Document Outline

• Revision and Copyright Information
• Warranty and Assistance
• CR7 OPERATOR'S MANUALTABLE OF CONTENTS
  • OVERVIEW
  • PROGRAMMING
  • DATA RETRIEVAL/COMMUNICATION
  • PROGRAMMING EXAMPLES
  • INSTRUCTIONS
  • MEASUREMENTS
  • INSTALLATION
  • APPENDICES
• SELECTED OPERATING DETAILS
• CAUTIONARY NOTES
• CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEW
  • OV1. PHYSICAL DESCRIPTION
    • OV1.1 700X CONTROL MODULE
    • OV1.2 720 I/O MODULE
    • OV1.3 ENCLOSURES AND CONNECTOR OPTIONS
  • OV2. MEMORY AND PROGRAMMING CONCEPTS
    • OV2.1 INTERNAL MEMORY
    • OV2.2 CR7 INSTRUCTION TYPES
    • OV2.3 PROGRAM TABLES AND THE EXECUTION AND OUTPUT INTERVALS
      • OV2.3.1 THE EXECUTION INTERVAL
      • OV2.3.2 THE OUTPUT INTERVAL
  • OV3. PROGRAMMING THE CR7
    • OV3.1 FUNCTIONAL MODES
    • OV3.2 KEY DEFINITION
    • OV3.3 PROGRAMMING SEQUENCE
    • OV3.4 INSTRUCTION FORMAT
    • OV3.5 ENTERING A PROGRAM
  • OV4. PROGRAMMING EXAMPLE
    • OV4.1 MEASUREMENT
    • OV4.2 OUTPUT
    • OV4.3 EDITING AN EXISTING PROGRAM
    • OV4.4 EDLOG PROGRAM LISTING
  • OV5. DATA RETRIEVAL OPTIONS
  • OV6. SPECIFICATIONS
• SECTION 1. FUNCTIONAL MODES
  • 1.1 PROGRAM TABLES - *1, *2, AND *3 MODES
    • 1.1.1 EXECUTION INTERVAL
    • 1.1.2 SUBROUTINES
    • 1.1.3 TABLE PRIORITY/INTERRUPTS
    • 1.1.4 COMPILING A PROGRAM
  • 1.2 SETTING AND DISPLAYING THE CLOCK - *5 MODE
  • 1.3 DISPLAYING AND ALTERING INPUT MEMORY OR FLAGS - *6 MODE
    • 1.3.1 DISPLAYING AND ALTERING INPUT STORAGE
    • 1.3.2 DISPLAYING AND TOGGLING USER FLAGS
    • 1.3.3 DISPLAYING AND TOGGLING PORTS
  • 1.4 COMPILING AND LOGGING DATA - *0 MODE
  • 1.5 MEMORY ALLOCATION - *A
    • 1.5.1 INTERNAL MEMORY
    • 1.5.2 *A MODE
  • 1.6 MEMORY TESTING AND SYSTEM STATUS - *B
  • 1.7 *C MODE -- SECURITY
  • 1.8 *D MODE -- SAVE OR LOAD PROGRAM
    • 1.8.1 TRANSFER TO COMPUTER/PRINTER
    • 1.8.2 PROGRAM TRANSFER WITH STORAGE MODULE
• SECTION 2. INTERNAL DATA STORAGE
  • 2.1 FINAL STORAGE AREAS, OUTPUT ARRAYS, AND MEMORY POINTERS
  • 2.2 DATA OUTPUT FORMAT AND RANGE LIMITS
    • 2.2.1 RESOLUTION AND RANGE LIMITS
    • 2.2.2 INPUT AND INTERMEDIATE STORAGE DATA FORMAT
  • 2.3 DISPLAYING STORED DATA ON KEYBOARD/DISPLAY - *7 MODE
• SECTION 3. INSTRUCTION SET BASICS
  • 3.1 PARAMETER DATA TYPES
  • 3.2 REPETITIONS/CARD NUMBER
  • 3.3 ENTERING NEGATIVE NUMBERS
  • 3.4 INDEXING INPUT LOCATIONS
  • 3.5 VOLTAGE RANGE AND OVERRANGE DETECTION
  • 3.6 OUTPUT PROCESSING
  • 3.7 USE OF FLAGS: OUTPUT AND PROGRAM CONTROL
    • 3.7.1 THE OUTPUT FLAG
    • 3.7.2 THE INTERMEDIATE PROCESSING DISABLE FLAG
    • 3.7.3 USER FLAGS
  • 3.8 PROGRAM CONTROL LOGICAL CONSTRUCTIONS
    • 3.8.1 IF THEN/ELSE COMPARISONS
    • 3.8.2 END, INSTRUCTION 95
    • 3.8.3 NESTING
  • 3.9 INSTRUCTION MEMORY AND EXECUTION TIME
