Mitsubishi MELSEC Q Series User Manual

4
FUNCTIONS
4.4 MELSECNET/H Module Access Function
4.4.2 Link device access
4 - 22
1
OVERVIEW
2
SYSTEM CONFIGURATION
3
SPECIFICATIONS
4
FUNCTIONS
5
SETTING AND PROCEDURES
6
I/O NUMBER ASSIGNMENT
7
MEMORIES AND FILES
8
INSTALLING / UNINSTALLING
(c) Link device refresh
Data in the link devices and internal link device buffers are refreshed according to
the link device refresh cycle and refresh parameters set on the MELSECNET/H
utility.
( Section 4.4.4)
The range set by the refresh parameters of the <<Parameter setting>> tab of the
MELSECNET/H utility and set by the network range assignment is refreshed.
POINT
The link device internal buffer where the link device refresh is not performed is
applicable as the internal memory of the user program.
Figure 4.16 Link device refresh ranges
C Controller module
Range to be
actually
refreshed
Applicable
as internal
memory
Applicable
as internal
memory
Applicable
as internal
memory
Link device
refresh
Link device
refresh
Link device
refresh
MELSECNET/H module
Network range
assignment parameter
(Empty)
Station
No.2
Station
No.3
Station
No.1
(Empty)
Range set by
network range
assignment
Link device
internal buffer
Range set by
refresh
parameters

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English