
Syntax Overview
This overview is intended to give a quick glance at the syntax defined by
IEEE 488.2. It will help you understand many of the things about the syntax
you need to know.
IEEE 488.2 defines the blocks used to build messages which are sent to the
instrument. A whole string of commands can therefore be broken up into
individual components.
Figure 6-1 is an example syntax diagram and figure 6-2 shows a breakdown of
an example program message. There are a few key items to notice:
•
A semicolon separates commands from one another. Each program
message unit serves as a container for one command. The program
message units are separated by a semicolon.
•
A program message is terminated by a
<NL>
(new line). The recognition
of the program message terminator, or
<PMT>
, by the parser serves as a
signal for the parser to begin execution of commands. The
<PMT>
also
affects command tree traversal.
•
Multiple data parameters are separated by a comma.
•
The first data parameter is separated from the header with one or more
spaces.
•
The header
SYSTEM:LONGFORM OFF
is an example of a compound
header. It places the parser in the machine subsystem until the
<NL>
is
encountered.
•
A colon preceding the command header returns you to the top of the
command tree.
See Also
Chapter 5, "Programming and Documentation Conventions"
Message Communication and System Functions
Syntax Overview
6–7
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Страница 15: ...1 Introduction to Programming ...
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Страница 39: ...2 Programming Over HP IB ...
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Страница 69: ...5 Programming and Documentation Conventions ...
Страница 75: ...Figure 5 1 HP 16500C Command Tree Programming and Documentation Conventions The Command Tree 5 7 ...
Страница 81: ...6 Message Communication and System Functions ...
Страница 86: ...Figure 6 1 Example syntax diagram Message Communication and System Functions Syntax Diagrams 6 6 ...
Страница 88: ...Figure 6 2 program message Parse Tree Message Communication and System Functions Syntax Overview 6 8 ...
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Страница 93: ...Figure 7 1 Status Byte Structures and Concepts Status Reporting 7 3 ...
Страница 97: ...Figure 7 2 Service Request Enabling Status Reporting Key Features 7 7 ...
Страница 100: ...Figure 7 3 Parallel Poll Data Structure Status Reporting Parallel Poll 7 10 ...
Страница 105: ...8 Error Messages ...
Страница 106: ...Introduction This chapter lists the error messages that relate to the HP 16500C Logic Analysis System 8 2 ...
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Страница 113: ...9 Common Commands ...
Страница 116: ...Figure 9 1 Common Commands Syntax Diagram Common Commands 9 4 ...
Страница 122: ...Figure 9 2 IST Data Structure Common Commands IST Individual Status 9 10 ...
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Страница 133: ...10 Mainframe Commands ...
Страница 135: ...Figure 10 1 Mainframe Commands Syntax Diagram Mainframe Commands 10 3 ...
Страница 136: ...Figure 10 1 continued Mainframe Commands Syntax Diagram continued Mainframe Commands 10 4 ...
Страница 154: ...Figure 10 2 Select Command Tree Only available when an HP 16501A is connected Mainframe Commands SELect 10 22 ...
Страница 159: ...11 SYSTem Subsystem ...
Страница 161: ...Figure 11 1 System Subsystem Commands Syntax Diagram SYSTem Subsystem 11 3 ...
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Страница 173: ...12 MMEMory Subsystem ...
Страница 175: ...Figure 12 1 MMEMory Subsystem Commands Syntax Diagram MMEMory Subsystem 12 3 ...
Страница 176: ...Figure 12 1 Continued MMEMory Subsystem Commands Syntax Diagram Continued MMEMory Subsystem 12 4 ...
Страница 177: ...Figure 12 1 Continued MMEMory Subsystem Commands Syntax Diagram Continued MMEMory Subsystem 12 5 ...
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Страница 199: ...13 INTermodule Subsystem ...
Страница 201: ...Figure 13 1 Intermodule Subsystem Commands Syntax Diagram INTermodule Subsystem 13 3 ...
Страница 202: ...Figure 13 1 continued Intermodule Subsystem Commands Syntax Diagram continued INTermodule Subsystem 13 4 ...
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Страница 217: ...14 TGTctrl Subsystem ...
Страница 219: ...Figure 14 1 Targetcontrol Subsystem Commands Syntax Diagram TGTctrl Subsystem 14 3 ...
Страница 220: ...Figure 14 1 continued Targetcontrol Subsystem Commands Syntax Diagram TGTctrl Subsystem 14 4 ...
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