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Network Instructions
Section 3-25
Note Host Link communications can be sent through the network. In this case, the
FINS command travels through the network normally. When the command
reaches the Host Link system, the necessary Host Link header and terminator
are attached to the FINS command and the command is sent to the host com-
puter.
Communications from a Host Computer (Host Link)
It is possible to send FINS commands from a host computer to the PLC to
which it is connected as well as other devices in the network (CPU Units, Spe-
cial I/O Units, computers, etc.). In this case, the necessary Host Link header
and terminator must be attached to the FINS command when it is sent.
Host computer connected to
the CPU Unit's built-in port
Host computer connected to a
Serial Communications Board
Host computer connected to a
Serial Port Unit
Host computer
Host Link
CPU Unit
To port
Host Link header
FINS
command
Host Link FCS
and terminator
Host computer
Host Link
To port
Host computer
Host Link
To port
Serial Communications
Unit
Serial Communications
Board
(CS Series only)
FINS command
Host Link
Host computer
Host Link header
Host Link FCS
and terminator
FINS
command
Host computer
Host Link
Host Link header
FINS
command
Host Link FCS
and terminator
FINS command
Summary of Contents for CJ1G-CPUxx
Page 3: ...iv N o t i c e ...
Page 5: ...vi ...
Page 21: ...xxii Conformance to EC Directives 6 ...
Page 35: ......
Page 1131: ...1110 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...