UPS Aviation Technologies Apollo SL70R, Installation Manual

Page: 40 / 52

Serial Interface Specification
Apollo SL70R Installation Manual
32
7.3.3
R
EPLY
C
OUNT
The reply count message indicates the number of replies per second that are being sent.
7.3.4
I
NTERFACE
S
PECIFICATION
Output Rate: Approx. 1 sec. when EXT (extended) messages are selected.
Buffer Length 11 bytes
7.3.4.1 R
EPLY
C
OUNT
F
ORMAT
S
PECIFICATION
Table 7-6. Reply Count Message Format
Byte Contents Description
0 ‘^’ ASCII ‘^’ (0x5E)
1 ‘R’ ASCII ‘R’ (0x52)
2 ‘C’ ASCII ‘C’ (0x43)
3 ‘ ‘ ASCII space (0x20)
4-7 dddd ASCII Digit (ex. 1234)
8-9 dd Checksum of bytes 0 through 7. In hex ASCII i.e. “FA”
10 ‘\r’ ASCII carriage return (0x0D)
7.3.4.2 R
EPLY
C
OUNT
F
ORMAT
S
PECIFICATION
E
XAMPLES
^RC 1200D6 1200 replies per second
7.3.5
C
ONFIGURATION
M
ESSAGE
This message provides a way to send configuration information. C1 – contains the soft-
ware version numbers for the microcontroller and FPGA.
7.3.5.1 I
NTERFACE
S
PECIFICATION
Output Rate: Upon Request.
Buffer Length 16 bytes
7.3.5.2 S
OFTWARE
V
ERSION
F
ORMAT
S
PECIFICATION
Table 7-7. Configuration 1 Message Format
Byte Contents Description
0
‘^’ ASCII ‘^’ (0x5E)
1 ‘C’ ASCII ‘C’ (0x43)
2 ‘1’ ASCII ‘1’ (0x31)
3 ‘ ‘ ASCII spaces (0x20)
4-5 dd Micro SW major revision number
6 d Micro SW minor revision number
7 ‘,’ ASCII comma (0x2C)
8 d FPGA major revision number
9 d FPGA minor revision number
10 c Transponder Configuration C= Mode A/C S= Mode S
11-12 xx Reserved for future use fill with spaces (0x20)
13-14 dd Checksum of bytes 0 through 8. In hex ASCII i.e. “FA”
15 ‘\r’ ASCII carriage return (0x0D)