| 1. |
- Åkerberg, Johan, et al.
(författare)
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Deterministic Downlink Transmission in WirelessHART Networks enabling Wireless Control Applications
- 2010
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Ingår i: IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society. - New York : Institute of Electrical and Electronics Engineers (IEEE). - 9781424452255 - 9781424452262 ; , s. 2120-2125
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Konferensbidrag (refereegranskat)abstract
- Wireless sensor and actuator networks bring many benefits to industrial automation systems. However, unreliable wireless and multihop communications among sensors and actuators cause challenges in designing such systems. Wireless HART is the first standard for wireless real-time industrial applications. However, current Wireless HART standard does not provide services for efficient usage of actuators, which are an essential part of automation. In this paper we focus on Wireless HART and propose a periodic and deterministic downlink transmission functionality which enables efficient usage of actuators and control applications. Furthermore, we define new HART commands extending the interface, without affecting available services, to support the integration of actuators. This can be achieved with minor changes in the current standard.
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| 2. |
- Åkerberg, Johan, et al.
(författare)
-
Integration of WirelessHART Networks in Distributed Control Systems using PROFINET IO
- 2010
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Ingår i: 8th IEEE International Conference on Industrial Informatics (INDIN). - Osaka, Japan : Institute of Electrical and Electronics Engineers (IEEE). - 9781424472987 - 9781424473007 ; , s. 154-159
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Konferensbidrag (refereegranskat)abstract
- In this paper we describe a method to integrate WirelessHART networks in Distributed Control Systems (DCS)using PROFINET IO. By modeling the WirelessHART network in the Generic Station Description file, that describes a PROFINET IO device, the WirelessHART related configuration can be distributed from the central engineering stations. In this way, both process controller configuration and WirelessHART network configuration is engineered and maintained from a central location. Thus the end-user do not need any additional tool-specific training, as the existing tools are used to engineer the WirelessHART networks. We base the method of integration on the keywords simple deployment and maintenance, and flexible topology. A proof-of-concept implementation of the proposed method shows that it is possible to download WirelessHART configuration both to the WirelessHART network managers, as well as the WirelessHART sensors. By integrating WirelessHART in this way, maintenance is greatly simplified as the actual configuration will be downloaded automatically by the DCS when faulty field devices are replaced.
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