Automation & Control
All Control and Visualisation Tasks in Industrial Settings
The term automation & control covers all control and visualisation tasks in industrial settings. In the case of an injection moulding machine, for instance, it is possible to collect all movement data of the closing and injection units. In addition, one can monitor data such as oil temperature and pressure. These data are then shown to the machine operator on a visualisation display.
In essence, this involves the four steps of data acquisition, data preparation, data processing, and data display.
Four Steps of Automation & Control
Data Acquisition
The first step in data acquisition takes place via so-called input cards. These can be designed as analog, digital or mixed-signal cards. The input cards comprise a connector system and a varistor to dissipate powerful overvoltage pulses. An analog front end is located on the input card, which is responsible for filtering the signals, such as filtering surge, burst and conducted RF. It also reduces the input voltage (e.g. from 220VDC to 3.3VDC). Minimelf or anti-surge resistors from CODICO's broad portfolio are ideal for this purpose.
Data Preparation
Data processing is carried out by a microcontroller located on the input module. Here, the data is processed so that it can be embedded in a protocol and exchanged between machines. CODICO offers a selection of high-quality modules that enable wireless data transmission.
Data Processing
Data processing takes place in the central processing unit (CPU). The algorithm developed by the programmer is executed in this CPU, which analyses the incoming data and controls the corresponding actions. Depending on the application, complex calculations, control commands or the forwarding of processed data to other systems can take place here. Reliable and fast processing is crucial to ensure the real-time capability and precision of the entire system.
Data Display
The final data presentation takes place via a suitable display. Depending on the system architecture, the display is projected via an HDMI cable or a VNC player. In some cases, the visualisation device also has a USB port for updates. The connections must be protected by ESD protection diodes to prevent device crashes or damage to the ports.