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Section 8. Processing and Math Instructions
8-16
LOGN( x ) = LOG10( x ) / LOG10( n )
LOG10 Function Example
This example uses the LOG10 instruction to calculate the log base 2 of 1000.
Dim LOG2_1000 'Declare variables.
LOG2_1000 = LOG10(1000)/ LOG10(2)
MemoryTest
(Dest)
Stores the results of the most recent memory test in a variable.
Syntax
MemoryTest (Dest)
Remarks
The CR5000 tests CPU RAM and Task Sequencer memory when it compiles
and runs a program. MemoryTest stores the results of this compile test in a
variable
Parameter
& Data Type
Enter
Dest The variable in which to store the results of the memory test
Variable Result Meaning
0 No problems found
1 Error in CPU RAM
2 Error in Task Memory
3 Error in both CPU RAM and Task Memory
MaxSpa (Dest, Swath, Source)
Finds the maximum value in an array.
Syntax
MaxSpa(Dest, Swath, Source)
Remarks
Find the maximum value in the given array and place the result in the variable
named in Dest. The Source must be a particular element in an array (e.g.,
Temp(1)); it is the first element in the array
Parameter
& Data Type
Enter
Dest
Variable
The variable in which to store the maximum.
Swath
Constant
The number of values of the source array in which to search for the
maximum.
Source
Array
The name of the variable array that is the input for the instruction.
- CR5000 Measurement and 1
- Control System 1
- Warranty and Assistance 2
- TABLE OF CONTENTS 3
- APPENDIX 4
- CR5000 MICROLOGGER 6
- OV2.1 Memory 9
- OV2.3 Data Tables 10
- OV3.2 PC9000 Installation 10
- OV3.3.1 File 13
- OV3.3.2 Edit 13
- OV4. Keyboard Display 15
- OV4.1 Data Display 16
- OV4.1.1 Real Time Tables 17
- CR5000 Overview 18
- OV4.2 Run/Stop Program 20
- OV4.3 File Display 21
- OV4.3.1 File: Edit 22
- OV4.4 Configure Display 23
- OV5. Specifications 24
- 1.2 Power Requirements 25
- 1.3 CR5000 Power Supplies 26
- 1.4 Solar Panels 28
- BOOST REGULATOR 29
- 1.7 CR5000 GROUNDING 30
- CR5000 ICROLOGGER 31
- 1.10 Maintenance 36
- BATTERY2 38
- (datalogger/cr5000) 38
- 2.1 Data Storage in CR5000 41
- 2.2 Internal Data Format 42
- 2.3 Data Collection 43
- 2.3.1.1 File Type 44
- 2.3.1.2 Collection Method 44
- 2.3.1.3 Table Selection 45
- 2.3.1.4 File Control 45
- 2.3.2 RealTime Write File 46
- 2.3.3 Logger Files Retrieve 47
- 2.3.4 Via PCMCIA PC Card 47
- 2.4 Data Format on Computer 50
- 2.4.2 TOA5 ASCII File Format 51
- 3.1.1 Voltage Range 55
- 3.1.4 SettlingTime 57
- 3.1.5 Integration 57
- Measurements 58
- 3.3 Signal Settling Time 59
- 3.4.1 Error Analysis 62
- Thermocouple Limits of Error 65
- Noise on Voltage Measurement 67
- Error Summary 69
- CR5000 Junction Box 70
- 3.7 Pulse Count Measurements 74
- 3.8 Self Calibration 75
- 4.1 Format Introduction 77
- 4.2 Programming Sequence 78
- 4.3 Example Program 80
- CallTable Temp 82
- 4.4 Numerical Entries 83
- 4.6 Flags 84
- 4.7 Parameter Types 85
- 'Calibration factors: 86
- Station Name 91
- Sub, Exit Sub, End Sub 91
- Subroutine Example 93
- 6.1 Data Table Declaration 95
- 6.2 Trigger Modifiers 96
- OpenInterval 97
- FillStop 99
- 6.3 Export Data Instructions 102
- TableOption 103
- BufferControl 103
- Highlimit, MinAmp, Form) 118
- Code Form 119
- Constant 119
- Measured raw data: 123
- 7.8 Digital I/O 128
- 7.9 Peripheral Devices 128
- 7.1 Voltage Measurements 129
- Integ, Mult, Offset) 130
- 7.3 Half Bridges 131
- 7.4 Full Bridges 134
- 7.5 Current Excitation 137
- 7.7 Self Measurements 141
- Calibrate (Dest, AllRanges) 142
- ± 10 mV) and resolution 146
- Silicon diodes 146
- . Resistor 146
- PortGet (Dest, Port) 147
- PortSet (Port, State) 148
- Pulse Channel 149
- PulseCountReset 151
- ReadIO (Dest, Mask) 151
- TimerIO 153
- WriteIO (Mask, Source) 154
- SDMAddress 156
- SEG TSEG q22 158
- Parameter 160
- & Data Type 160
- Description 165
- Result 167
- SDMSpeed (BitPeriod) 168
- SDMTrigger 168
- ValuesPerRep 170
- This is a blank page 172
- Instructions 173
- ACOS (Source) 174
- ASIN (Source) 175
- ATN (Source) 176
- AvgSpa (Dest, Swath, Source) 177
- Cos (Source) 179
- CosH (Source) 179
- Variable or 180
- Frac (Source) 183
- Int, Fix 186
- Log (Source) 187
- LOG10 (number) 187
- MemoryTest 188
- MaxSpa (Dest, Swath, Source) 188
- MinSpa (Dest, Swath, Source) 189
- Move (Dest, Swath, Source) 190
- Randomize 194
- RealTime 195
- RectPolar (Dest, Source) 196
- RMSSpa (Dest, Swath, Source) 197
- RND (Source) 197
- Sgn (Source) 201
- Sin (Source) 201
- SinH (Source) 202
- Sqr (Source) 202
- StdDevSpa 203
- Tan (Source) 203
- TANH (Source) 204
- Derived Math Functions 205
- Section 9. Program Control 207
- CallTable 208
- Data, Read, Restore 209
- ClockSet 209
- Delay (Option, Delay, Units) 210
- FileManage 212
- FileMark (TableName) 213
- For ... Next Statement 213
- Power Off 217
- RunDLDFile 218
- Reset Table 219
- Select Case Statement 221
- Slow Sequence 223
- While…Wend 227
- This is a blank 236
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