Installation and Operation
Targets Status Protocol - IF3 Interface
DV16401.03 Issue 04 May 2021 BD406/PBD406 73
2.10 Targets Status Protocol - IF3 Interface
This subchapter describes the broadcasting protocol of the IF3 interface of the BD406 device.
• The protocol is used for reporting status information about all targets stored in BD406
device.
• It uses unidirectional broadcasting transmission compliant with RS232.
• Only outgoing transmission from the BD406 IF3 interface is available (BD406 is a
transmitter).
• It is recommended that the device which receives these packets (receiver) meets
requirements from "Recommended Receiver Operation" page 80.
Term Definition
Maximal number of the supported beacons / NavPoints, equal to 49.
Angular difference between True Bearing and Device True Course Over
Ground (result is always positive number in 0…360 degrees).
Information transmitted from one device to another one.
Complete block of information (from protocol point of view).
Byte which specifies the type of data the incorporated in the frame and the
frame type.
Identifier of the data incorporated in the frame.
Length of frame, in bytes.
Permits distinguishing of the QUERY / VALUE frames.
Means that data are unknown or unreliable.
Number of messages received from single beacon (unique for each
15HexID).
Block of bytes for transmission single frame.
Checksum which protects packet integrity.
First byte of the Packet.
Constant length, constant duration sequence of bits transmitted by
physical layer.
This is minimal portion of the information transmitted by physical layer.
Single physical frame can carry 8 bits of data (1 byte).
Unique identifier of the protocol.
Device which receives data.
First bit of physical frame.
Last bit of physical frame.
Device which transmits data.
Means that data are reliable.
Table 1: Target Status Protocol - Term Definition
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