• NIDIGITAL_ATTRIBUTE_HISTORY_RAM_TRIGGER_TYPE
• NIDIGITAL_ATTRIBUTE_CYCLE_NUMBER_HISTORY_RAM_TRIGGER_CYCLE_NUMBER
• NIDIGITAL_ATTRIBUTE_PATTERN_LABEL_HISTORY_RAM_TRIGGER_VECTOR_OFFSET
• NIDIGITAL_ATTRIBUTE_PATTERN_LABEL_HISTORY_RAM_TRIGGER_CYCLE_OFFSET
• NIDIGITAL_ATTRIBUTE_PATTERN_LABEL_HISTORY_RAM_TRIGGER_LABEL
• NIDIGITAL_ATTRIBUTE_HISTORY_RAM_CYCLES_TO_ACQUIRE
• NIDIGITAL_ATTRIBUTE_HISTORY_RAM_PRETRIGGER_SAMPLES
• NIDIGITAL_ATTRIBUTE_HISTORY_RAM_MAX_SAMPLES_TO_ACQUIRE_PER_SITE
• NIDIGITAL_ATTRIBUTE_HISTORY_RAM_NUMBER_OF_SAMPLES_IS_FINITE
• NIDIGITAL_ATTRIBUTE_HISTORY_RAM_BUFFER_SIZE_PER_SITE

Numeric Value	1150043
Datatype	ViInt32
Access	R/W
Applies to	N/A
Coercion	None
High-level Functions	niDigital_ConfigurePatternLabelHistoryRAMTrigger niDigital_ConfigureCycleNumberHistoryRAMTrigger niDigital_ConfigureFirstFailureHistoryRAMTrigger

Specifies the type of trigger condition on which History RAM starts acquiring pattern information.

Defined Values:
NIDIGITAL_VAL_FIRST_FAILURE (2200)	Starts acquiring pattern information in History RAM on the first failed cycle in a pattern burst.
NIDIGITAL_VAL_CYCLE_NUMBER (2201)	Starts acquiring pattern information in History RAM starting from a specified cycle number.
NIDIGITAL_VAL_PATTERN_LABEL (2202)	Starts acquiring pattern information in History RAM starting from a specified pattern label, augmented by vector and cycle offsets.

Numeric Value	1150044
Datatype	ViInt64
Access	R/W
Applies to	N/A
Coercion	None
High-level Functions	niDigital_ConfigureCycleNumberHistoryRAMTrigger

Specifies the cycle number on which History RAM starts acquiring pattern information when configured for a cycle number trigger.

Numeric Value	1150052
Datatype	ViInt64
Access	R/W
Applies to	N/A
Coercion	None
High-level Functions	niDigital_ConfigurePatternLabelHistoryRAMTrigger

Specifies the number of vectors that follow the specified pattern label, after which History RAM will start acquiring pattern information when configured for a pattern label trigger.

Numeric Value	1150045
Datatype	ViInt64
Access	R/W
Applies to	N/A
Coercion	None
High-level Functions	niDigital_ConfigurePatternLabelHistoryRAMTrigger

Specifies the number of cycles that follow the specified pattern label and vector offset, after which History RAM will start acquiring pattern information when configured for a pattern label trigger.

Numeric Value	1150046
Datatype	ViString
Access	R/W
Applies to	N/A
Coercion	None
High-level Functions	niDigital_ConfigurePatternLabelHistoryRAMTrigger

Specifies the pattern label, augmented by the vector and cycle offset, to determine the point where History RAM will start acquiring pattern information when configured for a pattern label trigger.

Numeric Value	1150047
Datatype	ViInt32
Access	R/W
Applies to	N/A
Coercion	None
High-level Functions	niDigital_ConfigureHistoryRAMCyclesToAcquire

Configures which cycles History RAM acquires after the trigger conditions are met. If you configure History RAM to only acquire failed cycles, you must set the pretrigger samples for History RAM to 0.

Defined Values:
NIDIGITAL_VAL_FAILED_CYCLES (2303)	Only acquires cycles that fail a compare after the triggering conditions are met.
NIDIGITAL_VAL_ALL_CYCLES (2304)	Acquires all cycles after the triggering conditions are met.

Numeric Value	1150048
Datatype	ViInt32
Access	R/W
Applies to	N/A
Coercion	None
High-level Functions	niDigital_ConfigurePatternLabelHistoryRAMTrigger niDigital_ConfigureCycleNumberHistoryRAMTrigger niDigital_ConfigureFirstFailureHistoryRAMTrigger

Specifies the number of samples to acquire before the trigger conditions are met. If you configure History RAM to only acquire failed cycles, you must set the pretrigger samples for History RAM to 0.

Numeric Value	1150077
Datatype	ViInt32
Access	R/W
Applies to	N/A
Coercion	Yes
High-level Functions	N/A

Specifies the maximum number of History RAM samples to acquire per site. If the property is set to -1, it will acquire until the History RAM buffer is full.

Numeric Value	1150078
Datatype	ViBoolean
Access	R/W
Applies to	N/A
Coercion	None
High-level Functions	N/A

Specifies whether the instrument acquires a finite number of History RAM samples or acquires continuously.

The maximum number of samples that will be acquired when this property is set to VI_TRUE is determined by the instrument History RAM depth specification and the History RAM Max Samples to Acquire Per Site property.

Valid Values:
VI_TRUE	Specifies that History RAM results will not stream into the host buffer until a History RAM fetch API is called.
VI_FALSE	Specifies that History RAM results will automatically start streaming into a host buffer after a pattern is burst and the History RAM has triggered.

Default Value:
VI_TRUE

Numeric Value	1150079
Datatype	ViInt64
Access	R/W
Applies to	N/A
Coercion	None
High-level Functions	N/A

Specifies the size, in samples, of the host memory buffer.

Valid Values:
0-INT64_MAX

Default Value:
32,000