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Maretron SSC200 manual

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Table of contents for the manual

  • Page 1

    Revision 1.8 Page i ® ® SSC200 Solid State Rate/Gyro Compass User’s Manual Revision 1.8 Copyright © 2012 Maretron, LLP All Rights Reserved Maretron, LLP 9014 N. 23 rd Ave #10 Phoenix, AZ 85021-7850 http://www.maretron.com Maretron Manual Part #: M000401[...]

  • Page 2

    SSC200 User’s Manual Page ii Revision 1.8 Revision History Revision Description 1.0 Original document. 1.1 Minor editorial changes. Corrected default rate for Rate of Turn PGN under Technical Specifications. 1.2 Minor editorial changes. Removed Warranty Card. 1.3 Changed copyright to 2005. Added text to describe new feature (programmable variatio[...]

  • Page 3

    Revision 1.8 Page iii ® ® Table of Contents 1  General ....................................................................................................................... ....... 1  1.1  Introduc tion ................................................................................................................ 1  1.2  Firmwar[...]

  • Page 4

    SSC200 User’s Manual Page iv Revision 1.8 Table of Figures Figure 1 – Mounting the SSC200 to a Horizontal Surface ......................................................... 4 Figure 2 – Mounting the SSC200 to Vertical Surface ................................................................ 5 Figure 3 – NMEA 2000 ® / NMEA 0183 Interface C on[...]

  • Page 5

    Revision 1.8 Page 1 ® ® 1 General 1.1 Introduction Congratulations on your purc hase of the Maretron SSC200 Solid State Rate/Gyro Compass. Maretron has designed and built your compass to the highest standards for years of reliable, dependable, and accurate service. The SSC200 detects the direction of the earth’s magnetic field using solid state[...]

  • Page 6

    SSC200 User’s Manual Page 2 Revision 1.8 6. Calibrate the SSC200 Compass for Installation-Offset (Section 3.2 ) 7. Use Default Variation Source or Select an Appropriate Variation Source (Section 4 ) 2 Installation 2.1 Unpacking the Box When unpacking the box containing the Maretron SSC200, you should find the following items. • 1 - SSC200 Solid[...]

  • Page 7

    Revision 1.8 Page 3 ® ® switched on and off, which makes compensation im practical. Therefore, you should try to mount the compass as far away as possible from these magnetic field sources (doubling the distance between the magnetic field source and the compass will reduce the field strength by a factor of approximately 8) . Also, always observe [...]

  • Page 8

    SSC200 User’s Manual Figure 1 – Mounting the SSC200 to a Horizontal Surface 2.3.2 Mounting the SSC200 to a Vertical Surface Mounting the SSC200 compass to a vertical surface requires that the provided mounting brackets be fastened to the side of the SSC200 using the prov ided brass flat head screws. Once the mounting brackets are securely fa st[...]

  • Page 9

    ® ® Figure 2 – Mounting the SSC200 to Vertical Surface 2.4 Connecting the SSC200 You have a choice of connec ting the SSC200 to a NMEA 2000 ® interface (Section 2.4.1 ), NMEA 0183 interface (Section 2.4.2 ), or connecting both interf aces simultaneously (Section 2.4.2.2 ). Revision 1.8 Page 5[...]

  • Page 10

    SSC200 User’s Manual Page 6 Revision 1.8 NMEA 2000 / Power Connecto r NMEA 0183 Connector Figure 3 – NMEA 2000 ® / NMEA 0183 Interface Connector Locations 2.4.1 Connecting to NMEA 2000 ® Interface The Maretron SSC200 provides a connection to an NMEA 2000 ® interface through a five pin male connector ( Figure 4 ). You connect the SSC200 to an[...]

  • Page 11

    ® ® Figure 5 - SSC200 with NMEA 2000 ® Connection Only 2.4.2 Connecting to NMEA 0183 Interface The Maretron SSC200 provides a connection to an NMEA 0183 interface through an eight pin male connector ( Figure 6 ). You connect the SSC200 to an NMEA 0183 network using the Maretron supplied 10 meter cable by connecting the female end of the cable to[...]

