Product manual

100-M0131X1A 02/10/10 26 of 31
www.cobham.com/gms
ASCII Value
STX 02h Start byte
0-9 30h-39h 4 byte unit address. In range 0-9999
R 20h-7Eh
1 byte command type. r read, w write or m misc
I 20h-7E 1 byte indicator of internal data block
ABC 20h-7Eh Command –three byte mnemonic
; 3Bh Separator
PQR 20h-7Eh Data –Optional, variable length
; 3Bh Separator
X 20h-7Eh Sum Check
ETX 03h End byte
Table 11 – Packet Structure Sending (from PC)
ASCII Value
STX 02h Start byte
0-9 30h-39h 4 byte unit address. In range 0-9999
Z 20h-7Eh Status Byte
PQR 20h-7E Data –Optional, variable length
; 20h-7Eh Separator
X 3Bh Sum Check
ETX 20h-7Eh End byte
Table 12 – Packet Structure Reply (from controlled device)
4.3 Command List
Description R/W Block
Command Data Sent Data Type
Input
Frequency
R/W 1 ipf
Frequency received by the antenna.
Decimal point allowed
Double
BDC LO
R/W 1 dco
Decimal point allowed
Double
BDC LO Side
R/W 1 los
0=Low
1=High
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