I/O Session Class

LabVIEW 2018 Help


Edition Date: March 2018
Part Number: 371361R-01
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Inherits from VISA object class.

Long Name Description
Version Information:Version of Specification Returns 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. Details
General Settings:Resource Lock State Returns 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. Details
General Settings:Maximum Queue Length Specifies 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. Details
Version Information:Resource Manufacturer Name Returns the name of the manufacturer that created the implementation. This is not related to the device manufacturer attributes. Details
General Settings:Resource Class Returns 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. Details
Interface Information:Interface Number Returns the board number for the given interface. Details
General Settings:User Data Specifies 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. Details
Interface Information:Interface Description Specifies human-readable text that describes the given interface. Details
Interface Information:Interface Type Specifies the interface type of the given session. Details
General Settings:Resource Name Returns the unique identifier for a resource. Details
Version Information:Version of Implementation Returns 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. Details
Version Information:Resource Manufacturer Identification Returns a value that corresponds to the VXI manufacturer ID of the manufacturer that created the VISA implementation. Details
General Settings:Timeout Value Specifies 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. Details

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