  • Page 12

    SSC200 User’s Manual Figure 6 – NMEA 0183 Connector Face Views Connect the other end of the cable consisting of individual wires using recommended practices for installing NMEA 0183 produc ts. Please note that NMEA 0183 does not have a standard for connectors and the customer/installer should cont act the manufacturer of the equipment to which [...]

  • Page 13

    ® ® Figure 8 - SSC200 with NMEA 0183 Connection Only 2.4.2.2 Supported NMEA 0183 Baud Rates The SSC200 compass supports NMEA0183 co mmunication at both 4800 baud and 38400 baud. All SSC200 Compasses are shipped with a baud rate of 4800 baud. The baud rate may be set to 38400 baud by connecting to the compa ss using a teminal emulator (See Appendi[...]

  • Page 14

    SSC200 User’s Manual Page 10 Revision 1.8 This causes the new baud rate to be stored to non-volatile memory, so the compass will retain this baud rate when it is powered down. 2.4.3 Connecting Both NMEA 2000 ® and NMEA 0183 Interfaces The SSC200 can be simultaneously connected to both an NMEA 2000 ® network and an NMEA 0183 network. 2.4.4 Check[...]

  • Page 15

    Revision 1.8 Page 11 ® ® values in its permanent memory. Therefore, it is important to verify that the deviation calibration process completed successfully. The preferred method for deviation calibration is to use a Maretron display (procedure 1) because you receive direct feedback on the calib ration process with a clear indication of a successf[...]

  • Page 16

    SSC200 User’s Manual Page 12 Revision 1.8 4. While continuing to turn the vessel as indicated in step 3, remove the power from the compass and reapply power (this in itiates deviation calibration). 5. Continue turning the vessel through four complete circles in less than 10 minutes from the time power was applied. 6. Successful deviation is indic[...]

  • Page 17

    Revision 1.8 Page 13 ® ® 2. With the vessel laying flat in the water, adjust the pitch ang le of the SSC200 by adding small washers or spacers between the mounting bracket holes and mounting surface until the display reads zero for the pitch angle (skip this step if you are not interested in viewing the vessel’s pitch angle). 3. With the vessel[...]

  • Page 18

    SSC200 User’s Manual Page 14 Revision 1.8 1. Transmit the Heading, Devi ation & Variation ( HDG) sentence includ ing the variation field as seen from the RMC or VTG sentence over the NMEA 0183 interface if HDG is enabled (see Appendix A for enabling or disabling NMEA 0183 sentences). 2. Transmit the Heading True (HDT) sentence using variati o[...]

  • Page 19

    Revision 1.8 Page 15 ® ® 4.4 Variation Source Selection As shipped from the factory, the SSC200 automatically looks fo r variation from both the NMEA 0183 and NMEA 2000 ® interfaces. If there is only a single source of variation available (either from the NMEA 0183 or the NMEA 2000 ® interface), then there is no need to manually select a variat[...]

  • Page 20

    SSC200 User’s Manual Page 16 Revision 1.8 5.1 Rate of Turn Damping Period Selection with Maretron Display You can program the SSC200 to us e a particular rate of turn damping period using a Maretron display product (e.g., DSM200). Refer to the display product user’s manual for details on programming the SSC200 to use a specific damping period. [...]

  • Page 21

    Revision 1.8 Page 17 ® ® 7 Troubleshooting If you notice unexpected operation of the Ma retron SSC200, follow the troubleshooting procedures in this section to remedy simple problems. Symptom Troubleshooting Procedure No heading output Check the connections to the NMEA 2000 ® /Power connector and/or NMEA 0183 Connector and tighten if necessary E[...]

  • Page 22

    SSC200 User’s Manual Page 18 Revision 1.8 8 Technical Specifications Specifications Parameter Value Comment Static Heading Accura cy <1° rms ±45° Pitch and Roll - 15°C to 35°C Heading Display Resolution 0.1° With Maretron Display Settling Time 1 Second To Static Accuracy after 35°/Second Turn Heading Deviation Yes Automatic or Initiated[...]

