RevPi Core S/SE
Product Description
The RevPi Core S or RevPi Core SE is a robust 24 V industrial PC for IIoT and automation projects based on the Raspberry Pi Compute Module 4S. The RevPi is a basic module from the Revolution Pi family. All devices in the Revolution Pi family are developed in accordance with EN 61131-2.
Components
Note: RevPi Core S and RevPi Core SE have the same structure.
| Position | Component | Application |
|---|---|---|
| 1 | 3 × status LED | LEDs |
| 2 | RJ45 Ethernet | Ethernet Interface, Establishing a Network Connection |
| 3 | Micro USB | Saving and Reinstalling the Image |
| 4 | 2× USB A | USB Interfaces |
| 5 | X4 connector | Connecting the Power Supply |
| 6 | 2 × locking clip | Mounting the Device on a DIN Rail |
| 7 | Ventilation Slots | Mounting the Device on a DIN Rail |
| 8 | 2 × PiBridge | Connecting Expansion Modules |
| 9 | Micro HDMI | Set up Desktop Mode |
Compatible RevPi Image
- RevPi Bookworm Image
- RevPi Bullseye Image
- RevPi Buster Image
See: RevPi Images.
Variants
| Item No.: | RAM | eMMC | Compatible with RevPi gateways |
|---|---|---|---|
| 100359 | 1 GB | 8 GB | Yes |
| 100360 | 1 GB | 16 GB | Yes |
| 100361 | 1 GB | 32 GB | Yes |
| 100365 | 1 GB | 8 GB | No |
| 100366 | 1 GB | 16 GB | No |
| 100367 | 1 GB | 32 GB | No |
For available variants see Revolution Pi Shop.
Extension Modules
The RevPi Core S or RevPi Core SE base module can be expanded by up to 10 expansion modules to create a Revolution Pi system:
| Left side | base module | Right side |
|---|---|---|
| 5 × RevPi I/O module, of which 1 × RevPi Gateway | RevPi Core S | 5 × RevPi I/O module, of which 1 × RevPi Gateway |
| 5 × RevPi I/O module | RevPi Core SE | 5 × RevPi I/O module |
Compatible I/O Modules
- RevPi DIO - Digital I/O expansion module
- RevPi DI - Digital input expansion module
- RevPi DO - Digital output expansion module
- RevPi AIO - Analog I/O expansion module
- RevPi MIO - Analog & digital I/O expansion module
- RevPi RO - Relay output expansion module
Compatible Gateways
RevPi Gateways may only be included via a PiBridge connector the far right or far left of the system. The RevPi gateways are not supported by the SE variants of the Revolution Pi family.
- RevPi Gate PROFINET
- RevPi Gate EtherNet/IP
- RevPi Gate EtherCAT
- RevPi Gate PROFIBUS
See RevPi Gateways
Virtual Devices
The Virtual Devices are delivered with the RevPi image as components in PiCtory included:
Scope of Delivery
The scope of delivery includes
- RevPi Core S / RevPi Core SE (base module)
- X4 connector
- 2 × cover plug for PiBridge
- Supplement
Mounting and Connecting
The RevPi was developed for use in a control cabinet. Observe the specifications for the Intended Use and all Safety Instructions. Intended UseSafety Instructions
Danger to life due to electric shock
There is a risk of fatal electric shock when working on devices in the switch cabinet with 230 V mains voltage.
▷ Work in the switch cabinet may only be carried out by qualified electricians.
▷ Before carrying out any work in the switch cabinet, switch off the power supply properly.
Carry out the mounting and connection in the following order:
-
Mount the RevPi base module and all expansion modules on a DIN rail.
-
Connect the expansion module via the PiBridge connector.
-
If necessary, connect the RevPi Con modules via ConBridge connectors.
-
Connect all other devices such as sensors and actuators. The interfaces available to you for this can be found in the Structuresection.
