Data Service

Using ProfiSignal BASIC maximizes data security. Analysis of measurement data is made simple for the user, utilizing a combination of different methods of data storage.

Data Service

The data service is central to data acquisition. The data service functions as a server and provides the ProfiSignal modules with measurement data. The BASIC module can request historical data from the data service, even for several Message devices.

Until now such client/server systems were only available for major control systems running under Linux, requiring major hardware investment and administrative resources. ProfiSignal provides an easy PC solution with user friendly configuration via window dialogues.

The data service is capable of processing large quantities of data. Measurement data, e.g. temperatures or operational data, can be stored over very long time periods. Storing data in the kHz area for vibration analysis or the acquisition of transient processes can also take place without any difficulties.

Measurement data is automatically compressed and saved with average values. This algorithm means that data required for trend graphs can be significantly reduced, particularly for long time periods. Generating graphs is then much quicker with peaks and troughs also being taken into account.

This means that to portray temperature values over a time period of one day, just 360 measurement values need to be retrieved from the database in order to generate the trend graph.

The data service is created as a Windows service. The program is named Data Service and runs in the background, unnoticed by the user.

Data storage in Message devices

Message field devices are capable of storing data locally (up to 1GB). The user can use this storage capability to locally acquire measurement values directly from processes, plant and machinery.

Message devices are also equipped with a network interface (TCP/IP). This means they can be connected to each other and to PCs. Saving data can take place simultaneously within the data service as well as in the Message devices. If the network crashes or a PC malfunctions, data will continued to be saved within the Message device.