Keep your COM port assignment between for maximum software compatibility. Always match your software baud rate to 9600 .
Features and Customization
Look for a device labeled "USB Serial Port" or "Unrecognized Device" with a yellow warning triangle. Rohs 721 Cutting Plotter Driver Pc
If you require the specific USB-to-Serial driver provided by the original equipment manufacturer:
Before downloading any software, you need to understand how the RoHS 721 connects to your PC. While the machine features a physical USB port, internally it relies on a . Keep your COM port assignment between for maximum
Right-click the Windows Start Button and select . Scroll down and expand the Ports (COM & LPT) section.
Wait for the confirmation dialog box reading "Driver install success" or "Installation complete." Close the installer. Phase B: Connecting and Verifying the Device Power on your Rohs 721 cutting plotter. If you require the specific USB-to-Serial driver provided
: Ensure the assigned port is COM 1, 2, 3, or 4 . Ports higher than COM 4 often cause communication errors with older cutting software.
Found in slightly older or premium variants.
You should see a listing such as USB-SERIAL CH340 (COM3) or USB Serial Port (COM4) .
If your software requires manual flow properties, open the port properties in Device Manager and match these settings: