I-7066D is intelligently designed to provide signal conditioning system monitoring and safe value settings. I-7066D is a cost-effective solution for a wide range of valuable industrial control signals and systems. The DCON utility can help users to configure and test I-7066D Digital Output and Isolated Digital Input module. Plenty of library functions and demo programs are provided to let users develop programs easily under Windows, Linux and DOS operating systems. The communication interface is modbus protocol via RS-485. Users may mount the modules on a DIN rail, panel or wall. Modules have a screw-terminal block to connect to the signals.