When I in Port find "dev/ttys0" and "dev/ttys1", When I choose "/dev/ttyS0", In "point locator test" test and display "There was a problem testing the locator. (com.serotonin.io.serial.SerialPortException: Port In Use: /dev/ttyS0)" ,when I choose "/dev/ttyS1", In "point locator test" test and display “Main equipment malfunction:1”,
Any suggestion?
BR