FT Technologies FT205EV User Manual
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FT Technologies FT205EV User Manual

Digital wind sensor surface and pole mount options digital rs422, rs485hd and uart options
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FT205EV™ – Digital Wind Sensor User Manual
Surface and Pole Mount Options
Digital RS422, RS485HD and UART options
FT TECHNOLOGIES LTD.
TEL: +44 (0)20 8943 0801
SUNBURY HOUSE
FAX: +44 (0)20 8943 3283
BROOKLANDS CLOSE
WEB:
www.fttechnologies.com
SUNBURY-ON-THAMES
E-MAIL: info@fttechnologies.com
MIDDLESEX TW16 7DX
UNITED KINGDOM
A4171-2-EN (March 2020)
Copyright © 2020 FT Technologies Ltd.

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  • Page 1 FT205EV™ – Digital Wind Sensor User Manual Surface and Pole Mount Options Digital RS422, RS485HD and UART options FT TECHNOLOGIES LTD. TEL: +44 (0)20 8943 0801 SUNBURY HOUSE FAX: +44 (0)20 8943 3283 BROOKLANDS CLOSE WEB: www.fttechnologies.com SUNBURY-ON-THAMES E-MAIL: info@fttechnologies.com...

  • Page 2: Table Of Contents

    Acu-Vis 2.0 Software Operation ..................24 4.4.3 Command Line Terminal Programs (Including Tera Term) ..........29 SENSOR COMMUNICATION ................31 Introduction ........................31 RS422 & RS485 Protocol ....................31 UART Protocol ........................34 Configuring the Sensor ..................... 34 FT205EV Wind Sensors – User Manual...
  • Page 3 UC.5: Set & Query User Calibration Table Label ............71 6.4.28 US: Set or Query Saved Parameters ................72 6.4.29 WV Polar: Query the Wind Velocity Reading .............. 74 6.4.30 WV NMEA: Query the Wind Velocity Reading ............76 FT205EV Wind Sensors – User Manual...

  • Page 4: Product Symbols

    Cela doit être fait par le should be done by returning the product to retour du produit à FT Technologies FT Technologies or by using an appropriate ou en utilisant une entreprise waste disposal company. This product d'élimination de déchets. Ce produit should not be disposed of in general waste ne doit pas être éliminé...

  • Page 5: Safety Instructions

    In accordance with any regional electrical codes In accordance with the instructions set out in this manual, observing all information, warnings and instructions In accordance with any other instructions or guidance FT Technologies provide Following applicable regional safety standards •...

  • Page 6: Introduction

    1 INTRODUCTION 1.1 Product Overview The FT205EV is the first in a new generation of lightweight ultrasonic wind sensors. It has a unique combination of low weight (100g) and a wind speed range up to 75m/s. The FT205EV (Evaluation Version) features a graphite and nylon composite body. The light weight of the FT205EV together with the proven FT Acu-Res®...

  • Page 7: Scope Of Use

    The FT205EV lightweight wind sensor comes with a limited 12-month warranty. FT will replace an FT205EV sensor that fails within 12 months of despatch due to a failure of electronic components or poor manufacture. This warranty does not cover failure resulting from mechanical damage or damage from lightning.

  • Page 8: Functional Description

    4. See safety instruction requirements (page 5). A suitable PSU capable of providing up to 0.2A maximum is recommended. RS422 current load is dependent on topology and resistor values, RS422 in ‘always enabled’ mode may draw higher currents. See Section 5.2 for RS422 power requirement details FT205EV Wind Sensors – User Manual...

  • Page 9: Wind Speed Calibration

    The sensor’s compact strong monolithic shape is designed to prevent accidental transducer movement or damage. FT Technologies’ calibration procedure and wind tunnels are designed to give a calibration profile that is within the accuracy limits set in the product technical specification (see Section 2.1).

  • Page 10: Electronically Offsetting The Wind Direction Datum

    Varying fields caused, for example, by ferrous objects passing near the FT205EV (say by a car or truck) or high current electric circuits will not be corrected. Should the magnetic signature of the host system change significantly (because component parts have been added or removed), then a recalibration may be required.

