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Software Reference
Chapter 4
GPIB-410 User Manual
4-28
© National Instruments Corp.
Computer Speaker Mode
Use this field to enable or disable use of the computer speaker. There
are two options.
•
Audible
•
Silent
Selecting
Audible
enables the GPIB-410 to "beep" whenever an error
or other important event occurs during operation. Selecting
Silent
inhibits this feature of the software and may result in a slight
performance gain under some operating conditions.
Base I/O Address
Use this field to enter the port address of the GPIB-410 interface board.
This value must match the setting configured in the address switches on
the interface board itself. Valid port addresses range from 000 to 3E0
hex in multiples of 20 hex (default = 300 hex).
A good way to test if the value contained in this field is correct is to
examine the sixteen GPIB indicators in the Monitor window. If all of
the indicators are on, or if they repeatedly flicker on and off in an
irregular manner, the base I/O address setting is probably incorrect.
Power down your computer, verify the switch settings on the interface
board, and try again.
Warning:
Attempting to operate some functions of the GPIB-410
software with an address already in use by another device
may crash your system or have other unpredictable effects.
Input DMA Channel
Use this field to specify the method by which captured data is unloaded
from the onboard memory of the GPIB-410 into the system memory of
the host PC. There are four options.
•
(DMA) 1
(default)
•
(DMA) 2