Instrument Control Toolbox

The VISA-VXI Address

The VISA-VXI address consists of

• The chassis index of the VXI chassis
• The logical address of the instrument installed in the VXI chassis

You must specify the logical address value via the resource name during VISA-VXI object creation. Additionally, you must include the chassis index value as part of the resource name if it differs from the default value of 0. The properties associated with the chassis and instrument address are given below.

Table 4-4: VISA-VXI Address Properties 

Property Name	Description
ChassisIndex	Indicate the index number of the VXI chassis.
LogicalAddress	Specify the logical address of the VXI instrument.
Slot	Indicate the slot location of the VXI instrument.

The ChassisIndex and LogicalAddress properties are automatically updated with the specified resource name values when you create the VISA-VXI object. The Slot property is automatically updated after the object is connected to the instrument with the fopen function.

You can display the address property values for the VISA-VXI object vv created in Creating a VISA-VXI Object with the get function.

• fopen(vv)
  get(vv,{'ChassisIndex','LogicalAddress','Slot'})
  ans = 
      [0]    [32]    [2]
  

The VXI Interface

Register-Based Communication