  • Page 11: Error Detection

    (between sensor body and ambient airflow), extreme humidity levels and low wind conditions (below 5m/s) may result in reduced accuracy. Caution: The acoustic temperature feature requires calibration at FT Technologies. If the sensor has had a software upgrade to 7.5 (or above) then the data will be uncalibrated and may not comply with the official specification.

  • Page 12: Mechanical & Electrical Installation

    Section 3 Mechanical & Electrical Installation 3 MECHANICAL & ELECTRICAL INSTALLATION The FT205EV is surface-mounted and optimised for lightweight operation. The sensor uses a Molex Clik-mate PCB connector (part 505405-0860) and is supplied with a 600mm cable (various lengths available from Molex, 600mm cable part 15135-0806).
  • Page 13 Section 3 Mechanical & Electrical Installation Figure 4: FT205EV Sensor – General Sensor Views (units in mm) FT205EV Wind Sensors – User Manual...
  • Page 14 Section 3 Mechanical & Electrical Installation Figure 5: FT205EV Sensor - M3 Thread Details Caution – Excessive length or tightening of the M3 screw may cause damage to the sensor and threads. FT205EV Wind Sensors – User Manual...
  • Page 15 Section 3 Mechanical & Electrical Installation Figure 6: FT205EV – Surface Mount Option Caution – Excessive length or tightening of the M3 screw may cause damage to the sensor and threads. FT205EV Wind Sensors – User Manual...
  • Page 16 Section 3 Mechanical & Electrical Installation Figure 7: FT205EV – Pipe-Mounted Option FT205EV Wind Sensors – User Manual...
  • Page 17 Warning: The user should review all aspects of the pipe material and bonding/adhesive structure to ensure it is compatible with health and safety requirements. Caution – Excessive length or tightening of the M3 screw may cause damage to the sensor and threads. Figure 8: Wind Direction Reference (Compass Disabled) FT205EV Wind Sensors – User Manual...

  • Page 18: Connector Details

    3.1.2 Connector Details The FT205EV sensor uses the Molex CLIK-Mate 8-way single-row connector (Molex part 505405-0860). The sensor is provided with 1x 600mm cable length (50-600mm lengths are available from Molex). The 600mm cable length has the Molex part number 151350806. The cables are fitted with the same connector on both cable ends and corresponding pin numbering.

  • Page 19: Surge & Emi Protection

    The surge suppression devices should conform to an appropriate standard (for example UL 1449 listed). This sensor is designed for lightweight applications and does not have the enhanced surge/lightning protection of advanced industrial sensors within the FT7 range. FT205EV Wind Sensors – User Manual...

  • Page 20: Service, Configuration & Testing

    Do not scrape or scratch the surfaces whilst rinsing. Under no circumstances should objects be inserted inside the measurement cavity, as this can cause irreparable damage. The body of the sensor can be washed if required FT205EV Wind Sensors – User Manual...

  • Page 21: Fault Finding & Troubleshooting

    Please contact FT Technologies for further information and advice if required. 4.3 Returns If a sensor appears to be faulty, compile a detailed fault description for each sensor, then contact FT Technologies to request a Returns Materials Authorisation (RMA) form. Please complete the form and return as instructed.

  • Page 22: Acu-Test Evaluation Kit

    Acu-Vis 2.0 software will work on a PC running Microsoft Windows 7, 8, 8.1 and 10. Note: RS485 half-duplex sensors running in Continuous Update (CU) mode can be difficult to communicate with due to the limitations of half-duplex topology. Contact FT Technologies for assistance or disable CU mode using Acu-Vis 2.0 Caution: Live connection/disconnection of the power and/or sensors during live operation, or miswiring of the power leads could damage the equipment and is not covered by FT’s standard warranty terms...

  • Page 23: Software Installation

    Figure 14: Windows driver installation sequence 6. When the user is ready to operate the sensor - enable the power. When using a benchtop PSU ensure the required voltage is supplied (6-30VDC) and the current output is enabled FT205EV Wind Sensors – User Manual...

