Rice Lake Static Weighing - Manual (Page 66)

62 CW-90/90X Checkweigher
9.4 Continuous Output (Stream) Format
Figure 9-1 shows the continuous output format sent to a CW-90/CW-90X port when that port’s TRIGGE parameter
(SERIAL menu) is set to STREAM.
ASCII 02
(decimal)
Weight data: 7 digits, right-justified, with
decimal point, leading zero supression.
Overload = &&&&&&&
Underrange = = = = = = = =
Display overflow = OVERFL
L = pounds
K = kilogram
G = grams
O = ounces
G = Gross
N = Net
Status:
<space > = valid
I = Invalid
M = Motion
O = Over/under range
Polarity:
< space > = Positive
<–> = Negative
<^> = Overload
<]> = Underrange
or
ASCII 13, 10
(decimal)
= lb/oz
Figure 9-1. Continuous Output Data Format
9.5 Digital Filtering
The CW-90/CW-90X uses averaged digital filtering to reduce the effect of vibration on weight readings. Adjustable
threshold and sensitivity functions allow quick settling by suspending filter averaging, allowing the weight reading
to jump to the new value. Figure 9-2 shows the digital filter parameters on the CONFIG menu.
DFLTR1
64
128
4
16
8
32
256
DFSENS DFTHRH
32OUT
64OUT
2OUT
8OUT
4OUT
16OUT
128OUT
20D
50D
250D
5D
2D
10D
100D
NONE
200D 1
2
DFLTR2
64
128
4
16
8
32
256
1
2
DFLTR3
64
128
4
16
8
32
256
1
2
Figure 9-2. Digital Filtering Parameters on the Configuration (CONFIG) Menu
DIGFL1= n1 DIGFL2= n2 DIGFL3= n3
3rd Stage 2nd Stage 1st Stage
Filter Average
Displayed
Value
n2
1st Stage
Filter Averages
n1
A/D Readings
n3
2nd Stage
Filter Averages
Filter Average Filter Average
Figure 9-3. Flow Diagram for CW-90/CW-90X Digital Filters