Controls And Indicators And Their Functions - HP 7475a Operation And Interconnection Manual

Y
I
I +
I
I
L +x
I
I
I
I
I
P l
�
_ _ _ _ _ _ _ _ _ _ _ _
LL (O . O OR1GIN)
DEFAULT ORI ENTATION
Controls and Indicators and Their
Functions
In addition to the '"
are three categories of operator controls: front panel, configuration, and
interface.
Front-panel controls are used to toggle between either ANSI A and B or
ISO A4 and A3 paper sizes, to manually control pen and paper move­
ment, and to change the locations of scaling points PI and P2. They
can also be used for interaction with a running program . This interac­
tion includes entry of digitized points, pen selection, and program
suspension without loss of data. All front-panel controls are common to
both Hp·JB and RS·232·C interface options.
Configuration controls consist of two switches on the rear panel. These
switches determine the power-up default paper size, hard-clip limits,
and PI/P2 coordinate values. The switches are common to both HP-IB
and RS·232·C interface options.
Interface controls establish the conditions under which communication
between the plotter and computer will occur. Different interface controls
are required for the HP-IB and RS-232-C interface options.
All operator controls, including the controls which are unique to the
Hp·JB and RS·232·C interface options, are shown in the following illus·
tration. Individual controls and indicators are shown adjacent to their
functional descriptions.
2·14 PLOTTEIl OPERATION
UA
I
I
J
_ _
LIMITS AND
INPUT WIN DOW
HP-GL R090 Rotation on AI A4 Size Paper
power switch and paper loading lever, there
LINE
(0 , 0
LL ORIGIN)
r-
- -
Pl
I I
I
I
I I
1
'-INPUT
r + Y i
+x
I
90
ROTATED DEGREES
WINDOW
HARD-ClIP
LIMITS