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Campbell SAT HDR GOES Instruction Manual

High data rate goes transmitter
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SAT HDR GOES TRANSMITTER
INSTRUCTION MANUAL
REVISION: 1/04
COPYRIGHT (c) 2000-2004 CAMPBELL SCIENTIFIC, INC.

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Summary of Contents for Campbell SAT HDR GOES

  • Page 1 SAT HDR GOES TRANSMITTER INSTRUCTION MANUAL REVISION: 1/04 COPYRIGHT (c) 2000-2004 CAMPBELL SCIENTIFIC, INC.
  • Page 2 This is a blank page.
  • Page 3 CAMPBELL SCIENTIFIC, INC. CAMPBELL SCIENTIFIC, INC. will return such products by surface carrier prepaid. This warranty shall not apply to any CAMPBELL SCIENTIFIC, INC. products which have been subjected to modification, misuse, neglect, accidents of nature, or shipping damage. This warranty is in lieu of all other warranties, expressed or implied, including warranties of merchantability or fitness for a particular purpose.
  • Page 4 This is a blank page.

  • Page 5: Table Of Contents

    4.3.12 Serial Time Out................11 4.3.13 SDI-12 Settings ................11 4.3.14 Debug..................11 4.4 Transfer the Configuration Information to the SAT HDR GOES...11 4.5 Using DCPComm for SAT HDR GOES Setup and Testing....12 4.5.1 Terminal Window .................12 4.5.2 Write Data to Self-timed or Random Buffer .........12 4.5.3 Read Data from SAT HDR GOES..........12...
  • Page 6 5.2.1 Buffer Control ................16 5.2.2 Data Format.................. 16 5.2.3 P126 Result Codes................ 16 5.3 Read Status and Diagnostic Information from the SAT HDR GOES ..18 5.3.1 Program Instruction 127 ............... 18 5.3.2 P127 Status Commands Explained..........18 5.4 Programming Examples ................. 23 5.4.1 Using P126 ...................
  • Page 7 5.3-2. P127 Command 1: Read Status ............19 5.3-3. P127 Command 2: Read Last Message Status........19 5.3-4. P127 Command 3: Initiate Random Transmission ......20 5.3-5. P127 Command 4: Read SAT HDR GOES Error Registers....20 5.3-6. Error Codes..................21 5.3-7. P127 Command 5: Clear Error Registers ...........22 5.3-8.
  • Page 8 SAT HDR GOES Transmitter Table of Contents This is a blank page.

  • Page 9: Introduction

    100 BPS Random DCPRS Certification Standard - November 1981 • SDI-12, A Serial-Digital Interface Standard for Microprocessor-based Sensors version 1.2 - October 21, 1996. High data rates are supported. The SAT HDR GOES includes 4 serial communication ports: • CS I/O for Campbell dataloggers.

  • Page 10: Goes System

    SAT HDR GOES. 2.3 Data Retrieval Data retrieval via the SAT HDR GOES and the GOES system is illustrated in Figure 2-1. The DAPS User Interface Manual, provided by NOAA/ NESDIS, describes the process of retrieving the data from the NESDIS ground station.

  • Page 11: Sat Hdr Goes Functions

    3. SAT HDR GOES Functions 3.1 LED Function The SAT HDR GOES has one, tri-color LED. The color of the LED and the state: on, flashing or off, indicates the state of the SAT HDR GOES transmitter. When power is first applied to the SAT HDR GOES, the LED will cycle through the three colors: red, green and yellow.

  • Page 12: Status Switch

    SAT HDR GOES will wake up and display the current status of the SAT HDR GOES by flashing the LED. The LED will flash for ten seconds. Green indicates all systems good. Yellow indicates a past fault condition, same as a flashing yellow after power up.

  • Page 13: Auxiliary Port

    GPS fix. The GPS connector is an OSX (MCX) jack. The GPS receiver uses an active 3.3 V, 13 dB gain ceramic patch antenna. The GPS antenna gain at the SAT HDR GOES GPS input must be between 12 and 18 dB for proper GPS reception.

