* Receives messages from CNC control system
* Optional function buttons according to user' requirements
* Displays data transferred by PLC digital I/O (serial out simulation) or serial I/O (RS232C)
* Patent magnetic back cover
* Optional enabling micro switches for application
* Emergency stop button for option
* F type offers 6 key buttons for application extension
* Multiple output types suit for various CNC control system
* Provides reverse polarity protection
* Low-cost total solution with three types of multiple option and combination
