Campbell 21X Návod k obsluze Strana 113
- Strana / 191
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
SECTION 10.
PROCESSING
INSTRUCTIONS
PAR.
DATA
NO.
TYPE
DESCRIPTION
01:
4 Input
location
no. of
atmospheric
pressure
in kilopascals
IPRESSURE]
02:
4
Input location
no.
of dry-bulb temp.
IDB
rEMP.l
03:
4
lnput
location no.
of wet-bulb
temp.
IWB
TEMP.]
04:
4
Dest.
input location
for vapor
pressure
Input
locations altered:
1
[VP
or Z]
***
58 LOW
PASS FILTER
***
FUNCTION
Apply
a
numerical
approximation
to an analog
resistor capacitor
(RC)
low
pass
(LP)
filter using
the following algorithm.
F(X;)
=
W*X;+
F(X;_1).
(1-W)
Where, X
=
inputsample,
W
=
user entered weighting
function,
o<w<1
lf W=O,
F(X|)=X1; if W=1
,
F(X|)=X,
F(Xi-1)
=
output calculated
for
previous
sample.
The
equivalent RC time
constant is
given
by
TAIV,
where
T is
the
sampling time in
seconds.
For values of W less
than 0.25,
the analogous
"cut
off"
frequency
(the
frequency
where the
ratio
of output
to input
is .707) is
accurately
represented by W/(2IIT). For
larger values of W,
this
"analog"
estimate
of the cutoff frequency
becomes
less representative.
On the first execution after
compiling, F(x)
is
set
equalto X.
PAR. DATA
NO.
TYPE DESCRIPTION
***
59 BRIDGE TRANSFORM
'**
FUNCTION
This instruction is used
to aid in the conversion
of
a
ratiometric Bridge measurement
by
obtaining
the value
for R. which
is equivalent
to
Rf[)V(1-X)], where X is
the
value
derived
by the
standard 21X Bridge Measurement Programs
(with
appropriate
multiplier
and otfset,
Section
13.5)
and R1 represents the MULTIPLIER
value
The result
of
Instruction
59
is
stored in the
same location that
X was.
PAR.
DATA
NO. TYPE
DESCRIPTION
Repetitions
Starting
input location and
01: 2
02: 4
destination
03: FP Multiplier
(Rf)
tx
IMULT.
01: 2
o2'. 4
03: 4
data
Repetitions
[REPS]
First
input location
for input data
txl
Dest. input
location
for filtered
lnput
locations altered:
1 for
each repetition
***
60 FAST
FOURIER TRANSFORM
***
THEORY
Instruction
60
performs
a
Fast
Fourier
Transform
(FFT)
on a set of data contained in
contiguous locations in Input Storage. The FFT
is
used to obtain
information
on the relative
magnitudes
and
phases
of
the
various f
components in
a
time
varying
signal. FFT
requires
that the
signal be
sampled at a
frequency
that
is at
least
two times faster
than
the highest frequency component in the signal.
For example,
a signal
representing ocean
with a maximum
frequency
of 0.125 Hz would
need to be sampled at a
rate
of 0.25 Hz or
greater.
The
measurements
must
be
made
at
the
appropriate sampling
rate
and stored in
contiguous
input
locations
before the FFT can
be applied. The
measured
data stored in
sequential input locations
is
also referred to as
the
"originaltime
series data".
The results
of the
FFT
can be expressed
as:
1)
the realand imaginary components, 2)
the
magnitude
and
phase
components, or 3)
the
power
spectra. The real and imaginary results
are analogous
to
the orthogonal
(east
and
representation
of
a wind vector.
The magnitude
and
phase
results are analogous to
the
polar
(speed
and direction)
representation
of a wind
vector. The
power
spectra results indicate
the
[F(X)
or z]
04:
FP
Weighting
function,
W
IWI
lnput
locations altered:
1 for
each repetition
10-6
- 21X MICROLOGGER 1
- OPERATOR'S 1
- CopynlcHT 1
- GAI\/ 2
- SiCIEN'rIFIC 2
- OPT1ONS 3
- 1. FUNCTIONAL 4
- 2. INTERNAL 4
- 4. EXTERNAL 4
- 5. TELECOMMUNICATIONS 4
- PROGRAMMING 5
- EXAMPLES 5
- GLOSSARY 6
- TABLE 6
- I SELECTED 7
- CAUTIONARY 8
- MICROLOGGER 9
- OVERVIEW 9
- I contain 9
- OVl-z. 21X Wiring 10
- 1. Input 11
- OV2-1. lnstruction Types 12
- 2. PROCqS$NG TNSTRUCTTONS 13
- OV3. PROGRAMMING 14
- 2. Enter 15
- 3. Loaded from 16
- (lD:Data) 17
- 21 .234oC 18
- Ffalstorage 19
- 0. The Output Flag is 22
- 1. On-line output 23
- 96 Inst. 96 24
- RETRIEVAL 25
- SPECIFICATIONS 26
- 1. FUNCTIONAL 27
