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Introduction to Programming
Instruction Syntax
Instruction Syntax
To program the system remotely, you must have an understanding of the
command format and structure. The IEEE 488.2 standard governs syntax
rules pertaining to how individual elements, such as headers, separators,
parameters and terminators, may be grouped together to form complete
instructions. Syntax definitions are also given to show how query responses
will be formatted. Figure 1-1 shows the three main syntactical parts of a
typical program statement: Output Command, Device Address, and
Instruction. The instruction is further broken down into three parts:
Instruction header, White space, and Instruction parameters.
Figure 1-1
Program Message Syntax
Output Command
The output command depends on the language you choose to use.
Throughout this guide, HP 9000 Series 300 BASIC 6.2 is used in the
programming examples. If you use another language, you will need to find
the equivalents of BASIC Commands, like OUTPUT, ENTER and CLEAR in
order to convert the examples. The instructions are always shown between
the double quotes.
1–6
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