PXI Backplane属性下载PDF选定部分选定部分和子部分整个手册更新时间2025-07-30阅读时长16分钟LabVIEWAPI参考LabVIEW G General Settings:Maximum Queue LengthSpecifies the maximum number of events that can be queued at any time on the given session. This property is read/write until the first time you call VISA Enable Event on a session. Thereafter, it is read only. The default is 50.General Settings:Resource ClassReturns the resource class of the resource string used to open the given session. For example, if the resource string for a given session is COM1 or ASRL1::INSTR, this property returns INSTR, regardless of the class of the I/O control.General Settings:Resource Lock StateReturns the current locking state of the resource associated with the given session. The resource can be unlocked, locked with an exclusive lock, or locked with a shared lock. The default is Unlocked.General Settings:Resource NameReturns the unique identifier for a resource.General Settings:Timeout ValueSpecifies the minimum timeout value, in milliseconds, to use when accessing the device. Note that the actual timeout that VISA returns may be higher than the one requested. The default is 2000.General Settings:User DataSpecifies a data value for the private use of an application. The VISA implementation stores this value in a per-session location, so that user data on other sessions does not affect the user data on this session. VISA does not use this property for any purpose.Interface Information:Interface DescriptionSpecifies human-readable text that describes the given interface. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.Interface Information:Interface NumberReturns the board number for the given interface.Interface Information:Interface TypeSpecifies the interface type of the given session.Version Information:Resource Manufacturer IdentificationReturns a value that corresponds to the VXI manufacturer ID of the manufacturer that created the VISA implementation.Version Information:Resource Manufacturer NameReturns the name of the manufacturer that created the implementation. This is not related to the device manufacturer attributes. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.Version Information:Version of ImplementationReturns the version of a given implementation. This value is defined by the individual manufacturer and increments with each new revision. The format of the value has the upper 12 bits as the major number of the version, the next lower 12 bits as the minor number of the version, and the lowest 8 bits as the sub-minor number of the version.Version Information:Version of SpecificationReturns the value that uniquely identifies the version of the VISA specification to which the implementation complies. The format of the value has the upper 12 bits as the major number of the version, the next lower 12 bits as the minor number of the version, and the lowest 8 bits as the sub-minor number of the version.General Settings:Manufacturer NameReturns the name of the manufacturer that created the device. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.General Settings:Model NameReturns the model name of the device. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.General Settings:Trigger IdentifierSpecifies which trigger mechanism to use. In VXI systems, for example, you can choose between software triggers and hardware triggers on a specific trigger line. The default is Software.PXI/PCI Settings:Destination Trigger Bus NumberSpecifies the segment to use to qualify the trigger destination in VISA Map Trigger. Note: Some PXI chassis, typically those with more than eight slots, have multiple trigger buses (also called segments). The PXI Backplane resource uses the VISA Map Trigger to map a trigger between two trigger buses. One trigger bus, specified by Source Trigger Bus Number, is the source or writer for this trigger line. The other trigger bus, specified by Destination Trigger Bus Number, is a reader. You can have multiple readers, but only one writer for a given trigger line. For example, if you want to have triggers mapped from trigger bus 1 to trigger bus 2 and then from trigger bus 2 to trigger bus 3. In this case trigger bus 1 is the writer for this line, writing to both trigger bus 2 and trigger bus 3. Therefore, you should perform VISA Map Trigger from 1 to 2 and from 1 to 3. Mapping from 1 to 2 and then 2 to 3 would not be allowed because it would require 2 to be a writer (as well as 1). Note also that mapping from one line in the source trigger bus to a different line in the destination trigger bus is dependent on hardware capabilities and a specific software implementation. This behavior might not be supported. A value of -1 means this feature is not enabled or not applicable. On a single-segment chassis (eight slots or less), this feature is not applicable. For a multi-segment chassis (more than eight slots), the valid values are 1 to the number of chassis segments. You can determine the number of segments from MAX (in the trigger reservation panel), from the chassis documentation, and by looking at the dividing lines on the physical front panel of the chassis itself.PXI/PCI Settings:PXI Chassis NumberReturns the PXI chassis number of this resource. A value of -1 means the chassis number is unknown. Other valid values are 0 to 255.PXI/PCI Settings:Source Trigger