User manual SIMRAD ITI TRAWL SYSTEM SERIAL DATA COMMUNICATION REV A

[. . . ] Instruction manual Simrad ITI Trawl System Serial data communication and NMEA 0183 message description 11111010001010101010 01010100100010100011 01010101000101010100 10101001100001111. . . . . . . . . . . . . . . . . Simrad ITI Trawl system Serial data communication and NMEA 0183 message description Instruction manual 857-164777 / Rev. A Note Simrad AS makes every effort to ensure that the information contained within this document is correct. However, our equipment is continuously being improved and updated, so we cannot assume liability for any errors which may occur. Warning The equipment to which this manual applies must only be used for the purpose for which it was designed. Improper use or maintenance may cause damage to the equipment or injury to personnel. [. . . ] All telegrams with other Talker identifiers are received by ITI from external equipment. Message description Below you will find the message description for ITI topside software version 5. 30 or above. Note The *hh check sum, <cr> carriage return and <lf> line feed are not described for each sentence. 857-164777 / A 11 Simrad ITI NMEA output from ITI $IIVTG, , , xxx, M, yy. y, N, , *hh<cr><lf>Vessel course and speed requires input from a nav. $IIZDA, hhmmss. ss, dd, MM, yyyy, xx, xx*hh<cr><lf> Time & Date of ITI equals UTC ±5 seconds if GPS connected. hh is the hours mm is the minutes ss. ss is the seconds and parts of seconds dd is the day's date MM is the month yyyy is the year xx, xx is the local time zone (hh, mm) positive offset east of Greenwich. @IITPT, xxxx, M, y, P, zzzz. z, M<cr><lf> Trawl Position True vessel TPT represents the True Trawl Position relative to the vessel. - requires an active depth sensor on the trawl or manual set depth, if not the slant range will be presented. zzzz. z, M is the depth in metres of trawl below the surface (0 - 2000 m). - requires an active depth sensor on the trawl or manual set depth, if not the depth field will be empty. 12 857-164777 / A Instruction manual @IITPC, x, M, y, M, z, M<cr><lf>Trawl Position in Cartesian co-ordinates TPC represents the Trawl Position in Cartesian co-ordinates. Value is positive if trawl is on starboard side, negative if on port side. - requires an active depth sensor on the trawl or manual set depth, if not the slant range will be presented. y, M is the horizontal distance in metres from the transducer to the trawl along the vessel's centre line. The value will normally be positive as the trawl is usually behind the vessel. - requires an active depth sensor on the trawl or manual set depth, if not the slant range will be presented. - requires an active depth sensor on the trawl or manual set depth, if not the depth field will be empty. $IIGLL, ddmm. hhh, N, dddmm. hhh, W, hhmmss. ss, A*hh<cr><lf> Trawl Position in Latitude and Longitude GLL represents the trawls Geographical Latitude and Longitude. A valid - never invalid, terminates output after one minute without GLL input from a nav. Receiver. $IIDBS, , , xxxx. x, M, , *hh<cr><lf>Depth of trawl Below Surface DBS represents Depth of the trawl Below the Surface. - requires an active depth sensor on the trawl. 857-164777 / A 13 Simrad ITI $IIMTW, -xx. x, C*hh<cr><lf> Water temperature at the trawl MTW represents the Meteorological Temperature in the Water. - requires an active temperature sensor on the trawl. @IIHFB, x. x, M, y. y, M<cr><lf> Trawl Headrope to Footrope and Bottom (Trawl Eye/Height sensor 1) HFB represents the distances from the Headrope to the Footrope and Bottom. x. x, M is the distance in metres from headrope to footrope (0 - 100 m). y. y, M is the distance in metres from headrope to bottom (0 - 100 m). @IIHB2, x. x, M, y. y, M<cr><lf> Trawl Headrope to Footrope and Bottom (Height sensor 2) HB2 represents the distances from the Headrope to the Footrope and Bottom. x. x, M is the distance in metres from headrope to footrope (0 - 100 m). y. y, M is the distance in metres from headrope to bottom (0 - 100 m). @IITDS, x. x, M<cr><lf> Trawl Door Spread 1 TDS represents the Trawl Door Spread 1 distance. x. x, M is the spread distance in metres (0 - 300 m) - if invalid, nullfields will be transmitted - filtered values if sensorfilter is on. @IITS2, x. x, M<cr><lf> Trawl Door Spread 2 TS2 represents the Trawl Door Spread 2 distance. [. . . ] y, M is the horizontal distance in metres from the trawl to the shoal is the direction of the vessel's centre line. The value will bepositive if the shoal is ahead of the trawl, negative if the shoal is behind the trawl. The value will be positive if the trawl is above the shoal, negative if the trawl is below the shoal. Note This sentence requires the @SSTPP sentence from a scanning sonar, an active depth sensor on the trawl and gyro input on both sonar and ITI. $SDDBS, x. x, f, y. y, M, z. z, F*hh<cr><lf> Sounder Depth Below Surface SD represents Sounder Depth. [. . . ]