Projects designed and build (2001-2014).
- RPiPLC: Create a simple Raspberry PLC.
- PLµX: Programmable Logic Microcontroller on Linux. (Project start October 2012).
- DCIPLC: Is actually a program that replaces the CPU module of a PLC, and within which control programs can be developed and modified.
- DCIBUS: The backbone of the system is a complete serial bus that uses its own protocol. Data is sent to and received from a maximum of 64 terminals over long distances using an RS485 interface.
- Kaartspel (Dutch): hoger lager kaartspel geschreven in PHP.
PLµX. A Programmable Logic Microcontroller on Linux. Project
started: October 2012.
The PLµX Project is an effort to produce a Embedded Linux-based Programmable Logic Controller (PLC).
PLCs were developed in the 1960s to replace the complex electrical relay circuits widely used for machine control in industrial automation. Users program PLCs to define a series of actions that a machine will perform. The PLC works by reading input signals from devices such as sensors or switches and, depending on the value(s), turning outputs on or off.
PLCs are microcontroller circuit boards that are frequently used
in a wide variety of industrial control and automation
applications. The PLC described here is implemented in software. A
complete PLC is simulated on a standard Windows PC. Using an
external connection box, the PC can also sense and control many
kinds of real items.
The abbreviation ‘PLC’ stands for ‘Programmable Logic Controller’. These devices are also sometimes referred to as ‘freely programmable controllers’ in the trade. This term refers to an electronic circuit that can be used to automate machinery and processes. A PLC thus can replace a conventional relay logic circuit.
A PLC always consists of a CPU module and several digital input and output modules. The number of input and output modules depends on the size of the process to be controlled.One of the major advantages of a PLC is that it makes it very easy to extend or modify the process. Consequently, PLCs have for years been an indispensable element in the automation of industrial systems.
The backbone of the system is a complete serial bus that uses its
own protocol. Data is sent to and received from a maximum of 64
terminals over long distances using an RS485 interface.
The hardware of the system consists of a simple RS232 to RS485 converter and a microprocessor driven terminal. Of the latter you will obviously need to build as many as are required. The software consists of a program for the PC and one for the 'terminal processor'.
Een hoger-lager kaartspel geschreven in de programmeertaal: php.