PLC를 사용한 Master Cylinder의 효율적인 제조공정 설계에 관한 연구

다국어 초록 (Multilingual Abstract)

The modern control process requests various types of control system according to large scale, acceleration and complicating of its system.
As the function of industrial fields is getting complicated and the scale of devices is getting huge, the control has become much more complicated and more advanced control system is needed to connect each process systematically. And much time and expense were spent in order to alter the control system according to the change of requirements. Then PLC has been developed by the necessity of this control. The representative language using in PLC is LD which has outstanding merits in description of conditions and interlock logic. Another language, SFC has merits such as excellent judgement of disability of machine, outstanding description of programs, easiness of maintenance and great degree of understanding for the flow of control, as a strong graphic language which is suitable for the description of sequential control logic in the discrete control program.
This thesis has been described manufacturing algorithm of Master Cylinder by SFC language which has outstanding merit in sequential control logic description. Through this, I tried to determine that programming by SFC has much excellence and reduction of memory capacity than programming by LD language. As the result, 5.9% reduction of program size and 22% reduction of uploaded file size have been verifid comparing with LD. Thus, this result is expected to have outstanding memory reduction effect twhen it would apply to the complicated and precisive industrial site as reduction value in single process. And also, it is now possible to establish the hands-down design method when further process control would have been designed by suggesting the convenient method design SFC language.

목차 (Table of Contents)

• Ⅰ. 서론 1
• 1.1 연구 배경 및 필요성 1
• 1.2 연구 방법 4
• 1.3 연구의 내용 및 구성 5
• Ⅱ. 관련연구 6
• 2.1 GRAFCET의 기본이론 6
• 2.1.1 GRAFCET의 정의 6
• 2.1.2 GRAFCET 시퀀스의 종류 12
• 2.2 GLOFA PLC의 개요 18
• 2.2.1 특징 18
• 2.2.2 GLOFA PLC 성능규격 19
• 2.2.3 성능규격에 따른 세부 특성 및 내용 20
• Ⅲ. 시스템 설계 32
• 3.1 시스템 개요 32
• 3.1.1 마스터실린더의 기본 구조 32
• 3.1.2 마스터실린더의 작동원리 33
• 3.2 알고리즘 설계 41
• Ⅳ. 시뮬레이션 및 결과 분석 43
• 4.1 시뮬레이션 43
• 4.2 LD 언어와의 비교 46
• Ⅴ. 결론 48
• 참고문헌 49
• ABSTRACT 51