  • 3.10 ERROR CODES
• SECTION 4. EXTERNAL STORAGE PERIPHERALS
  • 4.1 ON-LINE DATA TRANSFER - INSTRUCTION 96, *4 MODE
    • 4.1.1 INSTRUCTION 96
    • 4.1.2 *4 MODE
  • 4.2 MANUALLY INITIATED DATA OUTPUT - *9 MODE
    • 4.2.1 MANUAL STORAGE MODULE OR PRINTER DUMP - *9 MODE
  • 4.3 STORAGE MODULE
    • 4.3.1 USE OF TWO STORAGE MODULES
    • 4.3.2 STORAGE MODULE USE WITH INSTRUCTION 96
    • 4.3.3 *9 DUMP TO STORAGE MODULE
  • 4.4 PRINTER OUTPUT FORMATS
• SECTION 5. TELECOMMUNICATIONS
  • 5.1 TELECOMMUNICATIONS COMMANDS
  • 5.2 REMOTE PROGRAMMING OF THE CR7
• SECTION 6. CS I/O 9 PIN SERIAL INPUT/OUTPUT
  • 6.1 PIN DESCRIPTION
  • 6.2 ENABLING PERIPHERALS
  • 6.3 INTERRUPTING DATA TRANSFER TO STORAGE PERIPHERALS
  • 6.4 TELECOMMUNICATIONS - MODEM PERIPHERALS
  • 6.5 INTERFACING WITH COMPUTERS, TERMINALS, AND PRINTERS
    • 6.5.1 SC32A INTERFACE
    • 6.5.2 COMPUTER/TERMINAL REQUIREMENTS
    • 6.5.3 COMMUNICATION PROTOCOL/TROUBLE SHOOTING
• SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES
  • 7.1 SINGLE ENDED VOLTAGE - LI200S SILICON PYRANOMETER
  • 7.2 DIFFERENTIAL VOLTAGE MEASUREMENT
  • 7.3 THERMOCOUPLE TEMPERATURES USING 723-T REFERENCE
  • 7.4 THERMOCOUPLE TEMPERATURES USING AN EXTERNAL REFERENCE JUNCTION
  • 7.5 THERMOCOUPLES FOR DIFFERENTIAL TEMPERATURE MEASUREMENT
  • 7.6 TEMPERATURE WITH CALIBRATED THERMOCOUPLES
  • 7.7 107 TEMPERATURE PROBE
  • 7.8 207 TEMPERATURE AND RH PROBE
  • 7.9 ANEMOMETER WITH PHOTOCHOPPER OUTPUT
  • 7.10 TIPPING BUCKET RAINGAGE WITH LONG LEADS
  • 7.11 100 OHM PRT IN 4 WIRE HALF BRIDGE
  • 7.12 100 OHM PRT IN 3 WIRE HALF BRIDGE
  • 7.13 100 OHM PRT IN 4 WIRE FULL BRIDGE
  • 7.14 PRESSURE TRANSDUCER - 4 WIRE FULL BRIDGE
  • 7.15 LYSIMETER - 6 WIRE LOAD CELL
  • 7.16 227 GYPSUM SOIL MOISTURE BLOCK
  • 7.17 NONLINEAR THERMISTOR IN HALF BRIDGE (CAMPBELL SCIENTIFIC MODEL 101)
• SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES
  • 8.1 COMPUTATION OF RUNNING AVERAGE
  • 8.2 RAINFALL INTENSITY
  • 8.3 SUB 1 MINUTE OUTPUT INTERVAL SYNCHED TO REAL TIME
  • 8.4 ANALOG OUTPUT TO STRIP CHART
  • 8.5 CONVERTING 0-360 WIND DIRECTION OUTPUT TO 0-540 FOR STRIP CHART
  • 8.6 COVARIANCE CORRELATION PROGRAMMING EXAMPLE
• SECTION 9. INPUT/OUTPUT INSTRUCTIONS
• SECTION 10. PROCESSING INSTRUCTIONS
• SECTION 11. OUTPUT PROCESSING INSTRUCTIONS
• SECTION 12. PROGRAM CONTROL INSTRUCTIONS
• SECTION 13. CR7 MEASUREMENTS
  • 13.1 FAST AND SLOW MEASUREMENT SEQUENCE
  • 13.2 SINGLE ENDED AND DIFFERENTIAL VOLTAGE MEASUREMENTS
  • 13.3 THE EFFECT OF SENSOR LEAD LENGTH ON THE SIGNAL SETTLING TIME
    • 13.3.1 THE INPUT SETTLING TIME CONSTANT
    • 13.3.2 EFFECT OF LEAD LENGTH ON SIGNAL RISE TIME
    • 13.3.3 TRANSIENTS INDUCED BY SWITCHED EXCITATION
    • 13.3.4 SUMMARY OF SETTLING ERRORS FOR CAMPBELL SCIENTIFIC RESISTIVE SENSORS.
