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72
94-0561-D
NMEA Raw
A 42-character string:
$RLS,±AAA.AA,±BBB.BB,S1,XXX.XXX,S2,HHHH*CC<CR><LF>
Where:
• $RLS message header
• AAA.AA resolved raw position in A axis [metres]
• BBB.BB resolved raw position in B axis [metres]
• S1 status of position data in A and B axis, A - available; V - void
• XXX.XXX resolved bearing of vessel with respect to A axis [degrees]
• S2 status of bearing data, A - available; V - void
• HHHH status word in hexadecimal. Up to 16 bits defined by
Wärtsilä Guidance Marine in a separate specifications document
• CC computed checksum in hex
• <CR> Carriage return (ASCII 0D hex)
• <LF> Line feed (ASCII 0A hex)
10.8
Configuring the SceneScan System
10
DP Message Types
NMEA Primary
A 42 character string:
$RLS,±AAA.AA,±BBB.BB,S1,XXX.XXX,S2,HHHH*CC<CR><LF>
Where:
• $RLS message header
• AAA.AA resolved primary position in A axis [metres]
• BBB.BB resolved primary position in B axis [metres]
• S1 status of position data in A and B axis, A - available; V - void
• XXX.XXX resolved bearing of vessel with respect to A axis [degrees]
• S2 status of bearing data, A - available; V - void
• HHHH status word in hexadecimal. Up to 16 bits defined by
Wärtsilä Guidance Marine in a separate specifications document.
• CC computed checksum in hex
• <CR> Carriage return (ASCII 0D hex)
• <LF> Line feed (ASCII 0A hex)
The scene’s co-ordinates are entered in Northings and Eastings, AAA.AA and
BBB.BB will also be in Northings and Eastings and XXX.XXX will be true vessel
heading.