National Instruments NI-488.2 NI-488.2 User Manual page 121

Glossary
hex
high-level function
HS488
Hz
I
I/O
I/O address
,
ibcnt ibcntl
iberr
ibsta
IEEE
interface message
ISA
ist
NI-488.2 User Manual
Hexadecimal—A number represented in base 16. For example,
decimal 16 is hex 10.
See device-level function.
A high-speed data transfer protocol for IEEE 488. This protocol increases
performance for GPIB reads and writes up to 8 Mbytes/s, depending on
your system.
Hertz.
Input/output—In this manual, it is the transmission of commands or
messages between the system via the GPIB board and other devices
on the GPIB.
The address of the GPIB board from the point of view of the CPU, as
opposed to the GPIB address of the GPIB board. Also called port address
or board address.
After each NI-488.2 I/O call, these global variables contain the actual
number of bytes transmitted. On systems with a 16-bit integer, such
as MS-DOS, is a 16-bit integer, and
ibcnt
For cross-platform compatibility, use
A global variable that contains the specific error code associated with
a function call that failed.
At the end of each function call, this global variable (status word) contains
status information.
Institute of Electrical and Electronic Engineers.
A broadcast message sent from the Controller to all devices and used
to manage the GPIB.
Industry Standard Architecture.
An Individual Status bit of the status byte used in the Parallel Poll
Configure function.
ibcntl
G-4
is a 32-bit integer.
ibcntl
.
ni.com