Modbus TCP & RTU guide for Raspberry Pi PLCs: Python & Node-RED examples Nov 21, 2023 A Raspberry PLC talks Modbus RTU through its RS-485 ports and Modbus TCP through its Ethernet ports. In Python you use the pymodbus library, and in Node-RED the node-red-contrib-modbus nodes. Both can... Read more
Bus SPI on PLC Raspberry from Industrial Shields Nov 2, 2023 Index Introduction Requirements The SPI Protocol Advantages and Disadvantages Typical SPI connections Hardware Software "Echo" example Introduction In this post we will learn about the SPI bus , one o... industrial raspberry RaspberryPLC raspberry spi SPI Read more
How to use PyModbus with a Raspberry Pi PLC: async examples Sep 25, 2023 Complete guide: Modbus TCP and RTU on Raspberry PLCs, with Python and Node-RED PyModbus is the Python library for Modbus TCP and Modbus RTU. On a Raspberry PLC you install it in a Python virtual envir... Read more
How to configure the TTL serial port (UART) on a Raspberry PLC Mar 21, 2023 The TTL serial port of the Raspberry PLC is the UART of its Raspberry Pi, at 3.3 V. On Linux you use it as /dev/serial0 . To enable it, open sudo raspi-config , go to Interface Options > Serial Port ,... Baud Rate Bits Configuration Parity Rx Serial Serial TTL Slave Stop Transmission Tx Read more
Using a python script in Node-RED to control a Raspberry PLC Feb 2, 2023 Introduction The best programming interface to work with Raspberry PLC is Node-RED, but it can be difficult to get used to it because the function node (one of the most used nodes) must be programmed ... Node-Red Python RaspberryPLC Read more
Installing an Operative System in the Raspberry PLC Jan 20, 2023 Getting Started with Raspberry Pi OS Installation Raspberry Pi is a versatile tool used by a global community of enthusiasts and professionals, each with their own preferences for working with this co... Raspberry Screen Read more
Connecting the Raspberry PLC to internet using SIM7600G-H Dongle Jan 20, 2023 Introduction Have you ever wanted to connect your Raspberry PLC to the internet without the need of WiFi or Ethernet connection? The SIM7600 device helps us do that task, by just connecting a SIM card... RaspberryPLC SIM7600E Wifi Read more
Communication between Raspberry PLC and M-Duino PLC with MQTT Nov 29, 2022 Introduction To get used to MQTT servers check Part 1 . In this Part 2, communication between Raspberry based PLC and M-Duino based PLC will be covered using the Raspberry as the MQTT broker. Requirem... Ethernet M-Duino MQTT Node-Red Raspberry RealTime Read more
How to manage permissions with Raspberry PLC and Node-RED Nov 21, 2022 Introduction Authorisations management is key to help system administrators control all users and their access rights to read, write and modify files on a system. The visibility of some files is also ... Dashboard Node-Red Raspberry Read more
Read current values from SCT010T-D with Raspberry PLC and Node-RED Oct 25, 2022 Introduction Do you have a SCT010T-D and want to read current from a wire? In this post you are going to learn how to: connect it to your Raspberry PLC industrial controller, read values from an analo... Ethernet Industrial Node-Red OpenSource RaspberryPLC Read more
Modify a Raspberry PLC / Touchberry Image Sep 5, 2022 Introduction In this post you will see how to modify a Raspberry unmounted to make the changes required by the user and save them on a uSD card. This is very useful to create custom images and replica... PanelPC Raspberry RaspberryPLC Read more
How to communicate a Raspberry PLC with CANBus Jun 9, 2022 Introduction Do you want to learn how to program the CAN SPI Click board to communicate your new Raspberry Pi based PLC v4 or v6 with other devices through CANBus ? In this post, we will learn how to ... canbus industrial automation open source hardware RaspberryPLC Read more