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Appendix B. Entering SDI-12 Commands/Changing Settings

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Summary of Contents for C477

Page 1: ...CS475 CS476 and C477 Radar Water Level Sensor Revision 1 10 C o p y r i g h t 2 0 0 9 2 0 1 0 C a m p b e l l S c i e n t i f i c I n c ...

Page 2: ...nternational customers residing in countries served by Campbell Scientific Inc directly Affiliate companies handle repairs for customers within their territories Please visit www campbellsci com to determine which Campbell Scientific company serves your country To obtain a Returned Materials Authorization RMA contact CAMPBELL SCIENTIFIC INC phone 435 753 2342 After an applications engineer determi...

Page 3: ...rument Housing Adjustment 8 4 Wiring 9 4 1 Datalogger Connection 9 4 2 Multiple Sensors Connection 9 4 3 Built in Self Test BIST 9 5 Configuration 10 5 1 Default Settings 10 5 2 Startup Procedure 10 5 2 1 Start False Echo Learn 10 5 2 2 Set Water Stage 11 6 Programming 12 6 1 CRBasic 12 6 1 1 Example Program 13 6 2 Edlog 14 6 2 1 Example Program 15 7 Diagnostics Repair and Maintenance 16 7 1 Testi...

Page 4: ...g A 2 List of Tables 3 1 Description of Components and Hardware Labels 5 3 2 Radiation Beam Spread for CS475 10 Beam Angle 7 3 3 Radiation Beam Spread for CS476 CS477 8 Beam Angle 7 3 4 Description of Polarization Markings Labels 8 4 1 Wiring Diagram 9 5 1 Default Settings 10 5 2 Example of a Start False Echo Learn Command 11 5 3 Example for Setting Water Stage 12 6 1 SDI 12 Command Codes 13 7 1 E...

Page 5: ...ensors output a digital SDI 12 signal to indicate distance and stage This output is acceptable for recording devices with SDI 12 capability including Campbell Scientific dataloggers Compatible dataloggers include our CR200 X series CR800 series CR1000 CR3000 CR5000 CR510 and CR10X Three sensor models are available that differ in their measurement range and accuracy The CS475 can measure distances ...

Page 6: ...easurement Range CS475 2 inch to 65 ft 50 mm to 20 m CS476 2 inch to 98 ft 50 mm to 30 m CS477 16 inch to 229 ft 400 mm to 70 m Accuracy CS475 20 inch to 65 ft 0 2 inch 5 mm CS476 20 inch to 98 ft 0 1 inch 3 mm CS477 20 inch to 230 ft 0 6 inch 15 mm Resolution 0 0033 ft 1 mm Output Protocol SDI 12 2 ...

Page 7: ...ith 12 V power supply Sleeps 4 7 mA Measurement 14 mA Environmental Operating Temperature Range 40 to 80 C Storage Ranges Temperature 40 to 80 C Relative Humidity 20 to 80 RH Temperature Sensitivity average TK 2 mm 10 K max 5 mm over the entire temperature range of 40 to 80 C Vibration Resistance Mechanical vibrations with 4 g and 5 to 100 Hz Mechanical Rating NEMA 4x Housing Aluminum coated IP66 ...

Page 8: ...s present no danger to people It is the responsibility of the user to ensure that the sensors are maintained and functioning properly 3 2 Unpacking Equipment When unpacking the equipment do the following Unpack the unit in a clean dry area Inspect the equipment for any damage that occurred during shipping or storage If the equipment is damaged file a claim against the carrier and report the damage...

Page 9: ...Protective Shield 1 Mounting Loop 2 PULS Housing Side Cap 3 PULS Housing Cap 4 PULS Unit Secondary 1 2 NPT Cable Port Primary Port on Opposite Side 5 PULS Instrument Horn 6 5 8 Hex Head Cap Screw Lock Washer 7 Swivel Mounting Flange 8 Upper Shield 9 Upper Shield Twist Lock Tab 3x 10 Mounting Base 11 1 2 NPT Mounting Base Cable Entry Port 12 Lower Shield Locking Tab 13 Notch in Lower Shield Mountin...

Page 10: ...or perform maintenance on the sensor WARNING 4 Install the sensor above the smoothest part of the water surface The smoothest part of the water surface is typically found halfway between bridge piers However bridges with long spans between the piers experience more vibration For these bridges vibration can be minimized by mounting the sensor a quarter to a third of the distance to the next pier NO...

Page 11: ... bridge piers can distort or disturb water level 3 5 Sensor Mounting 3 5 1 Vertical Alignment Use a user supplied bubble level or the 25619 bubble level to make certain the antenna horn is aligned within 1 of vertical The cap needs to be removed when using the 25619 If the antenna is not vertical a trigonometric measurement error can occur with respect to the water The maximum range is reduced bec...

