Table of Contents
Advertisement
SECTION
8.
PROCESSING
AND PROGRAM CONTROL EXAMPLES
O4:
P54
01:
9
02:
12
03:
1
04:
11
05:
1
05:
P86
01:
10
06:
P70
01:
1
02"
2
Block Move
No. of Values
First
Source Loc Temo i-8
Source Step
First Destin. Loc [:Temp i-9
]
Destination Step
Do
Set high Flag
0 (output)
Sample
Rep
Loc
l0smplav
O7'.
P
End
Table
1
In
the above example, all samples for
the
average are
stored in input locations. This
is
necessary when an average must
be
output with
each new
sample.
In
most cases, averages are
desired less frequently
than
sampling.
For
example, it may be necessary to sample some
parameter every 5 seconds and output every
hour an average
of
the previous three hours
readings.
lf all samples were saved, this would
require 2160 input
locations. The same value
can
be
obtained by computing
an hourly
average and averaging
the hourly averages for
the past three
hours.
To do
this requires that
hourly averages be stored in input locations.
lnstruction
80 is used to send the
t
hour
average
to
Input Storage and again to send
the
3 hour average to Final Storage.
Input Location Labels:
1:AVG
i-2
2:AVG
i-1
3:AVG
i
4:3
HR
AVG
5:XX mg/M3
Table 1 Programs
Sec. Execution lnterval
Volt (DIFF)
Rep
5000 mV
slow Range
lN Chan
Loc
[:XX mg/M3
]
Mult
Offset
02:
P92
01:
0
O2:
60
03:
10
03:
P80
01:
3
02:
3
lf
time
is
minutes into
a
minute interval
Set high Flag
0 (output)
Set Active Storage Area
Input Storage Area
Array lD or location
Average
Rep
Loc
XX mg/M3
SpatialAverage
Swath
First Loc
AVG
i-2
Avg Loc [:3 HR AVG
]
Set Active Storage Area
Final Storage Area
Array lD or location
RealTime
Day,Hour-Minute
Sample
Rep
Loc
3 HR AVG
lf Flag
0 (output)
is
set
Then Do
Block Move
No. of Values
First Source Loc
AVG
i-1
Source Step
First Destin. Loc [:AVG
i-2
Destination Step
05:
P51
01:
3
02:
1
03:
4
04:
P71
01:
1
Q2:
5
06:
P80
01:
1
02;
25
07:
P77
01:
22O
08:
P7O
01:
1
02:
4
09:
P91
01:
10
o2'.
30
10:
P54
01:
2
02:
2
03:
1
O4:
1
05:
1
01:
01:
01:
02:
03:
04:
05:
06:
1
5
P2
1
5
3
5
10
0
11: P95
End
12:
P
End
Table
1
8.2
RAINFALL INTENSITY
In
this example, the
total
rain
for
the last
15
minutes
is
output only if
any rain has occurred.
The program makes use
of
the capability
to
direct
the output of Output Processing
Instructions
to
Input Storage.
Every 15 minutes, the
total rain
is
sent
to Input
Storage.
lf
the total is not equal to 0,
output
is
8-2
Advertisement
Table of Contents