Bus NumberSpecifies the segment to use to qualify the trigger source in VISA Map Trigger. Note: Some PXI chassis, typically those with more than eight slots, have multiple trigger buses (also called segments). The PXI Backplane resource uses the VISA Map Trigger to map a trigger between two trigger buses. One trigger bus, specified by Source Trigger Bus Number, is the source or writer for this trigger line. The other trigger bus, specified by Destination Trigger Bus Number, is a reader. You can have multiple readers, but only one writer for a given trigger line. For example, if you want to have triggers mapped from trigger bus 1 to trigger bus 2 and then from trigger bus 2 to trigger bus 3. In this case trigger bus 1 is the writer for this line, writing to both trigger bus 2 and trigger bus 3. Therefore, you should perform VISA Map Trigger from 1 to 2 and from 1 to 3. Mapping from 1 to 2 and then 2 to 3 would not be allowed because it would require 2 to be a writer (as well as 1). Note also that mapping from one line in the source trigger bus to a different line in the destination trigger bus is dependent on hardware capabilities and a specific software implementation. This behavior might not be supported. A value of -1 means this feature is not enabled or not applicable. On a single-segment chassis (eight slots or less), this feature is not applicable. For a multi-segment chassis (more than eight slots), the valid values are 1 to the number of chassis segments. You can determine the number of segments from MAX (in the trigger reservation panel), from the chassis documentation, and by looking at the dividing lines on the physical front panel of the chassis itself. The default is -1.PXI/PCI Settings:Trigger Bus NumberSpecifies the trigger bus number of this device.
General Settings:Maximum Queue LengthSpecifies the maximum number of events that can be queued at any time on the given session. This property is read/write until the first time you call VISA Enable Event on a session. Thereafter, it is read only. The default is 50.General Settings:Resource ClassReturns the resource class of the resource string used to open the given session. For example, if the resource string for a given session is COM1 or ASRL1::INSTR, this property returns INSTR, regardless of the class of the I/O control.General Settings:Resource Lock StateReturns the current locking state of the resource associated with the given session. The resource can be unlocked, locked with an exclusive lock, or locked with a shared lock. The default is Unlocked.General Settings:Resource NameReturns the unique identifier for a resource.General Settings:Timeout ValueSpecifies the minimum timeout value, in milliseconds, to use when accessing the device. Note that the actual timeout that VISA returns may be higher than the one requested. The default is 2000.General Settings:User DataSpecifies a data value for the private use of an application. The VISA implementation stores this value in a per-session location, so that user data on other sessions does not affect the user data on this session. VISA does not use this property for any purpose.Interface Information:Interface DescriptionSpecifies human-readable text that describes the given interface. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.Interface Information:Interface NumberReturns the board number for the given interface.Interface Information:Interface TypeSpecifies the interface type of the given session.Version Information:Resource Manufacturer IdentificationReturns a value that corresponds to the VXI manufacturer ID of the manufacturer that created the VISA implementation.Version Information:Resource Manufacturer NameReturns the name of the manufacturer that created the implementation. This is not related to the device manufacturer attributes. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.Version Information:Version of ImplementationReturns the version of a given implementation. This value is defined by the individual manufacturer and increments with each new revision. The format of the value has the upper 12 bits as the major number of the version, the next lower 12 bits as the minor number of the version, and the lowest 8 bits as the sub-minor number of the version.Version Information:Version of SpecificationReturns the value that uniquely identifies the version of the VISA specification to which the implementation complies. The format of the value has the upper 12 bits as the major number of the version, the next lower 12 bits as the minor number of the version, and the lowest 8 bits as the sub-minor number of the version.General Settings:Manufacturer NameReturns the name of the manufacturer that created the device. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.General Settings:Model NameReturns the model name of the device. