Effect of HART error conditions on diagnostic parameters (Classic I/O)

This section lists the effect of HART error conditions on DeltaV Diagnostic parameters. For ease of use the information is organized into two tables. This table lists the status returned to the following Diagnostics parameters as a result of HART error conditions:

COLD_START
CONFIG_CHANGED
DEV_CFG_MISMATCH
DEV_MALFUNC
HINTEG
MORE_STATUS
NO_COMM

The following table lists the status returned to OINTEG, NPV_PAST_LIM, PV_FIXED,PV_PAST_LIM,PV_SAT

Table: Effect of HART Error Conditions on Diagnostic Parameters (Classic I/O) - Table One
HART Error Condition	Status returned to:
HART Error Condition	COLD_START	CONFIG_CHANGED	DEV_CFG_MISMATCH	DEV_MALFUNC	HINTEG	MORE_STATUS
Channel Type	AI, AO	AI, AO	AI, AO	AI, AO	AI, AO	AI, AO
Controller Configuration Error	No effect	No effect	No effect	No effect	No effect	No effect
I/O card A/D error	No effect	No effect	No effect	No effect	No effect	No effect
I/O card open loop	No effect	No effect	No effect	No effect	No effect	No effect
I/O card loss of digital comms	No effect	No effect	No effect	No effect	TRUE⁽¹⁾	No effect
PV not reported by device	No effect	No effect	No effect	No effect	No effect	No effect
DV not configured in controller	No effect	No effect	No effect	No effect	No effect	No effect
DV not reported by device	No effect	No effect	No effect	No effect	No effect	No effect
Diagnostics in progress	No effect	No effect	No effect	No effect	No effect	No effect
High, low, or high high alarm	No effect	No effect	No effect	No effect	No effect	No effect
Scale error and no comm	No effect	No effect	No effect	No effect	No effect	No effect
Scale error and good comm	No effect	No effect	No effect	No effect	No effect	No effect
Device malfunction	No effect	No effect	No effect	TRUE	TRUE	No effect
Device configuration changed	No effect	TRUE	No effect	No effect	No effect	No effect
Device cold start	TRUE	No effect	No effect	No effect	No effect	No effect
Device more status available	No effect	No effect	No effect	No effect	No effect	TRUE
Device analog output current fixed	No effect	No effect	No effect	No effect	TRUE	No effect
Device analog output saturated	No effect	No effect	No effect	No effect	TRUE	No effect
Device primary variable out of limits	No effect	No effect	No effect	No effect	TRUE	No effect
Device non-primary variable out of limits	No effect	No effect	No effect	No effect	TRUE	No effect
Device alerts enabled and device ID mismatch	No effect	No effect	TRUE	No effect	No effect	No effect
Stale data	No effect	No effect	No effect	No effect	No effect	No effect
HART busy, HART update warning, 5% comm error	No effect	No effect	No effect	No effect	No effect	No effect

⁽¹⁾ If not caused by an Open Loop or A/D Error

This table lists the status returned to the following Diagnostics parameters as a result of HART error conditions:

OINTEG (for both AI and AO channels)
NPV_PAST_LIM
PV_FIXED
PV_PAST_LIM
PV_SAT

Table: Effect of HART Error Conditions on Diagnostic Parameters (Classic I/O) - Table Two
HART Error Condition	Status returned to:
HART Error Condition	NO_COMM	OINTEG	OINTEG	NPV_PAST_LIM	PV_FIXED	PV_PAST_LIM	PV_SAT
Channel Type	AI, AO	AI	AO	AI, AO	AI, AO	AI, AO	AI, AO
Controller Configuration Error	No effect	BAD	BAD	No effect	No effect	No effect	No effect
I/O card A/D error	No effect	BAD	BAD	No effect	No effect	No effect	No effect
I/O card open loop	No effect	BAD	BAD	No effect	No effect	No effect	No effect
I/O card loss of digital comms	TRUE	BAD	BAD	No effect	No effect	No effect	No effect
PV not reported by device	No effect	BAD	BAD	No effect	No effect	No effect	No effect
DV not configured in controller	No effect	No effect	No effect	No effect	No effect	No effect	No effect
DV not reported by device	No effect	No effect	No effect	No effect	No effect	No effect	No effect
Diagnostics in progress	No effect	No effect	BAD	No effect	No effect	No effect	No effect
High, low, or high high alarm	No effect	BAD	BAD	No effect	No effect	No effect	No effect
Scale error and no comm	No effect	BAD	BAD	No effect	No effect	No effect	No effect
Scale error and good comm	No effect	BAD	BAD	No effect	No effect	No effect	No effect
Device malfunction	No effect	BAD⁽¹⁾	BAD⁽¹⁾	No effect	No effect	No effect	No effect
Device configuration changed	No effect	No effect	No effect	No effect	No effect	No effect	No effect
Device cold start	No effect	No effect	No effect	No effect	No effect	No effect	No effect
Device more status available	No effect	No effect	No effect	No effect	No effect	No effect	No effect
Device analog output current fixed	No effect	BAD⁽¹⁾	BAD⁽¹⁾	No effect	TRUE	No effect	No effect
Device analog output saturated	No effect	BAD⁽¹⁾	BAD⁽¹⁾	No effect	No effect	No effect	TRUE
Device primary variable out of limits	No effect	BAD⁽¹⁾	BAD⁽¹⁾	No effect	No effect	TRUE	No effect
Device non-primary variable out of limits	No effect	No effect	No effect	TRUE	No effect	No effect	No effect
Device alerts enabled and device ID mismatch	No effect	No effect	No effect	No effect	No effect	No effect	No effect
Stale data	No effect	No effect	No effect	No effect	No effect	No effect	No effect
HART busy, HART update warning, 5% comm error	No effect	No effect	No effect	No effect	No effect	No effect	No effect

⁽¹⁾ If not ignored by the configuration

Related information

Effect of HART error conditions on diagnostic parameters (CHARMs I/O)