Product Description #

The RevPi Core S or RevPi Core SE is a 24 V industrial PC for IIoT and automation projects based on the Raspberry Pi Compute Module 4S. The RevPi is a base module from the Revolution Pi product family. All devices in the Revolution Pi product family are developed in accordance with EN 61131-2.

Components #

Note

RevPi Core S and RevPi Core SE have the same structure.
revpi-core-s-aufbau
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 #

RevPi Core S #

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

RevPi Core SE #

Item No.: RAM eMMC Compatible with RevPi Gateways

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.

Expansion 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 RevPi I/O Modules #

Compatible RevPi Gateways #

RevPi Gateways can only be connected to the system on the far right or far left via a PiBridge plug connector. The RevPi gateways are not supported by the SE models of the Revolution Pi product family.

  • RevPi Gate PROFINET

  • RevPi Gate EtherNet/IP

  • RevPi Gate EtherCAT

  • RevPi Gate PROFIBUS

See RevPi Gateways

RevPi 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 × blind plug for PiBridge/ConBridge

  • 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.

Warning
Danger to life due to electrical shock

There is a risk of fatal electrical shock when working on devices in the switch cabinet with 230 V mains voltage.

▷ Operations in the switch cabinet may only be carried out by qualified electricians.

▷ Before carrying out any operations in the switch cabinet, switch off the power supply properly.

Carry out the mounting and connection in the following order:

  1. Mount the RevPi base module and all expansion modules on a DIN rail.

  2. Connect the expansion modules via PiBridge plug connectors.

  3. If necessary, connect the RevPi Con modules via ConBridge plug connectors.

  4. Connect all other devices such as sensors and actuators. The interfaces available to you for this can be found in the Structure section.

  5. 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.

  6. As the last step connect the power supply.

Note

The RevPi Gateways are not supported by the RevPi SE models.

Access to the Device #

The RevPi is accessed in two steps:

  1. Establishing a Network Connection.

  2. Login on the device.

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 > Save 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).

Note

If a signal is to be added to an existing LED circuit, the value for all required signals must be recalculated and rewritten.