Prodigy ZRX16/ZRX32/ZRX64 is an Input/Output module that supports Modbus RTU over USB and RS485 and Modbus TCP over Ethernet. This product has 16/32/64 Relays (Dry Contacts) and 8 Additional IOs that supports Digital Input, Digital Output and 6 Analog Input functions. The RS485/USB/Ethernet host interface makes connecting this device to any Windows, Linux, Mac machines or embedded computers such as RPi an easy task. Meanwhile, support for industry standard Modbus protocol makes it easy to use this device with almost any automation software that supports Modbus – RTU/TCP. ZRX16/ZRX32/ZRX64 when RTU model connected to a host computer, is enumerated as a regular serial port. This alleviates the difficulty of working with USB protocol and offers a transparent interface to access the device. ZRX16/ZRX32/ZRX64 acts as a Modbus slave device at slave address 1. Flexible DIN Rail mounting system allows easy installation and removal with screws. ZRX16/ZRX32/ZRX64 supports several features such as Relay Timer, Safety Timer (Watchdog), Programmable Power On State etc..