Campbell CR7 Bedienerhandbuch Seite 176
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LIST OF TABLES
LT-2
5. TELECOMMUNICATIONS
5.1-1 Telecommunication Commands ............................................................................................ 5-2
6. 9 PIN SERIAL INPUT/OUTPUT
6.1-1 Pin Description ....................................................................................................................... 6-1
6.5-1 DTE Pin Configuration ........................................................................................................... 6-3
8. PROCESSING AND PROGRAM CONTROL EXAMPLES
8.6-1 Example Sensor Description and 21X Multiplier and Offset .................................................. 8-6
8.6-2 Example Outputs and Input Storage Locations...................................................................... 8-7
8.6-3 Example Input Channel and Location Assignments............................................................... 8-7
9. INPUT/OUTPUT INSTRUCTIONS
9-1 Input Voltage Ranges and Codes .......................................................................................... 9-1
9-2 Pulse Count Configuration Codes.......................................................................................... 9-3
9-3 Thermocouple Type Codes.................................................................................................... 9-6
10. PROCESSING INSTRUCTIONS
10-1 Maximum Number of Outputs and Output Order for K Input Values ................................... 10-8
12. PROGRAM CONTROL INSTRUCTIONS
12-1 Flag Description ................................................................................................................... 12-1
12-2 Command Codes ................................................................................................................. 12-1
12-3 Loop Example: Block Data Transform ................................................................................ 12-3
12-4 Example: Loop With Delay Execution Interval = 10 seconds.............................................. 12-3
12-5 Comparison Codes .............................................................................................................. 12-4
13. CR7 MEASUREMENTS
13.3-1 Exponential Decay, Percent of Maximum Error vs. Time in Units of τ................................. 13-4
13.3-2 Properties of Three Belden Lead Wires Used by Campbell Scientific................................. 13-5
13.3-3 Settling Error, in Degrees, for 024A Wind Direction Sensor vs. Lead Length...................... 13-6
13.3-4 Measured Peak Excitation Transients for 1000 Foot Lengths of Three Belden
Lead Wires Used by Campbell Scientific ............................................................................. 13-6
13.3-5 Summary of Input Settling Data for Campbell Scientific Resistive Sensors ........................ 13-7
13.3-6 Maximum Lead Length vs. Error for Campbell Scientific Resistive Sensors ....................... 13-8
13.3-7 Source Resistances and Signal Levels for YSI #44032 Thermistor Configurations
Shown in Figure 13.3-7 ........................................................................................................ 13-9
13.4-1 Limits of Error for Thermocouple Wire............................................................................... 13-12
13.4-2 Limits of Error on CR7 Thermocouple Polynomials ........................................................... 13-13
13.4-3 Reference Temperature Compensation Range and Polynomial Error Relative to
NBS Standards................................................................................................................... 13-14
