Chapter 1 Head Module - Mitsubishi Electric MELSEC-L SSCNETIII/H User Manual

CHAPTER 1
The head module can connect MELSEC-L series I/O modules and intelligent function modules on SSCNET III/H.
The head module makes it possible to integrate systems into a single system as remote I/O modules and intelligent
function modules for a different system network can be configured. This leads to wire-saving and space-saving of the
system.
(1) Cyclic transmission
The I/O signals of a module connected to the head module can operate as those of the Motion controller. (
Page 65, CHAPTER 8)
For example, when the output (Y) of the Motion controller is turned on, the output (Y) of a module connected to
the head module turns on.
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HEAD MODULE
Motion controller
Head module
Motion
controller
RX RX
RY
RY
RWw RWw
RWr
RWr
Head module
Input module Output module Intelligent
function module
X X
Y
Y
Buffer
memory