Measurement-computing Analyzer488 Manual do Utilizador Página 115

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Section 4 Serial Controller
4.21
ASSERT
The
ASSERT
command asserts one or more bus management and/or data lines
when the Analyzer488 is in the Low Level Controller Mode. Individual lines or
ALL
lines may be specified. Data is specified after the keyword
DATA
in Binary, Decimal,
Hexadecimal, or ASCII format
The
ASSERT
command will only assert data lines while the Analyzer488 is in
the Talk State. If
ASSERT
is issued while the Analyzer488 is in Listen State, the
specified management lines and data lines will be asserted when the Analyzer488 is
changed to the Talk State (by issuing the
TALK
command).
Lines remain asserted until they are unasserted, the Analyzer488 is reset, or the
CONTROLLER OFF
command is used to put in the Analyzer488 into the High Level
controller Mode.
The query option,
ASSERT?
, returns the management and data lines that have
been asserted.
TYPE Low Level Controller command
SYNTAX ASSERT {[line][ALL][DATA<data>]}
line
is one or more of
SRQ
,
ATN
,
REN
,
EOI
, or
IFC
data
may be specified in Binary (
%01001010
) (all eight digits
must be specified), Decimal (
122
), Hexadecimal (
&H3F
) (both
digits must be specified), or ASCII ('
A
).
RESPONSE None
MODE Low Level Controller
BUS STATES Bus states are defined by the usage of the commands.
QUERY The string:
ASSERT,
followed by the management and data lines
RESPONSE that were asserted.
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