Seatex Seapath Manual

 

For hydro acoustic positioning and seabed mapping There are two product ranges in the Seapath family, each tailored to meet different market needs, while delivering the same outstanding results. Seapath 300 Precision, reliability and performance are precursors for success when undertaking complex operations, in demanding environments.

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The market proven Seapath 300 series of Heading, Attitude and Positioning sensors pinpoint and utilise the optimal combination of GNSS (GPS/GLONASS/Galileo/Beidou) signals and inertial measurements to provide high quality results for applications including hydrographic surveying, dredging, oceanographic research, seismic work and offshore construction. With state-of-the-art software and processing algorithms, the Seapath 300 family provides users with the capacity to map the seafloor, and unlock opportunity, like never before. Seapath 130 The Seapath 130 series offers a fast track solution that delivers the accuracy of the Seapath 300 family in a package that is flexible, convenient and simple to install. Utilising the same innovative technology as its sister range, Seapath 130 blends precision with portability, making it an ideal companion for a broad range of applications and surveying vessels where fast deployment and quality results are key criteria for success.

. ™ Seatex Seapath Installation Manual Issued: 2008-06-09. Blank page. However, should any errors be detected, Kongsberg Seatex AS would greatly appreciate being informed of them. The above notwithstanding, Kongsberg Seatex AS can assume no responsibility for any errors in this manual or their consequences.

Copyright © 2008 by Kongsberg Seatex AS. All rights reserved.

Blank page. Corsa comfort 2018 manual. Revision log Document ID Rev. Date Reason for revision Approved (sign) 38120-GM-002 1997-10-31 First version 1998-05-04 Added to description of installing coax connector on superflex cable, new output data formats and some corrections.

1998-12-14 Upgraded with new MRU mounting bracket and to correspond with Seapath version 1.02.03 and MRU version 2.53. Blank page. Table of contents 1.

1 About this manual.1 References.2 Definitions, abbreviations and acronyms.2 1.3.1 Definitions.2 1.3.2 Abbreviations and acronyms.3 2. SPECIFICATIONS.5 Physical dimensions.

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6 Environmental specification. INSTALLATION DRAWINGS.37 5. APPENDIX A - INSTALLATION WORKSHEET.45 6. APPENDIX B - OUTPUT PROTOCOLS FROM SEAPATH.51 NMEA format.51 Binary format 3.53 Binary format, Simrad EM1000/950 compatible.54 Binary format, Simrad EM3000, EM300 and HiPap compatible.55 Calibration format. 8.4.1.2 Vessel description.82 8.4.2 GPS sensor settings.83 8.4.2.1 GPS geometry.

83 8.4.2.2 GPS processing.83 8.4.2.3 GPS reference stations.85 8.4.2.4 SBAS common settings.85 8.4.2.5 GPS antenna configuration. 86 8.4.2.6 GPS attitude processing.91 8.4.3 MRU sensor settings. Blank page. List of illustrations Figure 1 Dimensional drawing for the antenna holder.14 Figure 2 Top view of the Antenna Bracket.14 Figure 3 The different components for mounting of the Antenna Bracket.15 Figure 4 Side view of the GPS antenna installation.

15 Figure 5 Recommended orientation of the MRU mounting bracket. Figure 42 Page 3 of GPS Antenna Configuration.89 Figure 43 Edit Calibration Data.

90 Figure 44 Page 4 of GPS Antenna Configuration.91 Figure 45 GPS Attitude Processing.91 Figure 46 MRU Geometry. 92 Figure 47 Step 1 of MRU Axis Orientation. List of drawings Drawing no. Title Revision No.

Of sheets 31438-ma-010 HW platform, Enclosure dimensions 38120-md-007 Seapath 200, Antenna Holder hs-003-a MRU housing, External dimension hs-016-b MRU-M-MB3 bracket, Hydrographic version hs-014-a MRU junction box MRU-E-JB1, Layout and ext. Dimensions M410-32 Processing Unit Connection Box M320-42 Cable, Processing Unit Aux-Serial, Analog Output XIII. Blank page. Seatex Seapath 200 Installation Manual, rev. 13 Introduction INTRODUCTION About this manual This manual contains the information necessary to install the Seapath 200 on a ship. For all other product information, please consult the User's Manual, reference 3. The Seapath 200 is a precise heading, attitude and position sensor based on a sophisticated combination of DGPS carrier phase measurements and inertial sensor technology.

