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.
I
J
..
·r
.·.r
1
]
Model l l l 80A
STD RAGE ENABLED
1 5 1
204068
STORAGE
l.D.
L.,JJ
TENS CHANNEL
1.0.
l
~
RANGE
POLARITY AND
OVERLOAD
STORAGE NOT ENABLED
x
5 1 1 2 0 4 0 6 8
RANDOM
NUMBER
JI
l
~
RANGE
CHANNEL 1.0
.
BACKWARDS
II llOA-1-2521
POLARITY AND
OVERLOAD
Figure 3-10. The Printer Format.
3-23. When the number of channels to be scanned does not
equal the Storage Limit, grounding Storage Enable will
cause Data Storage to jump to an output cycle after the last
channel has been scanned as shown in Figure 3-11. The
reading on the last channel is repeated until the Storage
Limit is reached as shown in the printout in Figure 3-12.
Table 3-6.
Decoding Output Information for the 3485A Scanning Unit.
Range
Code
100 mV
0
1000 mV
1
lOV
2
Polarity/Overload
Code
POSITIVE
0
NEGATIVE
1
POSITIVE OVERLOAD
2
NEGATIVE OVERLOAD
3
Section III
PROGR AM INITIATE (TO
SCAN
NER
)
17
TRI
GG
ER
S
LAST CHANN
EL
"'
17
JUMP FR
OM
SCANNER TO
I
c::
STORAGE
STAR TS
OUTPUT
~CYC
LE
5µs
16TO
20µs
STORAG
E
FLAG (FROM OVM)
/\
r"'i
______;_.,;..__;___~u·
. .-----~u-0
0 0
PRINTE
R
HOLD-OFF (TO
OVM)
LJooo
STORAGE EN ABLE
(GRO
UNDED
)
SCANNER ENABLE (GR OUNDED
)
STORAGE LIMIT
"20"
LINE (GROUNDED
)
11180A-
B-25
22
20 READING GATED OUT
STO
RA GE LIMIT
" 20
Figure 3-11. Data Storage Used with the 3485A
Scanning Unit.
Data Storage used with the 3485A Scanning Unit where a
non -multiple of 10 channels
is·
scanned, in this case, 17
channels.
Scanner Enable must be grounded. When Chan:iel 17 is reached,
storage jumps ahead to the Storage Limit
setting,
in this case
20.
Outputting begins with the 17th reading repeated 3 times for a total
of 20 readings.
17th READING
{
2
000112
3
41
REPEATED
l 9 0 0 1 1
2 3
4 1
3 TIMES
1 8 0 0 1 1
2 3
4 1
1710112
3
41
LAST CHANNEL/ 1 6 1 0 1 0 9 7 7 4
1510100167
1410111245
1310009467
1210201140
1 l 1 0 1 0 1 4 2 l
1010210456
090101
1
992
0801001875
0700200509
0600111121
0501110025
0401101125
0301201489
0200001232
0100101379
STOR::J
L
READING
l.D.
TENSCHANNELl
.D.
RANGE
POLARITY /OVER LOAD
lllSOA-B-2523
Figure 3-12. Jump Printout.
The 3485A Scanning Unit used with Storage in a 2070A Data
Logger for
scanning
17
channels
(Storage
Limit= 20;
Last
Channel = 17). Scanner Enable must be grounded so that the
scanner may issue a Jump when 17 channels have been scanned.
Note that the 17th reading is repeated 3 times
.
The Tens Channel
l.D. reverts to zero during the repeated readings.
3-7
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