Link Refresh Function; Link Refresh Cycle Setting - Mitsubishi Electric MELSEC Q Series User Manual

11.7.2

Link refresh function

This function performs refreshing automatically between the devices of the C Controller module (B and W) and the link
device of the network module.
For details of link refresh, refer to the following.
 Page 212, Section 13.2.1
11.7.3

Link refresh cycle setting

The refresh cycle is the execution cycle for the data refresh function and link refresh function.
C Controller
module processing
Link
refresh
Link scan
(1) Setting method
For this setting, use the following functions in Setting/monitoring tools for the C Controller module. (Setting range
10 to 2000 ms)
•
Project view  "Parameter"  "CCPU Parameter"  <<System settings>>
 "Refresh setting"
(2) Calculation method
For refresh cycle, set valid values in terms of the following formula.
• Refresh cycle (L) > Total refresh time = Link refresh time + Data refresh time
For link refresh time, refer to the following.
 Page 244, Section 13.5.1
For data refresh time, refer to the following.
 Page 171, Section 11.7.1
Refresh cycle Refresh cycle
Link
refresh
CHAPTER 11 BASIC FUNCTIONS
Q24DHC-V Q24DHC-VG Q24DHC-LS
Q24DHC-V Q24DHC-VG Q24DHC-LS
Refresh cycle
Link Link
refresh refresh
Q26DHC-LS Q12DC-V
Q26DHC-LS Q12DC-V
Data refresh time
Link refresh time
175
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