-
Connect a monitor and a keyboard if you want to operate the RevPi in Desktop Mode. This is not necessary if you access the RevPi via a network connection.
-
As the last step connect the power supply.
The RevPi Gateways are not supported by the RevPi SE variants.
Access to the Device
The RevPi is accessed in two steps:
Install all available Updates as soon as the RevPi is connected to the internet, so that the system is always up to date with security-relevant features.
Alternatively, access is possible without a network, see Desktop Mode.
See also:
Configuration
Basic Configuration
From the RevPi Bookworm image (10/2024) onwards, the basic configuration of the RevPi devices is carried out via the Cockpit web application.
Until the RevPi Bullseye Image (04/2024), the basic configuration of the RevPi devices is carried out via the RevPi Status web application.
System Configuration
The Revolution Pi system, i.e. a RevPi base module with expansion modules, is configured via the PiCtory web application.
Configuring the Base Module in PiCtory
▷ Start PiCtory.
▷ Select the RevPi base module from the Device Catalog and drag and drop it onto the empty slot with position number 0.
❯ The configurable values appear in the Value Editor.
▷ Save the configuration as the start configuration with File > Safe as Start-Config.
❯❯ The start configuration is called up directly after each boot process.
| Value | Function |
|---|---|
| INP RevPiStatus | Status of the piControl driver |
| INP RevPiIOCycle | Cycle time of piBridge communication between base module and expansion modules in ms |
| INP RS485ErrorCnt | Error counter for piBridge communication |
| INP Core_Temperature | CPU temperature |
| INP Core_Frequency | CPU frequency |
| OUT RevPiLED | Status byte for LEDs |
| OUT RS485ErrorLimit1 | First limit value for error counter > Message in kern.log |
| OUT RS485ErrorLimit2 | Second limit value for error counter > piBridge communication is stopped |
Ethernet Interface
The RevPi has a 10/100 Ethernet connection (RJ45). This allows the RevPi to be connected to a network.
The MAC address is printed on the front of the housing.
Under Linux, the interface can be addressed with :
eth0
USB Interfaces
The RevPi has two USB-A Interfaces. This allows USB 2.0 client devices such as USB hard disks, surf sticks, keyboards or mice to be connected. Each socket may be loaded with a maximum of 500 mA. If more than two USB-A ports are required, a USB hub can be connected.
LEDs
LED PWR
The PWR (Power) LED indicates the device status.
| Signal | Function |
|---|---|
| Green | Power supply is connected. |
| Red | There is a communication fault between connected modules. |
LED A1 and A2
LEDs A1 and A2 are customizable.
The LEDs can be used for user-specific requirements such as indicating a network connection, indicating that a memory limit has been exceeded, monitoring a process and indicating faults.
The LEDs can be switched in the command line application piTest with the variable RevPiLED.
The RevPiLED output has a defined byte length and therefore has a certain number of bits that are read from right to left. Certain bit positions are each assigned to an LED. The LED is switched by setting the respective bits to 0 or 1.
| LED | Assigned bit position |
|---|---|
| A1 | 0 and 1 |
| A2 | 2 and 3 |
An LED signal is set in the command line with the command piTest -w RevPiLED,x where x corresponds to the decimal value calculated from the respective bit pattern.
| LED | Signal | Bit pattern | Decimal value |
|---|---|---|---|
| A1 – A2 | off | 0000 | 0 |
| A1 | green | 0001 | 1 |
| red | 0010 | 2 | |
| orange | 0011 | 3 | |
| A2 | green | 0100 | 4 |
| red | 1000 | 8 | |
| orange | 1100 | 12 |
To switch several LEDs simultaneously, the respective decimal values have to be added up.
Example: If LED A1 shall flash red and LED A2 green at the same time, the command is piTest -w RevPiLED,6 (bit pattern: 0000 0110 = decimal values 2+4).
If a signal is to be added to an existing LED circuit, the value for all required signals must be recalculated and rewritten.