Furuno FM-8800, Руководство по обслуживанию

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5.4 Block Description
5-24
For this communication to be in use, proper ID number has to be set up for each CPU.
Refer to page 4-4 for this ID setup. ID for DMC IF unit is fixed. Data is composed of ID
transmitting cycle that designates the Receiving station (a Remote Handset) and a data
transmitting cycle that responds to Receiving station. When a multi-processor bit is ''1''
that means ID transmitting cycle and ''0'' means data receiving cycle.
For example, a Transmitting station (the Transceiver unit) transmits a data with ID code
of a Receiving station with multi-processor bit “1” followed by data with
multi-processor bit “1”. When a Receiving station receives a data with multi-processor
bit “1”, it compares it with its own ID to make sure before accepting it.
COMMUNICATION WITH DMC-5
Connection of DMC I/F cannot be performed in the Russian Ver.
A communication between DMC IF and DMC-5 is made possible using MIF command.
A communication between DMC IF and the Transceiver unit uses FM-8800S/D
communication protocol so does a Remote Handset. Therefore, in order to establish a
communication between the Transceiver unit and DMC-5, DMC IF transfers a
command from DMC-5 to FM-8800S/D and the same transfer of command can be done
the other way around as well.
Fig. 5.4.20 DMC-5 Connection Diagram
CPU
(H8S)
FM-8800S, D
DMC-5
CPU
(H8S)
Remote Handset
(HS-8800)
CPU
(H8S) CPU
(V25)
DMC I/F
(IF-8820)
CPU
(H8S)
Remote Handset
(HS-8800)
ID=1 ID=4
DATA A, B
DATA A, B
(MIF Comand)
RXD
TXD