13.4-4 Example of Errors in Thermocouple Temperature............................................................. 13-14
13.5-1 Comparison of Bridge Measurement Instructions.............................................................. 13-17
13.5-2 Calculating Resistance Values from Bridge Measurement................................................ 13-18
- INSTRUCTION MANUAL 1
- WARRANTY AND ASSISTANCE 3
- CR7 OPERATOR'S MANUAL 5
- TABLE OF CONTENTS 5
- OVERVIEW 5
- PROGRAMMING 6
- DATA RETRIEVAL/COMMUNICATION 6
- PROGRAMMING EXAMPLES 7
- INSTRUCTIONS 7
- INSTALLATION 8
- APPENDICES 8
- SELECTED OPERATING DETAILS 9
- CAUTIONARY NOTES 10
- OV1. PHYSICAL DESCRIPTION 11
- OV2. MEMORY AND PROGRAMMING 13
- CONCEPTS 13
- 720 I/O MODULE 14
- OV3. PROGRAMMING THE CR7 17
- OV4. PROGRAMMING EXAMPLE 19
- 32 give the 20
- , advance to next 21
- OV5. DATA RETRIEVAL OPTIONS 25
- 700X CONTROL MODULE 26
- OV6. SPECIFICATIONS 27
- SECTION 1. FUNCTIONAL MODES 29
- CLOCK - *5 MODE 30
- MEMORY OR FLAGS - *6 MODE 30
- 1.5 MEMORY ALLOCATION - *A 32
- STATUS - *B 33
- 1.7 *C MODE -- SECURITY 34
- 1.8 *D MODE -- SAVE OR LOAD 35
- ARRAYS, AND MEMORY POINTERS 39
- 2.2 DATA OUTPUT FORMAT AND 40
- RANGE LIMITS 40
- KEYBOARD/DISPLAY - *7 MODE 41
- 3.1 PARAMETER DATA TYPES 43
- 3.2 REPETITIONS/CARD NUMBER 43
- 3.4 INDEXING INPUT LOCATIONS 44
- 3.5 VOLTAGE RANGE AND 44
- OVERRANGE DETECTION 44
- 3.6 OUTPUT PROCESSING 44
- PROGRAM CONTROL 45
- 3.8 PROGRAM CONTROL LOGICAL 46
- CONSTRUCTIONS 46
- 3.9 INSTRUCTION MEMORY AND 48
- EXECUTION TIME 48
- 3.10 ERROR CODES 51
- 4.1 ON-LINE DATA TRANSFER 53
- INSTRUCTION 96, *4 MODE 53
- 4.2 MANUALLY INITIATED DATA 54
- OUTPUT - *9 MODE 54
- 4.3 STORAGE MODULE 55
- 4.4 PRINTER OUTPUT FORMATS 56
- 5.1 TELECOMMUNICATIONS 59
- COMMANDS 59
- 6.1 PIN DESCRIPTION 63
- SILICON PYRANOMETER 69
- 7.2 DIFFERENTIAL VOLTAGE 69
- MEASUREMENT 69
- USING 723-T REFERENCE 70
- USING AN EXTERNAL REFERENCE 70
- JUNCTION 70
- DIFFERENTIAL TEMPERATURE 71
- 7.5 THERMOCOUPLES FOR 71
- THERMOCOUPLES 72
- 7.7 107 TEMPERATURE PROBE 73
- 7.9 ANEMOMETER WITH 74
- PHOTOCHOPPER OUTPUT 74
- 7.10 TIPPING BUCKET RAINGAGE 74
- WITH LONG LEADS 74
- 7.14 PRESSURE TRANSDUCER - 4 78
- WIRE FULL BRIDGE 78
- 7.17 NONLINEAR THERMISTOR IN 82
- HALF BRIDGE (CAMPBELL 82
- SCIENTIFIC MODEL 101) 82
- 8.1 COMPUTATION OF RUNNING 83
- 8.2 RAINFALL INTENSITY 84
- SYNCHED TO REAL TIME 85
- 8.4 ANALOG OUTPUT TO STRIP 86
- 8.5 CONVERTING 0-360 WIND 87
- DIRECTION OUTPUT TO 0-540 FOR 87
- STRIP CHART 87
- Parameters 6 101
- SECTION 13. CR7 MEASUREMENTS 125
- LENGTH ON THE SIGNAL SETTLING 127
- /(R ( )) 129
- 13.4 THERMOCOUPLE 135
- MEASUREMENTS 135
- 13.5 BRIDGE RESISTANCE 139
- Excitation 141
- Measurement Sequence 141
- 13.6 RESISTANCE MEASUREMENTS 143
- REQUIRING AC EXCITATION 143
- MULTIPLE I/O MODULES 144
- SECTION 14. INSTALLATION 145
- AND OPTIONS 146
- 14.3 HUMIDITY EFFECTS AND 149
- 14.4 RECOMMENDED GROUNDING 149
- PRACTICES 149
- 14.5 USE OF DIGITAL CONTROL 150
- PORTS FOR SWITCHING RELAYS 150
- 15.1 I/O CARD IDENTIFICATION 151
- NUMBER DECODING 151
- APPENDIX A. GLOSSARY 159
- This is a blank page 162
- WITH STANDARD SOFTWARE 163
- C.1 TELECOMMUNICATIONS 165
- COMMAND WITH BINARY 165
- RESPONSES 165
- C.2 FINAL STORAGE FORMAT 167
- D.1 VOLTAGE REFERENCE 171
- CALIBRATION PROCEDURE 171
- D.2 CLOCK CALIBRATION 172
- PROCEDURE 172
- FIGURE D.2-2. CR7X CPU Card 174
- LIST OF TABLES 175
- LIST OF FIGURES 177
- 13. CR7 MEASUREMENTS 178
- 14. INSTALLATION 178
- CR7 INDEX 179
- CR7 INDEX 186
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