Konsberg AIS 200, Руководство по установке

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Kongsberg AIS 200 Installation Manual, rev. 2 Appendix B - Digital interface IEC 61162-1
in the interrogation; and field 5 (Function Reply Status) and a new checksum are added to the
entence. LRF reply s
NOTE 1 This is used to bind the contents of the LRI and LRF sentences together. The LRF
sentence shall immediately follow the LRI sentence and use the same sequence
number. The requestor process shall increment the sequence number each time a
LRI/LRF pair is created. After 9 is used, the process shall begin again from 0. The
Long-range interrogation is not valid if the LRI and LRF sequence numbers are
different.
NOTE 2 The Function request field uses alphabetic characters based upon IMO Resolution
A.851(20) to request specific information items. Specific information items are
in which the characters appear in the string is not important.
All characters are upper case. Information items will not be provided if they are
not all of the defined information
is available from the AIS. The following is a list of the function identification
P = Ship/Cargo
U = Ship's: length, breadth, type
NOTE 3 The "Function Reply Status" field provides the status characters for the "Function
, the
null. The "Function Reply Status"
characters are organised in the same order as the corresponding function
identification characters in the "Function Request" field. The following is a list of
the "Function Reply Status" characters with the status they represent:
2 = Information available and provided in the following LR1, LR2, or LR3
sentence,
3 = Information not available from AIS unit,
requested by including their function identification character in this string of
characters. The order
not specifically requested – even if available to the AIS. The IMO Resolution
defines the use of all characters from A to Z, but
characters with the information they request:
A = Ship's: name, call sign, and IMO number
B = Date and time of message composition
C = Position
E = Course over ground
F = Speed over ground
I = Destination and Estimated Time of Arrival (ETA)
O = Draught
W = Persons on board
Request" information. When a long-range interrogation request is originated
"Function Reply Status" field should be
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