  • Page 24: Acu-Vis 2.0 Software Operation

    7. Once the above sequence is complete, wait approximately 5 seconds and then run Acu-Vis 2.0 by selecting the shortcut icon on the desktop or from the start menu in the FT Technologies folder. Figure 15: Acu-Vis Windows Launch Icon 8.
  • Page 25 The temperature gauge on the right-hand side shows the Internal Temperature and the ‘Acoustic Temperature’ ambient air reading. Note: Acoustic Temperature data requires software V7.5+ and an FT temperature calibration Figure 17: Acu-Vis 2.0 Live Display FT205EV Wind Sensors – User Manual...
  • Page 26 This feature will export a file in .fff format that can be forwarded to the FT Technologies support teams • The ‘Unlock Feature’ button is used to unlock advanced features in Acu-Vis 2.0, including the ‘Commands’ and the ‘User Calibration Table’ tabs. Contact FT Technologies for further details FT205EV Wind Sensors – User Manual...
  • Page 27 ID of $// to communicate with all sensor ID numbers (// is a wildcard value) • This window provides a description of the selected software command. Please refer to the user manual software command section for full descriptions FT205EV Wind Sensors – User Manual...
  • Page 28 When the calibration change has been selected press the orange ‘Save UCT to Sensor’ button and ensure the ‘UCT Status’ is set to Enabled. Caution: This feature will change the calibration profile of the sensor and may compromise survey data and/or system performance Figure 20: UCT Modification Window FT205EV Wind Sensors – User Manual...

  • Page 29: Command Line Terminal Programs (Including Tera Term)

    Navigate to the ‘Terminal Setup’ window from the top menu: Setup > Terminal a. Set the ‘New-Line Transmit’ setting to: “CR+LF” b. Enable ‘Local Echo’ by ticking the box (Local Echo makes typed characters visible on the display) FT205EV Wind Sensors – User Manual...
  • Page 30 See Section 5 and 6 for further details regarding command structures and replies. Note: If a sensor is set to an ID setting other than 01, replace $01 with the alternative ID. Starting a command with $// will perform the relevant command on all connected sensors. FT205EV Wind Sensors – User Manual...

  • Page 31: Sensor Communication

    (for example, to enable or disable filtering). Under no circumstances should the ‘//’ characters be used with any QUERY commands since this will cause all sensor units to transmit data resulting in bus contention. FT205EV Wind Sensors – User Manual...
  • Page 32 Termination and bias resistors generally improve data integrity but may not be necessary if short cable lengths (0-2m), low baud rates and when modern ‘fail-safe’ transceivers are used. The FT205EV uses ‘fail-safe’ transceivers. Removing the resistors may result in lower current draw.
  • Page 33 Rbias1 based on equation below. Round the resistor up rather than down when selecting from the E24 range. ���� × 754 ����������1 ( ���� ) = − 754 3.125 Supply voltage Rbias1 (Ω, E24 5%) 2200 5100 6800 FT205EV Wind Sensors – User Manual...

  • Page 34: Uart Protocol

    The sensor can therefore be configured prior to final installation if required. The sensor settings can be returned to the factory values (see Figure 30 for factory default settings) at any time by sending the factory reset command. FT205EV Wind Sensors – User Manual...

  • Page 35: Communication

    Start of message delimiter Checksum field delimiter Field delimiter Dash <cr> Carriage return End of message delimiter Line feed <lf> <name> Placeholder for data Figure 26: Symbols used in this Handbook FT205EV Wind Sensors – User Manual...

  • Page 36: Data Transmission

    See Section 5.5.5 for information on how to compute the checksum and Section 5.5.6 if checksum message validation is not required. All messages are terminated with a carriage return <cr> and line feed <lf>. FT205EV Wind Sensors – User Manual...

