Abstract
Manufacturing Execution Systems (MES) require the communication services, which allow for easy access to information processed in industrial control systems. Contemporary distributed control systems are based on the IEC 61131 and IEC 61158 standards. This situation causes a bottleneck in communication between control and MES systems. This paper deals with the problem of large data block acquisition between the distributed control system and MES. Authors have put a special focus on Master PLC – Station PLC communication realised in a distributed control system. The limited bandwidth of existing fieldbus network was used. Presented approach has been developed to support data collection process in existing distributed control system used in automotive production. Considered MES functions are related to energy efficiency analysis on machine and production line level. The OPC UA (IEC 62541) standard has been taken into account during large data block size estimation.
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