Mitsubishi Electric MELSEC iQ-R Series User Manual page 116

Refresh Setting
Set the buffer memory of the CC-Link IE TSN Plus module to be refreshed.
This refresh setting eliminates the need for reading and writing by the program.
■Setting method
1.
Start the module parameter.
[Navigation window]  [Parameter]  [Module Information]  Target module  [Port2 Module Parameter (EtherNet/IP)]
 [Basic Settings]  [Refresh Setting]
2.
Click "Target" and set the refresh destination.
• When" Target" is "Device"
Double-click the item to be set and enter the target device.
• When "Target" is "Do not Use Auto-refersh"
All auto refreshes are disabled.
The CPU module devices to be set in the refresh settings should not overlap with the devices used in the
following.
• Refresh settings for modules other than the CC-Link IE TSN Plus module
• Refresh settings between multiple CPUs for CPU modules
• I/O numbers used for I/O modules and intelligent function modules
• The number of device points to be set in the refresh settings should match the communication size set in
"EtherNet/IP Configuration". Otherwise, unintended areas may be read or written.
• When the refresh is enabled, the refresh target values will be valid at the timing set in the engineering tool.
At that time, buffer memory areas are overwritten with the refresh target values. To change the refresh
target values in the buffer memory areas, create a program that changes the values in the refresh target
module labels and devices.
■Refresh processing time
The refresh processing time [s] is an element that configures the scan time of the CPU module. For the scan time, refer to
the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
The following shows the formula to calculate the refresh processing time [s] with the refresh settings enabled.
• Refresh processing time [s] = Refresh read (refresh transferred to the CPU module) time + Refresh write (refresh
transferred to an intelligent function module) time
Calculate the refresh read time and refresh write time from the number of items where the refresh settings have been set and
the number of transfers (words). For the calculation method, refer to the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
8 PARAMETER SETTINGS
114
8.2 EtherNet/IP Parameter Settings