Configure Your Software with IBCONF
Chapter 5
GPIB-232CT-A for MS-DOS/Windows 5-10
© National Instruments Corp.
•
The time limit on I/O and wait function calls is set for approximately
10 s.
•
GPIB0
serial communications settings:
COM1, 8 Data Bits, 1 Stop Bit, No parity, 9600 baud
Device and Board Characteristics
The following explanations are for board and device characteristics in
IBCONF
. More extensive help for each characteristic is displayed on the
IBCONF
screen while the cursor is positioned in a field. Most of the
following characteristics apply to both devices and boards although some,
as indicated, only apply to boards.
Primary GPIB Address
All devices and boards must be assigned unique primary addresses in the
range from hex 00 to hex 1E (0 to 30 decimal).
Secondary GPIB Address
Any device or board using extended addressing must be assigned a
secondary address in the range from hex 60 to hex 7E (96 to 126 decimal),
or you can select the
NONE
option to disable secondary addressing. The
default option for this characteristic is
NONE
.
Timeout Settings
The timeout value is the approximate minimum length of time that I/O
functions such as
ibrd
,
ibwrt
, and
ibcmd
can take before a timeout
occurs. It is also the length of time that the
ibwait
function waits for an
event before returning if the TIMO bit is set in the event mask. The default
option for this characteristic is
10sec
.