Weather transmitter, single device that measures wind speed & direction, precipitation, barometric pressure, temperature and relative humidity (2 pages)
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Quotations for repairs can be given on request. It is the policy of Campbell Scientific to protect the health of its employees and provide a safe working environment, in support of this policy a “Declaration of Hazardous Material and Decontamination”...
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PLEASE READ FIRST About this manual Please note that this manual was originally produced by Campbell Scientific Inc. primarily for the North American market. Some spellings, weights and measures may reflect this origin. Some useful conversion factors: Area: 1 in...
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• Periodically (at least yearly) check electrical ground connections. WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS...
PDF reader bookmarks tab for links to specific sections. 1. Introduction..............1 2. Precautions ..............1 3. Initial Inspection ............1 Ships With List ..................1 4. QuickStart ..............1 Step 1 – Configure the TX321 .............1 4.1.1 Accessing DevConfig ..............2 4.1.2 Settings Editor | Configuration ............2 4.1.3 Settings Editor | GPS ..............5...
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Table of Contents 7.5.1.4 Buffer Control ..............21 7.5.1.5 Data Format ..............22 7.5.1.6 GOESData() CR1000X Example ........23 7.5.2 GOESStatus() ................24 7.5.2.1 GOESStatus Read Time ........... 24 7.5.2.2 GOESStatus Read Status ..........24 7.5.2.3 GOESStatus Read Last Message Status ......25 7.5.3 GOESGPS ...................
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Table of Contents D.1 Command Interface ................D-1 D.1.1 Port Interfaces ................D-1 D.1.1.1 RS-232 Details ..............D-1 D.1.1.2 Command Protocol ............D-1 D.1.1.3 Command Access Level ..........D-2 D.2 General Configuration Commands............D-2 D.2.1 Clock Read/Set ................D-2 D.2.2 Replacement Character Read/Set ..........D-3 D.2.3 Save Configuration ..............
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Settings Editor | GPS in DevConfig ........... 31 8-3. Settings Editor | Status in DevConfig ..........32 8-4. Terminal Tab in DevConfig ............... 33 F-1. TX321 FCC Supplier Declaration of Conformity and FCC Statement ..................F-1 F-2. DCPRS and CGMS certificate ............F-2 F-3. EUMETSAT certificate..............F-3 Tables 7-1.
Use our Device Configuration Utility (DevConfig) to enter the required National Environmental Satellite Data and Information Service (NESDIS) information that is unique to each data collection platform (DCP). DevConfig must be version 2.11 or newer. The TX321 has non-volatile memory to store the setup information.
TX321 Transmitter 4.1.1 Accessing DevConfig The following steps are required for accessing DevConfig: Connect the TX321 to the computer. A standard 9-pin serial cable or SC12 • can be used to connect the TX321 RS-232 port to the computer RS-232 port.
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TX321 Transmitter CS2 Self Timed Transmission Channel: Select the NESDIS-assigned self- timed transmission channel. For 1200-baud channels, the formal channel designation is the channel number followed by the letter A, for example: 99A. Setting the channel number to a value of zero disables timed transmissions.
TX321 Transmitter FIGURE 4-2. Settings Editor Configuration in DevConfig NOTE If NESDIS has not assigned a Random Channel, the following parameters do not apply. CS2 Random Transmission Channel: Select the NESDIS-assigned random transmission channel. Setting the channel number to a value of zero disables random transmissions.
Random Transmission Repeat Count: Specify the number of times that a random transmission is repeated. A value greater than zero specifies the number of times the TX321 transmits random buffer data before the random buffer is automatically cleared. A value of zero specifies that random transmissions occur on the interval until the random buffer is cleared by the host.
TX321 Transmitter Install elements to boom. NOTE When attaching elements to the boom, make sure to place them such that the number of grooves on the element equals the number of dimples on the boom. For example, place the element with four grooves at the spot on the boom with four dimples, and so forth.
