Cyclic Data Assurance - Mitsubishi Electric MELSEC iQ-R Series User Manual

Cyclic data assurance

This function assures the cyclic data assurance in units of 32 bits or station-based units.
: Assured, : Not assured
Method
32-bit data assurance
Station-based block data
assurance
Interlock program
When a remote station is in the network, use station-based block data assurance. If it is disabled, the
functions of the remote station cannot be assured.
32-bit data assurance
RWr, RWw, and LW data can be assured in 32-bit units.
■Data assurance at the time of direct access to link devices
When link refresh target devices are accessed, the 32-bit data can be assured by satisfying the following conditions:
• The start device number of RWr, RWw, and LW is a multiple of 2
• The number of points assigned to RWr, RWw, and LW is a multiple of 2.
CPU module
Device
0H
2 words
(32 bits)
1H
2H
2 words
(32 bits)
3H
4H
2 words
(32 bits)
5H
6H
2 words
(32 bits)
7H
9 FUNCTIONS
158
9.2 Cyclic Transmission
Description
Assures data in 32-bit units.
Data is automatically assured by satisfying
assignment conditions of link devices.
Assures data in station-based units.
Data is assured by enabling the station-based
block data assurance in the parameter setting.
Assures data of more than 32 bits.
Data is assured by configuring interlocks on
programs.
Link refresh
Link refresh



CC-Link IE TSN Plus module
RWr, RWw, LW
2 words
(32 bits)
2 words
(32 bits)
2 words
(32 bits)
2 words
(32 bits)
Direct access to Access to buffer
link devices memory
 
 
 