  • Page 23

    Revision 1.8 Page 19 ® ® Electrical Parameter Value Comment Operating Voltage 9 to 16 Volts DC Voltag e Power Consumption <15 0mA Average Current Drain Load Equivalence Number (LEN) 3 NMEA 2000 ® Spec. (1LEN = 50 mA) Reverse Battery Protection Yes Indefinetely Load Dump Protection Yes E nergy Rated per SAE J1113 Mechanical Parameter Value Com[...]

  • Page 24

    SSC200 User’s Manual 10 Installation Template Please check the dimensions before using the follo wing diagrams as templates for drilling the mounting holes because the printing proc ess may have distorted the dimensions. Page 20 Revision 1.8 3 87” 1.42” Figure 10 – Horizontal Mounting Surface Template 2.75” Figure 11 – Vertical Mo untin[...]

  • Page 25

    Revision 1.8 Page 21 ® ® 11 Maretron (2 Year) Limited Warranty Maretron warrants the SSC200 to be free from defects in materials and workm anship for two (2) y ears from the date of original purchase. If within the applicable per iod any such products shall be p roved to Maretron’s satisfaction to fail to meet the above lim ited warranty, such [...]

  • Page 26

    SSC200 User’s Manual Page 22 Revision 1.8 This page intentionally left blank[...]

  • Page 27

    Revision 1.8 Appendix A – NMEA 0183 Interfacing Page A1 ® ® Appendix A – NMEA 0183 Interfacing SSC200 NMEA 0183 Transmitted Sentences HDG – Heading, Deviation & Variation The SSC200 indicates heading 10 times a second. The deviation field always contains zero as the SSC200 reports it’s heading with the deviation included. The variatio[...]

  • Page 28

    SSC200 User’s Manual Page A2 Appendix A – NMEA 0183 Interfacing Revision 1.8 D-I: Null TXT – Text Transmission The SSC200 transmits various status messages using the text transmission senten ce. $IITXT,A,B,C,D*hh<CR><LF> Field A: Always reads “01” B: Always reads “01” C: Message identifier (see following table) D: Text str[...]

  • Page 29

    Revision 1.8 Appendix A – NMEA 0183 Interfacing Page A3 ® ® SSC200 NMEA 0183 Received Sentences Note on NMEA 0183 Checksums For ease of manual configuration of the SSC200 via the NMEA 0183 Interface, NMEA 0183 checksums are optional. If no checksum is present in a received sentence, then the sentence is treated as if a valid checksum were prese[...]

  • Page 30

    SSC200 User’s Manual Page A4 Appendix A – NMEA 0183 Interfacing Revision 1.8 $PMAREXE,SSC200,,5D,2,,,<CR><LF> This command causes the SSC200 to use variation data from the NMEA 0183 interface and ignore all other variation sources (i.e., NMEA 2000 ® interface and manual entries). $PMAREXE,SSC200,,5D,3,,,<CR><LF> This co[...]

  • Page 31

    Revision 1.8 Appendix A – NMEA 0183 Interfacing Page A5 ® ® 5. To disable transmission of the HDT sentence: $PMARSETPX,SSC200,,02,0 6. To enable transmission of the HDT sentence at intervals of 100 ms: $PMARSETPX,SSC200,,02,100 7. To disable transmission of the ROT sentence: $PMARSETPX,SSC200,,03,0 8. To enable transmission of the RO T sentence[...]

  • Page 32

    SSC200 User’s Manual Page A6 Appendix A – NMEA 0183 Interfacing Revision 1.8 5. Continue turning the vessel through at l east 3 circles until you see one of the following Maretron proprietary sentences: a. $IITXT,01,01,02,Deviation Calibration Successfully Completed*17<CR><LF> This sentence indicates a successful calibrati on and yo[...]

  • Page 33

    Revision 1.8 Appendix B – NMEA 2000 ® Interfacing Page B1 ® ® Appendix B – NMEA 2000 ® Interfacing SSC200 NMEA 2000 ® Periodic Data Transmitted PGNs PGN 127250 – Vessel Heading The SSC200 uses this PGN to indicate the vessel’s heading. The Heading Sensor Reading (field 2) includes deviation, theref ore Deviation (field 2) always cont a[...]

