Smart transducers (sensors & actuators) with digital outputs are improving in performance and cost efficiency, but are still not readily incorporated into factories for automation, given reservations regarding the interoperability of different vendor devices. The IEEE 1451 standard was developed to unify the communications between sensors to solve this problem. We are driving this standard and design challenging implementation in distributed control for industry 4.0 applications.
The challenges of realizing a IIoT system can be facilitated by applying interoperable solutions in automation systems. Interoperability at the process level can be achieved by creating open interfaces for field devices. The IEEE 1451 family of standard provides the abstract description of services to interact with transducers and description format for the field devices. In order to support complete interoperability with IEEE 1451 systems, it needs to share information and services within and across organizational boundaries.
One of the Key findings is an integration approach of IEEE 1451 TEDS and devices in OPC-UA information model. The proposed concept provides two type information models of IEEE 1451.0 TEDS and IEEE 1451 Devices. An example implementation of a simple TIM in OPC-UA information model is provided to demonstrate the feasibility of the proposed solution. Furthermore, a middleware concept is also proposed to integrate IEEE 1451 semantic models with service-oriented architecture (SOA). However, the proposed middleware concept is a theoretical solution. Therefore, future work will focus on the practical approach of its implementation based on IEC 61499 platform.