  • Page 37: Listener And Talker Identifiers

    ASCII characters ‘//’ in place of the checksum value. Example: Send a message to set the data output format to Polar using the DFP command (the sensor Listener ID in this example is set to 02) FT205EV Wind Sensors – User Manual...
  • Page 38 $02DFP*//<cr><lf> A checksum value is always transmitted by the sensor with every outgoing message. However the checksum field can be ignored by the host computer if checksum validation for received messages is not required. FT205EV Wind Sensors – User Manual...

  • Page 39: Parameter Settings

    6 PARAMETER SETTINGS 6.1 Command Types 6.1.1 Set Commands Figure 30 lists the commands that may be sent to the FT205EV sensor from the host computer that are used to SET configuration options for the wind sensor. Command Mnemonic Configuration Options...

  • Page 40: Query Commands

    Wind speed table record 6.4.25 Table label 6.4.26 6.4.27 Saved User Parameters Matches Saved to Current User Parameters 6.4.28 Wind Speed, Direction and Sensor Status 6.4.29 Wind velocity reading (temperature optional) 6.4.30 Figure 31: Query Commands FT205EV Wind Sensors – User Manual...

  • Page 41: User Calibration Table

    Read the number of table entries and the table checksum; • Read out a selected row of table data, • Read out the User Calibration Table label. See Sections 6.4.23 - 6.4.27 for further details. FT205EV Wind Sensors – User Manual...

  • Page 42: Timing Constraints

    A QUERY can then be sent to confirm command has been carried out: $//DF?*//<cr><lf> Then wait 50-100ms for the sensor to send a response: $WI,DF=P*5D<cr><lf> Please note the above example assumes the sensor has a factory default time delay of 50-100ms (DL01). FT205EV Wind Sensors – User Manual...

  • Page 43: Command Parameters

    Use the AM command if changing the mounting of the anemometer between right way up and upside down. In inverted orientation the sensor’s compass and wind direction readings will be reversed to provide correct direction and heading output. FT205EV Wind Sensors – User Manual...

  • Page 44: At.1: Query The Acoustic Temperature

    CU & WV output data. A new DF command option (see Section 6.4.9) controls this mode. Caution: The acoustic temperature feature requires calibration at FT Technologies. If the sensor has had a software upgrade to 7.5 (or above) then the data will be uncalibrated and may not comply with the official specification.

  • Page 45: At.2: Set Or Query The Acoustic Temperature Units

    Set units to Fahrenheit $01,AT?U*//<cr><lf> Query temperature units $WI,AT=F*5C<cr><lf> Sensor response Description Use this command to change the measurement units of the acoustic temperature output readings. The available measurement units are degrees Celsius, Fahrenheit and Kelvin. FT205EV Wind Sensors – User Manual...

  • Page 46: At.3 Set Or Query The Acoustic Temperature Filter Length

    Use this command to alter the time constant of the acoustic temperature filter. The filter can be disabled by setting the time constant to zero (00S). Valid time constants are ten second steps from 10S to 50S and then one minute steps from 01M to 10M. FT205EV Wind Sensors – User Manual...

  • Page 47: Br: Set Or Query The Serial Interface Baud Rate

    If you do not know what the current setting of the sensor baud rate is you will need to try each baud rate in turn until you establish communication. FT205EV Wind Sensors – User Manual...

  • Page 48: Cf: Set Or Query The Wind Compass Settings

    Query compass parameters $WI,CF=D,D,005.0,005.0*26<cr><lf> FT205EV output Example 2 The datum direction of the FT205EV is pointing 40° to the East – set the declination angle a further 5° East and read the compass heading and declination parameters: Message Comment $01,CF005.0*//<cr><lf>...
  • Page 49 $01,CFMS*//<cr><lf> Save the compass calibration Description Use the CF command to access the compass related features of the FT205EV. See Sections 2.4 & 2.5 for further details about the compass, declination angle and the calibration procedure. FT205EV Wind Sensors – User Manual...

  • Page 50: Ci: Set Or Query The Communication Interface (Rs485, Rs422, Uart)

    When selecting the RS422 interface, the sensor’s RS422 transmitter may be set to remain permanently enabled (or only enabled during message transmission). FT205EV Wind Sensors – User Manual...

