Hi. I sniffer the data that OpenPLC sends to a slave of digital 8 inputs with address 1 with Modbus RTU, and there are some bytes that I don't know...
Hi, I am trying to add a Modbus RTU slave device and get the following error "Please fill out all the fields before saving!" slave devices...
Hi all together. I´m trying to use a PT Sensor with OpenPLC. Well knowing, that it might be not the easiest way to connect a temperature probe to...
Hi, They know how a button could be implemented on the web page to be able to perform Power Off on the Raspberry. Thankful
I made a small project for testing, just 1 UINT cyclically increased and published on %MW0 = register 1024 to read it by Modbus TCP. It works fine, I...
Hi everybody, I'd like to install openPLC run-time in my orange pi PC box (Armbian os, an adaptive version of Rasbian Buster ). I've installed using...
Dear friends, I have this problem : Thanks in advance for your respons. Regards Open4ever
Dear All, Since ESP8266 have I2C support, I wish to used it for some I2C Sensors (e.g BME280) or to add some IO expand on ESP8266. Is OpenPLC...
Dear All, I install OpenPLC on Raspi (IP 192.168.0.103) and use Wemos ESP8266 (IP 192.168.0.100) as Slave. All run well until I try to access the...
I follow the step to install OpenPLCv3 but I can not run the file name webserver.py and I got this message from teminal. ...
Dear all. i wanted to use Rasberry pi and openplc software to create own plc hardware for commercial purpose I need few clarification before going...
Dear all, I am newbie to using open PLC and Rasberry pi. I wanted to test some code PLC code using Rasberry pi ...
I have a Raspberry PI 2 B v1.1 and a Raspberry PI 1 B rev2. On each of these, I used NOOBS v3.0.1 to install Raspbian. I updated Raspbian with: sudo...
Hello Admin, I want to use Raspberry Pi 3 model B+ for OpenPLC but I don't know that Raspberry Pi 3 model B+ is suitable for OpenPLC or not? Please...
Is there a way to execute an OS command in OpenPLC? I would like to run an ordered shutdown based on events in OpenPLC. Something like this from...
Ciao, quando avvio runtime, ho questo errore: Traceback (ultima chiamata ultima): file "webserver.py", riga 1875, in ...
I have now RPI running as Modbus TCP server/slave with OpenPlc, with AdvancedHMI, if I add modbus slave to be connected with USB-RS485 to the RPI,...
What is the time that Raspberry Pi takes to run each Boolean instruction, data movement or mathematical operations?
Hello, I think there is an error on the OpenPLC I/O mapping for the UniPi hardware on the website: ...
Hello, I'm currently learning ladder logic and came across your site. Firstly, Thank you for putting together openplc and sharing it for free....
Hello, im trying to use openplc with an old raspberry pi b, but it is not working as expected. I created a simple project, with just a button (...
Hello, I have question about setup the IO status detection on pins and speed for detection. In the 'OpenPLC Editor' I'm set higher value of...
I run Open PLC on raspberry Pi. It is running fine. Now I need to debug my PLC ladder logic. Please help me to How to debug online ladder logic and...
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