HP 7470A Interfacing And Programming Manual
Download Interfacing and programming manual of HP 7470A Plotter for Free or View it Online on All-Guides.com.
Appendix
Instruction Syntax
HP-GL Syntax
This section lists the formal syntax for each plotter instruction in
alphabetical order of the instruction’s two-letter mnemonic.
Each instruction is listed with its purpose, syntax, parameter or re
sponse type, and range. If no parameter range is given, the range is
-215 to 215-1. Refer to the indicated pages for details. The semicolon is
included as the terminator for all instructions except the label instruc
tions. A nonalphabetic or nonnumeric character such as # or $, or the
next mnemonic can also be used as the instruction terminator. In
addition, if you have an HP-IB or HP—ILplotter, the line feed character
can be used as a terminator. The semicolon appears in parentheses (;)
if the instruction executes without the plotter receiving the terminator.
[TERM]means the terminator sent by the plotter at the end of output.
It is CR LF in an HP—IBor HP—ILconfiguration and CR or as set by an
ESC .M command in an RS-232-Cconfiguration.
AA* The Arc Absolute Instruction Page3-17
AA X—coordinate,Y—coordinate,arcangle(,chord angle);
Purpose: Draws arc of specified number of degrees with specified
smoothness; centered at X,Y coordinate, using current
pen status (up or down).
Parameters: X—and Y—coordinates— integer, in plotter units unless
scaling in effect;then in user units.
are angle — integer, negative value specifies clockwise
are, positive value specifies counterclockwise arc.
chord angle —integer, defines arc smoothness in degrees.
Default is 5 degrees.
*Available only with RS-232-Cplotters that have the serial prefix number 2308Aor
higher.
INSTRUCTION SYNTAX B-l