In a company with many branches and a commercial building with joint usage, an adequate and energy optimized heating system is needed. All autonomously operating facilities should be automatically backed up on an external server in a control center (in a different city). The local facility managers should connect to the server through the Internet to maintain and optimize the systems. The room conditions such as temperature and humidity should be monitored and controlled via touch panels by head storemen and branch managers. Administration accomplishes these tasks using normal workplace PCs instead of dedicated touch panels. Facility managers should also be informed about malfunctions and alarms from remote. By accessing this information via tablet PC, the facility manger is able to give an initial assessment of the situation. The IT staff is open for a joint usage of the network, provided that the common IT security standards are met.
heating solution for any building
The heat distribution unit is located in the heating plant in the basement that draws the energy from pipelines and distributes it adequately. Thereby, the basic heating of the sales and office areas is ensured through the activation of the components. Additionally, one heating unit per ventilation system is available. The control is done by a L-INX Automation Server that integrates actuators and sensors via L-IOB I/O Modulesand various field busses. A weather station is mounted outside the building, communicating with the L-INX Automation Servers via a field bus.
In each of the three storage areas, one compact heating system is installed. The systems are controlled by one L-IOB I/O Controller each. Per storage area an L-VIS Touch Panel offers the comfortable possibility of monitoring and configuring the room conditions like temperature and humidity. For the processing of central hot water, a L-IOB I/O Controller is used.
Thanks to LOYTEC’s functions and graphics library, the functions and visualizations are configured in a short time, whereby it is always possible to integrate customized features. Functions and symbols that are used in the large central heating system can be reused in the compact heating systems which significantly simplifies engineering and operation by the end user.
All these control and visualization components are interconnected via a network. Because of daisy-chain connections from one device to another, the cabling effort can be minimized. Since all network members communicate with one another through web services (OPC, SOAP) and through HTTPS SSL-Encryption, network configuration can be kept simple and complies with the security standard demanded by the IT department. Communication via firewalls and NAT routers in the intranet and Internet is secure which allows the integration of the company’s WLAN.
The server application of the management system LWEB-900 that supports complete device configuration, trend and alarm logs, calendars and schedulers, parameter settings, and also a periodical device backup, is installed on a virtual server in the control center and is therefore also included in the processes of the IT department, such as backup and maintenance. The client application of LWEB-900 is installed on the workstations computers of the local facility managers, which allows them the unrestricted use of all functions of the management system. LWEB-803 is installed on all workplace computers of administration. Through this application, employees can control the room conditions directly via their own PC.If the facility manager wants to access the system from remote, he uses the web application LWEB-802. This application shows the same views on the tablet PC as the LWEB-900 client.
For using all these access possibilities, no additional engineering is required, as the entire functionality and the graphics are already delivered with the LOYTEC functions and graphics libraries.
The consistent use of LOYTEC products offers the following advantages