  • Page 51: Cu: Set Or Query The Continuous Update Setting

    To achieve this, the CUD (disable continuous update mode) command must be sent within the first four seconds of the power being applied to the sensor. It is possible to modify the four second delay period on the FT205EV sensor, contact FT Technologies for further information.

  • Page 52: Df: Set Or Query The Wind Velocity Data Format

    Example 4 Comment WV? Command with DFC enabled $01,WV?*// Query WV wind data $WI,WVC=000.0,323,0,+026.3,C,A*4D Sensor Response Example 5 Comment CU Mode example with DFC enabled $01,CUE00010*// Enable CU mode (1Hz) $WI,WVC=000.0,333,0,+026.4,C,A*4B CU DFC Response (1Hz) FT205EV Wind Sensors – User Manual...
  • Page 53 NMEA 0183 Format: The sensor returns the wind angle (0-359 degrees, Relative) and wind speed (m/s, knots or km/h). The sensor TalkerID is always set to WI when NMEA format is selected irrespective of any value that may have been set with the ID command. FT205EV Wind Sensors – User Manual...

  • Page 54: Dg: Query The Run-Time Counter

    Use the DG command to query the number of operational hours that the anemometer has been in use. The Run-Time Counter is incremented on completion of each full hour that the anemometer has been in use. FT205EV Wind Sensors – User Manual...

  • Page 55: Dl: Set Or Query The Command Delay Interval

    For example, if the delay interval is set to 250ms then the sensor will commence outputting the wind velocity data between 250-300ms after receiving a WV query command. If any further commands are sent to the sensor before the delay interval has elapsed they will be discarded. FT205EV Wind Sensors – User Manual...

  • Page 56: Er: Query Or Reset The Error Report

    This report can be sent back to the FT factory for analysis if there are problems with the sensor. Currently the historical error log is only used for factory diagnostic purposes. FT205EV Wind Sensors – User Manual...

  • Page 57: Fl.1: Set Or Query General Filter Settings

    Comment $01,FLD*//<cr><lf> Disable filtering $01,FL?*//<cr><lf> Query filter setting $WI,FL=D*41<cr><lf> Sensor response Description Use the FL command to enable or disable moving average filtering of the wind speed and wind direction readings (see Section 2.3). FT205EV Wind Sensors – User Manual...

  • Page 58: Fl.2: Set Or Query Filter Lengths

    1. So setting a filter to a length of 0001 gives just the current reading (see Section 2.3). The sensor’s internal memory is large enough to retain 64 previous speed and direction readings, allowing for maximum filter length of 6.4 seconds. FT205EV Wind Sensors – User Manual...

  • Page 59: Fl.3: Set Or Query The Selective Filter

    This scheme can be enabled by factory configuration. The filter is turned off by default to match legacy behaviour. Depending on the control system used, this may improve data quality. FT205EV Wind Sensors – User Manual...

  • Page 60: Ht.1: Query Heater Settings

    Description The HT query command requests the status of the internal heater circuit. Since no heater functionality is included in the FT205EV product, it can only provide details of the internal temperature. In comparison to other sensors in the FT product range, users should be aware the SET heater command is disabled on the FT205EV product.

  • Page 61: Id: Set Or Query The Listener & Talker Identifiers

    Note: the ID? command must use the new listener ID otherwise the command will not be recognised. Description Use the ID command to set the listener and talker address identifiers. See Section 5.5.4 for information on listener and talker address identifiers. FT205EV Wind Sensors – User Manual...

  • Page 62: Mm: Reset Or Query The Min/Max Recorded Wind Speed

    Use the MM command to query the minimum and maximum wind speed readings that the sensor has recorded since it was last switched on. The minimum and maximum readings are set to their default values when an MMR, an RS or a DF set command is executed. FT205EV Wind Sensors – User Manual...