Seatex Seapath 200 Installation Manual, rev. 13 Introduction References NMEA 0183 Standard for interfacing marine electronic devices, Version 2.3 RTCM recommended standards for differential Navstar GPS service, Version 2.2 38120-GM-001, User's Manual, Seapath 200, rev.

14 Definitions, abbreviations and acronyms 1.3.1. Seatex Seapath 200 Installation Manual, rev. 13 Introduction 1.3.2 Abbreviations and acronyms Body frame. An orthogonal frame fixed to the MRU housing or to the b-frame vehicle where the MRU is fixed. Circular Error Probability.

Centre of gravity. The mass centre of a vessel. This is normally the location with least linear acceleration, and hence the best location for measurements of roll and pitch.

Seatex Seapath 200 Installation Manual, rev. 13 Introduction Blank page. Seatex Seapath 200 Installation Manual, rev. 13 Specifications SPECIFICATIONS Physical dimensions Processing Unit Width. 482 mm (19-inch rack) Height.132 mm (3 U) Depth.430 mm Weight.12 kg Colour.Front anodised black Connection Box, M410-32 Length. Seatex Seapath 200 Installation Manual, rev. 13 Specifications Antenna Bracket Length.2560 mm Height.40 mm Width.75 mm Weight for the 2.5-metre aluminium version.6.6 kg Colour.

Grey RAL 7035 Power Processing Unit Voltage.85 to 135 and 180 to 265V AC Power consumption. Seatex Seapath 200 Installation Manual, rev.

13 Specifications Max. Allowed vibration non-operational (0-2000 Hz continuous).20 m/s Max. Shock non-operational (10 ms peak).1000 m/s MRU Junction Box, MRU-E-JB1 Material.Aluminium Enclosure protection.IP-65 GPS Antennas (L1) Enclosure material. Seatex Seapath 200 Installation Manual, rev. 13 Specifications Blank page. Seatex Seapath 200 Installation Manual, rev. 13 Installation INSTALLATION General information This chapter describes a typical ship installation of the Seapath system.

The standard system is supplied with the following parts:. The Processing Unit. The Processing Unit connection box with 1.5-metre cable. Seatex Seapath 200 Installation Manual, rev. 13 Installation In addition to the above delivered parts, the following is needed:. GPS antenna cables and the cable between the Processing Unit and the MRU junction box.

A 19-inch rack for mounting of the Processing Unit. Seatex Seapath 200 Installation Manual, rev. 13 Installation Location of the system parts The following sections contain hints regarding mounting of the various system parts: 3.3.1 The GPS antennas For the GPS antennas, consider the following:. The space above the antennas has to be free of obstructions of any kind. The antenna should be protected from direct illumination of radar beams and other transmitting antennas such as Inmarsat antennas.

Seatex Seapath 200 Installation Manual, rev. 13 Installation. The antenna baseline length is recommended in range 2.5 to 4.0 meters, but 1 to 5 meters can be used. Maximum heading accuracy is achieved at 4.0 meters baseline. The maximum length for each of the antenna coaxial cables is 100 metres for the cable type normally delivered with the system (1/2'. Seatex Seapath 200 Installation Manual, rev. 13 Installation 3.3.3 The Processing Unit For location of the Processing Unit, consider the following:.

The unit is designed for indoor installation and should not be exposed to heavy vibrations, transformers or similar. Seatex Seapath 200 Installation Manual, rev. 13 Installation The installation procedure described below assumes that the Antenna Bracket delivered by Seatex is used and that a holder for this Antenna Bracket is prepared in accordance with the antenna holder drawing in chapter 4. Seatex Seapath 200 Installation Manual, rev. 13 Installation 3. Connect the antenna cables to both GPS antennas. The connection between the antenna and the antenna cable should be sealed against water penetration, preferably by using waterproof self-vulcanising tape.

The GPS antenna cables are then strapped inside the Antenna Bracket as shown in Figure 4. Seatex Seapath 200 Installation Manual, rev.

13 Installation or transversal bulkheads of the ship with the opening pointing downward, as shown in Figure 5. This will ensure easy and accurate orientation of the MRU according to the longitudinal axis. Reserve sufficient space below the bracket to allow insertion of the MRU from below. Seatex Seapath 200 Installation Manual, rev. 13 Installation 7. Insert the MRU into the bracket.

