Interface specifications
The MS70 Multibeam scientific sonar will interface with peripheral systems and sensors using standard and/or proprietary datagram formats.
Supported datagram formats for position information
The MS70 supports the following datagram formats for position information.
•  Auto
This choice allows the MS70 to read all relevant datagrams. If the specified information is provided to the MS70 on more than one datagram format, a built-in priority list will be used.
•  NMEA GGA
The NMEA GGA datagram transfers the time, position and fix related data from a global positioning system (GPS).
•  NMEA GLL
The NMEA GLL datagram transfers the latitude and longitude of vessel position, the time of the position fix and the current status from a global positioning system (GPS).
•  NMEA RMC
The NMEA RMC datagram transfers the time, date, position, course and speed data from a global navigation satellite system (GNSS) receiver.
Supported datagram formats for speed information
The MS70 supports the following datagram formats for speed information.
•  Auto
This choice allows the MS70 to read all relevant datagrams. If the specified information is provided to the MS70 on more than one datagram format, a built-in priority list will be used.
•  NMEA RMC
The NMEA RMC datagram transfers the time, date, position, course and speed data from a global navigation satellite system (GNSS) receiver.
•  NMEA VBW
The NMEA VBW datagram contains water referenced and ground referenced vessel speed data.
•  NMEA VTG
The NMEA VTG datagram contains the actual course and speed relative to the ground.
Supported datagram formats for heading information
The MS70 supports the following datagram formats for vessel heading and/or gyro information.
•  Auto
This choice allows the MS70 to read all relevant datagrams. If the specified information is provided to the MS70 on more than one datagram format, a built-in priority list will be used.
•  NMEA HDG
The NMEA HDG datagram provides heading from a magnetic sensor. If this reading is corrected for deviation it produces the magnetic heading. If it is offset by variation, it provides the true heading.
•  NMEA HDM
The NMEA HDM datagram provides vessel heading in degrees magnetic. The datagram format is no longer recommended for use in new designs. It is often replaced by the NMEA HDG telegram.
•  NMEA HDT
The NMEA HDT datagram provides the true vessel heading. The information is normally provided by a course gyro.
•  NMEA VHW
The NMEA VHW datagram contains the compass heading to which the vessel points, and the speed of the vessel relative to the water.
Supported datagram formats for distance information
The MS70 supports the following datagram format for vessel distance information.
•  NMEA VLW
The NMEA VLW datagram contains the travelled distance of the vessel. Two values are provided; relative to the water and over the ground.
Supported datagram formats for sound speed sensors
The MS70 supports the following datagram formats from a sound speed sensor.
•  AML
This is a third-party proprietary datagram format created by AML Oceanographic for use with their sound speed sensors. The file format is ASCII with a five line headers plus a variable number of data lines. For more information, see http://www.amloceanographic.com.
•  Sippican SVP
This is a third-party proprietary datagram format created by Lockheed Martin Sippican, Inc for use with their sound speed sensors. The file format is ASCII, and it comprises several lines and comments. For more information, see http://www.sippican.com.
Supported datagram formats for motion information
The MS70 supports the following datagram formats from a motion sensor.
•  Simrad TSS1
Simrad Sounder/TSS1 is a proprietary datagram format created by Kongsberg Maritime for heave, roll and pitch compensation. When you select this protocol, the number of sensor variables is fixed, and there is no token associated with it.
•  Kongsberg EM Attitude 1000
The EM Attitude 1000 is a proprietary datagram format created by Kongsberg Maritime for use with digital motion sensors. It holds roll, pitch, heave and heading information. The datagram contains a 10-bytes long message. In many new designs, this datagram format has been replaced with EM Attitude 3000 format.
•  Kongsberg EM Attitude 3000
The EM Attitude 3000 is a proprietary datagram format created by Kongsberg Maritime for use with digital motion sensors. It holds roll, pitch, heave and heading information. The datagram contains a 10-bytes long message.
Supported datagram formats for depth information
The MS70 supports the following datagram formats for depth output.
•  NMEA DBS
The NMEA DBS datagram provides the current depth from the surface. The datagram is no longer recommended for use in new designs. It is frequently replaced by the NMEA DPT datagram.
•  NMEA DBT
The NMEA DBT datagram provides the current depth under the transducer. In new designs, this datagram is frequently used to replace the DBK and DBS datagrams.
•  NMEA DPT
The NMEA DPT datagram provides the water depth relative to the transducer, and the offset of the measuring transducer.
•  Simrad EK500 Depth
Simrad EK500 Depth is a proprietary datagram format created by Kongsberg Maritime. It was originally defined for the Simrad EK500 scientific echo sounder. It provides the current depth from three channels, as well as the bottom surface backscattering strength and the athwartships bottom slope. This telegram has been designed for output on either a serial line or a local area network Ethernet connection.
•  Atlas Depth
Atlas Depth is a proprietary datagram format created by Atlas Elektronik (http://www.atlas-elektronik.com) to provide the current depth from two channels.