Header and
Parameters
The HP-IB control commands consists of a command header and
parameters. (See the following.)
Figure 8-2. Command Header and Parameters
Headers can b e of the long form or the short form. The long form
allows easier understanding of the program co de and the short form
allows more ecient use of the computer. Parameters maybe oftwo
types as follows.
Character Data and String Data
Character data consists of ASCI I characters. The abbreviation
rules are the same as the rules for command headers. String data
consists of ASCI I characters enclosed by double quotes (" ").
Numeric Data
Integer (NR1), xed p oint (NR2), or oating p oint (NR3). These
three numeric data typ es are dened in IEEE 488.2-1988. (Refer
to the syntax diagrams on the next page.) The available range for
numeric data is
6
9.9E37.
Command Reference 8-5
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