  • Page 14: Sat Hdr Goes Label

    You must consider the current travels from the battery, to the transmitter and back to the battery. The SAT HDR GOES will operate with a battery voltage range from 9.6 V to 16 V. A fully charged lead acid battery will have a voltage of about 12.5 V. If the battery is fully charged, a 3 V drop along the battery leads will stop the transmitter from transmitting.

  • Page 15: Sat Hdr Goes Connectors

    CS I/O SDI-12 with SDI-12 sensors in applications without dataloggers. CS I/O Port: Auxiliary RS-232 I/O Port: Communicates with Campbell Used to communicate with non- Scientific dataloggers via the Campbell Scientific dataloggers SC12 cable FIGURE 3-2. SAT HDR GOES Connectors...

  • Page 16: Dcpcomm

    The SAT HDR GOES has non-volatile memory to store the setup information. The setup information is entered in the SAT HDR GOES with a computer running DCPComm software. DCPComm software is a 32-bit windows application.

  • Page 17: Making Edits

    SAT HDR GOES Transmitter 4.3 Making Edits Edits are made in the Value column. Only white fields may be changed. Gray fields are set at the factory. 4.3.1 Platform ID Starting from the top of the configuration table, select the “Value” field for Platform ID number.

  • Page 18: Baud Rate

    4.3.9 Random Configuration The random interval is the average time between random transmissions. When the SAT HDR GOES receives data in the random data buffer, a random transmission is scheduled. After the first transmission, the transmitter will select a pseudo random time somewhere within the random interval. This process is repeated until the datalogger removes the data from the random buffer.

  • Page 19: Communication Port Type

    The sample interval is how often the SAT HDR GOES will query each sensor. The offset is the time after midnight of the first sample. The SAT HDR GOES does not wait for midnight to start the offset.

  • Page 20: Using Dcpcomm For Sat Hdr Goes Setup And Testing

    The menu item Terminal has several functions that can be used to interrogate the SAT HDR GOES. To use the terminal window, use a standard serial cable to connect the serial port of the computer to the Configuration port of the SAT HDR GOES.

  • Page 21: Sdi-12 Transparent Mode

    All errors should be investigated. Many times a simple GPS fix error is not a problem, unless the system routinely has trouble acquiring a GPS fix. The SAT HDR GOES requires a regular GPS fix for proper operation.

  • Page 22: Deciding How Much Data Will Be Transmitted And When

    ASCII data formats require 7 bytes per data point. Second, binary data must be decoded after transmission, ASCII does not. The datalogger formats the data before the data is sent to the SAT HDR GOES. The data format is chosen with the P126 program instruction.

  • Page 23: Managing Data, Writing More Data Than Will Be Transmitted

    SAT HDR GOES Transmitter The high data rate specification allows the data to be encrypted for transmission. The SAT HDR GOES must know the data format to apply the encryption. The data format chosen with the P126 instruction must match the data format chosen in the DCPComm configuration file.

  • Page 24: Buffer Control

    Buffer control has two purposes: 1) to determine which buffer data is written to, and 2) if the buffer is erased before data is written. The SAT HDR GOES has two independent buffers, one for self-timed transmissions and one for random transmissions.

  • Page 25: P126 Result Codes

    SAT HDR GOES Transmitter 1) CS I/O is checked to see if serial port is available. If not, return code 6. 2) The transmitter is addressed and should return the STX character within 200 msec. If there is no response from the transmitter, result code is 2. If something other than the STX character is received, result code is 3.

  • Page 26: Read Status And Diagnostic Information From The Sat Hdr Goes

    1) Datalogger will retrieve information from the SAT HDR GOES transmitter. 2) Datalogger will initiate a test transmission on a random channel. 3) Datalogger will reset the error register of the SAT HDR GOES 4) Return SAT HDR GOES to on-line mode following a forced random transmission.

