42 Error Window (No restored file) This pop-up appears when restored files do not exist in a USB memory or NA has failed to access a USB memory. 1 User I/F Specification No Part Description 1 Button Closes this window. Layout Property Default Description Position Fixed (Left, Up) Size Fixed (Width, Height) Error Window (Unsupport ed unit) This pop-up appears if the connected unit is not supported by the safety CPU. 1 User I/F Specification No Part Description 1 Button Closes this window. Layout Property Default Description Position Fixed (Left, Up) Size Fixed (Width, Height)