Command-control for Real-time Systems by Coppier Herve Chadli Mohammed & Hervé Coppier

Author:Coppier, Herve, Chadli, Mohammed & Hervé Coppier
Language: eng
Format: epub
Publisher: Wiley
Published: 2013-04-22T16:00:00+00:00

5.2.2.4. Control of humidity in the humidifier

The humidifier is a module whose role is to inject the right amount of water into the gas process. The module regulates the humidity by adjusting the flow of water (using an MFC). Just as happens with the mixer, the humidity is controlled by cascaded regulation.

5.2.3. The control system and acquisition of measurements

5.2.3.1. Architecture

The control system for the GCS project uses industrial solutions. This arbitrary choice means that in designing the command/control system, we are able to focus on its implementation and development.

The control systems use industrial programmable logic controllers from Schneider Electric (TSX Premium). The associated SCADA, provided by ETM is PVSS II. The communication between these two modules uses the Modbus TCP protocol. The interfacing between the ground and the PLC is organized by deported modules made by WAGO. The input/output modules (local or deported) from Schneider are not used, and communication between the WAGO and TSX Premium modules runs through a Profibus communication module.

Figure 5.22. The control system for a gas system as part of the LHC experiments

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.