Page 12: ...ns TABLE 3 4 Description of Polarization Markings Labels Sensor Description 1 CS475 Polarization marks are designated by the mounting loop screws 2 CS476 CS477 Polarization mark is machine tooled 3 6 Instrument Housing Adjustment After mounting you can rotate the housing up to 350 to simplify access to the conduit entry and terminal compartment Proceed as follows to rotate the housing to the desir...

Page 13: ... Numbered Control Port C1 C3 Odd Numbered Control Port C1 C3 SDI 12 C1 SDI 12 clear Chassis ground G red 12V power supply for sensor 12V 12V 12V 12V Battery black ground G G G G 4 2 Multiple Sensors Connection To use more than one probe per datalogger you can either connect the different probes to different SDI 12 compatible ports on the datalogger or change the SDI 12 addresses of the probes and ...

Page 14: ...n command is an essential function during the setup of the sensor see Section 5 2 1 3 Enter the current water level using the Set Water Stage command followed by a Send Data command see Section 5 2 2 4 Refer to Appendix B if you want to change defaults for the address units of measure water conditions and power operation mode 5 Program the datalogger to measure the sensor see Section 6 5 2 1 Start...

Page 15: ... cr lf Where from left to right 0 sensor s address 2 500 the water surface distance 5 2 2 Set Water Stage The settings are changed using the 25616 Adjustment Display Module or the terminal emulator in LoggerNet or PC400 During normal communication the datalogger sends the address together with a command to the sensor The sensor then replies with a response NOTE With the Set Water Stage command you...

Page 16: ...r program to measure this sensor can be created using Campbell Scientific s Short Cut Program Builder software You do not need to read this section to use Short Cut The radar sensor s output is measured using a standard SDI 12 instruction to read the data from an SDI 12 sensor If using the sensor with other SDI 12 recorders please refer to your system s documentation Further details of the SDI 12 ...

Page 17: ...ter is the address of the sensor that will be affected by this instruction Valid addresses are 0 through 9 A through Z and a through z Alphabetical characters should be enclosed in quotes e g 0 SDICommand The SDICommand parameter is used to specify the command strings that will be sent to the sensor The command should be enclosed in quotes See Table 6 1 shows the specific SDI 12 Command Codes and ...

Page 18: ...dlog include the CR500 CR510 CR10 X and CR23X These dataloggers use Instruction 105 to read the sensor Instruction 105 allows data to be collected from the radar sensor each sensor requires a separate Instruction 105 Instruction 105 has the following parameters Parameter 1 Address Valid addresses are 0 through 9 65 through 90 decimal value for ASCII upper case letters and 97 through 122 decimal va...

Page 19: ... permanently NOTE CR10X Table 1 Program 01 60 Execution Interval seconds 1 SDI 12 Recorder P105 1 0 SDI 12 Address 2 0 Start Measurement aM0 3 1 Port this is where the white wire is connected 4 1 Loc Data_1 5 1 0 Mult 6 0 0 Offset Table 2 Program 02 0 000 Execution Interval seconds Table 3 Subroutines End Program After Instruction 105 is executed the input location called Data_1 will hold the meas...

Page 20: ... 1 5 8 Use the Get Water Condition command to ensure that the water condition fit the body of water you are monitoring see Section 7 1 6 9 Use the Get Power Operation mode to ensure that the power mode is what you want see Section 7 1 7 10 Use the False Echo Learn command if you encounter a problem that could be caused by noise see Section 5 2 1 7 1 1 Start Measurement Command The 25616 Adjustment...

Page 21: ...er of values that will be placed in the buffer Subsequent Command Response 0D0 Where the first zero is the sensor address 0 100 050 25 000 0 cr If Where from left to right 0 sensor s address 100 050 the stage in meters or feet 25 000 the distance in meters or feet 0 error code 7 1 2 Check Unit Response The Acknowledge Active command is used to check the presence of the sensor on the bus see Table ...

Page 22: ...to produce and send a small fixed size checksum of a larger block of data to the datalogger This checksum detects errors after transmission or storage The CRC is computed and added before any transmission or storage The CRC is also authenticated by the recipient after the transmission to confirm that no alterations occurred CRCs are very good at identifying errors caused by noise in transmission c...

Page 23: ...10000 3320000 cr If Where from left to right 0 sensor s address 0 CRC check 0 OK 1610000 adapter version 1 61 00 00 3320000 sensor version 3 32 00 00 7 1 5 Get Units Use the aXGU command to get the current units setting of the sensor The units can be either feet or meters If the units are feet a 1 will be returned and if the units are meters a 0 will be returned 7 1 6 Get Water Conditions The aXGW...

