High Communication Throughput and Low Scan Cycle Time with Multi/Many-Core Programmable Logic Controllers

Canedo, Arquimedes; Ludwig, Hartmut; Faruque, Mohammad Abdullah Al

doi:10.1109/les.2014.2299731

Cited by 16 publications

(5 citation statements)

References 6 publications

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“…As multi-core processors become more common, their usage in the context of industrial automation is addressed as well. Recent efforts focus on the parallel execution of function blocks of one network, in order to minimize the finishing time of the application [8], [9], [10], [11]. This allows for shorter scan cycle times and therefore better control.…”

Section: Related Workmentioning

confidence: 99%

A many-core based execution framework for IEC 61131-3

Becker

Sandström

Behnam

et al. 2015

IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

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Programmable logic controllers are widely used for the control of automation systems. The standard IEC 61131-3 defines the execution model as well as the programming languages for such systems. Nowadays, actuators and sensors connect to the programmable logic controller via automation buses. While such buses, as well as the sensors and actuators, become more and more powerful, a shift away from the current distributed operation of automation systems, close to the field level, becomes possible. Instead, execution of complex control functions can be relocated to more powerful hardware, and technologies. This paper presents an execution framework for IEC 61131-3, based on a many-core processors. The presented execution model exploits the characteristics of the IEC 61131-3 applications as well as the characteristics of the many-core processor, yielding a predictable execution. We present the platform architecture and an algorithm to allocate a number of IEC 61131-3 conform applications. Experimental as well as simulation based evaluation is provided.

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Section: Related Workmentioning

confidence: 99%

A many-core based execution framework for IEC 61131-3

Becker

Sandström

Behnam

et al. 2015

IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

View full text Add to dashboard Cite

show abstract

“…The work [8] introduces a tool that generates parallelism from sequential IEC 61131-3 code, based on a previous transformation to C code. Generated parallelism promises good usability and good results, but it turned out that industrial applications in practice oftentimes poorly fit for parallel generation [9]. This approach shifts the complexity and development risk to the generator, thus the output is hardly comprehensible for the user.…”

Section: A Comparing Approachesmentioning

confidence: 99%

“…Recent approaches consider the general use case, in an attempt to generate parallelism from sequential IEC 61131-3 code [8] [9]. In contrast, this work focuses only on particular uses cases, which heavily benefit from parallelism on code level.…”

Section: Introductionmentioning

confidence: 99%

Exploiting multicore processors in PLCs using libraries for IEC 61131-3

Specht

Flatt

Eickmeyer

et al. 2015

2015 IEEE 20th Conference on Emerging Technologies &Amp; Factory Automation (ETFA)

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This paper presents an approach for exploiting multicore hardware architectures on coding level for the IEC 61131-3. An interface between the IEC 61131-3 code and software of a different programming language outsources the actual parallel workload. For validation purpose, an embedded multicore hardware is used as a controlling device, which executes software for the use case of model based condition monitoring. The case study results show an explicit benefit of the multicore exploiting software in comparison to its singlecore counterpart, which is reflected with a faster processing of up to a factor of 3. Overall, this approach can be used for developing high performance applications or for accelerating existing applications in industry

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“…Today, manufacturing Time-Triggered Real-time Embedded (TTRE) system is experiencing a major paradigm shift thanks to the innovations in the semiconductor and software industries that make the manufacturing faster, more energy efficient, and reliable [3,2,6]. Model-Based Design (MBD) [10,11] is considered to be a promising solution for the design and verification of the TTRE systems because any modification to the system may be rapidly addressed and verified in a higher level of abstraction.…”

Section: Introductionmentioning

confidence: 99%

Model-based design of time-triggered real-time embedded systems for digital manufacturing

Canedo

Faruque

2015

Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control

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This work presents a novel Model-Based Design (MBD) approach and associated tool-chain for the IEC 61131-3 specific Programmable Logical Controllers (PLC) [2]. Our toolchain automatically synthesizes software for manufacturing Time-Triggered Real-time Embedded (TTRE) systems. A Software-In-the-Loop Simulation (SILS) framework integrated into our tool-chain helps to reduce the design iterations. Using a manufacturing robot-arm use-case, we validate our tool-chain and demonstrate a 39× improvement in the Qualityof-Control (QoC) when compared to the state-of-the-art approach [1]. Our auto-generated scheduler meets all the hard real-time constraints (zero deadline misses) for a given TTRE system when compared to the scheduler (e.g., 145 deadline misses for a CPU utilization of 95%) presented in [13].

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High Communication Throughput and Low Scan Cycle Time with Multi/Many-Core Programmable Logic Controllers

Cited by 16 publications

References 6 publications

A many-core based execution framework for IEC 61131-3

A many-core based execution framework for IEC 61131-3

Exploiting multicore processors in PLCs using libraries for IEC 61131-3

Model-based design of time-triggered real-time embedded systems for digital manufacturing

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