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Keywords
Note that a string expression can be either a string of ASCII characters enclosed in quotation marks ('
1
or
"), or a string variable (for example: H¥). A numeric expression can be either a number, or an
expression that can be evaluated to obtain a number.
3.2 KEYWORD SYNTAX
This subsection defines the syntax and describes the operation of each keyword.
ACVOLTS
FHCAWOLTS [© channel number?
channel number - an HP 3421A channel number (range = 00 - 29).
This function returns an ac voltage reading from the HP 3421A instrument.
If no channel number is
specified, the reading will be taken from the currently closed channel.
ADR3421%$
This function returns the device specifier of the current HP 3421A (specified by IlzE:=4:1 or
IMITZ4:1). If no HP 3421A is active, the null string is returned.
AUTOIDY
FHUTOIOY {OH OFF }
When HUTT DY is enabled, the HP-IL module sends IDY frames during every idle moment, allowing an
instrument to send a service request back to the HP-71. The IDY frames are sent until a service request
is received, the loop is broken, an HLITOI OY CFF is executed, or a FEET HFIL. is executed. Note
that ALITOTOY (OF increases power consumption in the HP-71.
3-2
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