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.General Settings:Trigger IdentifierSpecifies which trigger mechanism to use. In VXI systems, for example, you can choose between software triggers and hardware triggers on a specific trigger line. The default is Software.PXI/PCI Settings:Destination Trigger Bus NumberSpecifies the segment to use to qualify the trigger destination in VISA Map Trigger. Note: Some PXI chassis, typically those with more than eight slots, have multiple trigger buses (also called segments). The PXI Backplane resource uses the VISA Map Trigger to map a trigger between two trigger buses. One trigger bus, specified by Source Trigger Bus Number, is the source or writer for this trigger line. The other trigger bus, specified by Destination Trigger Bus Number, is a reader. You can have multiple readers, but only one writer for a given trigger line. For example, if you want to have triggers mapped from trigger bus 1 to trigger bus 2 and then from trigger bus 2 to trigger bus 3. In this case trigger bus 1 is the writer for this line, writing to both trigger bus 2 and trigger bus 3. Therefore, you should perform VISA Map Trigger from 1 to 2 and from 1 to 3. Mapping from 1 to 2 and then 2 to 3 would not be allowed because it would require 2 to be a writer (as well as 1). Note also that mapping from one line in the source trigger bus to a different line in the destination trigger bus is dependent on hardware capabilities and a specific software implementation. This behavior might not be supported. A value of -1 means this feature is not enabled or not applicable. On a single-segment chassis (eight slots or less), this feature is not applicable. For a multi-segment chassis (more than eight slots), the valid values are 1 to the number of chassis segments. You can determine the number of segments from MAX (in the trigger reservation panel), from the chassis documentation, and by looking at the dividing lines on the physical front panel of the chassis itself.PXI/PCI Settings:PXI Chassis NumberReturns the PXI chassis number of this resource. A value of -1 means the chassis number is unknown. Other valid values are 0 to 255.PXI/PCI Settings:Source Trigger Bus NumberSpecifies the segment to use to qualify the trigger source in VISA Map Trigger. Note: Some PXI chassis, typically those with more than eight slots, have multiple trigger buses (also called segments). The PXI Backplane resource uses the VISA Map Trigger to map a trigger between two trigger buses. One trigger bus, specified by Source Trigger Bus Number, is the source or writer for this trigger line. The other trigger bus, specified by Destination Trigger Bus Number, is a reader. You can have multiple readers, but only one writer for a given trigger line. For example, if you want to have triggers mapped from trigger bus 1 to trigger bus 2 and then from trigger bus 2 to trigger bus 3. In this case trigger bus 1 is the writer for this line, writing to both trigger bus 2 and trigger bus 3. Therefore, you should perform VISA Map Trigger from 1 to 2 and from 1 to 3. Mapping from 1 to 2 and then 2 to 3 would not be allowed because it would require 2 to be a writer (as well as 1). Note also that mapping from one line in the source trigger bus to a different line in the destination trigger bus is dependent on hardware capabilities and a specific software implementation. This behavior might not be supported. A value of -1 means this feature is not enabled or not applicable. On a single-segment chassis (eight slots or less), this feature is not applicable. For a multi-segment chassis (more than eight slots), the valid values are 1 to the number of chassis segments. You can determine the number of segments from MAX (in the trigger reservation panel), from the chassis documentation, and by looking at the dividing lines on the physical front panel of the chassis itself. The default is -1.PXI/PCI Settings:Trigger Bus NumberSpecifies the trigger bus number of this device.
General Settings:Maximum Queue LengthSpecifies the maximum number of events that can be queued at any time on the given session. This property is read/write until the first time you call VISA Enable Event on a session. Thereafter, it is read only. The default is 50.General Settings:Resource ClassReturns the resource class of the resource string used to open the given session. For example, if the resource string for a given session is COM1 or ASRL1::INSTR, this property returns INSTR, regardless of the class of the I/O control.General Settings:Resource Lock StateReturns the current locking state of the resource associated with the given session. The resource can be unlocked, locked with an exclusive lock, or locked with a shared lock. The default is Unlocked.General Settings:Resource NameReturns the unique identifier for a resource.General Settings:Timeout ValueSpecifies the minimum timeout value, in milliseconds, to use when accessing the device. Note that the actual timeout that VISA returns may be higher than the one requested. The default is 2000.General Settings:User DataSpecifies a data value for the private use of an application. The VISA implementation stores this value in a per-session location, so that user data on other sessions does not affect the user data on this session. VISA does not use this property for any purpose.Interface Information:Interface DescriptionSpecifies human-readable text that describes the given interface. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.Interface Information:Interface NumberReturns the board number for the given interface.Interface Information:Interface TypeSpecifies the interface type of the given session.Version Information:Resource Manufacturer IdentificationReturns a value that corresponds to the VXI manufacturer ID of the manufacturer that created the VISA implementation.Version Information:Resource Manufacturer NameReturns the name of the manufacturer that created the implementation. This is not related to the device manufacturer attributes. