Section Three GPIB-PC Functions — Introduction
©National Instruments Corp. 3-5 GPIB-PC User Manual
Placing a Device in Local Mode
Devices must usually be placed in remote program mode before they
can be programmed from the GPIB. This operation is done
automatically by the handler. The IBLOC function is then used when
that device must be returned to local program mode.
In addition, unless disabled using the configuration program (IBCONF),
the handler places devices in local lockout mode, which prevents you
from returning a device to local mode using the device's front-panel
control.
The seven previously described functions will be sufficient to meet your
application needs, in most cases. They are the most important functions
for you to learn.
Group III
The functions of Group III are more flexible for controlling and
communicating with devices. Group III functions are as follows:
• IBRDA,
• IBWRTA,
• IBRDF,
• IBWRTF,
• IBWAIT,
• IBSTOP,
• IBTMO,
• IBONL, and
• IBPCT.
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