In order to achieve the orientation as shown in Figure 5, the MRU must be rotated in the bracket. Apply Loctite 242 glue or equivalent on the four MRU screws (3).

Seatex Seapath 200 Installation Manual, rev. 13 Installation Figure 8 Junction box mounting 10. Mount the Processing Unit within a standard 19-inch rack in a preferred location. The Processing Unit has to be fastened both in front and rear of the rack. Minimum 10 cm free space is needed behind the module for connecting cables.

Seatex Seapath 200 Installation Manual, rev. 13 Installation 3.4.2 Electrical installation The electrical installation consists of:. Connecting two cables between the GPS antennas and the Processing Unit. Connecting a cable between the MRU junction box and the Processing Unit by using a direct cable or with the connection box in between. Seatex Seapath 200 Installation Manual, rev. 13 Installation 3.4.2.1 MRU to Processing Unit cable wiring The MRU can be connected to the Processing Unit in the following three ways:. A cable with the MRU connector in one end and a DB-15 male connector for the Processing Unit in the other end.

Seatex Seapath 200 Installation Manual, rev. 13 Installation It is important to insert a wire between pin 24 (LGND) and pin 27 (Shutoff) on Note the user side (x1) in the MRU junction box in order to establish RS-422 communication between the MRU and the Processing Unit. Otherwise it will be no communication between these two components. Seatex Seapath 200 Installation Manual, rev. 13 Installation The connectors on the Processing Unit for the serial lines are of DB-9 male type. Pin layout: RS-232 RS-422 Pin no. Signal Pin no.

Signal Optional The comports available on AUX - Serial connector may be used if more serial input or output lines than those described above (Com 5 to 10) are required. Seatex Seapath 200 Installation Manual, rev. 13 Installation In order to galvanically isolate these lines and maybe convert them to RS-422, the Kongsberg Seatex product HMS 100 Converter Box (part no. M410-30) can be used. 3.4.2.3 Ethernet connection The Seapath has the possibility to output data on up to eight individually configurable network ports. Seatex Seapath 200 Installation Manual, rev. 13 Installation Synchronised with this signal it is possible to output 1PPS time tag messages from Seapath.

These messages are the 1PPS NMEA ZDA (format no. 13) or the Trimble compatible message (format no. For description of the format for these messages see 'Appendix B - Output Protocols From Seapath'. Seatex Seapath 200 Installation Manual, rev. 13 Installation 3.4.2.6 Installation procedure CAUTION Attach the antenna cables to the GPS antennas on the Bracket before attaching the antenna cables to the Processing Unit. If the antenna cables are attached to the Processing Unit, do not attach the antenna cables to the GPS antennas with the Processing Unit powered on. Seatex Seapath 200 Installation Manual, rev.

13 Installation -User side x1- signal description pin signal description PWRIN+ power + 23 XIN to MRU PWRIN- power gnd 24 LGND gnd ref.aux.+dig from MRU 27 SHUTOFF of MRU -'- to MRU -'- 3. Seatex Seapath 200 Installation Manual, rev. 13 Installation 3.4.3 Setup of configuration parameters Setup consists of:. Installing the setup software SCC on an external PC. Entering lever arm vectors and mounting angles for the MRU and the GPS antennas.

Seatex Seapath 200 Installation Manual, rev. 13 Installation Figure 11 The offset vectors between the different components 3.4.3.2 Input data The Processing Unit has up to five ports for input of data. The following data can be input to the system:. Seatex Seapath 200 Installation Manual, rev. 13 Installation 3.4.3.3 Serial data output Data can be output on up to eight individually configurable serial lines (com5 to com20).

For a more detailed description of the different output formats available, see 'Appendix B - Output Protocols From Seapath'. Seatex Seapath 200 Installation Manual, rev. 13 Installation 3.4.3.4 Setup procedure The following procedure is used to configure the Processing Unit on-line: 1. Install the SCC software on an external PC if not already done.

