Chapter 1 Overview - Mitsubishi Electric MELSEC L Series User Manual

CHAPTER 1
The head module can connect MELSEC-L series I/O modules and intelligent function modules on CC-Link IE Field
Network.
The head module can be used as an intelligent device station on the CC-Link IE Field Network system.
For CC-Link IE Field Network, refer to the following.
User's manual for the master/local module used
(1) Cyclic transmission
The I/O signals of the module connected to the head module can operate as those of the master station by
performing cyclic transmission. (
For example, when the output (Y) of the master station turns on, the output (Y) of the module connected to the
head module turns on.
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OVERVIEW
Master station
CPU module Master
station
RX
X
Y RY
RWw
W
RWr
Y
search engine
Page 65, CHAPTER 8)
Head module
(Intelligent device station)
Head module Input module
RX X
RY
RWw
RWr

CHAPTER 1 OVERVIEW

Output Intelligent
module function module
X
Y Y
Buffer
memory
1
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