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.Version Information:Version of ImplementationReturns the version of a given implementation. This value is defined by the individual manufacturer and increments with each new revision. The format of the value has the upper 12 bits as the major number of the version, the next lower 12 bits as the minor number of the version, and the lowest 8 bits as the sub-minor number of the version.Version Information:Version of SpecificationReturns the value that uniquely identifies the version of the VISA specification to which the implementation complies. The format of the value has the upper 12 bits as the major number of the version, the next lower 12 bits as the minor number of the version, and the lowest 8 bits as the sub-minor number of the version.General Settings:Manufacturer NameReturns the name of the manufacturer that created the device. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.General Settings:Model NameReturns the model name of the device. Note: Use the value of this property for display purposes only and not for programmatic decisions. The value can change between VISA implementations and/or revisions.General Settings:Trigger IdentifierSpecifies which trigger mechanism to use. In VXI systems, for example, you can choose between software triggers and hardware triggers on a specific trigger line. The default is Software.PXI/PCI Settings:Destination Trigger Bus NumberSpecifies the segment to use to qualify the trigger destination in VISA Map Trigger. Note: Some PXI chassis, typically those with more than eight slots, have multiple trigger buses (also called segments). The PXI Backplane resource uses the VISA Map Trigger to map a trigger between two trigger buses. One trigger bus, specified by Source Trigger Bus Number, is the source or writer for this trigger line. The other trigger bus, specified by Destination Trigger Bus Number, is a reader. You can have multiple readers, but only one writer for a given trigger line. For example, if you want to have triggers mapped from trigger bus 1 to trigger bus 2 and then from trigger bus 2 to trigger bus 3. In this case trigger bus 1 is the writer for this line, writing to both trigger bus 2 and trigger bus 3. Therefore, you should perform VISA Map Trigger from 1 to 2 and from 1 to 3. Mapping from 1 to 2 and then 2 to 3 would not be allowed because it would require 2 to be a writer (as well as 1). Note also that mapping from one line in the source trigger bus to a different line in the destination trigger bus is dependent on hardware capabilities and a specific software implementation. This behavior might not be supported. A value of -1 means this feature is not enabled or not applicable. On a single-segment chassis (eight slots or less), this feature is not applicable. For a multi-segment chassis (more than eight slots), the valid values are 1 to the number of chassis segments. You can determine the number of segments from MAX (in the trigger reservation panel), from the chassis documentation, and by looking at the dividing lines on the physical front panel of the chassis itself.PXI/PCI Settings:PXI Chassis NumberReturns the PXI chassis number of this resource. A value of -1 means the chassis number is unknown. Other valid values are 0 to 255.PXI/PCI Settings:Source Trigger Bus NumberSpecifies the segment to use to qualify the trigger source in VISA Map Trigger. Note: Some PXI chassis, typically those with more than eight slots, have multiple trigger buses (also called segments). The PXI Backplane resource uses the VISA Map Trigger to map a trigger between two trigger buses. One trigger bus, specified by Source Trigger Bus Number, is the source or writer for this trigger line. The other trigger bus, specified by Destination Trigger Bus Number, is a reader. You can have multiple readers, but only one writer for a given trigger line. For example, if you want to have triggers mapped from trigger bus 1 to trigger bus 2 and then from trigger bus 2 to trigger bus 3. In this case trigger bus 1 is the writer for this line, writing to both trigger bus 2 and trigger bus 3. Therefore, you should perform VISA Map Trigger from 1 to 2 and from 1 to 3. Mapping from 1 to 2 and then 2 to 3 would not be allowed because it would require 2 to be a writer (as well as 1). Note also that mapping from one line in the source trigger bus to a different line in the destination trigger bus is dependent on hardware capabilities and a specific software implementation. This behavior might not be supported. A value of -1 means this feature is not enabled or not applicable. On a single-segment chassis (eight slots or less), this feature is not applicable. For a multi-segment chassis (more than eight slots), the valid values are 1 to the number of chassis segments. You can determine the number of segments from MAX (in the trigger reservation panel), from the chassis documentation, and by looking at the dividing lines on the physical front panel of the chassis itself. The default is -1.PXI/PCI Settings:Trigger Bus NumberSpecifies the trigger bus number of this device.