RevPi Compact - Open Source PLC based on Raspberry Pi

The RevPi Compact is our first Revolution Pi device, that isn´t modular but has all the I/O interfaces integrated into the device. To connect sensors and
actuators, the RevPi Compact is equipped with eight digital and analog inputs each as well as eight digital and two analog outputs. In addition,
the device has also a 4-pole RS485 interface with screw terminals. Two Ethernet interfaces (each with a separate MAC address) enable the
device to be integrated in two different networks at the same time.

A customized Raspbian with Real-Time Patch is used as operating system. The open platform concept (including full root rights) allows the user
maximum design freedom in the implementation of his projects. Individual
applications can be programmed via, amongst other things, Node-RED, Python or directly in C. The popular industrial protocols Modbus RTU and Modbus TCP are supported by default. Those who do not want to
program by themselves can optionally use professional soft PLC and SCADA software for control and visualization (paid software licenses required).