See 'Appendix D - Seapath configuration software, SCC' on how to install the software. Seatex Seapath 200 Installation Manual, rev. 13 Installation possible, one reading from both systems should be done at least every 30 seconds for a minimum of two full hours. The long calibration time is necessary in order to cancel out errors in the Seapath measurements caused by multipath effects, which may be particularly pronounced in the static conditions of a harbour area. Seatex Seapath 200 Installation Manual, rev. 13 Installation 3. In the GPS Antenna Configuration window, input the Baseline Length 2.5 metres if the standard Antenna Bracket is used, otherwise this length has to be measured manually with 1 cm accuracy and this value entered.

For the Heading Offset input an approximate value or input zero if you are uncertain. Seatex Seapath 200 Installation Manual, rev. 13 Installation 5.

In step 2 input 120 minutes (two hours) as the calibration period and the logging interval as 10 seconds. Log the calibration data to the file 'Seapath.cal' on a preferred folder on the PC. Seatex Seapath 200 Installation Manual, rev.

13 Installation Figure 15 Page 3 of GPS Antenna Configuration 9. Inspect the logged calibration data (in the file 'Seapath.cal' ) for any wild points by selecting the command Show Graph. Correct the wild points found or delete the whole line(s) and perform a recalculation of the calibration data.

Seatex Seapath 200 Installation Manual, rev. 13 Installation Figure 16 Page 4 of GPS Antenna Configuration 11. Click Finish to accept the result and exit the antenna calibration wizard. 3.4.4.3 Calibration of MRU axis The MRU axes must be calibrated to the vessel axes after the mechanical installation. To achieve the specified roll and pitch accuracy, the offset angles between the MRU axes and the vessel axes have to be calculated to an accuracy better than 0.5 degrees. Seatex Seapath 200 Installation Manual, rev. 13 Installation The reference for roll and pitch calibration must be carefully selected depending on the intended application.

It may be the hull, or a sensor like a multibeam echo sounder or a USBL acoustic system. Seatex Seapath 200 Installation Manual, rev. 13 Installation drawings INSTALLATION DRAWINGS This chapter contains the outline drawings showing the mechanical dimensions of the Processing Unit, the GPS Antenna Bracket and Holder, the MRU 5 and its mounting bracket, and the MRU junction box. Seatex Seapath 200 Installation Manual, rev. 13 Installation drawings. Seatex Seapath 200 Installation Manual, rev.

13 Installation drawings. Seatex Seapath 200 Installation Manual, rev. 13 Installation drawings. Seatex Seapath 200 Installation Manual, rev. 13 Installation drawings. Seatex Seapath 200 Installation Manual, rev. 13 Installation drawings.

Seatex Seapath 200 Installation Manual, rev. 13 Installation drawings. Seatex Seapath 200 Installation Manual, rev. 13 Installation drawings.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix A – Installation worksheet APPENDIX A - INSTALLATION WORKSHEET Vessel Seapath serial no. MRU serial no. Place Date Installed by Signature Vessel Geometry Vessel Dimension: Length m Width m Height m Centre of Gravity (CG) Location. Seatex Seapath 200 Installation Manual, rev. 13 Appendix A – Installation worksheet GPS Antenna Processing Settings Height Aiding and SV Masking: Aid Mode (default = Off) Aided Height m (default = 0) Elevation Mask deg (default = 10) Range Rate Corrections.

Manual

Seatex Seapath 200 Installation Manual, rev. 13 Appendix A – Installation worksheet MRU Geometry MRU Lever Arm: From CG to MRU Xm (positive forward of CG) Ym (positive to starboard of CG) Zm (positive below CG) MRU Mounting Angles used.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix A – Installation worksheet Data Interface – Input Configuration Device Line Electric Baud rate Parity Data bits Stop bits Format (com) 232/422 (standard n) (st. 1) Gyro DGPS Link #1.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix A – Installation worksheet Data Interface – Digital Network Output Configuration Device Port Int s Option Format (0=CG) (st.

0) Network Out #1 Network Out #2 Network Out #3 Network Out #4. Seatex Seapath 200 Installation Manual, rev.

Seapath

13 Appendix A – Installation worksheet Blank page. Seatex Seapath 200 Installation Manual, rev.

13 Appendix B – Output protocols from Seapath APPENDIX B - OUTPUT PROTOCOLS FROM SEAPATH The available output data formats are as follows: Name Format Description NMEA NMEA and proprietary messages Simrad EM1000/950 Simrad EM1000 and 950 binary format. Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath Explanation: UTC time on format hhmmss.ss where hh is hours (00 - 23), mm is minutes (00 - time 59) and ss.ss is seconds (00.00 - 59.99). Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath gyro-calib Gyro calibration value since system start-up in degrees on format d.dd. Short-term gyro offset in degrees on format d.dd. Gyro-offs Roll in degrees on format d.dd.

