Effect of HART error conditions on function block status (Classic I/O)

This section lists the status returned to HART function block parameters based on the HART error conditions. For ease of use, the information is presented in tables organized around the channel types to which the parameters apply (three tables showing parameters that apply to both AI and AO channels, AO only, and AI only).

This table lists the HART parameters that apply to both AI and AO channels (HART_PV, HART_SV, HART_TV, HART_FV) and the status returned to a function block based on the HART Error conditions shown. The error conditions are processed in the order shown in the table.

Table: HART Error Conditions and Status Returned for Both AI and AO Channels (Classic I/O)
HART Error Condition	Status returned to:
HART Error Condition	HART_PV	HART_SV	HART_TV	HART_FV
Controller Configuration Error	BadConfigError	BadConfigError	BadConfigError	BadConfigError
I/O card A/D error	BadDeviceFailure	BadDeviceFailure	BadDeviceFailure	BadDeviceFailure
I/O card open loop	BadNoCommLUV	BadNoCommLUV	BadNoCommLUV	BadNoCommLUV
I/O card loss of digital comms	BadNoCommLUV	BadNoCommLUV	BadNoCommLUV	BadNoCommLUV
PV not reported by device	BadConfigError	No effect	No effect	No effect
DV not configured in controller	No effect	No effect	No effect	No effect
DV not reported by device	No effect	No effect	No effect	No effect
Diagnostics in progress	No effect	No effect	No effect	No effect
High, low, or high high alarm	No effect	No effect	No effect	No effect
Scale error and no comm	No effect	No effect	No effect	No effect
Scale error and good comm	No effect	No effect	No effect	No effect
Device malfunction	BadDeviceFailure⁽¹⁾	BadDeviceFailure⁽¹⁾	BadDeviceFailure⁽¹⁾	BadDeviceFailure⁽¹⁾
Device configuration changed	No effect	No effect	No effect	No effect
Device cold start	No effect	No effect	No effect	No effect
Device more status available	No effect	No effect	No effect	No effect
Device analog output current fixed	BadNonSpecific⁽¹⁾	No effect	No effect	No effect
Device analog output saturated	BadNonSpecific⁽¹⁾	No effect	No effect	No effect
Device primary variable out of limits	BadNonSpecific⁽¹⁾	No effect	No effect	No effect
Device non-primary variable out of limits	No effect	BadNonSpecific⁽¹⁾	BadNonSpecific⁽¹⁾	BadNonSpecific⁽¹⁾
Device alerts enabled and device ID mismatch	No effect	No effect	No effect	No effect
Stale data	UncertainNonSpecific	UncertainNonSpecific	UncertainNonSpecific	UncertainNonSpecific
HART busy, HART update warning, 5% comm error	UncertainNonSpecific	UncertainNonSpecific	UncertainNonSpecific	UncertainNonSpecific

⁽¹⁾ If not ignored by the configuration

This table lists the HART parameters that apply to AO channels only (OUT, HART_DV_SLOT0, HART_DV_SLOT1, HART_DV_SLOT2, HART_DV_SLOT3) and the status returned to a function block based on the HART Error conditions. The error conditions are processed in the order shown in the table.

Table: HART Error Conditions and Status Returned for AO Channels Only (Classic I/O)
HART Error Condition	Status returned to:
HART Error Condition	OUT	HART_DV_SLOT0	HART_DV_SLOT1	HART_DV_SLOT2	HART_DV_SLOT3
Controller Configuration Error	BadConfigError	BadConfigError	BadConfigError	BadConfigError	BadConfigError
I/O card A/D error	BadDeviceFailure	BadDeviceFailure	BadDeviceFailure	BadDeviceFailure	BadDeviceFailure
I/O card open loop	BadNoCommLUV	BadNoCommLUV	BadNoCommLUV	BadNoCommLUV	BadNoCommLUV
I/O card loss of digital comms	No effect	BadNoCommLUV	BadNoCommLUV	BadNoCommLUV	BadNoCommLUV
PV not reported by device	No effect	No effect	No effect	No effect	No effect
DV not configured in controller	No effect	BadConfigError	BadConfigError	BadConfigError	BadConfigError
DV not reported by device	No effect	BadConfigError	BadConfigError	BadConfigError	BadConfigError
Diagnostics in progress	BadDeviceFailure	No effect	No effect	No effect	No effect
High, low, or high high alarm	No effect	No effect	No effect	No effect	No effect
Scale error and no comm	BadNoCommLUV	No effect	No effect	No effect	No effect
Scale error and good comm	BadConfigError	No effect	No effect	No effect	No effect
Device malfunction	BadDeviceFailure⁽¹⁾	BadDeviceFailure⁽¹⁾	BadDeviceFailure⁽¹⁾	BadDeviceFailure⁽¹⁾	BadDeviceFailure⁽¹⁾
Device configuration changed	No effect	No effect	No effect	No effect	No effect
Device cold start	No effect	No effect	No effect	No effect	No effect
Device more status available	No effect	No effect	No effect	No effect	No effect
Device analog output current fixed	BadNonSpecific⁽¹⁾	No effect	No effect	No effect	No effect
Device analog output saturated	BadNonSpecific⁽¹⁾	No effect	No effect	No effect	No effect
Device primary variable out of limits	BadNonSpecific⁽¹⁾	No effect	No effect	No effect	No effect
Device non-primary variable out of limits	No effect	BadNonSpecific⁽¹⁾	BadNonSpecific⁽¹⁾	BadNonSpecific⁽¹⁾	BadNonSpecific⁽¹⁾
Device alerts enabled and device ID mismatch	No effect	No effect	No effect	No effect	No effect
Stale data	UncertainNonSpecific	UncertainNonSpecific	UncertainNonSpecific	UncertainNonSpecific	UncertainNonSpecific
HART busy, HART update warning, 5% comm error	UncertainNonSpecific	No effect	No effect	No effect	No effect

This table lists the HART parameters that apply to AI channels only (FIELD_VAL_PCT and HART_FIELD_VAL)and the status returned to a function block based on the HART Error conditions. The error conditions are processed in the order shown in the table.

Table: HART Error Conditions and Status Returned for AI Channels Only (Classic I/O)
HART Error Condition	Status returned to:
HART Error Condition	FIELD_VAL_PCT	HART_FIELD_VAL
Controller Configuration Error	BadConfigError	BadConfigError
I/O card A/D error	BadDeviceFailure	BadDeviceFailure
I/O card open loop	BadDeviceFailure	BadNoCommLUV
I/O card loss of digital comms	No effect	No effect
PV not reported by device	No effect	No effect
DV not configured in controller	No effect	No effect
DV not reported by device	No effect	No effect
Diagnostics in progress	No effect	No effect
High, low, or high high alarm	BadDeviceFailure	BadDeviceFailure
Scale error and no comm	No effect	BadNoCommLUV
Scale error and good comm	No effect	BadConfigError
Device malfunction	No effect	BadDeviceFailure⁽¹⁾
Device configuration changed	No effect	No effect
Device cold start	No effect	No effect
Device more status available	No effect	No effect
Device analog output current fixed	No effect	BadNonSpecific⁽¹⁾
Device analog output saturated	No effect	BadNonSpecific⁽¹⁾
Device primary variable out of limits	No effect	BadNonSpecific⁽¹⁾
Device non-primary variable out of limits	No effect	No effect
Device alerts enabled and device ID mismatch	No effect	No effect
Stale data	UncertainNonSpecific	UncertainNonSpecific
HART busy, HART update warning, 5% comm error	No effect	No effect