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Control system with integrated fieldbus diagnostics

22 March 2016

Siemens believes it is the first supplier to offer fully integrated and extended fieldbus diagnostics for PROFIBUS PA in a process control system. 

The new Simatic AFDiSD Active Field Distributor, which features extended fieldbus diagnostics, allows fieldbus to be installed in the Simatic PCS7 swiftly and reliably using the commissioning wizard. The resulting commissioning report can then report serves as proof of quality for the fieldbus installation.

Users are able to access real time information about the health status of their fieldbus installation, including power, voltage and bus interruptions via the Simatic PCS 7 operator station. This enables them to identify potential disruptions early and initiate counter-measures in good time, helping to increase system availability. 
The extended fieldbus diagnostics with Simatic AFDiSD is based on monitoring of the bus physics (physical layer information). Information such as current and voltage level is recorded and visualised. This makes it possible to easily identify faulty or unconnected field devices or to determine the exact location of bus interruptions and, if necessary, to repair them remotely. It is also possible to identify any changes in current without the need for additional third-party hardware or software tools. This can simplify commissioning and maintenance of fieldbus systems and enables the availability of fieldbus installations and systems to be increased. 

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