Raspberry Pi PLC RevPi Core series

EthernetRS485USB interface

For projects where features like a second Ethernet interface or an RS-485 port can be omitted, the RevPi Core offers a cost-effective alternative to the RevPi Connect, without sacrificing expansion modules. The current generation of the RevPi Core is equipped with the Raspberry Pi Compute Module 4S. Like the RevPi Connect, the RevPi Core can also be expanded with I/O and gateway modules via the top-mounted PiBridge connector. The difference between the RevPi Core S and RevPi Core SE versions is easy to explain: Both versions are compatible with the I/O expansion modules, but only the RevPi Core S can also be expanded with RevPi Gateways. The power supply circuit is one of the most important parts of the RevPi Core. In order to get as small heat from power dissipation as possible we are using state-of- the-art high-efficiency DC-DC-converter (efficiency over all is greater than 80 %). These converters use 24 VDC input (which is the usual case in industrial applications) to produce all supply voltages needed for the Core. But our Core module does not only run on the standardized supply range of 20.4 V to 28.8 V but also runs on as little as 10.2 V input voltage*. That means you can even use car batteries or solar panels as power supply. At 24 V input any power loss of up to 10 ms will not influence operation of RevPi Core (drawing full current from both USB ports) and even up to 25 ms without USB load. Input voltage and functional earth is connected to RevPi Core using heavy duty connectors at the bottom side.