The Instrument Control toolkit must be installed and then loaded to be used.
It can be installed in GNU Octave directly from octave-forge, or can be installed in an off-line mode via a downloaded tarball.
The toolkit must be then be loaded once per each GNU Octave session in order to use its functionality.
For GPIB support (Linux only), linux-gpib must be installed before installing instrument-control. GPIB support is also available for windows by following the information from the wiki: https://wiki.octave.org/Instrument_control_package#Requirements
For VXI11 support, rpcgen, and libtirpc-devel must be installed before installing instrument-control.
For MODBUS support, the libmodbus-devel must be installed before installing instrument-control.
If using the GNU Octave installer in Windows, the toolkit will have already been installed, and does not need to be re-installed unless a newer version is available.
Run the following command to verify if the toolkit is available:
pkg list instrument-control
With an internet connection available, toolkit can be installed from octave-forge using the following command within GNU Octave:
pkg install -forge instrument-control
The latest released version of the toolkit will be downloaded, compiled and installed.