Section Two Installation and Configuration
©National Instruments Corp. 2-17 GPIB-PC User Manual
Situations which are checked are as follows:
• GPIB addressing conflict between a device and its access
board;
• GPIB boards not present in the host machine at the specified
address; and
• Timeouts disabled on a device or board.
If any of these situations is encountered, you will be notified and given
the option of re-entering or exiting IBCONF. To disable auto-checking,
call IBCONF -E.
After exiting, the system MUST be rebooted for the new values to take
effect.
Some functions may be called during the execution of an application
program to change some of the configured values temporarily. These
functions are shown in Table 2.2.
Table 2.2 - Functions that Alter Default Characteristics
Characteristic Dynamically Changed by
Primary GPIB address IBPAD
Secondary GPIB address IBSAD
End-of-string (EOS) byte IBEOS
7- or 8- bit compare on EOS IBEOS
Set EOI with EOS on Write IBEOS
Terminate a Read on EOS IBEOS
Set EOI w/last byte of Write IBEOT
Change board assignment IBBNA
Enable or disable DMA IBDMA
Change or disable time limit IBTMO
Request/release system control IBRSC