Campbell Scientific CR3000 Micrologger User Manual
Page 10
Table of Contents
10
7.7.3.1 Numerical Formats............................................................. 117
7.7.3.2 Structure ............................................................................. 117
7.7.3.3 Command Line................................................................... 119
7.7.3.3.1 Multiple Statements on One Line ............................. 120
7.7.3.3.2 One Statement on Multiple Lines ............................. 120
7.7.3.4 Single-Line Declarations.................................................... 120
7.7.3.4.1 Variables................................................................... 120
7.7.3.4.2 Constants .................................................................. 127
7.7.3.4.3 Alias and Unit Declarations...................................... 129
7.7.3.5 Declared Sequences ........................................................... 130
7.7.3.5.1 Data Tables............................................................... 130
7.7.3.5.2 Subroutines ............................................................... 137
7.7.3.5.3 Incidental Sequences ................................................ 137
7.7.3.6 Execution and Task Priority............................................... 137
7.7.3.6.1 Pipeline Mode........................................................... 138
7.7.3.6.2 Sequential Mode....................................................... 139
7.7.3.7 Execution Timing............................................................... 140
7.7.3.7.1 Scan() / NextScan ..................................................... 141
7.7.3.7.2 SlowSequence / EndSequence.................................. 142
7.7.3.7.3 SubScan() / NextSubScan......................................... 142
7.7.3.7.4 Scan Priorities in Sequential Mode........................... 142
7.7.3.8 Instructions......................................................................... 144
7.7.3.8.1 Measurement and Data-Storage Processing.............. 144
7.7.3.8.2 Argument Types ....................................................... 145
7.7.3.8.3 Names in Arguments ................................................ 145
7.7.3.8.4 Expressions in Arguments ........................................ 146
7.7.3.8.5 Arrays of Multipliers and Offsets ............................. 146
7.7.3.9 Expressions ........................................................................ 147
7.7.3.9.1 Floating-Point Arithmetic......................................... 147
7.7.3.9.2 Mathematical Operations.......................................... 148
7.7.3.9.3 Expressions with Numeric Data Types..................... 148
7.7.3.9.4 Logical Expressions.................................................. 150
7.7.3.9.5 String Expressions .................................................... 152
7.7.3.10 Program Access to Data Tables ....................................... 153
7.7.3.11 System Signatures ............................................................ 155
7.7.4 Tips .............................................................................................. 155
7.7.4.1 Use of Variable Arrays to Conserve Code Space............... 155
7.7.4.2 Use of Move() to Conserve Code Space ............................ 155
7.8 Programming Resource Library ............................................................ 156
7.8.1 Calibration Using FieldCal() and FieldCalStrain()...................... 156
7.8.1.1 CAL Files........................................................................... 156
7.8.1.2 CRBasic Programming....................................................... 156
7.8.1.3 Calibration Wizard Overview ............................................ 157
7.8.1.4 Manual Calibration Overview............................................ 157
7.8.1.4.1 Single-Point Calibrations (zero, offset, or zero
basis) ................................................................................ 157
7.8.1.4.2 Two-point Calibrations (multiplier / gain)................ 158
7.8.1.5 FieldCal() Demonstration Programs .................................. 158
7.8.1.5.1 Zero or Tare (Option 0) ............................................ 159
7.8.1.5.2 Offset (Option 1) ...................................................... 160
7.8.1.5.3 Zero Basis (Option 4) ............................................... 162
7.8.1.5.4 Two-Point Slope and Offset (Option 2).................... 164
7.8.1.5.5 Two-Point Slope Only (Option 3) ............................ 166
7.8.1.6 FieldCalStrain() Demonstration Program .......................... 167
7.8.1.6.1 Quarter-Bridge Shunt (Option 13)............................ 170
7.8.1.6.2 Quarter-Bridge Zero (Option 10).............................. 170