Refresh Setting - Mitsubishi Electric MELSEC iQ-R Series User Manual

2.3

Refresh Setting

Setting method
Configure the refresh settings of the RJ71CN91 buffer memory.
Configuring the refresh settings eliminates the necessity of read and write processes by the program.
1.
Open the module parameter window.
[Navigation window]  [Parameter]  [Module Information]  [RJ71CN91]  [Module Parameter]  [Refresh Setting]
2.
Click "Target" and set the refresh target.
• When "Target" is set to "Module Label"
Enable or disable "0-63word" to enable or disable the refresh.
• When "Target" is set to "Refresh Data Register (RD)"
To automatically set the transfer destinations of all items, set "Start Device Name" to the start device.
• When "Target" is set to "Device"
Double-click a relevant item and enter the refresh target device.
3.
Click "Refresh Timing" and set the refresh timing.
Set "Refresh Timing" to "At the Execution Time of END Instruction" or "At the Execution Time of Specified Program".
When it is set to "At the Execution Time of Specified Program", double-click "Refresh Group [n](n: 1-64)" and set 1 to 64.
When the refresh is enabled, the values in the refresh target will be enabled at the refresh timing set by the
engineering tool. At this time, the buffer memory is overwritten with the values in the refresh target. To change
the refreshed values in the buffer memory, change the values in the refresh target module label or device via
the program.
2 PARAMETER SETTINGS
2.3 Refresh Setting
2
75