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

2.4

Refresh Settings

Set the buffer memory of the RJ71DN91 to refresh.
This refresh setting eliminates the need for reading and writing with a program.
1.
Start the module parameter.
[Navigation window]  [Parameter]  [Module Information]  [RJ71DN91]  [Refresh Setting]
2.
Click "Target", and set the refresh target.
• When "Target" is "Module Label"
When the validity of "Master function transmit data" is set, the validity of the refresh is also set.
• When "Target" is "Refresh Data Register (RD)"
Set the start device in "Start Device Name", then the transfer destination of all items is automatically set.
• When "Target" is "Device"
Double-click the item to set, and input the refresh target device.
3.
Click "Refresh Timing", and set the timing of 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 1 to 64.
When the refresh is enabled, the value of the refresh target becomes valid at the refresh time set in the
engineering tool. In this case, the buffer memory is overwritten with the value of the refresh target. When
changing the value of the buffer memory targeted to refresh, create the program so that the module label and
device value of the refresh target change.
Precautions
When the refresh target for "Master function transmit data", "Master function receive data", "Slave function transmit data", or
"Slave function receive data" is set, use the following CPU modules. Failure to do so, the parameter error (error code: 2200H)
occurs.
• The RnCPU with firmware version "28" or later
• The RnENCPU with firmware version "17" or later
2 PARAMETER SETTINGS
2.4 Refresh Settings
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