I have a project reading an RS-232 communication string in LabVIEW on Com1 using a duplex spy cable between a PC and a microscope under control (RTS/CTS). When the microscope receives a command from the PC to move the stage it sends back a serial port ASCII string ending in "CR/0D" about every 15 seconds which I intercept in my spy cable LabVIEW serial read program. I need to capture these "CR" events of byte strings greater than 14 to trigger a Boolean True to eventually activate another VI. For now I use a front panel TRUE indicator. The PC RS-232 communication is easily read in TERMITE