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

2.4

Refresh Settings

Setting procedure
Set the buffer memory area of the D/A converter module to be refreshed automatically.
This refresh setting eliminates the need for reading/writing data by programming.
1.
Start Module parameter.
Navigation window  [Parameter]  [Module Information]  Module name  [Module parameter]  [Refresh settings]
2.
Click "Target" and set the refresh destination.
• When "Target" is "Module Label"
Set whether to enable or disable the auto refresh by setting "Digital value" to Enable or Disable.
• When "Target" is "Refresh Data Register (RD)"
The transfer destinations of all items are automatically set by setting the start device to "Top Device Name".
• When "Target" is "Device"
Double-click the item to be set to enter the numeric value.
3.
Click "Refresh Timing" to set the timing to execute the auto refresh.
Set "Refresh Timing" to "At the Execution Time of END Instruction" or "At the Execution Time of Specified Program".
When "At the Execution Time of Specified Program" is set, double-click "Refresh Group [n] (n: 1-64)" and set a value of 1 to
64.
• When the inter-module synchronization function is used and the refresh target is set to "Specified Device",
the auto refresh destination device must be written into "Inter-module synchronous interrupt function".
• With refresh enabled, the value of the refresh destination takes effect at the timing of refresh which is set up
by the engineering tool. As this happens, the buffer memory is overwritten with the value of the refresh
destination. To change the value of a buffer memory area to be refreshed, change the value of module label
or device at the refresh destination in the program.
2 PARAMETER SETTING
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2.4 Refresh Settings