  • Page 27: P127 Command 0: Read Time

    SAT HDR GOES Transmitter TABLE 5.3-1. P127 Command 0: Read Time In Loc Contents Command Result Code Hours (GMT) Minutes Seconds 5.3.2.2 P127, Command 1: Read Status Read Status Command provides information specific to the next scheduled or random transmission, including the amount of data in the buffers and power supply voltage.

  • Page 28: P127 Command 3: Initiate Random Transmission

    SAT HDR GOES must be put back on line with command 6. When command 6 is used, all data in the SAT HDR GOES is erased. Random transmission may require up to five minutes (GPS timeout) for setup and transmission.

  • Page 29: Error Codes

    0x16 SWR fault – transmission antenna connection The SAT HDR GOES has 9 registers used to store information about errors that have occurred. The total number of errors is stored, up to 255. Also stored is the command that was issued when the error occurred and a code specific to the type or error.

  • Page 30: P127 Command 5: Clear Error Registers

    Error code 20 (0x14) is the Failsafe error. The failsafe is an internal hardware circuit that will shut down the SAT HDR GOES if it transmits too frequently or for too long. The failsafe error code is not logged until the transmitter tries to transmit after the failsafe has been tripped.

  • Page 31: Programming Examples

    SAT HDR GOES Transmitter 5.3.2.7 P127, Command 6: Return SAT HDR GOES to on-line mode. Command 6 is used to return the SAT HDR GOES to online mode. Typically used after a forced random transmission. The SAT HDR GOES has an off-line time-out of one hour.
  • Page 32 6: End (P95) Program example 2 writes data to final storage once an hour and transfers data to the SAT HDR GOES once every 4 hours. Example 2 also shows how to use the result codes to ensure P126 executes successfully.
  • Page 33 SAT HDR GOES Transmitter 8: If (X<=>F) (P89) 1: 41 X Loc [ P126_RC ] 2: 4 < 3: 7 4: 30 Then Do ; increment counter to count number of time P126 has been tried again 9: Z=Z+1 (P32)

  • Page 34: Field Installation

    GPS fix has been established. After the first fix, the SAT HDR GOES will acquire a GPS fix about once an hour for the first 24 hours. Over the first 24 hours, The SAT HDR GOES will try to acquire enough GPS information to establish a relationship between crystal oscillator frequency and operating temperature.

  • Page 35: Gps Antenna Location

    24 hours. Until the relationship between crystal oscillator frequency and temperature is established and stored in the SAT HDR GOES memory, a GPS fix will be required before transmission. 6.3.2 GPS Antenna Location The ideal location for the GPS antenna is above everything, with the shortest cable possible.
  • Page 36 SAT HDR GOES Transmitter This is a blank page.

  • Page 37: Eligibility

    Appendix A. Information on Eligibility and Getting Onto the GOES System A.1 Eligibility U.S. federal, state, or local government agencies, or users sponsored by one of those agencies, may use GOES. Potential GOES users must receive formal permission from NESDIS. A.2 Acquiring Permission The user contacts NESDIS at the following address and submits a formal request to transmit data via GOES.
  • Page 38 This is a blank page.

  • Page 39: B. Data Conversion Computer Program

    Appendix B. Data Conversion Computer Program (written in BASIC) REM THIS PROGRAM CONVERTS 3-BYTE ASCII DATA INTO DECIMAL INPUT "RECEIVE FILE?", RF$ OPEN RF$ FOR OUTPUT AS #2 INPUT "NAME OF FILE CONTAINING GOES DATA"; NFL$ DIM DV$(200) WIDTH "LPT1:", 120 OPEN NFL$ FOR INPUT AS #1 WHILE NOT EOF(1) LINE INPUT #1, A$...
  • Page 40 This is a blank page.

  • Page 41: Antenna Orientation Computer Program

    Appendix C. Antenna Orientation Computer Program (written in BASIC) REM THIS PROGRAM CALCULATES THE AZIMUTH AND ELEVATION FOR AN REM ANTENNA USED WITH A DCP FOR GOES SATELLITE COMMUNICATIONS CLS : CLEAR 1000 INPUT "SATELLITE LONGITUDE (DDD.DD)"; SO INPUT "ANTENNA LONGITUDE (DDD.DD)"; SA PRINT "ANTENNA LATITUDE (DDD.DD)--(SOUTH LATITUDE ENTERED"...
  • Page 42 This is a blank page.

