Using the Pattern Generator
Appendix E
GPIB-410 User Manual
E-6
© National Instruments Corp.
Example of { ... }:
5 * {
set + atn
handshake "?0123456789"
set - all
}
During execution, the above sequence of 13 patterns will be output
to the GPIB five times.
IBPGL Tips and Techniques
Any of the named commands can be abbreviated to as few as one letter
if desired (that is, S, H, I, and P ). The maximum active line length is
79 characters, and comments can be included on any line by preceding
them with a semicolon (;).
HANDSHAKE commands containing lengthy text strings that cannot fit
on one line can be broken down into several shorter HANDSHAKE
commands yielding the same results. For example, the sequence of
commands:
handshake "abcd"
handshake "1234"
handshake "efgh"
is equivalent to the single command:
handshake "abcd1234efgh"
Unlike the above two sequences of commands, some sequences that
may appear to be identical actually yield slightly different results. For
example, consider the following two commands:
20 * handshake "a"
handshake "aaaaaaaaaaaaaaaaaaaa"
Though each command will result in the letter "a" being output to the
bus 20 times, the second command produces faster output than the first.
This is especially true if the Pattern Generator is using DMA. The