Positive with port side up. Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath Element Scaling Format Bytes Value Roll radians Float Pitch radians Float Heading radians Float 0 - 2 pi Status word Bit-fields Checksum Unsigned 0 - 255 Length is number of bytes between, but not including, the Length and Checksum fields. Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath Roll is positive with port side up.

Pitch is positive with bow up. Heave is positive up. Invalid data are indicated by values outside the specified ranges.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath Calibration format The calibration format is a columnar ASCII text format for use when calibrating the GPS antenna installation. Format: Element Columns Scaling Decimals Value Time. Seatex Seapath 200 Installation Manual, rev.

13 Appendix B – Output protocols from Seapath The zeroes in the header occupy the columns used for acceleration when this format is output from other systems. Seapath does not output acceleration. S is the sign character, space if positive and '-' if negative. Dddd is a decimal number with leading zeroes where appropriate. Seatex Seapath 200 Installation Manual, rev.

13 Appendix B – Output protocols from Seapath Element Scaling Format Bytes Value Heave centimetres Integer North velocity centimetres/second Integer East velocity centimetres/second Integer Down velocity centimetres/second Integer Roll = 90 degrees Integer Pitch. Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath Lehmkuhl gyro repeater format The Lehmkuhl gyro repeater format is used when outputting heading from Seapath to Lehmkuhl gyro repeaters.

The message is similar to the HDT message output in the standard NMEA format from Seapath. Seatex Seapath 200 Installation Manual, rev.

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13 Appendix B – Output protocols from Seapath Format: Element Columns Format Header 1 - 3 Date 5 - 12 yy.mo.da Time 14 - 21 hh:mm:ss Fix type digit or '?' Of satellites.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath The status byte can have the following values: Value Interpretation Normal. Reduced performance or invalid data. 6.13 Echo sounder format 18 The echo sounder format is a proprietary ASCII text format with fixed-length records used when connecting Seabeam and other echo sounders.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath Format: Element Bytes Max. Value Start byte Status byte Unused Heading 360 deg 0 deg π rad Roll -π rad π rad Pitch -π rad. Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath The codes are: Normal. Reduced accuracy.

Normal or reduced accuracy. 6.15 Cyclic redundancy check algorithm The 16-bit Block Cyclic Redundancy Check algorithm used to calculate the checksum in some formats is described in C and Fortran source code below. Seatex Seapath 200 Installation Manual, rev. 13 Appendix B – Output protocols from Seapath IF (len.EQ.0) THEN crc = 0 RETURN END IF DO i = 1, len data = ICHAR(inbuffer(i:i)) DO bit = 1, 8 data = IAND(data,16#FF) IF (IAND(crc,16#01).EQ.(IAND(data,16#01))) THEN. Seatex Seapath 200 Installation Manual, rev. 13 Appendix C – Installation of coax connectors APPENDIX C - INSTALLATION OF COAX CONNECTORS ON SUPERFLEX CABLE This is the assembly instruction for the Huber+Suhner connectors 11 716-50-9-9, 11 N-50-9- 9, 21 716-50-9-9 and 21 N-50-9-9. This connector consists of one part.

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Seatex Seapath 200 Installation Manual, rev. 13 Appendix C – Installation of coax connectors. Seatex Seapath 200 Installation Manual, rev. 13 Appendix C – Installation of coax connectors. Seatex Seapath 200 Installation Manual, rev. 13 Appendix C – Installation of coax connectors. Seatex Seapath 200 Installation Manual, rev.

13 Appendix C – Installation of coax connectors. Seatex Seapath 200 Installation Manual, rev. 13 Appendix C – Installation of coax connectors Blank page. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC APPENDIX D - SEAPATH CONFIGURATION SOFTWARE, SCC The SCC ( Seapath Control Centre ) program is used to set configuration parameters in Seapath.