TX321 Transmitter NOTE Additional information about the Yagi antenna is provided in Section 7.3, Transmission Antenna (p. 20) FIGURE 4-4. Alignment Tab in DevConfig Connect the cable first. Be careful not to twist the cable when inserting the 3/4 IPS aluminium pipe into the GPS antenna (see FIGURE 4-5).
TX321 Transmitter FIGURE 4-5. Exploded view of the GPS antenna mounted to a crossarm via the CM220 FIGURE 4-6. GPS antenna mounted to a crossarm via the CM220...
Route the GPS antenna cable through the enclosure conduit and connect it to the TX321 connector labelled GPS (see FIGURE and FIGURE 4-8). 10. Wire the TX321, the CH150 or CH200 regulator, the BP12 or BP24 battery, and the data logger according to FIGURE and FIGURE 4-9.
Used to connect to the CR1000X, CR1000, CR800 series, CR3000, RF Out CR6 series, or CR5000 Connector CS I/O port via the Connector SC12 cable Power Port RS-232: Used to connect to the CR300 series or CR295(X) FIGURE 4-8. TX321 connectors...
The TX321 uses non-volatile memory to store configuration information, such as platform ID, transmission baud rate, channel number, scheduled transmission time, offset time, and message window length. The TX321 also has a 15.7 kB RAM buffer for scheduled transmissions and a buffer for random transmissions.
The CS I/O port is a Campbell Scientific synchronous device for communication (SDC) port, address 4. NOTE The 21X and CR7 data loggers do not support SDC or the TX321. GOES System Appendix A, Information on Eligibility and Getting Onto the GOES System , provides information about getting onto the GOES system and (p.
TX321 Transmitter only practical for organizations with many GOES users. Contact NESDIS for more information (www.noaasis.noaa.gov/DCS). GOES Satellite Satellite Antenna GOES transmitter, data logger, and power supply, also known as a DCP Ground Receiving Station Data Collection Platform (DCP) FIGURE 5-1. Major components of the GOES/DCP system (GPS...
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Typically ±5.4 V CS I/O Port Signal Levels: Command Protocol: Campbell Scientific Synchronous Device Communication, Address 4 When transmitting to GOES-13 or later, transmit EIRP is 37 to 41 dBm for 300 bps and 43 to 47 dBm for 1200 bps.
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TX321 Transmitter Timekeeping Initial Accuracy: ±100 µs synchronized to GPS Drift: ±10 ms/day without GPS (over operating temperature range) GPS Schedule: 1 fix at power up, 1 fix per day afterwards Transmission Continuation without GPS Fix: 28 days Interface Connectors...
The transmission antenna must have a clear view of the spacecraft. The following are general siting requirements, not specific to the TX321. The TX321 must be mounted in an enclosure to protect it from the environment, including condensation. Most GOES systems are powered by a battery that is charged by a solar panel.
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To clear the fail-safe, press and hold the Fault button for about 10 seconds Holding the Status button for 1 second before releasing causes the TX321 to run a diagnostics routine. The results of the diagnostics routine are indicated by...
TX321 will only perform the forced test transmission, if the random transmit channel has been configured. If GPS is active or the RTC is invalid, the TX321 will flash all LEDs red. If the GPS is not active and the RTC is valid, the TX321 will flash all LEDs green.
The TX321 power connector has two pins: ground and 12 V. The input power requirement is 10.8 to 16 VDC at 3 A. Because the TX321 can use up to 3 A, the power should be connected directly to the battery.
GPS fix is established or the internal clock has been manually set. After the first fix, the TX321 will acquire a GPS fix once a day. Each time the GPS system acquires a fix, the entire GPS almanac is downloaded, which requires about 15 minutes.
7.5.1 GOESData() The GOESData() instruction is used to send data from the data logger to the TX321 transmitter. Each time GOESData() is executed, data is ordered with the newest data to be transmitted first. There are five parameters to the GOESData() instruction: Result Code, Data Table, Table Option, Buffer Control, and Data Format.
