Target Support for Timing Attributes and Functions

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Updated2023-02-21
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Many timing attributes and functions are supported only on certain targets. Refer to the tables below to determine whether or not a given attribute or function is supported on your chosen target.

Target Support for Timing Attributes

Property	6683(H) Windows	6683(H) Linux RT and DT	cRIO, Vision Industrial Controller Linux RT	Ethernet cDAQ Linux RT
Timing attributes
NISYNC_ATTR_TIMEREF_SELECTED_TYPE	Yes	Yes	Yes	Yes
NISYNC_ATTR_TIMEREF_SELECTED_NAME	Yes	Yes	Yes	Yes
NISYNC_ATTR_TIMEREF_PRESENT	Yes	Yes	No	No
NISYNC_ATTR_TIMEREF_OFFSET_NS	Yes	Yes	Yes	Yes
NISYNC_ATTR_TIMEREF_OFFSET	Yes	Yes	Yes	Yes
NISYNC_ATTR_TIMEREF_CORRECTION	Yes	Yes	No	No
NISYNC_ATTR_TIMEREF_UTC_OFFSET	Yes	No	No	No
NISYNC_ATTR_TIMEREF_UTC_OFFSET_VALID	Yes	No	No	No
NISYNC_ATTR_1588_CLK_RESOLUTION	Yes	Yes	No	No
NISYNC_ATTR_TIMEREF_LAST_SYNC_ID	Yes	Yes	Yes	No
Timing:Time Reference
NISYNC_ATTR_TIMEREF_TYPE	No	Yes	Yes	Yes
NISYNC_ATTR_TIMEREF_ENABLED	No	Yes	Yes	Yes
NISYNC_ATTR_TIMEREF_IS_SELECTED	No	Yes	Yes	Yes
Timing:Time Reference:1588
NISYNC_ATTR_1588_BMCA_MODE	No	Yes	Yes	No
NISYNC_ATTR_1588_CLOCK_ACCURACY	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_CLOCK_CLASS	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_CLOCK_ID	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_CLOCK_STATE	Yes	Yes	Yes	No
NISYNC_ATTR_1588_FREQUENCY_TRACEABLE	Yes*	Yes*	Yes*	No
NISYNC_ATTR_1588_GRANDMASTER_CLOCK_ACCURACY	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_GRANDMASTER_CLOCK_CLASS	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_GRANDMASTER_CLOCK_ID	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_GRANDMASTER_IP_ADDRESS	No	Yes	Yes	No
NISYNC_ATTR_1588_GRANDMASTER_PRIORITY1	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_GRANDMASTER_PRIORITY2	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_INTERFACE_NAME	No	Yes	Yes	No
NISYNC_ATTR_1588_IP_ADDRESS	Yes	Yes	No	No
NISYNC_ATTR_1588_LEAP59	Yes*	Yes*	Yes*	No
NISYNC_ATTR_1588_LEAP61	Yes*	Yes*	Yes*	No
NISYNC_ATTR_1588_LOG_SYNC_INTERVAL	Yes	Yes	Yes	No
NISYNC_ATTR_1588_MEAN_PATH_DELAY	Yes	Yes	Yes	No
NISYNC_ATTR_1588_OFFSET_SCALED_LOG_VARIANCE	Yes*	Yes*	Yes*	No
NISYNC_ATTR_1588_PRIORITY1	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_PRIORITY2	Yes	Yes	Yes	Yes
NISYNC_ATTR_1588_STEPS_TO_GRANDMASTER	Yes	Yes	Yes	No
NISYNC_ATTR_1588_TIME_SOURCE	Yes*	Yes*	Yes*	No
NISYNC_ATTR_1588_TIME_TRACEABLE	Yes*	Yes*	Yes*	No
Timing:Time Reference:802.1AS
NISYNC_ATTR_8021AS_PORT_STATE	No	Yes	Yes	No
NISYNC_ATTR_8021AS_CLOCK_ID	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_CLOCK_CLASS	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_CLOCK_ACCURACY	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_PRIORITY1	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_PRIORITY2	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_GRANDMASTER_CLOCK_ID	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_GRANDMASTER_CLOCK_CLASS	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_GRANDMASTER_CLOCK_ACCURACY	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_GRANDMASTER_PRIORITY1	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_GRANDMASTER_PRIORITY2	No	Yes	Yes	Yes
NISYNC_ATTR_8021AS_LOG_SYNC_INTERVAL	No	Yes	Yes	No
NISYNC_ATTR_8021AS_LOG_ANNOUNCE_INTERVAL	No	Yes	Yes	No
NISYNC_ATTR_8021AS_INTERFACE_NAME	No	Yes	Yes	No
NISYNC_ATTR_8021AS_NEIGHBOR_PROP_DELAY_THRESH	No	Yes	Yes	No
NISYNC_ATTR_8021AS_AS_CAPABLE	No	Yes	Yes	No
Timing:Time Reference:GPS
NISYNC_ATTR_GPS_ANTENNA_CONNECTED	Yes	Yes	No	No
NISYNC_ATTR_GPS_MOBILE_MODE	Yes	Yes	No	No
NISYNC_ATTR_GPS_SELF_SURVEY	Yes	Yes	No	No
NISYNC_ATTR_GPS_RECALCULATE_POSITION	Yes	Yes	No	No
NISYNC_ATTR_GPS_SATELLITES_AVAILABLE	Yes	Yes	No	No
NISYNC_ATTR_GPS_STATUS	Yes	Yes	No	No
Timing:Time Stamps
NISYNC_ATTR_1588_AVAIL_TIMESTAMPS	Yes	Yes	No	No
NISYNC_ATTR_1588_TIMESTAMP_BUF_SIZE	Yes	Yes	No	No
* Support was added in NI-Sync 2022 Q4.

