Campbell CR850 - Figure 92: Pulse-Sensor Output Signal Types; Figure 93: Switch-Closure Pulse Sensor

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Section 8. Operation

298

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instruction. PulseCount() instruction functions include returning counts or

frequency on frequency or switch-closure signals. TimerIO() instruction has

additional capabilities. Its primary function is to measure the time between state

transitions.

Note Consult CRBasic Editor Help for more information on PulseCount() and

TimerIO() instructions.

Figure 92: Pulse-sensor output signal types

Figure 93: Switch-closure pulse sensor

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Default Chapter5
- About this Manual5
- Table of Contents7
- C Rbasic Example 42. Using Trigvar to Trigger Data Storage 224
Section 1. Introduction27
- Hello27
- Typography27
Section 2. Cautionary Statements29
Section 3. Initial Inspection31
Section 4. Quickstart Tutorial33
- Primer - CR800 Data-Acquisition33
List of Figures34
List of Tables37
- Hands-On: Measuring a Thermocouple43
Section 5. System Overview57
- CR800 Datalogger58
- Datalogger Support Software76
Section 6. CR800 Specifications79
Section 7. Installation81
- Moisture Protection81
- Temperature Range81
- Enclosures81
- Power Sources82
- CR800 Configuration92
- Programming Resource Library151
Section 8. Operation269
- Voltage270
- Figure 85: PGI Amplifier271
- Figure 86: PGIA with Input Signal Decomposition271
- Input Limits271
- Reducing Error272
- Measurement Sequence273
- Measurement Accuracy274
- Timing274
Section 9. Maintenance397
- Moisture Protection397
- Replacing the Internal Battery397
- Figure 124: Loosening Retention Nuts398
- Table 105. Internal Lithium-Battery Specifications398
- Figure 125: Pulling Edge Away from Panel399
- Figure 126: Removing Nuts to Disassemble Canister399
- Repair400
- Figure 127: Remove and Replace Battery400
Section 10. Troubleshooting403
- Status Table403
- Operating Systems403
- Programming403
- Communications411
- Power Supplies414
- Terminal Emulator421
Section 11. Glossary425
- Terms425
- Concepts449
  - Accuracy, Precision, and Resolution449
Appendix A. Crbasic Programming Instructions451
- Program Declarations451
  - Variable Declarations & Modifiers452
  - Constant Declarations453
- Data-Table Declarations453
  - Data-Table Modifiers453
  - Data Destinations454
  - Final Data Storage (Output) Processing455
    - Single-Source455
    - Multiple-Source456
- Single Execution at Compile457
- Program Control Instructions457
  - Common Program Controls457
  - Advanced Program Controls460
- Measurement Instructions461
  - Diagnostics461
  - Voltage462
  - Thermocouples462
  - Resistive-Bridge Measurements462
  - Excitation463
  - Pulse and Frequency463
  - Digital I/O464
    - Control464
    - Measurement464
  - 465465
  - Specific Sensors465
    - Wireless Sensor Network467
  - Peripheral Device Support468
- Processing and Math Instructions470
  - Mathematical Operators470
  - Arithmetic Operators471
  - Bitwise Operators471
  - Table 112. Arithmetic Operators471
  - Compound-Assignment Operators472
  - Table 113. Compound-Assignment Operators472
  - Logical Operators473
  - Trigonometric Functions474
  - Arithmetic Functions475
  - Integrated Processing477
  - Spatial Processing478
  - Other Functions479
    - Histograms479
- String Functions480
  - String Operations480
  - String Commands481
- Clock Functions483
- Voice-Modem Instructions485
- Custom Keyboard and Display Menus486
- Serial Input / Output487
- Peer-To-Peer Pakbus Communications488
- Variable Management492
- Table 115. Asynchronous-Port Baud Rates492
- File Management493
- Data-Table Access and Management495
- Information Services496
- Modem Control499
- Scada499
- Calibration Functions500
- Satellite Systems501
  - Argos501
  - Goes502
  - Omnisat502
  - Inmarsat-C503
- User Defined Functions503
Appendix B. Status Table and Settings505
- Table 116. Common Uses of the Status Table505
- Table 117. Status-Table Fields and Descriptions506
- Table 118. CR800 Settings518
Appendix C. Serial Port Pinouts527
- CS I/O Communications Port527
- Communications Port527
  - Pin-Out527
  - Power States528
Appendix D. ASCII / ANSI Table531
Appendix E. FP2 Data Format535
Appendix F. Other Campbell Scientific Products537
- Sensors537
  - Wired Sensors Types537
  - Wireless Sensor Network538
- Sensor Input Modules538
- Cameras540
- T Able 132. Voltage Dividers 5540
- Control Output Modules541
- Dataloggers541
- Power Supplies542
- Enclosures544
- Telecommunications Products545
- Data Storage Devices546
- Data Acquisition Support Software546
Index551

Campbell CR850 - Figure 92: Pulse-Sensor Output Signal Types; Figure 93: Switch-Closure Pulse Sensor

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