Data Format is used to determine what format the data is transmitted in. This is the format of the data sent over the satellite. The TX321 does not determine the actual data format used, but can be set to match the data format selected with this instruction.
TX321 Transmitter 7.5.1.6 GOESData() CR1000X Example CRBasic Example 7-1. GOESData() Instruction ' GOESData() Example ' Sample program makes a few simple measurements and ' stores the result in the table named Tempdata. ' All new data from TempData is copied to the ' transmitter hourly.
Command 0 (Read Time) will read the TX321 clock. Under normal operating conditions, the time is GMT. There are delays in reading the time from the TX321. The array needs to be four elements or more. As shown in TABLE 7-1, data is returned as: result code, hour, minute, second.
TX321 Transmitter Command 1 (Read Status) is used to read information regarding the current status of the transmitter. As shown in TABLE 7-2, information returned includes the number of bytes in each data buffer, the time until transmission, and a loaded battery voltage.
GOES configuration parameters to be stored in the data logger, and executed when needed. After GOESSetup() executes, several TX321 settings are set to default values. Messages are not centred in the transmission window. Self-timed message format is set to ASCII, which ONLY changes the flag word.
Window is the message window length in seconds. Valid range is 5 to 120. 7.5.4.4 Timed Channel Timed Channel is the assigned self-timed transmission channel. For Campbell Scientific, valid range is 0 to 266 for 300 bps, and 0 to 133 for 1200 bps. Often, 1200 bps channels are referred to using the 300 channel number scheme.
TX321 Transmitter 7.5.4.9 Timed Offset Timed Offset is assigned by NESDIS and is a string variable in the format of “hh_mm_ss”, where hh is hours and usually 00, mm is minutes, and ss is seconds. 7.5.4.10 Random Interval Random Interval is a string variable in the format of “hh_mm_ss” where hh and ss are usually zero and mm is 30 or 45.
TX321 Transmitter Fault Button Fault Button FIGURE 8-1. TX321 Fault Button The Fault button indicates whether or not the fail-safe has been tripped. Press and hold the Fault button for about 2 seconds. The Status LED flashes once to indicate the fail-safe has not been tripped, and flashes twice to indicate the fail- safe has been tripped.
TX321 Transmitter The GOESData() and GOESSetup() instructions may also have a negative result code (see TABLE 8-2). A negative result code is a run-time error and indicates that there is an illegal value in one of the parameters. TABLE 8-1. Result Codes Indicating Communication Problems...
TX321 Transmitter Also check the GPS antenna placement. Poor GPS antenna placement will increase the number of missed transmissions, or possibly stop all transmission (see Section 7.4, GPS Antenna , for more information). (p. 20) FIGURE 8-2. Settings Editor | GPS in DevConfig...
TX321 Transmitter 8.4.2 Settings Editor | Status The Status tab provides a lot of useful information about the transmitter that can help in troubleshooting (see FIGURE 8-3). Specifically, ensure that the Fail Safe Status is OK. Also the supply voltage amount needs to be greater than 10.8 V.
TX321 Transmitter 8.4.3 Terminal The Terminal tab (see FIGURE 8-4) supports manually-entered commands (see Appendix D, Extended ASCII Command Set , for individual (p. D-1) commands). It also includes buttons on the right side of the screen that provide the following functions.
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 and submits a formal request to transmit data via GOES.
Appendix B. GOES DCS Transmit Frequencies GOES DCPRS Transmit Frequencies Certification Standard 1.0 (continued) TABLE B-1. 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...
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Appendix B. GOES DCS Transmit Frequencies GOES DCPRS Transmit Frequencies Certification Standard 1.0 (continued) TABLE B-1. 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...
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Appendix B. GOES DCS Transmit Frequencies TABLE B-2. GOES DCPRS Transmit Frequencies Certification Standard 2.0 Channel Channel Centre Channel Centre Centre Number Frequency Number Frequency Number Frequency 401.701000 401.734750 401.768500 401.701750 401.735500 401.769250 401.702500 401.736250 401.770000 401.703250 401.737000 401.770750 401.704000 401.737750 401.771500 401.704750...