  • Page 63: Os: Set Or Query Overspeed Warning Scheme

    Disable the Overspeed Warning scheme. Verify that the command has been accepted. Message Comment $01,OSD*//<cr><lf> Disable the scheme $01,OS?*//<cr><lf> Query Overspeed Warning scheme $WI,OS=D*57<cr><lf> Sensor response Description Use this command to query, enable or disable the Overspeed Warning Scheme (See Section 2.8). FT205EV Wind Sensors – User Manual...

  • Page 64: Rs: Reset The Sensor

    To restart the software, but continue to use the previous user parameter settings use the RSU command To restart the software, but load the saved parameter settings use the RSS command. See command US (Section 6.4.28) for a description for setting or querying these Saved Parameters. FT205EV Wind Sensors – User Manual...

  • Page 65: Sn: Query The Serial Number And Platform Version

    The serial number format starts with a 5 digit batch code, followed by a 3 digit number which identifies a sensor within a particular batch. The overall number is the unique serial number identifier for the sensor. FT205EV Wind Sensors – User Manual...

  • Page 66: Query The Software Version

    For software versions using the format 7.5 two blank spaces will follow. FT may release incremental software versions with the numbering format 7.5.1, in this case there will be no blank spaces following the software version. FT205EV Wind Sensors – User Manual...

  • Page 67: Uc.1: Set Or Query The General User Calibration Settings

    (nn) will be 00 and the saved user calibration table Flash copy checksum (zzzz) will be 5535. When the User Calibration facility is enabled, the uncorrected wind speed indication of the sensor is calibrated according to the stored calibration records, using linear interpolation. FT205EV Wind Sensors – User Manual...

  • Page 68: Uc.2: Clear User Calibration Table Record

    A UCCLEAR is performed before a new user calibration table is loaded (see Section 6.4.25). The user calibration table label is also cleared to 32 ASCII spaces when the UCCLEAR command is sent (see Section 6.4.27). FT205EV Wind Sensors – User Manual...

  • Page 69: Uc.3: Set User Calibration Table Record

    Up to 64 records can be entered sequentially into the sensor’s RAM and verified. Once sufficient records have been loaded, these can be saved to the Flash using the user calibration save command (see Section 6.4.26). FT205EV Wind Sensors – User Manual...

  • Page 70: Uc.4: Save And Read User Calibration Table

    Use the UC?R command to verify the data stored in an individual Flash calibration record. Once the table has been saved into Flash memory, new data and the text string can only be written to it by first clearing the table. FT205EV Wind Sensors – User Manual...

  • Page 71: Uc.5: Set & Query User Calibration Table Label

    The user calibration table label can be cleared by using the UCCLEAR command. (see Section 6.4.24) This resets the label to 32 ASCII spaces. UC?T query command will only return a response after the user calibration table has been initialised. FT205EV Wind Sensors – User Manual...

  • Page 72: Set Or Query Saved Parameters

    User Parameter copy which is updated. The user parameters copy is non volatile so the sensor will keep the last settings when it is powered up again. Continued over the page… FT205EV Wind Sensors – User Manual...
  • Page 73 User version becomes corrupt there is always a ‘clean’ back up Saved copy of the parameters that can be used to recover the sensor. FT205EV Wind Sensors – User Manual...

  • Page 74: Wv Polar: Query The Wind Velocity Reading

    The following examples illustrates the DFC (Combined) wind velocity data format. The example shows the sensor output with a wind speed of 0m/s, a wind angle of 323° and acoustic temperature of +26.3°C. Comment Message Query the wind velocity $01,WV?*13<cr><lf> Sensor Response (DFC) $WI,WVC=000.0,323,0,+026.3,C,A*4D FT205EV Wind Sensors – User Manual...
  • Page 75 It is important that the host computer is able to cope with occasional periods when valid data may be temporarily unavailable. The status is cleared once the WV command is executed, provided that the error condition does not persist. FT205EV Wind Sensors – User Manual...

  • Page 76: Wv Nmea: Query The Wind Velocity Reading

    MWV Wind Speed and Angle sentence. The sensor Talker ID is always set to WI when NMEA format is selected, irrespective of any setting that may have been set with the ID command. End of Manual – Back to Contents FT205EV Wind Sensors – User Manual...

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