VISA-GPIB Communication Parameters
You should configure the VISA-GPIB object to match your instrument's communication configuration,
which you typically set with its front panel.
Adaptor
You can create a VISA-GPIB object that uses the VISA standard as implemented by
Agilent Technologies or National Instruments.
Communication Address
Each GPIB instrument must have a unique board index and primary address. An optional
secondary address can also be used.
- Board Index - Specify the index number of the GPIB board (controller).
- Primary Address - Specify the instrument's primary address. The value
can range from 0 to 30.
- Secondary Address - Specify the instrument's secondary address. The value
can range from 0 to 30. A value of 0 indicates that no secondary address is used.
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