 Series HART/DE Option User’s Manual Page 163
19.2 HART Diagnostic Details
Table 29Table 52 lists and describes the HART critical and non-critical HART diagnostic details.
Table 52 – HART Critical and Non-Critical Diagnostic Details
Status Type
Device Status (HART
Command 48)
Details/Resolutions
Critical Status (Failure)
(continued)
Sensor Comm Timeout
Possible causes:
No response from the Sensor
Resolution:
Try replacing the Electronics module. If this
does not fix the problem, replace the Meter
Body.
Meter body Critical
Failure
Possible causes:
Critical failure reported at the Sensor level
Resolution:
Reset the device. If the problem persists,
replace the Meter Body.
Electronic Module Diag
Failure
Possible causes:
Critical failure reported for the Electronics
Module
Resolution:
Reset the device. If the problem persists,
replace the Electronics Module.
Meter Body NVM
Corrupt
Possible causes:
Meter Body NVM Data has been corrupted.
Resolution:
Reset the device. If the problem persists,
replace the Meter Body.
Electronic Module DAC
Failure
Possible causes:
The Electronics Module has failed. This is
due to one or more of the following DAC
failure conditions:
 The Electronics Module board
temperature is above 140C
 Under-current or Over-current Status
 Packet Error, SPI Fault or Control
Word Write Fault
Resolution:
Verify the environment temperature is within
spec. Reset the device. If problem persists,
replace the Electronics Module.