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PLC Program Monitoring for Manufacturing Systems Using PLC Signal Time Difference  

Seong, Kil-Young (아주대학교 산업공학과)
Han, Kwan-Hee (경상대학교 산업시스템공학부)
Pyun, Jai-Jeong (국방과학연구소)
Wang, Gi-Nam (아주대학교 산업정보시스템공학부)
Park, Sang-Chul (아주대학교 산업정보시스템공학부)
Publication Information
Korean Journal of Computational Design and Engineering / v.14, no.3, 2009 , pp. 176-185 More about this Journal
Abstract
Modern manufacturing systems consist of highly automated manufacturing devices, and they are controlled by complicated PLC programs. To make sure the achievement of the control objectives of a manufacturing system, it is very important to monitor the dynamic system behaviors of the manufacturing system. In this paper, we propose a monitoring methodology of a PLC program based on the Software In the Loop Simulation(SILS), which makes use of the time gap information between PLC signals. The errors relevant with PLC signals can be found using the proposed methodology, comparing a normal PLC signal trajectory with a target PLC signal trajectory. The proposed methodology has been implemented and tested with simple examples.
Keywords
PLC(Programmable Logic Controller); PLC Monitoring; Automated manufacturing system;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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