Datron 1062 - Page 53

40
r
\
-
1
LOAD
DELAY
COUNTERS
1
r
LOAD
A-D
CONTROL CONDITIONS
trigger
1
^
1 ^ ^
COUNT
DOWN
DELAY COUNTERS
J
^
RESET
MAIN
COUNTERS
1 1
I
COUNT OUT
SIG PERIOD
COUNT
OUT
BIAS PERIOD
'
:
RESET COUNTERS
AND RESET NULL
DETECT CIRCUITRY
4
PRIMARY
COUNTER
RUNS
DURING REF 1
1
n
1
NULL DETECTED
AND
STOPS
PRIMARY COUNTER
1
\
\ 1
RESET
NULL
DETECT
CIRCUITRY
SECONDARY COUNTER
RUNS DURING REF 2
!
1
NULL DETECTED
b
STOPS SECONDARY
COUNTER
;
SEND
DATA READY
MESSAGE
AND
PUT
ANALOG
CIRCUIT INTO
RESET
1
i
PROCESSOR
EXTRACTS
DATA
FROM
MAIN
COUNTERS
CLEAR
DATA
READY
LINE
1
r
SIGNAL
A
B
c
RESET
1
1 0
SYNC
1
1 0
SIG
1
1
1
BIAS
0
1
1
WAIT
0
1 1 1
REF 1
1
0
1
REF
2
0
0
1
END
1
1 1
FIG.
3.42
A D
ANALOG SEQUENCE
CONTROL
SIGNALS
(
^
1061/A SELECTIONS Ml
3/M 14 COUNT
FUNCTION
RANGE FILTER FILTER
DCV All
Ranges 2 101
Option 12
ACV
All
Ranges 61
251
DCV
+
ACV
Option
10
ACV
DCV
+
ACV All Ranges 46 151
ACI
DCI
+
ACI
DCI 100LiA-1mA
2
10mA 3 101
100mA
5
1A
6
kOhms 10n-100ki^
2 101
1MJ2 4
121
10Mf2
31 251
V
FIG.
3.41 FLOWCHART OF
A-D DIGITAL SECTION
J
FIG. 3.43
COMMAND DELAYS
J