1. New visual studio project
Create a new project :
Continue reading Siemens PLC and C# communication (Simatic Step7/PlcSim – VisualStudio)
Simulation : PLC (Siemens) and HMI (Eaton/Moeller with Galileo)
This post is following the one on Siemens PLC simulation with PlcSim.
1. PlcSim
We need a running program on PlcSim. PlcSim has to use the PLCSIM(TCP/IP) interface and has to be listening on the same IP as the computer.
Here a DB with one bit that is toggled every second :
Your PLC side is ready !
Continue reading Simulation : PLC (Siemens) and HMI (Eaton/Moeller with Galileo)
Siemens PLC simulation – Step7 / PlcSim
1. Introduction
SIMATIC S7-PLCSIM allows you to simulate a controller for functional testing on the programming device/PC.
2. Step7
2.1 New project
As a first step, we start SIMATIC Manager and create a new project.
Continue reading Siemens PLC simulation – Step7 / PlcSim
Computer vision : A box on a industrial conveyor
1. Introduction
To start exploring OpenCV with Python, we’ll start by a simple exercise : Detect a cardboard box on a industrial conveyor (from a average picture took with a smartphone) :
As as first step, we’ll identity the contour of the box and define a “perfect” rotated rectangle of the minimum area enclosing our box. The result will be this :
Continue reading Computer vision : A box on a industrial conveyor
Computer vision : OpenCV / Python installation
1. Introduction
In this post, we’ll detail how to install Python and OpenCV on a Windows 7 system.
2. Python installation
2.1 Download / Installation
At this time, OpenCV 3.0 is not fully ready to run with Python 3.X, we’ll download Python 2.7 from here and proceed to the installation.
Continue reading Computer vision : OpenCV / Python installation
Transmission torrent client on FreeBSD 10.1
1. Introduction
Torrent client installation on a FreeBSD 10.1 server.
Continue reading Transmission torrent client on FreeBSD 10.1
Webserver installation on FreeBSD 10.1 (Nginx / PHP / MySQL).
1. Introduction
Webserver installation on FreeBSD 10.1 (Nginx / PHP / MySQL).
2. Installation
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pkg install php56-xml php56-hash php56-gd php56-curl php56-tokenizer php56-zlib php56-zip mysql56-server-5.6.23 nginx |
Continue reading Webserver installation on FreeBSD 10.1 (Nginx / PHP / MySQL).
VPN server (OpenVPN) on FreeBSD for windows clients
1. Introduction : VPN system
We’ll describe the procedure to install a VPN server (OpenVPN) on a FreeBSD 10.1 server for Windows 7 clients.
This VPN will be configured for road warriors clients :
– 100% of the outgoing clients traffic will transit through the VPN server.
– 100% of the outgoing clients traffic will be encrypted before leaving the client computer.
I use this system to secure my connection when using untrusted networks (public WiFi) and to avoid constraints and limitations in some countries.
2. OpenVPN : server (FreeBSD 10.1)
2.1 Install
OpenVPN installation :
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pkg install openvpn |
Continue reading VPN server (OpenVPN) on FreeBSD for windows clients