  • Page 34

    SSC200 User’s Manual Page B2 Appendix B – NMEA 2000 ® Interfacing Revision 1.8 2: Yaw – This field always contains a value of 0x7FFF (data not available). 3: Pitch – This field is used to report the vessel’s pitch. 4: Roll – This field is used to report the vessel’s roll. 5: Reserved – This field is reserved by NM EA; therefore, th[...]

  • Page 35

    Revision 1.8 Appendix B – NMEA 2000 ® Interfacing Page B3 ® ® Status Code Message Name Description 01 Deviation Calibration Started This me ssag e is transmitted at the beginning of the magnetic deviation calibration process. 02 Deviation Calibration Completed Successfully This message is transmitted upon successful completion of the magnetic [...]

  • Page 36

    SSC200 User’s Manual Page B4 Appendix B – NMEA 2000 ® Interfacing Revision 1.8 12: Maretron Command – set this field’s value to 0xF0, which will initiate a reset and start the calibration process. PGN 126208 – NMEA Command Group Function – Maretron Proprietary Installation Offset. This PGN performs the installation offset of the compas[...]

  • Page 37

    Revision 1.8 Appendix B – NMEA 2000 ® Interfacing Page B5 ® ® SSC200 NMEA 2000 ® Initiated Deviation Calibration NMEA 2000 ® initiated deviation calibra tion is accomplished by turning the vessel through at least 3 complete circles after the SSC200 receives a Maretron proprietary NMEA 2000 ® PGN. The procedure is as follows: 1. Ensure that [...]

  • Page 38

    SSC200 User’s Manual Page B6 Appendix B – NMEA 2000 ® Interfacing Revision 1.8 This page intentionally left blank[...]

  • Page 39

    Revision 1.8 Appendix C – Connecting to a PC Via NMEA 0183 Page C1 ® ® Appendix C – Connecting to a PC Via NMEA 0183 In order to perform configuration of the SSC200 ove r the NMEA 0183 interface, it is preferable that the connection be made by a RS-232 to RS-422 level converte r. In the case that a level conve rter is not available, the follo[...]

  • Page 40

    SSC200 User’s Manual Page C2 Appendix C – Connecting to a PC Via NMEA 0183 Revision 1.8 This page intentionally left blank[...]

  • Page 41

    Revision 1.8 Appendix D – Transmi tting True Heading Data Page D1 ® ® Appendix D – Configuring the SSC200 to Transmit True Heading Data The SSC200 is factory configured to transmit magnet ic hea ding data on the NMEA0183 interface. Some NMEA 0183 applications require true hea ding d ata. This applicat ion note describes how to configu re the [...]

  • Page 42

    SSC200 User’s Manual Page D2 Appendix D – Transmitting True Heading Data Revision 1.8 $PMAREXE,SSC200,,5D,0, <variation> ,, Where <variation> is the m agneti c variation in units of degrees and resolution in t enth of degrees – positive values represent easterly variation, and negative values re present westerly variation. For exa[...]

  • Page 43

    Revision 1.8 Appendix E – Transmitting the HDT Sentence Page E1 ® ® Appendix E - Configuring the SSC200 to Transmit the HDT Sentence for Satellite Antennas and Radars The SSC200 is factory configured to tr ansmit the HDG sentence 10 times pe r second. However, certain satellite antennas and radars n eed the HDT sentence. This app lication note [...]

  • Page 44

    SSC200 User’s Manual Page E2 Appendix E – Transmitting the HDT Sentence Revision 1.8 This page intentionally left blank[...]

  • Page 45

    Revision 1.8 Appendix F – Changing the NMEA 0183 Identifier Page F1 ® ® Appendix F – Changing the NMEA0183 Identifier Transmitted by the SSC200 The identifier for NMEA0183 sentences t ran smitted by the SSC200 is set by the factory to be “II”; however, some users may need to change this to other v alues. This addendum explains how to chan[...]