It runs under Microsoft Windows 98, NT 4.0, Me, 2000 and XP or compatible operational systems except Japanese and Chinese versions of Windows. Start Microsoft Windows. Start SCC by double-clicking on the SCC icon. The Seapath SCC start window shows the software version, and a rotating Kongsberg Seatex AS logo indicates a running application.

To continue, click one of three buttons: 1. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC If option 2 ( Offline ) is selected, the dialogue box shown in Figure 20 appears. Tick off for Open existing Seapath parameter file or Create a Seapath demo parameter file, and choose type of Seapath. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC 8.2.2 Setting the serial port parameters Click the SCC-Seapath Port Configuration button, or pull down the Options File menu and select the SCC to Seapath Communication / Port Configuration option. The dialogue box for communication setup appears (Figure 22), select connector and baud rate.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 23 Connect Status Figure 24 Connected to Seapath Before editing parameter values belonging to a connected Seapath, it is Note recommended to perform an Upload from the Seapath first. See chapter 8.4.6.2. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC General user interface 8.3.1 File menu In the File menu following options are available:. Open Configuration. (See description in chapter 8.4.6.4, 'Load from file'). Save Configuration.

(See chapter 8.4.6.3, 'Save on file'). Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC 8.3.2 Wizards menu Pull down Wizards menu. Two options are available:. MRU configuration. GPS Antenna Calibration.

Click on the MRU configuration option or click on the tool button MRU Configuration Wizard, to activate the MRU Axis Orientation window. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC 8.3.4 Help menu Pull down the Help menu. Click on the About SCC option and the About SCC window below appears.

A scroll window contains information about Company, software version and the software application. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC 8.3.6 Seapath Control Centre button The Seapath Control Centre button is located below the other tool buttons. Click on the button to see the folder list below. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Right click in the window to activate menu for alternative view settings.

Alternative to Ghost mode is Wireframe. 8.3.7 Mouse operation The mouse operations for the 3D-View and the 'vessel window' are as follows:.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Editing parameter values When contact with the Seapath Processing Unit is established parameter values are loaded from Seapath into the local memory in the SCC computer where they can be inspected and modified. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 32 Vessel Geometry 8.4.1.2 Vessel description In this folder vessel data for the specific Seapath configuration file are entered. This information is helpful to identify the correct configuration file at a later stage.

Proceed as follows:. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC 8.4.2 GPS sensor settings 8.4.2.1 GPS geometry The lever arm vector from the centre of gravity to GPS antenna no. 1 has to be measured or calculated based upon drawings or previously measured points, and entered into the software.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC. The SV Masking value can be changed from the default value 10 by entering an Elevation Mask value between 7 and 20 degrees. This value must not be changed by other than experts from the default value 10. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC 8.4.2.3 GPS reference stations If data from more than one reference station are available on the DGPS correction links, Seapath combines data from up to six reference stations to obtain the best solution.

The default configuration is to automatically use the six nearest stations available. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC will be used to make the same set of SBAS corrections. Then it is very important that the satellites are from the same SBAS system and that they send exactly the same information.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 38 GPS Antenna Configuration. Activate the Calibration Wizard button and page 1 of the GPS Antenna Calibration appears. Enter the baseline and calibration information asked for in step 1 and 2, and click Next in order to proceed to page 2. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC. Click Next in the GPS Antenna Calibration page 1 and the GPS Antenna Calibration page 2 appears and the calibration process starts automatically.

Measurements for Seapath Heading, Gyro Compass, Antenna Baseline and Height Difference are shown in a graphical presentation in their respective diagram. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 41 Stop Antenna Calibration. Click Next after the calibration process has finished and the wizard continues to page 3. Figure 42 Page 3 of GPS Antenna Configuration. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC dialogue box also appears when clicking on one of the cells Heading, Gyro, Baseline or Height Difference.

Change the wanted information; click the Set button, and the Edit Calibration Data dialogue box disappears. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 44 Page 4 of GPS Antenna Configuration 8.4.2.6 GPS attitude processing In the Configuration Folder List, select Sensor GPS Attitude Processing. Enter the maximum values to be used for attitude processing. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC 8.4.3 MRU sensor settings 8.4.3.1 MRU geometry The lever arm vector from the centre of gravity to the MRU location has to be measured or calculated based upon drawings or previously measured points, and entered into the software. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 47 Step 1 of MRU Axis Orientation Manual setup:. Manual setup selected in Step 1. Click Next to go to the Step 2 –Manual window as shown in Figure 48. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC.

