Icom IC-7700 ■Remote jack (CI-V)information, DData format, DCI-Vconnection example, 14 CONTROL COMMAND

14 CONTROL COMMAND■Remote jack (CI-V) informationDCI-V connection example

IC-7700

9–15 V DC

ct- 17 personal computer

mini-plug cable

The transceiver can be connected through an optional CT-17 CI-V LEVEL CONVERTER to a PC equipped with an RS-232C port. The Icom Communications Interface-V (CI-V) controls the transceiver.

Up to 4 Icom CI-V transceivers or receivers can be connected to a PC equipped with an RS-232C port. See p. 12-17 for setting the CI-V condition using set mode.

DData format

The CI-V system can be operated using the following data formats. Data formats differ according to command numbers. A data area or sub command is added for some commands.

Controller to IC-7700		OK message to controller
q w e r t	y	u

FE		FE	74	E0	Cn	Sc	Data area	FD
					Command number (see the command table)	Sub command number (see command table)	BCD code data for frequency or memory number entry
	Preamble code (fixed)		Transceiver’s default address	Controller’s default address				End of message code (fixed)

FE		FE	E0	74	FB	FD
					NG code OK code (fixed) (fixed)
						End of message code (fixed)
			Controller’s default address	Transceiver’s default address
	Preamble code (fixed)

FE

FE

E0

74

Cn

Sc

Data area

FD

FE

FE

E0

74

FA

FD

q

w

e

r

t

y

u

IC-7700 to controller

NG message to controller

14-2