Appendix B. GOES DCS Transmit Frequencies TABLE B-2. GOES DCPRS Transmit Frequencies Certification Standard 2.0 (continued) Channel Centre Channel Centre Channel Centre Number Frequency Number Frequency Number Frequency 401.802250 401.836000 401.869750 401.803000 401.836750 401.870500 401.803750 401.837500 401.871250 401.804500 401.838250 401.872000 401.805250 401.839000 401.872750...
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Appendix B. GOES DCS Transmit Frequencies TABLE B-2. GOES DCPRS Transmit Frequencies Certification Standard 2.0 (continued) Channel Centre Channel Centre Channel Centre Number Frequency Number Frequency Number Frequency 401.903500 401.937250 401.971000 401.904250 401.938000 401.971750 401.905000 401.938750 401.972500 401.905750 401.939500 401.973250 401.906500 401.940250 401.974000...
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Appendix B. GOES DCS Transmit Frequencies TABLE B-2. GOES DCPRS Transmit Frequencies Certification Standard 2.0 (continued) Channel Centre Channel Centre Channel Centre Number Frequency Number Frequency Number Frequency 402.004750 402.038500 402.072250 402.005500 402.039250 402.073000 402.006250 402.040000 402.073750 402.007000 402.040750 402.074500 402.007750 402.041500 402.075250...
Appendix C. GOES Data Formats C.1 Data Formats Data transmissions are generally described as having an ASCII or Pseudo Binary format. The particular nature of how the data is formatted and ordered is determined by the content and organization of the data tables and execution of the GOESData() instruction.
Appendix C. GOES Data Formats C.2.2 Fixed Decimal ASCII There are several fixed decimal ASCII formats to choose from in CRBasic that will create fixed-width, space-delimited output. • Value has a fixed width, see the following table. Value will be padded with leading zeros if needed to meet fixed-width •...
Appendix C. GOES Data Formats bit and is set if necessary by the transmitter. Binary numbers are transmitted MSB (most significant bit) first. Because only 6 bits are used in each byte, the range that a byte or series of bytes can represent is diminished.
Appendix C. GOES Data Formats When transmitted in a Pseudo Binary format, the 16 bits are encoded within 3 bytes. They are spread across the lower 6 bits of each character as shown in the following table. For example, the value of 12.34 would be encoded as follows. Char1 = D Char2 = S Char3 = R...
Appendix D. Extended ASCII Command Appendix D describes the ASCII command interface for the TX321 transmitter. These commands can be entered using the terminal window of DevConfig, or suitable terminal emulation software. D.1 Command Interface D.1.1 Port Interfaces All data entry and diagnostic functions are accessed using either the RS-232 or USB interface.
Syntax: TIME=yyyy/mm/dd hh:mm:ss Access level: USER TX321 state: Enabled/Disabled This command sets the date and time in the transmitter. The date and time will be overwritten when a GPS time synchronization occurs. Self-timed transmissions will not occur until the time has been set either using this command or from the GPS.
Syntax: IRC=c Access level: USER TX321 state: Enabled/Disabled This command defines the ASCII character that will be substituted for any prohibited ASCII character detected in the transmission data when operating in ASCII or Pseudo Binary mode. The default character is ‘*’. Only printable ASCII characters, excluding space, are permitted.
D.2.6 Enable Transmissions Syntax: Access level: USER TX321 state: Disabled This command enables transmissions. The configuration parameters will be checked for validity. If valid, they are saved to non-volatile memory and the transmitter is enabled. The enabled/disabled state of the transmitter is also stored in non-volatile memory so that it will resume operation after a power cycle if it was previously enabled.
D.2.9 Enable Technician Command Mode Syntax: TECHMODE password Access level: USER TX321 state: Enabled/Disabled This command changes the command access level to TECHNICIAN. The access level will not change unless the password is correct. D.2.10 Enable User Command Mode Syntax:...