Target Support for Timing Functions

Function	6683(H) Windows	6683(H) Linux RT and DT^*	cRIO, Ethernet cDAQ^‡, Industrial Controller^† Linux RT
niSync_ClearClock	Yes	Yes	No
niSync_ClearFutureTimeEvents	Yes	Yes	No
niSync_CreateClock	Yes	Yes	No
niSync_CreateFutureTimeEvent	Yes	Yes	No
niSync_DisableTimeStampTrigger	Yes	Yes	No
niSync_EnableTimeStampTrigger	Yes	Yes	No
niSync_GetTime	Yes	Yes	Yes
niSync_DisableGPSTimestamping	Yes	Yes	No
niSync_DisableIRIGTimestamping	Yes	Yes	No
niSync_EnableGPSTimestamping	Yes	Yes	No
niSync_EnableIRIGTimestamping	Yes	Yes	No
niSync_GetLocation	Yes	Yes	No
niSync_GetVelocity	Yes	Yes	No
niSync_ReadLastGPSTimestamp	Yes	Yes	No
niSync_ReadLastIRIGTimestamp	Yes	Yes	No
niSync_GetTimeReferences	Yes	Yes	Yes
niSync_ResetFrequency	Yes	Yes	No
niSync_SetTime	Yes	Yes	No
niSync_SetTimeReference1588OrdinaryClock	Yes	Yes	No
niSync_SetTimeReference8021AS	No	Yes	No
niSync_SetTimeReferenceFreeRunning	Yes	Yes	No
niSync_SetTimeReferenceGPS	Yes	Yes	No
niSync_SetTimeReferenceIRIG	Yes	Yes	No
niSync_SetTimeReferencePPS	Yes	Yes	No
niSync_Start1588	Yes	Yes	No
niSync_Start8021AS	No	Yes	No
niSync_Stop1588	Yes	Yes	No
niSync_Stop8021AS	No	Yes	No
* Partial Linux RT support for 6683(H) modules was first added in NI-Sync 19.0, with full support completed in NI-Sync 21.3. † Linux RT support for cRIO and Industrial Controller modules was first added in NI-Sync 18.0. ‡ Linux RT support for cDAQ was first added in NI-Sync 18.1.

NI-Sync C API Reference

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Target Support for Timing Attributes and Functions

Target Support for Timing Attributes

Target Support for Timing Functions

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