HP 7470A Interfacing And Programming Manual page 200

DT The Define Terminator Instruction Page5-6
DT t ( ;)
Purpose: Defines the label terminator used in LB command.
Parameter: ASCII character 1 to 127 except 5 and 27. Only an IN or
IM
IN
IP
IW
DF command or use of ETX (decimal 3) as parameter
restores label terminator to ETX, its default value.
The Input Mask Instruction Page1-12
IM E—maskvalue (, S—maskvalue(, P-mask value)) (;)
Set masks to specify which errors will cause the ERROR
LED to come on and bit 5 of the status byte to be set,
and to specify what conditions will cause a positive
response to a serial or parallel poll in an HP-GL
environment.
Purpose:
integers 0 through 255. If parameters omitted, masks are
set to 223,0 ,0, the default values.
Parameters:
The Initialize Instruction Page1-11
IN ;
Purpose: Sets the plotter to default conditions plus raises the
pen, sets the scaling points to P1 = 250,279 and
P2 = 10 250,7479, clears all HP-GL errors, sets bit 3 of
the output status byte to true (1), and reads setting of
paper switch.
The Input P1 and P2 Instruction
IP P1X, P1y(, P 2X,
Purpose:
Page 2-4
Sets scaling points.
Parameters: Integers in plotter units. Omitting parameters sets P1
and P2 to default Values, P1 = 250, 279, P2 = 10 250, 7479.
The Input Window Instruction Page2-9
IW Xlowerleft, Ylowerleft, Xupper right, Yupperright
Purpose: Sets window inside which plotting can occur.
Specify X— and Y-coordinates of lower—left a nd upper-right
corners of the window.
Parameters:
Omitting parameters sets window to maximum plotting
area, determined by the setting of the paper switch.
B-4 INSTRUCTION SYNTAX