Using Raspberry Pi in industrial environment - why it requires special attention?
Raspberry Pi minicomputers have a design typical of developer modules - it's hardly surprising, after all, it was Raspberry that set certain standards, copied for almost a decade by subsequent single board computer manufacturers. Apart from classic computer ports (USB, Ethernet, HDMI or audio), B, A and Zero series modules also contain 40-pin goldpin sockets, providing direct access to power supply lines (ground, +3.3 V and +5 V) and input/output ports of the SoC processor. On the one hand, this solution greatly enhances the integration capabilities of the minicomputer into the target system, allowing external circuitry to be connected directly to the processor GPIO lines, but on the other hand, it exposes the Raspberry Pi's delicate chips to damage from accidental electrostatic discharge or an unwanted voltage pulse or a short circuit. In order to adapt Raspberry Pi to work in industrial conditions, it is necessary to protect power supply circuits as well as digital lines and communication ports. While the Raspberry Pi's "computer" ports (e.g. USB) have basic protection, it may not be sufficient for particularly demanding applications. Additional problems include lack of built-in RTC clock or susceptibility to short term power outages.
RevPi - the remedy for Raspberry Pi's industrial woes
Revolution Pi engineers have successfully solved all the problems described above by providing the user with industrial-grade minicomputer modules based on Raspberry Pi Compute Module 3 boards and encapsulated with a number of interface and protection circuits, as well as useful peripheral blocks. There is also an extensive power supply section, providing the ability to supply typical "industrial" voltages from 12 V to 24 V (although in some applications RevPi modules can handle even 10.2 V). An important advantage of the devices manufactured by Revloution Pi company is a strong tool support in the form of Node-RED programming package and logiCAD environment based on the popular Eclipse IDE. RevPi controllers, as befits a "real PLC", are equipped with expansion ports for connecting external modules, and what is more, they meet the stringent requirements of industry standards, including EN 61131-2, EN 61131-2 and IEC 61000-6-2 (in terms of ESD protection, surge testing and electromagnetic compatibility), and also have the UL certification required in the USA.
Offer of RevPi modules in Botland store
In our offer you will find both main modules and expansion modules manufactured by Revolution Pi brand. Apart from the basic RevPi Core 3 PLC with 4GB of eMMC memory, we also offer a newer, more powerful RevPi Core 3+ version with 8, 16, or even 32GB of eMMC memory. We also have RevPi Connect and Connect+ controllers with 4, 8, 16, or 32 GB eMMC, each with two Ethernet ports and designed for applications with an emphasis on network communications. Among the expansion modules available in Botland you will find such devices as RevPi Con CAN (CAN bus transmitter/receiver), RevPi AIO (equipped with 28 IO pins, 4 universal analog inputs, 2 DAC outputs and 2 measurement channels for RTD thermoresistors) or RevPi DIO (digital input and output module).