VISA-GPIB-VXI Communication Parameters

• Adaptor
• Communication Address
• Termination

Adaptor
You can create a VISA-GPIB-VXI object that uses the VISA standard as implemented by Agilent Technologies or National Instruments.

Communication Address
Each VXI instrument must have a unique chassis index and logical address.

• Chassis Index - Specify the index number of the VXI chassis.
• Logical Address - Specify the instrument's logical address.

Termination
The following parameters are associated with completing read and write operations.

• EOSMode - Specify when the End-Of-String (EOS) character is used.
  • none - The EOS character is ignored.
  • read - The EOS character is used to complete read operations.
  • write - The EOS character is included with each write operation. When the EOS character is received by the instrument, its EOI line is asserted.
  • read&write - The EOS character is used for both read and write operations.
• EOSCharCode - Specify the EOS character. The value can range from 0 to 255, which represents the ASCII code for the character. For example, 13 represents a carriage return, while 10 represents a line feed. EOSCharCode replaces \n wherever it appears in the command sent to the instrument.
• EOIMode - Specify if the End-Or-Identify (EOI) line is asserted at the end of a write operation. The choices are:
  • Assert the EOI line
  • Don't assert the EOI line