scholarly journals Evaluation of Response Time in Ethernet-based Automation Systems

2006 ◽  
Author(s):  
Gaelle Marsal ◽  
Bruno Denis ◽  
Jean-Marc Faure ◽  
Georg Frey
Keyword(s):  
Response Time ◽  
Automation Systems

scholarly journals Reconfigurable Logic Controller—Direct FPGA Synthesis Approach

2021 ◽  
Vol 11 (18) ◽  
pp. 8515
Author(s):  
Adam Milik ◽  
Marcin Kubica ◽  
Dariusz Kania
Keyword(s):  
Response Time ◽  
Program Implementation ◽  
High Performance ◽  
Formal Method ◽  
Control Program ◽  
Graph Representation ◽  
Program Execution ◽  
Intermediate Form ◽  
Automation Systems ◽  
Programmable Devices

Programmable logic controllers are commonly used in automation systems. Continuously growing demands result in the growth of control program complexity. The classic approach, based on programmatic serial-cyclic execution, results in an unacceptable extension of response time. To overcome long response time massive parallel program execution is proposed. It utilize direct in hardware program implementation in field programmable devices. The paper brings a formal method of representing control programs using flow graphs and enabling single cycle computations. The developed method accepts ladder diagrams (LD) and sequential function charts (SFC), according to IEC61131-3 standard requirements. It is capable of handling logic and arithmetic computations, enabling its hardware mapping. The intermediate form is optimized using flow graph representation and BDDs for analyzing logic dependencies. The BDD representation of logic dependencies enables direct mapping to lookup tables of a selected FPGA family. All the above steps deliver high-performance and direct hardware implementation of the control program given by standard languages. The controller response time is short, predictable, and independent from logic conditions during program execution.

scholarly journals Analytic Calculus of Response Time in Networked Automation Systems

2010 ◽  
Vol 7 (4) ◽  
pp. 858-869 ◽  
Author(s):  
Boussad Addad ◽  
Saïd Amari ◽  
Jean-Jacques Lesage
Keyword(s):  
Response Time ◽  
Automation Systems

scholarly journals Finding the bounds of response time of networked automation systems by iterative proofs

2009 ◽  
Vol 42 (4) ◽  
pp. 1382-1387 ◽  
Author(s):  
S. Ruel ◽  
O. de Smet ◽  
J.-M. Faure
Keyword(s):  
Response Time ◽  
Automation Systems

Temporal Prediction Errors Affect Short-Term Memory Scanning Response Time

2016 ◽  
Vol 63 (6) ◽  
pp. 333-342
Author(s):  
Roberto Limongi ◽  
Angélica M. Silva
Keyword(s):  
Response Time ◽  
Short Term Memory ◽  
Estimation Error ◽  
Predictive Coding ◽  
Time Estimation ◽  
Prediction Errors ◽  
Memory Scanning ◽  
Short Term ◽  
Term Memory ◽  
Temporal Prediction

Abstract. The Sternberg short-term memory scanning task has been used to unveil cognitive operations involved in time perception. Participants produce time intervals during the task, and the researcher explores how task performance affects interval production – where time estimation error is the dependent variable of interest. The perspective of predictive behavior regards time estimation error as a temporal prediction error (PE), an independent variable that controls cognition, behavior, and learning. Based on this perspective, we investigated whether temporal PEs affect short-term memory scanning. Participants performed temporal predictions while they maintained information in memory. Model inference revealed that PEs affected memory scanning response time independently of the memory-set size effect. We discuss the results within the context of formal and mechanistic models of short-term memory scanning and predictive coding, a Bayes-based theory of brain function. We state the hypothesis that our finding could be associated with weak frontostriatal connections and weak striatal activity.

A Response-Time Investigation of Vehicle Stereotypes

2000 ◽  
Author(s):  
Michael Anthony ◽  
Robert W. Fuhrman
Keyword(s):  
Response Time

A Response Time Model on the Role of Spectral and Duration Cues in Vowel Perception

2014 ◽  
Author(s):  
Gabriel Tillman ◽  
Don van Ravenzwaaij ◽  
Scott Brown ◽  
Titia Benders
Keyword(s):  
Response Time ◽  
Time Model ◽  
Vowel Perception ◽  
Response Time Model
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