  • Page 43: Raws-7 Data Format

    SAT HDR GOES transmitter. Data is written in groups of 7. One group of 7 represents 7 data points, usually for 1 hour of data. All data for the RAWS-7 group must be transferred from the datalogger to the transmitter at the same time.

  • Page 44: Raws-7 Sample Data

    Appendix D. RAWS-7 Data Format D.4 RAWS-7 Sample Data 00.12 00.05 01.09 Rain fall: Hundredths of and inch 109 022 002 Wind Speed: Avg of last 10 minutes 234 123 087 Wind Direction: Avg of last 10 minutes 115 069 -23 Air Temperature: Sample 100 056 012 Relative Humidity: Avg of Last 10 minutes...

  • Page 45: Writing Additional Data Values Beyond The Raws-7

    Appendix D. RAWS-7 Data Format P126 format code 3 ASCII RAWS-7 format, 1, 2 or 3 columns Total Rain xx.xx Avg Wind Speed Avg Wing Direction Sample Air Temp Avg Relative Humidity Sample Fuel Temp Battery Voltage xx.x P126 format code 4 ASCII fixed decimal xxx.x P126 format code 5...
  • Page 46 ; RAWS-7 values are written to final storage at the top of the hour. ; At the top of the 3 hour interval, the RAWS-7 values are copied ; to the SAT HDR GOES transmitter. (P126, Self-timed/insert, format code 3). ; Four additional values are written to final storage and copied to ;...
  • Page 47 Appendix D. RAWS-7 Data Format ; Measure Fuel Moisture ; Wiring: ; Power enable: C8 ; Signal: SE 12 4: Period Average (SE) (P27) 1: 1 Reps 2: 4 200 kHz Max Freq @ 2 V Peak to Peak, Period Output 3: 12 SE Channel 4: 10...
  • Page 48 Appendix D. RAWS-7 Data Format ; Wind Direction (03001-L) 10: Excite-Delay (SE) (P4) 1: 1 Reps 2: 5 2500 mV Slow Range 3: 3 SE Channel 4: 2 Excite all reps w/Exchan 2 5: 2 Delay (units 0.01 sec) 6: 2500 mV Excitation 7: 6 Loc [ Wdir...
  • Page 49 Appendix D. RAWS-7 Data Format ; Correct Fuel Moisture 17: Polynomial (P55) 1: 1 Reps 2: 28 X Loc [ FuelM 3: 28 F(X) Loc [ FuelM 4: -220.14 5: 365.89 6: -114.96 7: 0.0 8: 0.0 9: 0.0 ; Convert Air Temp to degrees F 18: Z=X*F (P37) 1: 3 X Loc [ AirTemp ]...
  • Page 50 Appendix D. RAWS-7 Data Format ; if no fuel temp sensor, ; load 999 for data value 26: If (X<=>F) (P89) 1: 7 X Loc [ FuelT 2: 4 < 3: -35 4: 30 Then Do 27: Z=F (P30) 1: 999 2: 0 Exponent of 10 3: 7...
  • Page 51 Appendix D. RAWS-7 Data Format ; Calculate average wind speed and direction 37: Wind Vector (P69) 1: 1 Reps 2: 0 Samples per Sub-Interval 3: 1 S, é1 Polar 4: 5 Wind Speed/East Loc [ Wspd 5: 6 Wind Direction/North Loc [ Wdir ;...
  • Page 52 3: 1 Loc [ BattVolt ] ; Send the basic RAWS-7 data to the SAT HDR GOES 5 minutes before transmit time. ; FS 1 must contain only the new RAWS-7 data, 3 hours of data. 51: If time is (P92)
  • Page 53 Appendix D. RAWS-7 Data Format ; 3 hours of RAWS-7 data has been written to final storage ; and sent to the transmitter 54: If time is (P92) 1: 120 Minutes (Seconds --) into a ;changed 3/31/0 2: 180 Interval (same units as above) 3: 10 Set Output Flag High (Flag 0) 55: Set Active Storage Area (P80)
  • Page 54 Appendix D. RAWS-7 Data Format 66: Set Active Storage Area (P80) 1: 3 Input Storage Area 2: 17 Loc [ MaxWD_Mid ] 67: Sample (P70) 1: 1 Reps 2: 13 Loc [ WDHrMxWS ] 68: Set Active Storage Area (P80) 1: 3 Input Storage Area 2: 20...
  • Page 55 Appendix D. RAWS-7 Data Format 79: Set Active Storage Area (P80) 1: 3 Input Storage Area 2: 21 Loc [ MaxWS_New ] 80: Sample (P70) 1: 1 Reps 2: 12 Loc [ MaxHrWS ] 81: Set Active Storage Area (P80) 1: 3 Input Storage Area 2: 24...
  • Page 56 Appendix D. RAWS-7 Data Format ; No less than 5 minutes before transmit time, data is ; written to final storage and copied to the transmitter 87: If time is (P92) 1: 65 Minutes (Seconds --) into a 2: 180 Interval (same units as above) 3: 30 Then Do...
  • Page 57 Appendix D. RAWS-7 Data Format ; Copy row 10 to transmitter 99: Data Transfer to HDR GOES (P126) 1: 0 Self-Timed/Append 2: 8 ASCII xxxxx Format 3: 14 Result Code Loc [ P126_RC ] 100: Do (P86) 1: 10 Set Output Flag High (Flag 0) ;...
  • Page 58 Appendix D. RAWS-7 Data Format 8: If (X<=>F) (P89) 1: 44 X Loc [ time_rc ] 2: 4 < 3: 1 4: 30 Then Do 9: If (X<=>F) (P89) 1: 45 X Loc [ GPS_hour ] 2: 3 >= 3: 0 4: 30 Then Do 10: If (X<=>F) (P89)

