Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 33)

Publication 1758-UM002D-EN-P - October 2010
DataSite Configuration Settings Utility (DS Settings) 33
The message "Unable to upload from controller" appears.
This indicates that the COM2 baud rate of the controller has been
changed to 19200.
5. Click Exit to close the Controller Communication Settings dialog box.
6. Open the PC Communication Settings dialog box.
7. Change the baud rate of the serial port on the PC to 19200.
8. Click OK.
The PC Communication Settings dialog box is closed.
9. Open the Controller Communication Settings dialog box again.