4 . 0 p e r ¿a t .1 n g p a n e 1 
45 
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ite ali 
The operating panel is accomodated as an operating and indicating 
unit in a separate housing. It consists of a single—board compu— 
t e r w i t h s e r i a 1 i n t e r f a c e a ni d 6 0 k e y s ( p a r t i all y w i. t h t w o a I 1 o c a — 
tions) , 4 hardware keys , 4 status indicators and a 20—digi t LED 
ci i s p 1 a y . i hi e o p e r a t i ri g k e y b o a r d i s s u b d i v i. d e d i n t o the toll o w i n g 
f u n c t i o n a 1 g r o u p s s 
iir ft. i,.ion keys for rapid image displacement 
> e 1. e c t i o i i o f c o o r d i n a t e s 
b e d i s p 3. a y e d 
keys for selecting the input elements (handwheel 
a n et f r e e h a n d c u r s o r ) a n d f o r t h e a 3. 1 o c a t i o n o . 
different translations to the input elements 
3 u k e? y s i n t w o 1 e v e 1 s ( f r e e 1 y a 1 1 o eatable) f o r 
i i "i p u t o f c o m m a n d s d u r i n g r e s t i t u t i. o n ( m a p p i n g 
c o m m a n d s , s y m b o Is e t c » ) 
1ogging keys 
s e 1 E' c t i o n k e v s w i t h i i 0 — k e v b o a r d 
tzf d ; d V £? 
The 
i operaiinq 
panel is situ 
i. n a t e s 
tat: 
ile in iron 
t o f t hi e c o m p u t ¡ 
eo xs 
i m i ted 
nr. 
...1 w 
Id or k statio 
n c o m p u t. e r w i t h 
-proof 
A \. 
3 e? r s o i " i a 1 c c 
j m p u t e r o f t ii e 
D c u 1 a r 
wo r 
kstai:ion c 
omouter. 
1 n a t E: d 
The 
:■ f o 3. .!. owino 
t e* c i"¡ n x c: a 1 r e ci u 
a r n s 
1 t y O f 
- 
two RS 232C ( 
p a !.. I ; 
1 O i "i o f 
C e n t r o r i i c is i n 11 
f i :■< e d—d i s k s t o 
s y s t e ri i 
a t 1 e a s t o n e d 
i NEG- 
¿c r i t hme t i c c o p 
a c e s a n d i n a d d x 1x o n a 
>ye 
560 
/20 kBvte 
main memory capacity 64-0 kByte 
— v i. s u a 3. g r a p h x c d i s p 1 a y 
— Mb DOS operating system, starting from version 3.0 
— printer with Centronics interface and If.44 character 
for the graphical output of the data gathered in the data collec 
tion for map compilation a D2 F c ?l2/RS or a plotter is needed in 
addition. 
6 „ F i r iii w a r e 
The control unit contains the entire internal control program for 
the analytical restitution instrument. It is based on the algo 
r i t h rn d e s c r i b e d i n /1 / a n d s t o r e d o n P R 0 M . 
The task sharing among the three computers is as follows: 
— Master 
k Operation of the serial interface to the workstation computer 
a n d 11 "i e o p e r a t i n g p a i i e 3. 
k Handling of the keyboard and updating of the display at the 
o p e r a t i n g p a n e 1 
k Handling of commands from the workstation computer 
k Data transfer to the workstation computer 
k Acceptance of coordinates from all input elements 
k u u i d a n c e o f c o o r d i n a t e s y s1 e m s 
k 1 e s t r o i...i t i n e s 
k f cd t a 1 s e g u. e n c e c o n t r o 1 
•4, U'l