Product description: Revolution Pi RevPi Compact 8GB eMMC - PLC module
RevPi Compact is an open source industrial controller based on Raspberry Pi Compute Module 3+ with 1GB RAM and 8GB eMMC memory. It features a Broadcom BCM2837B0 ARM Cortex-A53 Quad-Core processor clocked at 1.2 GHz. The open platform provides access to the root level, which gives the user the freedom to create their own projects. The RevPi Compact is equipped with 8 digital and analog inputs and 8 digital and two 2 analog outputs, 2 Ethernet interfaces, and a 4-pin screw connector for the RS485 interface. It is enclosed in a DIN rail mounted housing. The module is programmed in the NodeRED environment in Python or C. It can also be controlled in professional PLC and SCADA software.
A large number of integrated I/O interfaces
The RevPi Compact, unlike other RevPi modules, is not modular. All interfaces are built into the board, so there is no need to connect additional modules. It is equipped with many analog and digital inputs and outputs for connecting sensors or other actuators. It has 8 analog ue inputs (from 0 V to 10 V) and 2 analogue outputs (from 0 V to 10 V), as well as 8 digital inputs and outputs. The device is also equipped with RS485 interface. Inputs and outputs are connected to screw terminals located on the top and bottom of the device.
Simultaneous operation in two networks
The device is equipped with two Ethernet interfaces, which allow simultaneous connection to two networks at the same time. For example, sensor data from an OT network can be transferred from the shop to RevPi Compact via Modbus TCP and sent on to the cloud or an IT system using MQTT or OPC UA.
RevPi Connect meets industrial requirements
One of the main goals of the Revolution Pi was to give the Raspberry Pi the ability to become a true compact control system. That's why the RevPi Compact features a DIN rail-mounted enclosure and an industrial 24 V power supply design and complies with EN 61131-2.
- Power supply: 24 V DC (from 10.8 V to 28.8 V)
- Operation temperature: from -20°C to 55°C
- EMC interference emission: according to EN 61000-6-4
- EMC immunity: in accordance with EN 61000-6-2
Raspberry Pi vs Revolution Pi
The Raspberry Pi Foundation has created an inexpensive board for educational purposes with the small size and interfaces found in standard PCs. The Revolution Pi modules were based on the Raspberry Pi Compute Module board, for which Kunbus created an evaluation board, creating a controller with the same specifications as classic PLCs. Revolution Pi was created for industrial applications with the possibility of expanding its capabilities through modules with IO interfaces and communication modules.
|RevPi Compact specification|
|Processor||Broadcom BMC2837B0 Quad-Core ARM Cortex-A53|
|EMMC memory||8 GB|
|Supply voltage||24 V (from 10.8 V to 28.8 V)|
|Max. power consumption||20 W (including 10 W USB)|
|Operating temperature||from -20°C to 55°C|
|Storage temperature||-40°C to 85°C|
|Degree of protection||IP20|
|EMC interference emission||4 kV / 8 kV|
|EMI test||according to EN 61000-6-4|
|EMC immunity||according to EN 61000-6-2|
|Conformity to||CE, RoHS|
|Dimensions||111 x 22.5 x 96 mm|
|2x Ethernet RJ45 10/100 Mb/s|
|4x USB 2.0|
8x digital inputs
Input threshold: at 24 V DC compatible with type I and II sensors according to EN 61131-2.
8x digital outputs
top with 10 kΩ resistor, short-circuit proof, potential separation circuit / digital outputs. Max. load 500 mA / 24 V per output (resistive load). Sum of all outputs max. 2 A / 24 V (resistive load).
8x analog inputs
0 V to 10 V, 16-bit with PiControl, 21-bit primary value, software switchable current source 2.5 mA.
2x analogue outputs
0 V to 10 V, short-circuit proof, reverse current protection, 8-bit resolution, 1% accuracy, max. current load 10 mA (10 V DC at 1kΩ).
|1x RS485 max. 500 kbps, software switchable termination (not galvanically isolated).|