Chapter 5
Configure Your Software with IBCONF
© National Instruments Corp.
5-9
GPIB-232CT-A for MS-DOS/Windows
Default Configurations
The NI-488.2 software has factory default configurations. For example, the
default device names of the 32 GPIB devices are
DEV1
through
DEV32
.
You may want to change the names to more descriptive ones, such as
METER
for a digital multimeter.
You can use
IBCONF
to look at the current default settings in the software
file.
If you do not use
IBCONF
to make changes to the NI-488.2 software, the
default configurations of the software remain in effect.
Default Values
The following are the default values of the NI-488.2 software.
•
There are 32 devices with symbolic names
DEV1
through
DEV32
.
•
There are four access boards with symbolic names
GPIB0
,
GPIB1
,
GPIB2
, and
GPIB3
. You cannot change access board names.
•
Access board
GPIB0
is enabled.
GPIB1
,
GPIB2
, and
GPIB3
are
disabled.
•
The GPIB addresses of the first 16 devices are the same as the device
number. For example,
DEV1
is at address 1. These devices are
assigned to the access board
GPIB0
.
•
The GPIB addresses of the second 16 devices are 1 through 16, in
order. For example,
DEV17
is at address 1 and
DEV18
is at address 2.
These devices are assigned to access board
GPIB1
.
•
Each GPIB interface board is System Controller of its independent bus
and has a GPIB primary address of 0.
•
The END message is sent with the last byte of each data message to a
device. No End-of-String (EOS) character is recognized.
