
HP-IB Commands
The following paragraphs describe actual
HP-IB
commands which can be
used to perform the functions of the Basic commands shown in the
previous examples.
Parallel Poll
Command.
The parallel poll
command
(PPU)
resets all parallel poll devices to the idle state (unable to
respond to a parallel poll).
Parallel Poll
Configure Command. The parallel poll configure command
(PPC)
causes the addressed listener to be configured according to the
parallel poll enable secondary command PPE.
Parallel Poll Enable Command.
The parallel poll enable secondary
command
(PPE)
configures the devices which have received the PPC
command to respond to a parallel poll on a particular HP-IB DIO line
with a particular level.
Parallel Poll Disable Command.
The parallel poll disable secondary
command (PPD) disables the devices which have received the PPC
command from responding to the parallel poll.
Table B-l. Parallel Poll Commands
Command
M n e m o n i c
Parallel Poll
(Multiline Command)
Parallel Poll Configure
(Addressed Command)
Parallel Poll Enable
(Secondary Command)
Parallel Poll Disable
(Secondary Command)
PPE
PPD
21
96-111
112
Character
NAK
I-O
P
Status Reporting
B-12
HP
16518
Programming Reference