Hart Diagnostic Details; Table 52 - Hart Critical And Non-Critical Diagnostic Details - Honeywell ST 700 User Manual

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
Critical Status (Failure)
(continued)
Revision 4.0
Device Status (HART
Command 48)
Sensor Comm Timeout
Meter body Critical
Failure
Electronic Module Diag
Failure
Meter Body NVM
Corrupt
Electronic Module DAC
Failure
ST 700 Series HART/DE Option User's Manual
Details/Resolutions
Possible causes:
No response from the Sensor
Resolution:
Try replacing the Electronics module. If this
does not fix the problem, replace the Meter
Body.
Possible causes:
Critical failure reported at the Sensor level
Resolution:
Reset the device. If the problem persists,
replace the Meter Body.
Possible causes:
Critical failure reported for the Electronics
Module
Resolution:
Reset the device. If the problem persists,
replace the Electronics Module.
Possible causes:
Meter Body NVM Data has been corrupted.
Resolution:
Reset the device. If the problem persists,
replace the Meter Body.
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.
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