The Output Actual Position And Pen Status - HP 7470A Interfacing And Programming Manual
Graphics plotter
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Also See for 7470A:
- Operator's manual (41 pages) ,
- Interfacing and programming manual (114 pages) ,
- Service manual (141 pages)
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The Output Actual Position and
Pen Status Instruction, OA
UESCWPTION The output actual position and pen status instruction,
OA, is used to output the X- and Y-coordinates and pen status (up or
down) associated with the actual pen position.
USES This instruction can be used to determine the pen's current
position in plotter units. You might use that information to position a
label or figure, or determine the parameters of some desired window.
SYNTAX OA
(terminator)
EXPLANAHUN Output is always in plotter units.
No parameters are used. The instruction will execute even if no term- i
inator is received.
The pen position and status are output to the computer as integers in
ASCII in the form:
X,Y,P [TERM]
where
X is always the X—coordinate in plotter units,
Y is always the Y—coordinate in plotter units,
P is the pen status (0 = pen up, 1 = pen down), and
[TERM]is the output terminator for the interface installed.
The ranges of the X- and Y-coordinates are the current mechanical
limits determined by the setting of the paper switch.
US
A4
0<X< 10300
O<X< 10900
0<Y<7650
O<Y<765O
N0 positive sign is output.
OBTAINING INFORMATION FROM THE PLOTTER 7-3
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