Click the Next button in the lower right corner in order to proceed to Step 3 - Manual. At the top of the Step 3-Manual window the found main rotation angles for the MRU are displayed. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 50 Positive offset angles rotations. Click Finish to finish the manual setting of the MRU axis.

The new MRU mounting angles are only valid in the Seapath after download of Note parameters. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC. First, input the actual roll and pitch angles of the vessel. A positive vessel angle is from the red to the green co-ordinate system or: Positive pitch angle if the bow is up. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC 8.4.3.2 MRU heave configuration When using Seapath for heave measurements, it is important to tune the heave parameters (heave period and damping) to the vessel size and the motion characteristics for the actual weather conditions.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC For more details on selection of heave filter mode and parameters, see the User's Manual. In order to select the heave configuration proceed as follows:. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC Figure 54 Measurement Points Geometry If data shall be valid for centre of gravity, it is not necessary to define a zero Note vector since the data is default output in CG. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 55 Common Host Settings 8.4.5.2 Network common In order to output Seapath data on the Ethernet connector as an UDP (User Datagram Protocol) diagram the following parameters have to be set:. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 56 Common Network Settings Check with the network administrator on board the vessel for the correct selection of network address and mask. 8.4.5.3 Input In this folder list, all the input interface to the Seapath unit is selected.

The following four devices can be input to the unit:. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC To setup the input interface proceed as follows:. In the Configuration Folder List, select Data Interface Input.

Activate the device to be interfaced by clicking on the checkbox in front of the device name. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC Figure 60 RTCM Format Decoding The options for Roll Bytes The options for Bits/Byte are: are: MSB First (Roll ON) 6 of 8 LSB First (Roll OFF) 8 of 8. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 62 Data Interface - Output Configuration In order to set up the different output devices, proceed as follows:.

In the Configuration Folder List, select Data Interface Output. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 64 Analog Settings. Click in the wanted MP# cell and the Select Measurement Point dialogue box below appears.

Select the wanted Measurement Point and click OK. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC. Option 8. The selection 8 together with selection of NMEA HDT message sets up the system not to output heading data if the heading accuracy gets reduced. This option is normally not used.

Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC Figure 69 Analog Format Settings The options for Analog Format settings are: Roll rad Pitch rad Heave m Mod.Roll rad sin(Mod.Roll) -1 to 1 sin(-Pitch) -1 to 1. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC The analog format Constant can be selected to test one of the analog channels. When Constant is selected as analog format, the Test Analog Channels dialog shown in Figure 71 appears by clicking in the Properties field. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC 8.4.6.2 Upload In the Configuration Folder List, select Parameter Management Upload. Click the button Upload Parameters from Seapath to upload parameters from Seapath to the SCC computer. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC 8.4.6.4 Load from file Seapath parameters stored on file in the SCC computer can be loaded back into the workspace area for further editing or/and downloaded to Seapath.

In the Configuration Folder List, select Parameter Management Load from file, and the window below appears. Seatex Seapath 200 Installation Manual, rev. 13 Appendix D – Seapath configuration software, SCC 8.4.6.6 Generate report A report with a list of all the configuration settings in the connected MRU or a configuration read from file is generated by clicking the Generate configuration report button as shown in Figure 77. Seatex Seapath 200 Installation Manual, rev.

13 Appendix D – Seapath configuration software, SCC Blank page. Seatex Seapath 200 Installation Manual, rev. 13 Index Index accuracy, 31, 35 Fansweep, 60 ADCP, 57 Format, 102 alignment, 36 formats, 51 analog, 103 FTP, 100 antenna baseline, 86 Antenna Bracket, 11, 15 Antenna Calibration, 88 assembly, 65 Atlas format, 60. Seatex Seapath 200 Installation Manual, rev. 13 Index RS-422, 102 Manual setup, 93 measurement points, 98 misalignment, 36 Safety, 10 mounting angles, 92 Save on file, 109 mouse pointer, 80 SBAS, 84, 85 MRU lever arm, 92 SCC, 71 MRU Mounting Wizard, 92. Seatex Seapath 200 Installation Manual, rev. 13 Reader's comments Reader's comments Please help us to improve the quality of our documentation by returning your comments on this manual.

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