Page 24: ... of 108003 where approximately 80 seconds is the required time to complete the BIST Built in Self Test of the instrument After power up is complete normal SDI 12 communication starts 7 2 1 No Measured Value Available Error E013 If you are unable to find a measured value check the following Sensor in boot phase Update the Start False Echo Learn aXSFEL 7 2 2 No Measured Value Available Error E041 E0...

Page 25: ... will remain nested with the electronics 4 Gently remove the electronics B from the housing Some friction is normal when removing the electronics because a seal is between the electronics and the lower portion of the housing NOTE 5 Replace the electronics with a new module Make sure the two 2 screws holding the electronics module in are tight but do not over tighten Over tightening these screws ca...

Page 26: ... 4 5 FIGURE 7 1 Changing the Electronics see Table 7 5 for label descriptions TABLE 7 5 Description of Changing the Electronics Labels Description 1 Red Wire 2 Housing Top View 3 Screws to Secure Electronics to Housing 4 Electronics 5 Housing Side View 22 ...

Page 27: ...CS475 CS476 and CS477 Radar Water Level Sensor 7 3 Maintenance The sensors are maintenance free under normal operation 23 ...

Page 28: ...CS475 CS476 and CS477 Radar Water Level Sensor 24 ...

Page 29: ...minals with a screwdriver 7 Insert the wire ends into the open terminals Connect the Power Supply 12 Vdc to the terminals marked 1 Connect the Power Supply Ground to the terminals marked 2 Connect the Data Line to the terminals marked 3 data 8 Press the opening lever of the terminal down You will hear the terminal spring closed 9 Check that the wires are firmly connected in the terminal by lightly...

Page 30: ...ns C Typical SDI 12 Network Configuration D DIS61 Optional Reference V 2799S0 1 Inner Housing Connections Modular Plug Mounted in Dual Chamber Housing Plugs into Back of SDI 12 Board 2 SDI 12 Data 3 Ground Connection 4 Data Acquisition Device 5 Serial Data Line 6 12V Ground 7 12V Line 8 SDI 12 Sensor 1 9 SDI 12 Sensor 2 10 Ground Connection 11 To Instrument 12 Remote Display 13 Ground Connection 1...

Page 31: ...dress The following ASCII Characters are valid addresses 0 9 AZ a z Sensors are initially programmed at the factory with the address of 0 for use in single sensor systems Addresses 1 to 9 and A to Z or a to z are used for additional sensors connected to the same port Where a is the sensor address 0 9 A Z a z M is an upper case ASCII character Is the last character of a command block cr lf Are carr...

Page 32: ...rements and Request CRC aCC1 aCC9 Start False Echo Learn aXSFEL n n distance necessary to clear the obstruction Set Power n Operation Mode ON OFF AUTO aXSPOM n n 2 auto 1 on or 0 off Get Power Operation Mode ON OFF AUTO aXGPOM 2 auto 1 on 0 off Get Water Conditions aXGWC n 0 auto 1 smooth 2 medium or 3 rough Set Water Conditions Where n is the new Water Condition aXSWC n n 0 auto 1 smooth 2 medium...

Page 33: ...s and 1 is the new address 1 cr If The new address 1 is set in response B 1 2 Set Units The distance measurement can be reported in feet default or meters Change the units by first using the aXSU n command where n 1 feet or 0 meters followed by the aXGU Get Units command Table B 3 shows an example of the command and response for changing this setting TABLE B 4 Example of Setting Units Initial Comm...

Page 34: ...ple of the command and response for changing this setting TABLE B 5 Example for Setting Water Conditions Initial Command Response 0XSWC 2 Where 0 sensor s address 2 the new water condition setting 2 medium 00011 cr If Where from left to right 0 sensor s address 001 the amount of time in seconds that you must wait before sending another command 1 the number of values that will be placed in the buff...

Page 35: ...quiescent mode between measurement request queries Change this setting by first using the aXSPOM n command where n 1 on 2 auto or 0 off followed by the aXGPOM Get Power Mode command Table B 6 shows an example of the command and response for changing this setting TABLE B 6 Example for Setting Power Operation Mode Initial Command Response 0XSPOM 2 Where 0 sensor s address 2 the new power mode settin...

Page 36: ...Appendix B Entering SDI 12 Commands Changing Settings B 6 ...

Page 37: ...Campbell Scientific will cause the expiration of the operating license issued by the FCC IC The radar sensor is in conformity with Part 15 of the FCC directives and fulfills the RSS 210 regulations Regulations for operation include These devices must not cause any interfering emissions These devices must accept any interfering emissions received including interference that may cause unwanted opera...

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Page 40: ...da Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Santo Domingo Heredia 40305 COSTA RICA www campbellsci cc info campbellsci cc Campbell Scientific Ltd CSL Campbell Park 80 Hathern Road Shepshed Loughborough LE12 9GX UNITED KINGDOM www campbellsci co uk sales c...

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