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How to Update Robot Config Files


Updating the robot controller configuration files is crucial to ensure that the robot behaves as expected with the new ForgeOS version.

Getting Config Files

Open the Device Configuration app.

Select your configured robot and tap Edit.

Insert a FAT32 USB drive with at least 2GB of available storage into the IPC.

Tap ​Start Transfer​.

Wait for the transfer to finish​, then remove the USB drive.

Deleting the Existing Project

In your Windows (C:) drive, open the EpsonRC70 folder that was made when you installed the EPSON RC+ software.

In that EpsonRC70 folder, open the projects folder.

In that projects folder, select and delete the existing READY driver files that you imported when last setting up ForgeOS.

Connecting the Computer to the Controller

Plug the USB Cable into the robot controller's PC port. Plug the other end into a Windows PC with EPSON RC+ installed.

Open EPSON RC+ in Program Mode.

  • If you see the pop-up above, click Change To Program Mode before the 5 second countdown expires.

  • If the default boot mode is set to Program Mode, wait for the 5 second countdown to expire.

If you set a password, enter it. Then click OK.

If you see a pop-up about monitoring controller operation before Program Mode boots, click Yes. If you see it after Program Mode boots, click No.

If you see a pop-up about starting another session, click Yes.

If you see a pop-up about current tasks running, select Stop all tasks.

In the top menu, select a Connection type of USB.


The USB option is only available when:

  • You are using the full version of RC+.
  • Your USB cable is connected to the robot controller and Windows PC.

Transferring Config Files

Insert the USB flash drive (that has the configuration files from the IPC) into the Windows PC.

In File Explorer, go to your USB flash drive's storage. Open the forge-os folder.

In that forge-os folder, right-click the ready-epson-driver folder to copy it.

In your Windows (C:) drive, open the EpsonRC70 folder that was made when you installed the EPSON RC+ software.

In that EpsonRC70 folder, open the projects folder.

In that projects folder, right-click to paste the ready-epson-driver folder that you copied.

In the menu bar across the top of EPSON RC+, open the Project tab. Click Import.

Set the import location as PC. Then click Next.

Select a project type of EPSON RC+ 7.x. Select the copied "ready-epson-driver" project. Then click Next.

Type "EPSON_DRIVER" in the Destination Project Name field. Then click Next.

Select the Open Destination Project After Import checkbox. Then click Import.

Building the Project

It's time to build the driver. This step sends the program files to the robot.

In the top menu bar, open the Project dropdown. Click Build.

If you see the prompt below, select Yes to overwrite the project on the controller.

Check that you have a successful build by looking for a "Build complete, no errors" message in the Status window.


If you see build errors, try these tips:

  • Open the Project tab. Click Properties. In the Compiler menu, expand the Compiler Version dropdown. Select 7.5.2.x (or later). Click Apply, then Close out of the pop-up. Then Re-build the project.
  • Look up the error in EPSON's documentation and follow EPSON's recovery instructions.

In the top menu bar, open the Run dropdown. Click Run Window.

To start the driver in Remote I/O mode, click Enable Remote I/O.

In the pop-up below, click Yes to start BGMain.

Closing RC+

You can now control the robot arm with just the READY pendant. Follow these steps to disconnect your PC from RC+.

Unplug the USB cable from your Windows PC and robot controller. A "Communication disconnection detected" pop-up appears in RC+.

Check the READY pendant for errors, such as the "Communication Disconnection Between RC+ and Controller" error.

Follow these steps to clear robot errors:

  • Tap the DEVICE STATUS button on the Taskbar to expand the Device Status Panel. The robot is listed with two buttons: MORE and RESET.

  • Tap RESET to try to recover from the errors. If you can't RESET an error, tap MORE to get more details and instructions.