My ScienceWorkshop 500 or 750 Interface Won't Connect to Capstone

I am using the CI-6759A USB/Serial Adapter with a 500 interface or 750 interface and Capstone will not connect to it.

 Compatibility Details:

  • The CI-6759 (non-A) model is not compatible with Capstone software. You must replace with the CI-6759A updated model.
  • CI-6759A is compatible with Windows 7 and Windows 10, and Mac OS 10.10 or higher.

PASCO Troubleshooting Steps:

  1. Install the latest version of PASCO Capstone
  2. Turn on the ScienceWorkshop interface.
  3. Connect the CI-6759A adapter to a USB port and wait for Windows to detect device and install drivers.
  4. Run Capstone
  5. Click the Hardware Setup button in on the left tool palette
  6. Click Choose Interface.
  7. Select the type of ScienceWorkshop interface that you have connected to the USB-to-serial adapter.
  8. Click OK.
  9. An image of the interface should appear in the Hardware Setup window with a small green circle to the upper left corner
  10. If you see a yellow exclamation point symbol:
    • Unplug and replug the CI-6759A USB-to-serial adapter from the USB port.
    • If your computer has both USB2 and USB3 ports, connect to a USB2 port. Occasionally USB3 ports are not compatible with the CI-6759A adapter.
    • Toggle power on the ScienceWorkshop interface.
    • Reboot the computer

If the above steps do not resolve the problem, delete the PASCO USB/serial interface from the Device Manager and reboot the computer:

  1. Right click on My Computer.
  2. Select Properties.
  3. Select the Hardware tab.
  4. Click the Device Manager button.
  5. Expand the Pasco Interface Class category.
  6. Click on PASCO USB/Serial Converter.
  7. Press the Delete button.
  8. A "confirm device uninstall" window will appear. Click "OK". Do not select the checkbox "Delete the driver software for this device"
  9. Disconnect the CI-6759A and reboot the computer when prompted.
  10. When the computer is ready, connect the CI-6759A and wait for Windows to recognize the device and install drivers. 

If using a 750 interface, this article only applies to 750 interfaces connecting through the CI-6759A USB/Serial Converter. If your 750 interface has a USB symbol on the front this article does not apply.

Related Products

USB/Serial Converter

Connects ScienceWorkshop 500 and 750 serial interface to a computer via USB.

ScienceWorkshop 750 Interface

PASCO's 750 Interface is the measurement center for the modern physics laboratory.

ScienceWorkshop 500 Interface

The ScienceWorkshop 500 Interface collects data directly to a computer, plus supports remote datalogging.