  • 13.4 THERMOCOUPLE MEASUREMENTS
    • 13.4.1 ERROR ANALYSIS
    • 13.4.2 USE OF EXTERNAL REFERENCE JUNCTION OR JUNCTION BOX
  • 13.5 BRIDGE RESISTANCE MEASUREMENTS
  • 13.6 RESISTANCE MEASUREMENTS REQUIRING AC EXCITATION
  • 13.7 PULSE COUNT MEASUREMENTS
• SECTION 14. INSTALLATION
  • 14.1 ENVIRONMENTAL ENCLOSURE, CONNECTORS AND JUNCTION BOXES
    • 14.1.1 ACCESS PORTS FITTED WITH ELBOWS
    • 14.1.2 SOCKET CONNECTORS
    • 14.1.3 JUNCTION BOXES
  • 14.2 SYSTEM POWER REQUIREMENTS AND OPTIONS
    • 14.2.1 POWER SUPPLY AND AC CHARGER
    • 14.2.2 SOLAR PANELS
    • 14.2.3 EXTERNAL BATTERY CONNECTION
    • 14.2.4 CONNECTING TO VEHICLE POWER SUPPLY
    • 14.2.5 SAFETY PRECAUTIONS
  • 14.3 HUMIDITY EFFECTS AND CONTROL
    • 14.3.1 DESICCANT
    • 14.3.2 GAS-TIGHT ENVIRONMENT
    • 14.3.3 NITROGEN PURGING
  • 14.4 RECOMMENDED GROUNDING PRACTICES
    • 14.4.1 PROTECTION FROM LIGHTNING
    • 14.4.2 EFFECT ON MEASUREMENTS: COMMON MODE RANGE
  • 14.5 USE OF DIGITAL CONTROL PORTS FOR SWITCHING RELAYS
• 15. I/O CARD ADDRESSING AND MULTIPLE I/O MODULES
  • 15.1 I/O CARD IDENTIFICATION NUMBER DECODING
    • 15.1.1 ASSIGNING CARD IDENTIFICATION NUMBERS
    • 15.1.2 PLACING JUMPERS IN THEIR PROPER LOCATIONS
  • 15.2 USE OF MULTIPLE I/O MODULES
    • 15.2.1 PROGRAMMING CONSIDERATIONS
    • 15.2.2 SETTING BAUD RATE BETWEEN I/O AND CONTROL MODULES
• APPENDIX A. GLOSSARY
• APPENDIX B. CR7 PROM SIGNATURES FOR SYSTEMS EQUIPPED WITH STANDARD SOFTWARE
• APPENDIX C. BINARY TELECOMMUNICATIONS
  • C.1 TELECOMMUNICATIONS COMMAND WITH BINARY RESPONSES
  • C.2 FINAL STORAGE FORMAT
    • C.3 GENERATION OF SIGNATURE
• APPENDIX D. CALIBRATION PROCEDURES
  • D.1 VOLTAGE REFERENCE CALIBRATION PROCEDURE
  • D.2 CLOCK CALIBRATION PROCEDURE
• LIST OF TABLES
• LIST OF FIGURES
• CR7 INDEX