uAvionix Ping200SR, User And Installation Manual

Page: 30 / 31

UAV-1000711-001 Rev E
ECN 7A994 Page
30 | 31
A2.2 Mode Message
The mode message indicates the current operating mode. It includes the
current mode, the Ident status, current squawk code setting and
emergency code.
Rate: 1 sec (nominal)
Message Length: 17 bytes
Byte Contents Description
1
‘^’ ASCII ‘^’ (0x5E)
2
‘M’ ASCII ‘M’ (0x4D)
3
‘D’ ASCII ‘D’ (0x44)
4
‘ ‘
ASCII space (0x20)
5 m See mode field table below
6
‘,’
ASCII comma (0x2C)
7
‘I’
See ident field table below
8
‘,’
ASCII comma (0x2C)
9-12 dddd ASCII squawk code
13 e See emergency field table below
14 h
Health bit in hex ASCII “1”
15-16 dd Checksum of bytes 1 through 14
. In hex ASCII i.e. “FA”
17
‘\r’
ASCII carriage return (0x0D)
Mode Field
m Definition ASCII
O OFF/STBY 0x4F
A ON 0x41
C ALT 0x43
S ALT 0x53
E 1090ES Only 0x45
Ident Field
i Definition ASCII
I Ident Enabled 0x49
- Ident is Inactive 0x2D
Emergency Field
e Definition ASCII
0 None 0x00
1 General 0x01
2 Medical 0x02
3 Fuel 0x03
4 Com 0x04
5 Hijack 0x05
6 Downed 0x06
7 UAS Lost Link 0x07
The health indication is set to ‘1 to indicate that everything is operating
normally.
Example: ^MD A,I,23540120\r
Mode ON, Ident active, Squawk 2354, No Emergency, Healthy