User's Manual

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MESSAGE FORMATS
RADAR EVENT MESSAGES
Heart Beat Message / ‘HB’
This message is sent each time the heart beat period expires. The heart beat message period is controlled using
the *HBP command. The heart beat period is measured in frames.
Heart Beat Message Format
Notes to Heart Beat Message
The heartbeat period is set in seconds using the *HBP command. Setting the hearbeat period to 0 secs will turn
the hearbeat off. The maximum setting for the heartbeat period is 86400 secs.
Name Size / Bytes Value Notes
STX 1 2 Start of message byte
MT 2 ‘HB’ = Heart Beat Message type
, 1 ‘,’ Comma
Message Time
8
DDDDD.DD Time of message in seconds.
0 to 86400.00 seconds
* 1 ‘*’ Asterisk
Check Sum 2 ‘XX’ Check sum in hexadecimal format
ETX 1 3 End of message byte
MT ,
S
T
X
*
E
T
X
Message
Time
Check
Sum
2 11 1 18 2
Message Type
HB