Automatic Configuration of OPC UA for Industrial Internet of Things Environments

Gutierrez-Guerrero, Jose Miguel; Holgado-Terriza, Juan A.

doi:10.3390/electronics8060600

Cited by 23 publications

(15 citation statements)

References 33 publications

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“…Only one device, the master, can initiate request–response messages to other devices (slaves) by sending a query to an individual slave or sending a broadcast query to all slaves. In the case of Modbus TCP/IP, the slave address is identified by an IP address [ 39 ].…”

Section: System Architecture Designmentioning

confidence: 99%

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ISA 100.11a Networked Control System Based on Link Stability

Florencio

Neto

Martins

2020

Sensors

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Wireless networked control systems (WNCSs) must ensure that control systems are stable, robust and capable of minimizing the effects of disturbances. Due to the need for a stable and secure WNCS, critical wireless network variables must be taken into account in the design. As wireless networks are composed of several links, factors that indicate the performances of these links can be used to evaluate the communication system in the WNCS. This work presents a wireless network control system composed of ISA 100.11a sensors, a network manager, a controller and a wired actuator. The system controls the liquid level in the tank of the coupled tank system. In order to assess the influence of the sensor link failure on the control loop, the controller calculates the link stability and chooses an alternative link in case of instability in the current link. Preliminary tests of WNCS performance were performed to determine the minimum stability value of the link that generates an error in the control loop. Finally, the tests of the control system based on link stability obtained excellent results. Even with disturbances in the network links, the control system error remained below the threshold.

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Section: System Architecture Designmentioning

confidence: 99%

“…Modbus TCP/IP is mostly used in the data sharing between the field device level (e.g., PLC, CAN J1939 to the Modbus Gateway) and the SCADA system level. Modbus TCP/IP as a protocol could support communication between field devices via TCP, i.e., between sensors, actuators and PLCs [ 39 , 40 ].…”

Section: System Architecture Designmentioning

confidence: 99%

ISA 100.11a Networked Control System Based on Link Stability

Florencio

Neto

Martins

2020

Sensors

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“…In the context of interoperability inside Industry 4.0, there is also so much interest behind the standard OPC UA (open platform communications unified architecture) [7]. OPC UA plays an important role in current industry environments [8] and it is considered the most accepted protocol which harmonizes the machine to machine (M2M) interaction [9]. During these last years, OPC UA has proven to be an effective communications middleware mainly in industrial applications [10].…”

Section: Introductionmentioning

confidence: 99%

Insights into Mapping Solutions Based on OPC UA Information Model Applied to the Industry 4.0 Asset Administration Shell

Cavalieri

Salafia

2020

Computers

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In the context of Industry 4.0, lot of effort is being put to achieve interoperability among industrial applications. As the definition and adoption of communication standards are of paramount importance for the realization of interoperability, during the last few years different organizations have developed reference architectures to align standards in the context of the fourth industrial revolution. One of the main examples is the reference architecture model for Industry 4.0, which defines the asset administration shell as the corner stone of the interoperability between applications managing manufacturing systems. Inside Industry 4.0 there is also so much interest behind the standard open platform communications unified architecture (OPC UA), which is listed as the one recommendation for realizing the communication layer of the reference architecture model. The contribution of this paper is to give some insights behind modelling techniques that should be adopted during the definition of OPC UA Information Model exposing information of the very recent metamodel defined for the asset administration shell. All the general rationales and solutions here provided are compared with the current OPC UA-based existing representation of asset administration shell provided by literature. Specifically, differences will be pointed out giving to the reader advantages and disadvantages behind each solution.

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“…The developments were applied to a water facility model realized for this purpose and on a real system. The results prove the efficiency of the concept.The classical automation pyramid is transforming under the Industry 4.0 guidance into a different structure that facilitates direct connection and communication between entities [6-8].The current functional solutions from the industrial environment consist of a large variety of dispersed systems, both chronologically and by location, leading to the necessity of ensuring the interoperability of those solutions.Although the heterogeneity of devices used in industry naturally supported the appearance of many communication protocols (see [9][10][11]), the Open Platform Communications Unified Architecture (OPC UA) was gradually imposed as the standard IIoT protocol.The studies from [12][13][14] analyze the current OPC UA implementations regarding Industry 4.0 specific digitalization solutions, while [15][16][17][18] have successfully used OPC UA for increasing both interoperability and connectivity of different automation systems, thus emphasizing that OPC UA is an essential requirement for any Industry 4.0 compliant technical system.The superior connectivity and interoperability between entities from technical systems under the Industry 4.0 guidance have led to the appearance of the data accumulation concept, which is primarily implemented in industry using historian applications [19,20].The data gathered by historian applications is mostly unused, although it opens new possibilities in the proactive historian applications area. Research towards stored data analysis algorithms and optimization strategies must provide insights into pattern identification, learning capabilities, and solid conclusions regarding real-world optimizations.…”

mentioning

confidence: 99%

“…Although the heterogeneity of devices used in industry naturally supported the appearance of many communication protocols (see [9][10][11]), the Open Platform Communications Unified Architecture (OPC UA) was gradually imposed as the standard IIoT protocol.…”

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confidence: 99%

Industrial Internet of Things and Fog Computing to Reduce Energy Consumption in Drinking Water Facilities

et al. 2020

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The industry is generally preoccupied with the evolution towards Industry 4.0 principles and the associated advantages as cost reduction, respectively safety, availability, and productivity increase. So far, it is not completely clear how to reach these advantages and what their exact representation or impact is. It is necessary for industrial systems, even legacy ones, to assure interoperability in the context of chronologically dispersed and currently functional solutions, respectively; the Open Platform Communications Unified Architecture (OPC UA) protocol is an essential requirement. Then, following data accumulation, the resulting process-aware strategies have to present learning capabilities, pattern identification, and conclusions to increase efficiency or safety. Finally, model-based analysis and decision and control procedures applied in a non-invasive manner over functioning systems close the optimizing loop. Drinking water facilities, as generally the entire water sector, are confronted with several issues in their functioning, with a high variety of implemented technologies. The solution to these problems is expected to create a more extensive connection between the physical and the digital worlds. Following previous research focused on data accumulation and data dependency analysis, the current paper aims to provide the next step in obtaining a proactive historian application and proposes a non-invasive decision and control solution in the context of the Industrial Internet of Things, meant to reduce energy consumption in a water treatment and distribution process. The solution is conceived for the fog computing concept to be close to local automation, and it is automatically adaptable to changes in the process’s main characteristics caused by various factors. The developments were applied to a water facility model realized for this purpose and on a real system. The results prove the efficiency of the concept.

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Automatic Configuration of OPC UA for Industrial Internet of Things Environments

Cited by 23 publications

References 33 publications

ISA 100.11a Networked Control System Based on Link Stability

ISA 100.11a Networked Control System Based on Link Stability

Insights into Mapping Solutions Based on OPC UA Information Model Applied to the Industry 4.0 Asset Administration Shell

Industrial Internet of Things and Fog Computing to Reduce Energy Consumption in Drinking Water Facilities

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