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The run app button will be able to run the app, and terminate button will be able to stop the app. However, currently after clicking run app and terminate once, if the user tries to run the app again by clicking run app, they will receive a socket error.

The only known way to fix this at the moment is to restart the dobot by turning the controller unit off/on.

There is no known coding fix for this as of 23/2/2022

When in the Dobot MG400 Control tab on the Node-RED Interface, clicking on the Run App Button then the Terminate button may cause a socket error with the Dobot Controller. Socket errors will cause the Node-Red Interface to be disconnected from the MG400 controller.

This issue often occurs when clicking the Run App button for the second time after Terminating the application.
The current solution to this problem is to restart the MG400 by turning the controller off and on again.

There is currently no coding fix for this issue as of 19/2/2022.

Because when saving a CSV file, node red will append a new row with "end". This causes a problem where your data will not look right if you save multiple times within a session.

The workaround is the only save data at the end. If you need to modify it, close the export/import data menu. Enter the filename into the import data text field and then open the file, then perform more editing there.

The solution is to change the way python reads the file data from using a while loop to using a for loop to receive the data. This way there won't be a need for the "end" row and thus it can be removed from node-red. This change has not been implemented as of 23/02/2022

The Import and Export Data section for the MG400 has yet to be implemented into the Coordinates and Labels tab of the Node-RED interface. Currently, the Export Data section will only allow the user to store the coordinates from the form into a table. The Save File button for both the Import and Export Data has yet to be implemented.

For future development of the Import and Export data Sections, check the CR5 Import and Export data flows and documentation. The integration should be very similar except that four Joint Angles will be used instead of six.