D.3.1 Set GOES DCP Platform ID Syntax: NESID=xxxxxxxx Access level: USER TX321 state: Disabled Sets the transmitter GOES DCP Platform ID to the hex value xxxxxxxx. Valid range is even hex numbers from 2 to 0xfffffffe. D.3.2 Set Self-Timed Transmission Channel Number...
Syntax: FTT=hh:mm:ss Access level: USER TX321 state: Disabled Set the time for the first timed transmission of the day. Valid range is 00:00:00 to 23:59:59. The First Transmission Time is also referred to as the Offset, and is between 00:00:00 and the Self-Timed Transmission Interval.
Syntax: TPR=S/L Access level: USER TX321 state: Disabled Set the preamble type for timed transmissions. Valid values are S or L (Short or Long). This setting only applies for 100 bps timed transmissions on channels 1 – 200. All 300 and 1200 bps transmissions us short preamble. All 100 bps transmissions on channels above 200 use long preamble.
D.3.13 Set Random Transmission Bit Rate Syntax: RBR=bbbb Access level: USER TX321 state: Disabled This command sets the random transmission bit rate, where bbbb is the bit rate parameter and has valid values of 100, 300 and 1200. D.3.14 Set Random Transmission Interval...
TX321 state: Enabled This command overwrites the GOES timed buffer with the data provided. The TX321 transmitter will insert the 31 bit GOES ID, any header information (for example, HDR Flag byte), and append the EOT so these should not be included in the TDT data.
D.4.2 Read Number of Bytes in the Self-Timed Transmission Buffer Syntax: Access level: USER TX321 state: Enabled/Disabled Returns the number of bytes stored in the timed transmission buffer. D.4.3 Read the Maximum Self-Timed Message Length Syntax: MTML...
D.4.6 Read Length of the Message in the Random Transmission Buffer Syntax: Access level: USER TX321 state: Enabled/Disabled Returns the number of bytes stored in the random transmission buffer. D.4.7 Read the Maximum Random Message Length Syntax: MRML...
Appendix D. Extended ASCII Command Set D.5.1 Read Version Information Syntax: Access level: USER TX321 state: Enabled/Disabled This command returns the transmitter serial number, hardware version number, operating system version, and GPS module version numbers. D.5.2 Read Transmission Status Syntax:...
No Tx Has Occurred D.5.4 Read GPS Status Syntax: Access level: USER TX321 state: Enabled/Disabled This command returns the current GPS status including satellite numbers and signal strengths in the following format if the GPS is on: Fix Status: Full Accuracy...
Appendix D. Extended ASCII Command Set D.5.5 Read GPS Position Syntax: Access level: USER TX321 state: Enabled/Disabled This command returns position obtained during the last GPS fix in the following format: Time of fix: dd/mm/yyyy hh:mm:ss[CR][LF] Lat: sxx.xxxxx[CR][LF] Long: sxxx.xxxxx[CR][LF] Alt: xxxxx[CR][LF]>...
D.5.8 Read Reflected Power Syntax: RRFL Access level: USER TX321 state: Enabled/Disabled Returns the reflected power in dBm. This value is updated at the bit rate when transmitting and every 30 seconds when not transmitting. D.5.9 Read Power Supply Syntax:...
Appendix E. Meteosat Appendix E provides general information about the Meteosat capabilities of the TX321. E.1 General Specifications The TX321 family is capable of using Meteosat data collection which uses Standard Rate DCP Platforms (SRDCP) to transmit. It transmits at 100 baud and can transmit 649 bytes of platform data in 1 minute.
Conformity and FCC Statement (FIGURE F-1), the DCPRS and CGMS certificate (FIGURE F-2), and the EUMETSAT certificate (FIGURE F-3). The TX321-M EU Declaration of Conformity and TX321-G Brazilian Certificate of Approval are available at: www.campbellsci.eu/tx321. FIGURE F-1. TX321 FCC Supplier Declaration of Conformity and FCC Statement...
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AppendixE. Meteosat FIGURE F-2. DCPRS and CGMS certificate...
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