Revolution Pi Core SE

Slim, low-cost DIN-rail computer based on the Raspberry Pi Compute Module 4S and runs a Debian-based Linux – the modular entry into edge computing and soft PLC.

Collect machine data

Read values from machines and sensors via Modbus TCP, OPC UA or MQTT. Then send them to Cumulocity. You do not need to change the existing machine control.

Monitor energy and utilities

Count pulses from meters with a digital input module. Then show consumption, peaks and alarms in Cumulocity.

Build a small control system

Combine the Core SE with digital, analog and relay modules. For example, you can read machine states, measure temperatures and switch valves. At the same time, your control logic runs locally as a soft PLC.

Service machines remotely

Fetch log files, change settings and install updates from Cumulocity. This saves time-consuming trips to the site.

Technical Data

• Raspberry Pi Compute Module 4S, Broadcom BCM2711, quad-core Arm Cortex-A72 @ 1.5 GHz, passive cooling
• 1 GB LPDDR4 RAM; 8, 16 or 32 GB eMMC flash
• Hardware Interfaces
  • 1 × RJ45, 10/100 Mbit/s
  • 2 × USB-A (max. 900 mA in total)
  • 1 × Micro-USB (only for writing the eMMC image)
  • 1 × Micro-HDMI 2.0a (4K)
  • 2 × PiBridge system bus for RevPi I/O modules (not compatible with RevPi Gateways)
  • 3 bi-color Status LEDs, 2 of them freely programmable
• Power supply 24 V DC (10.8 – 28.8 V DC)

How the Connection to Cumulocity Works

thin-edge.io is a free, open-source software agent. It runs directly on the RevPi and needs only few resources. Every program on the device can hand over data to it. For example, this can be a Python script, a Node-RED flow or a soft PLC.

• Data: send measurements, events and alarms
• Device management: check device health, restart the device and run shell commands
• Software: install, update and remove packages remotely
• Configuration and logs: fetch and change files from Cumulocity
• Child devices: show connected machines or meters as separate devices
• Remote access: open secure SSH or VNC sessions via Cumulocity Cloud Remote Access

Add Inputs and Outputs

The Core SE has no inputs or outputs of its own. Instead, you mount expansion modules right next to it. They plug into the system bus on both sides. All values then appear in one shared process image.

• RevPi DI, RevPi DO and RevPi DIO: digital inputs and outputs for machine states, counters, lamps and valves
• RevPi AIO and RevPi MIO: analog inputs and outputs for sensors such as pressure, level or temperature
• RevPi RO: relay outputs for switching higher loads

Fieldbus networks: The Core SE does not work with RevPi Gateways. Do you need PROFINET, EtherCAT, EtherNet/IP or PROFIBUS? Then choose the RevPi Core S instead.

Note 1: Expansion modules have their own temperature ranges. The module with the smallest range defines the range of the whole system.
Note 2: With 1 GB RAM, the Core SE is designed to run without a desktop. Revolution Pi recommends the Linux GUI only for devices with at least 2 GB RAM.

Available Variants

Item no.	RAM	eMMC	Works with RevPi Gateways
100365	1 GB	8 GB	–
100366	1 GB	16 GB	–
100367	1 GB	32 GB	–

Which Device Fits You?

Choose the RevPi Core SE if you want the lowest-cost base unit and only need I/O modules.

Choose the RevPi Core S if you also want to connect to fieldbus networks via RevPi Gateways.

Choose the RevPi Connect SE if you also need a second Ethernet port, an RS485 interface and a built-in input and relay output.

Getting Started in 5 Steps

1. Pick your variant and the expansion modules you need.
2. Install and power up: Mount the device on a DIN rail. Then connect 24 V DC and Ethernet. Set up attached modules with the PiCtory web tool.
3. Install thin-edge.io:
   curl -fsSL https://thin-edge.io/install.sh | sh -s
4. Connect to your Cumulocity tenant:
   sudo tedge cert create --device-id <your-device-id>
sudo tedge config set c8y.url <your-tenant>.cumulocity.com
sudo tedge cert upload c8y --user <your-user>
sudo tedge connect c8y
   Onboarding options change over time. Always check the current thin-edge.io documentation.
5. Send your first data:
   tedge mqtt pub te/device/main///m/environment '{"temperature": 21.3}'
   Your device and its first value now show up in Cumulocity Device Management.

Step-by-step guide: Revolution Pi tutorial: Cumulocity with thin-edge.io

Resources

• RevPi Core SE in the Revolution Pi shop
• Tutorial: Install thin-edge.io and connect to Cumulocity

Partner: Revolution Pi (by KUNBUS GmbH, Germany)

Device on Partner Website