Raspberry Pi for the Control Cabinet

STV Electronic introduces the Smart Manager 4.0, a Raspberry Pi 3 B+ based DIN rail PC

With the Smart Manager 4.0, STV Electronic introduces a Raspberry Pi 3 B+ based DIN rail PC for control cabinets that makes it easy for users to implement complex control engineering and building automation tasks with open source based hardware and software. The performance of this DIN rail PC is scalable on demand, using standardized SODIMM processor modules. This also allows future performance upgrades and ensures extended long-term system availability. Thanks to its low installation height of 62.2 mm, compact width of 6TE (108 mm) and interfaces at the top and bottom, this Raspberry Pi computer fits into any control cabinet – including small flush-mounted distribution boxes in building automation, for which DIN 43880 allows maximum installation depths of up to 70 mm.

“With our application-ready Smart Manager 4.0, OEMs and system integrators benefit from an industry-grade Raspberry Pi DIN rail PC with a highly tailored Linux OS, for which we also offer comprehensive software and integration support, continuously updated security patches and long-term availability of at least 10 years. This makes our industry-compatible open source solutions extremely attractive for many building automation and industrial control tasks,” explains Markus Hühn, Managing Director of STV Electronic.

STV Electronic has already found first users for the new Raspberry Pi DIN rail PC in the energy management sector, for which the company also offers a wide range of M-Bus level converters. Further applications can be found in connection with many other I/O and fieldbus based solutions in industrial control cabinets, for which a Raspberry Pi system offers the ideal open source based edge logic. The growing demand for Industry 4.0 and IIoT connectivity and edge logic, in particular, is driving the trend away from proprietary controllers towards open Linux platforms such as Raspberry Pi.

In the Debian Embedded Linux development environment of the Smart Manager 4.0 DIN rail PC, users have a free choice between real-time programming environments like CoDeSys, IoT development tools like NodeRed, web server technologies like Node.js, or even ‘classic’ C and C++ code, and many other solutions from the huge Raspberry Pi community. Building and home automation solutions such as FHEM or openHAB as well as Mosquitto for MQTT based real-time communication are also supported.

In the currently available multithreaded quad-core design, the Raspberry Pi based DIN rail PC is equipped with a 1.2 GHz Broadcom® BCM2837B0 processor and 1 GB LPDDR2 SDRAM. For the on-board flash memory, users can choose between 8, 16 or 32 GB eMMC. For even larger memory requirements, there is an SD slot version. In terms of communication interfaces, the new Smart Manager 4.0 from STV Electronic offers up to 2x Ethernet, 6x USB 2.0 and 2 galvanic isolated specifiable serial RS485 interfaces, one of which can also be designed as RS232. In addition, it provides an extension bus, which can be used to connect fieldbus extensions such as M-Bus, Modbus or LonWorks, as well as other external I/Os. 1x HDMI is also supported for local visualization functions. With a voltage input from 12 V to 30 V, a temperature range from -40 °C to +55 °C, and at least 24 hours battery-buffered real-time clock, the DIN rail PC can be integrated into a wide variety of application scenarios.

The new Raspberry Pi based Smart Manager 4.0 from STV Electronic is available now. Housings with customer-specific labeling, embedded variants and individual I/O versions are available on request. STV Electronic also supports OEM customers, system integrators and large end users in the design of specific control logic if required. Further information and data sheets for the new Smart Manager 4.0 Raspberry Pi based DIN rail PC from STV Electronic can be found at the product overview

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