National Instruments NI-488.2 - Manual (Page 126)

Glossary
NI-488.2 User Manual G-6 ni.com
MLA My Listen Address—A GPIB command used to address a device to be
a Listener. It can be any one of the 31 primary addresses.
MSA My Secondary Address—The GPIB command used to address a device to
be a Listener or a Talker when extended (two-byte) addressing is used. The
complete address is a MLA or MTA address followed by an MSA address.
There are 31 secondary addresses for a total of 961 distinct listen or talk
addresses for devices.
MTA My Talk Address—A GPIB command used to address a device to be
a Talker. It can be any one of the 31 primary addresses.
multitasking The concurrent processing of more than one program or task.
N
NDAC Not Data Accepted—One of the three GPIB handshake lines.
See also
handshake .
NRFD Not Ready For Data—One of the three GPIB handshake lines.
See also
handshake .
P
parallel poll The process of polling all configured devices at once and reading
a composite poll response. See also
serial poll .
PC Personal computer.
PCI Peripheral Component Interconnect.
PIO See programmed I/O .
PPC Parallel Poll Configure—The GPIB command used to configure
an addressed Listener to participate in polls.
PPD Parallel Poll Disable—The GPIB command used to disable a configured
device from participating in polls. There are 16 PPD commands.
PPE Parallel Poll Enable—The GPIB command used to enable a configured
device to participate in polls and to assign a DIO response line.
There are 16 PPE commands.