Campbell Scientific CR800 and CR850 Measurement and Control Systems User Manual

Page 11

Table of Contents

7.8.2.9 Micro-Serial Server............................................................ 173

7.8.2.10 Modbus TCP/IP................................................................ 173

7.8.2.11 DHCP............................................................................... 173

7.8.2.12 DNS ................................................................................. 173

7.8.2.13 SMTP ............................................................................... 173

7.8.3 SDI-12 Sensor Support................................................................ 173

7.8.3.1 SDI-12 Transparent Mode.................................................. 174

7.8.3.1.1 SDI-12 Transparent Mode Commands..................... 175

7.8.3.2 SDI-12 Programmed Modes .............................................. 178

7.8.3.2.1 SDI-12 Recorder Mode ............................................ 178

7.8.3.2.2 SDI-12 Sensor Mode ................................................ 185

7.8.3.3 SDI-12 Power Considerations............................................ 186

7.8.4 Subroutines .................................................................................. 188

7.8.5 Wind Vector ................................................................................ 189

7.8.5.1 OutputOpt Parameters........................................................ 190

7.8.5.2 Wind Vector Processing..................................................... 190

7.8.5.2.1 Measured Raw Data ................................................. 191

7.8.5.2.2 Calculations .............................................................. 191

7.8.6 Custom Menus............................................................................. 194

7.8.7 Conditional Compilation ............................................................. 199

7.8.8 Serial I/O ..................................................................................... 201

7.8.8.1 Introduction........................................................................ 202

7.8.8.2 I/O Ports ............................................................................. 203

7.8.8.3 Protocols ............................................................................ 203

7.8.8.4 Glossary of Terms.............................................................. 204

7.8.8.5 CRBasic Programming ...................................................... 205

7.8.8.5.1 Input Instruction Set Basics...................................... 206

7.8.8.5.2 Input Programming Basics ....................................... 207

7.8.8.5.3 Output Programming Basics..................................... 208

7.8.8.5.4 Translating Bytes...................................................... 209

7.8.8.5.5 Memory Considerations ........................................... 210

7.8.8.5.6 Demonstration Program............................................ 211

7.8.8.6 Testing Applications .......................................................... 212

7.8.8.6.1 Configure HyperTerminal ........................................ 212

7.8.8.6.2 Create Send Text File ............................................... 215

7.8.8.6.3 Create Text-Capture File .......................................... 215

7.8.8.6.4 Serial Input Test Program......................................... 215

7.8.8.7 Q & A................................................................................. 221

7.8.9 TrigVar and DisableVar — Controlling Data Output and

Processing...................................................................................... 223

7.8.10 NSEC Data Type ....................................................................... 224

7.8.10.1 NSEC Options.................................................................. 225

7.8.11 Bool8 Data Type........................................................................ 228

7.8.12 Faster Measurement Rates......................................................... 232

7.8.12.1 Measurements from 1 Hz to 100 Hz ................................ 233

7.8.12.2 Measurement Rate: 101 to 600 Hz................................... 234

7.8.12.2.1 SubScan() / NextSubScan Details .......................... 235

7.8.12.3 Measurement Rate: 601 to 2000 Hz................................. 236

7.8.13 String Operations....................................................................... 237

7.8.13.1 String Operators ............................................................... 238

7.8.13.2 String Concatenation........................................................ 239

7.8.13.3 String NULL Character.................................................... 239

7.8.13.4 Inserting String Characters............................................... 240

7.8.13.5 Extracting String Characters ............................................ 240

7.8.13.6 String Use of ASCII / ANSII Codes ................................ 240

7.8.13.7 Formatting Strings............................................................ 241