The Initialize Instruction, In - HP 7470A Interfacing And Programming Manual

SYNTAX DF terminator
EXPLANATIONNo parameters are used; a numeric parameter will
cause error 2 and the instruction will not execute.
A DF command sets the following plotter functions to the conditions
shown in the following table. P1 and P2 are not changed.
Default Conditions
Function Conditions
Plotting mode Absolute (PA)
Relative character direction Horizontal (DR1,0)
Line type Solid line
Line pattern length 4% of the distance from P1 to P2
Input window Mechanical limits of plotter
Relative character size Width = 0.75% of (P2X—Plx)
Height = 1.5% of (P2y —Ply)
Symbol mode Off
Tick length tp = tn = 0.5%of (P2X- Plx) for Y-tick
and 0.5% of (P2y —Ply) for X-tick
Standard character set Set 0
Alternate character set Set 0
Character set selected Standard
Character slant 0 degrees
Mask value 223,0,0
Digitize clear On
Scale Off
Pen velocity 38.1 cm/s (15 in./s)
Label terminator ETX (ASCII decimal equivalent 3)
Chord angle* Set to 5 degrees for AA, AR, and CI
*Applicable only to Option O01 plotters that have the serial prefix number
2308Aor higher.
The Initialize Instruction, IN
UESCWP-"UN The initialize instruction, IN, returns the plotter's
graphics conditions to the initial power—on state by program control.
This instruction has no effect on handshake protocol or the plotter's
state (programmed on or programmed off) in an RS—232—C environment.
The instruction can be used to return the plotter to a known
state at the beginning of a graphics program so unwanted graphics
parameters such as character size, slant, and scaling are not inherited
from another program. P1 and P2 are set to power—on p ositions.
SYNTAX IN terminator
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