  • Page 59: Goes Dcs Transmit Frequencies

    Appendix E. GOES DCS Transmit Frequencies 300 & 100 BPS Channels 1200 BPS Channels 300 & 100 BPS Channels 1200 BPS Channels Channel Frequency Channel Frequency Channel Frequency Channel Frequency Number Number+ A Number Number+ A 401.701000 401.701750 401.771500 401.702500 401.773000 401.773750 401.704000...
  • Page 60 Appendix E. GOES DCS Transmit Frequencies 300 & 100 BPS Channels 1200 BPS Channels 1200 BPS Channels 300 & 100 BPS Channels Channel Frequency Channel Frequency Channel Frequency Channel Frequency Number Number+ A Number Number+ A 401.842000 401.842750 401.917000 401.917750 401.843500 401.918500 401.845000...
  • Page 61 Appendix E. GOES DCS Transmit Frequencies 300 & 100 BPS Channels 1200 BPS Channels 300 & 100 BPS Channels 1200 BPS Channels Channel Frequency Channel Frequency Channel Frequency Channel Frequency Number Number+ A Number Number+ A 401.992000 401.992750 402.067000 402.067750 401.993500 402.068500 401.995000...
  • Page 62 Appendix E. GOES DCS Transmit Frequencies This is a blank page.

  • Page 63: High Resolution 18-Bit Binary Format

    Appendix F. High Resolution 18-Bit Binary Format When using the binary 18 bit signed 2’s complement integer format, all data values in the datalogger final storage area must be in high resolution format. In most cases the datalogger program should set the data resolution to high at the beginning of the program.
  • Page 64 Appendix F. High Resolution 18-Bit Binary Format Where 17 represents bit 17 - the most significant bit and is used to determine the sign. Converting the 18 bit data point to an integer can be done manually. Don’t forget the 18 bits are numbered 0 through 17. Bit 17 is the sign bit, when bit 17 is set, the number is negative.

  • Page 65: Goes/Radio Set Certification

    Appendix G. GOES/Radio Set Certification...
  • Page 66 This is a blank page.

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