I'm try to get force and torque from FT300, but failed. I download the visual demo from https://robotiq.com/support, but it didn't work, no data curve. I tried the python script from https://dof.robotiq.com/discussion/2379/read-ft300s-data-stream-at-100hz-with-python, but only get an error:minimalmodbus.InvalidResponseError: Checksum error in rtu mode: 'J\x0b' instead of 'ZÝ' . The response is: '\x8eÿ\n\t \x98Jbè\x0eÿJ\t@\x0eJ\x0b' (plain response: '\x8eÿ\n\t \x98Jbè\x0eÿJ\t@\x0eJ\x0b'). How can I get the true data from FT300? Any help much appreciated.