New-Tech Europe Magazine | Oct 2017 | Digital Edition

Figure 1: Global Smart Factory production resources are horizontally integrated into a network of logistic content providers and entities calling for products like sales departments, customers, channel partners, etc

Figure 2: Several autonomous Cyber Physical Systems (CPS) are vertically integrated into a Cyber Physical Production System (CPPS) that is connected to the Smart Factory Cloud and controlled by a Smart Factory Manager

another CPS. These provide the first modules of a consistent, modular and decentralised system. Any deviations in the normal motor current are detected immediately, and this happens without any additional effort and costs relating to additional measurement technology. Rising values may indicate signs of wear and tear and help plan maintenance activities in advance. In the case of applications with pumps, a drop in the current for instance, can identify whether the pump is running dry. If there is the threat of an overload, counter- measures can be implemented within the machine or system, preventing the protective circuit breaker from tripping and causing machine downtime. Conversely, by taking into account the load status of the motors in different climate conditions, a conveyor belt can be loaded in the ideal way to ensure that the system always delivers the maximum production capacity

a CPS. Via its electronic unit, the PKE and the DE1 can collect data, such as motor current, overload along with various items of status information, and pass this on via the intelligent wiring system. This is not sufficient on its own to meet all the requirements of a smart device, without the connection module used for the intelligent wiring system being equipped with a latest-generation ASIC module. The ASIC module can not only analyse the data supplied by the motor-protective component, such as a variable speed starter, but it also provides sufficient programme memory and computing capacity to analyse and interpret the data, and make autonomous decisions, e.g. reducing the speed of the connected motor. In combination with other sensors, this creates a CPS, for example a transport element of a conveyor system, which is then able to independently establish communication with

with each other and become an independent cyber physical production system (CPPS). Only production commands (a change of configuration for example) or CPPS information that require external actions (like predictive maintenance) are exchanged based on industry standard protocols like OPC-UA between the CPPS and the Smart Factory controller. This decentralised approach reduces the amount of ‘big data’ communicated with the cloud. An example of how a device with this technology can become smart is the PKE electronic motor- protective circuit breaker or the DE1 variable speed starter from Eaton. By connecting these and other smart devices, such as sensors and actuators, to Eaton’s SmartWire- DT intelligent wiring system the switching device easily turns into Motor protection with added value

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