Icom IC-R8600 Reference Manual page 9

I/Q SIGNAL
■ Control commands
D Command format (Continued)
Reading command format:
Send a request command from the PC to request to return an IC-R8600 setting value.
A reading command is composed of only a command number.
The IC-R8600 will return the requested setting value as an acknowledgement when receiving the command.
If the request command is invalid, "NG (FA)" will be returned as the acknowledgement.
• Command (PC to IC-R8600)
q w
IC-R8600
Preamble
address
F E F E 9
1 byte
• Acknowledgement to a valid command (IC-R8600 to PC)
q e
PC
Preamble
address
F E F E E
1 byte
• Acknowledgement to an invalid command (IC-R8600 to PC)
q e
PC
Preamble
address
F E F E E
PC to IC-R8600
q w e
FE FE 96 E0 Cn
FE FE E0 96 Cn
q e w
IC-R8600 to PC
NOTE: When the data length is an odd number
Every command's total length in byte must be an even number.
If the total length is an odd number, you need to add an extra "FF" at the end of the packet, to make the length an
even number. In the same manner, the length of the acknowledgement data from the IC-R8600 is an even number.
e r t
PC
Command
command
address
6 E 0 × ×
w r t
IC-R8600
Command
address command
0 9 6 × ×
w u i
IC-R8600 NG
Postamble
address code
0 9 6 F A
r t y
Sc Data area
Sc Data area
r t y
i o
Sub
Postamble
Padding
× × F D F
(Variable)
y
Sub
Data area
× ×
(Variable)
F D
i o
FD FF
FD FF
i o
8
F
i
Postamble
............ F
(Variable)
OK message to PC
q e w
FE FE E0 96
FE FE E0 96
q e w
NG message to PC
o
Padding
D F F
u i
FB FD
FA FD
u i