Campbell CR800 Series - Page 12

Table of Contents
12
7.6.2.1 Short Cut Programming Wizard .................................... 122
7.6.2.2 CRBasic Editor .............................................................. 122
7.6.2.2.1 Inserting Comments into Program ...................... 123
7.6.2.2.2 Conserving Program Memory ............................. 124
7.6.3 Programming Syntax ................................................................ 124
7.6.3.1 Program Statements ....................................................... 124
7.6.3.1.1 Multiple Statements on One Line ....................... 125
7.6.3.1.2 One Statement on Multiple Lines ....................... 125
7.6.3.2 Single-Statement Declarations ....................................... 125
7.6.3.3 Declaring Variables ....................................................... 126
7.6.3.3.1 Declaring Data Types ......................................... 127
7.6.3.3.2 Dimensioning Numeric Variables ....................... 131
7.6.3.3.3 Dimensioning String Variables ........................... 132
7.6.3.3.4 Declaring Flag Variables .................................... 132
7.6.3.4 Using Variable Pointers ................................................. 133
7.6.3.5 Declaring Arrays ............................................................ 134
7.6.3.5.1 Advanced Array Declaration .............................. 135
7.6.3.6 Declaring Local and Global Variables ........................... 136
7.6.3.7 Initializing Variables...................................................... 136
7.6.3.8 Declaring Constants ....................................................... 137
7.6.3.8.1 Predefined Constants .......................................... 138
7.6.3.9 Declaring Aliases and Units........................................... 138
7.6.3.10 Numerical Formats ........................................................ 139
7.6.3.11 Multi-Statement Declarations ........................................ 140
7.6.3.11.1 Declaring Data Tables ......................................... 141
7.6.3.11.2 Declaring Subroutines ......................................... 148
7.6.3.11.3 Declaring Subroutines ......................................... 149
7.6.3.11.4 Declaring Incidental Sequences .......................... 149
7.6.3.12 Execution and Task Priority........................................... 150
7.6.3.12.1 Pipeline Mode ..................................................... 151
7.6.3.12.2 Sequential Mode ................................................. 152
7.6.3.13 Execution Timing .......................................................... 153
7.6.3.13.1 Scan() / NextScan ............................................... 153
7.6.3.13.2 SlowSequence / EndSequence ............................ 154
7.6.3.13.3 SubScan() / NextSubScan ................................... 155
7.6.3.13.4 Scan Priorities in Sequential Mode ..................... 155
7.6.3.14 Programming Instructions .............................................. 157
7.6.3.14.1 Measurement and Data Storage Processing ........ 157
7.6.3.14.2 Argument Types.................................................. 158
7.6.3.14.3 Names in Arguments ........................................... 158
7.6.3.15 Expressions in Arguments ............................................. 159
7.6.3.16 Programming Expression Types .................................... 160
7.6.3.16.1 Floating-Point Arithmetic ................................... 160
7.6.3.16.2 Arithmetic Operations ......................................... 161
7.6.3.16.3 Expressions with Numeric Data Types ............... 161
7.6.3.16.4 Logical Expressions
............................................ 163
7.6.3.16.5 String Expressions .............................................. 166
7.6.3.17 Programming Access to Data Tables ............................. 167
7.6.3.18 Programming to Use Signatures .................................... 169
7.6.3.19 Functions (with a capital F) ........................................... 169
7.6.4 Sending CRBasic Programs ..................................................... 170
7.6.4.1 Preserving Data at Program Send .................................. 170
7.7 Programming Resource Library ...................................................... 171
7.7.1 Advanced Programming Techniques........................................ 171
7.7.1.1 Capturing Events ........................................................... 171