System Commands 5
STATUS
*PRE
Command/Query
DESCRIPTION
COMMAND SYNTAX
QUERY SYNTAX
Response format
EXAMPLE (GPIB)
RELATED COMMANDS
The *PRE command sets the PaRallel poll Enable register (PRE).
The lowest 8 bits of the Parallel Poll Register (PPR) are composed
of the STB bits. The *PRE command allows the user to specify
which bit(s) of the parallel poll register will affect the ’ist’ individ-
ual status bit.
The *PRE? query reads the contents of the PRE register. The re-
sponse is a decimal number which corresponds to the binary sum
of the register bits.
Note: This command can be executed in both local and remote
modes.
PRE <value>
<value> := 0 to 65 535
*PRE?
*PRE <value>
The following command will cause the ’ist’ status bit to become 1
as soon as the MAV bit (bit 4 of STB, i.e. decimal 16) is set. This
yields the PRE value 16.
CMD$=" * PRE 16" : CALL IBWRT(SCOPE%,CMD$)
*IST?
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