- A PROGRAM 28
- COMPILING 29
- LOGGING 29
- Intermediate Final 30
- A O4:XXXX 31
- "B 32
- A 01:0p 33
- 2hex) Discard current 35
- 3hex) Send signature 35
- 4hex) Load 35
- 5hex) Exit and 35
- 2\ The output array 36
- 0.000 +0.001 37
- . For example 38
- This is 39
- 1. microvolts 40
- 333. microvolts 40
- 3.7 USE 41
- 3.8 PROGRAM 42
- 1. A Subroutine 43
- 3. An 43
- 4. A case 43
- 3.9 INSTRUCTION MEMORY 44
- TEMP-RTD R 44
- SDM-CD16 6 44
- 41 z+EXP(x) 45
- 1+bins*R 46
- ERRORICODES 47
- EXTERNAL 48
- STORAGE 48
- PERIPHERALS 48
- Key ID:DATA 49
- A. Data transfer 50
- Drain 200mA typ./S 51
- Length C-60 recommended 51
- Quality 51
- CABLES ] 52
- 3. Insert 53
- I 54
- 4, An illegal character 55
- Iffi l:ff itffi 56
- REMOTE PROGRAMMING 57
- 5. TELECOMMUMCATIONS 57
- PIN SERIAL 59
- PIN ABR UO 59
- 6.2 ENABLING 60
- 6.3 INTERRUPTING 60
- 6.5 INTERFACING WITH 60
- ABR YO FUNCTION 61
- 7 DATA BITS 62
- I AT IPS-2's and 63
- 7.2 DATALOGGER 64
- 7.3 THERMOCOUPLE 65
- 7.6 207 TEMPERATURE 66
- Thermocouple 66
- 02: P12 66
- TIPPING 67
- 1 P 3 68
- 5 0.254 68
- Temperature 69
- 7.10 1OO 69
- Temperature RTD 70
- R" 70
- 05: 5000 71
- ADJUSTABLE 72
- :calculated to 73
- P34 Z=X+F 73
- 7.15 NONLINEAR 74
- -218.76 75
- 55 Polynomial 76
- SpatialAverage 77
- 02: P92 78
- 8.3 USING CONTROL 79
- SETS 1_16 80
- Al Mode 81
- 02: 641 81
- Excite, Delay,Volt(S 82
- Temp 107 Probe 82
- TO 0.540 83
- DESCRIPTION 84
- M(V2) 38 85
- Block Move 86
- 0.'l 87
- 0.69215 88
- 02: 1024 89
- SII1ULATED 90
- 02; 2048 91
- 02". 2048 92
- ZLoc' 93
- 9. INPUT/OUTPUT 94
- 0.3 Hz to 1000 Hz 95
- Input locations altered: 1 97
- Input locatiQns altered: 98
- Input locations 99
- 9 Output 100
- TYPE DESCRIPTION 101
- 22 EXCITATION 102
- . Locations 1-20 103
- A Trigger 104
- 3. Entering 105
- (Parameters 106
- LOCATION, "** 108
- 40 LN(X) 109
- 46 x MOD F 110
- 54 BLOCK 111
- . The magnitude of 112
- 59 BRIDGE TRANSFORM 113
- 60 FAST 113
- 2X=Yag6ilude&Phase 114
- 10. PROCESSING 115
- 1.24H2 115
- F*1*19'*g'; 116
- *F*A/N<fi<i*F*A/N 116
- LOC. REPRESENTATIVE 117
- LOC. REPRESENT 117
- 126 50411024 or 1 117
- 2. The 21X 118
- 62 COVARIANCE/CORRELATION 118
- 1. Input Processing 119
- 2. Averaging 119
- 3. Output Processing 119
- 1. Means: 120
- I minute and one 120
- N' is 121
- Quadrant 121
- 11. OUTPUT 122
- 01: 2 Repetitions 123
- 02: 4 Starting input 123
- *" 124
- 2 Repetitions 125
- 4 Number 125
- 2 Form 125
- 78 SEll HIGH 126
- 80 SET ACTIVE 126
- Ct',1,t Cu,z cu,ru 127
- PROGRAM 129
- CONTROL 129
- 4 lteration count 130
- 10: P87 131
- NO. TYPE DESCRIPTION 132
- NO. TYPE 133
- ASCII 1 134
- Binary 2 134
- 0-RFModem 135
- 01: 4 Decimal 136
- 1 1200 136
- 2 9600 136
- 3 76.800 136
- SECTION 137
- 21X MEASUREMENTS 137
- Setup Amplifier Integrotion 138
- 13.3 THE 139
- Error Constants 140
- 1 3.3-1 1, respectively 140
- 8723 j 141
- 22 15 62 141
- Error 142
- 2) V" 143
- 5oo 18603 144
- Rr does 145
- 13.4 THERMOCOUPLE 146
- .--.--'-\ 147
- Junction 148
- Source Error 150
- 13.5 BRIDGE 151
- 5 v RANGE) 152
- (milliseconds) 153
- '1-X 154
- 13.6 RESIST 155
- Quiescent 156
- REQUIREMENTS 157
- 3. Typicalcurrent 157
- I alkaline 158
- MSX5 MSX10 159
- 14.5 DIRECT 159
- 14.7 USE 160
- 14.8 GROUNDING 160
- MAINTENANCE 161
- CALIBRATION 161
- 9. Lock 162
- 14. INSTALLATION 163
- *ffiqgffiililH 164
- A. GLOSSARY 165
- : A number which 167
- B. PROM SIGNATURES 168
- APPENDIX C 169
- TELECOMMUNICATIONS 169
- 00 00 00 170
- F 171
- C. BINARY TELECOMMUNICATIONS 171
- 51,S0 represent 172
- M represents 172
- C. BINARY 173
- APPENDIX 174
- ASCII TABLE 174
- E. CHANGING 175
- E.3 CHANGING 176
- F. DOCUMENTATION 177
- 3 Save Program on 178
- ""r-",=L 179
- ............8 180
- 14. INST 181
- "t=r",=L 182
- MEASUREMENTS 183
- 21X TNDEX 184
- 60] 10-6 185
- I nitiate Telecommunications 186
- 72j 11-3 189
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