rsume
2009 3rd International Conference on Power Electronics Systems and Applications
PLC and Configuration Software Based Supervisory and Control
System for Oil Tanks Area
Xi CHEN1
Yanbo CHE1 K.W.E CHENG2
1
School of Electrical Engineering & Automation, Tianjin University, Tianjin China.
E-mail: ybche@tju.edu.cn
2
Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong,
E-mail: eeecheng@polyu.edu.hk
Abstract - A supervisory and control system for oil tanks area based on PLC S7-300 and configuration software
ForceControl is introduced in this paper. The hardware structure of the system and the software design are both described in detail. In this system, Superior computers communicate with PLC through Industrial Ethernet. The superior computers system adopts duplex redundancy and the PLC adopts software redundancy .This monitoring system integrates the merit of PLC and computer and improves the reliability.
Keywords - PLC, configuration software, supervisory and control system, software redundancy
I. INTRODUCTION
Fig. 1 Overall structure diagram of the system
With the increasing competition of the oil market oil depots are playing a more and more important role, and it has become a long-term important job to supervise and control the operation state of oil depots.This paper designs a supervisory and control system for a oil depot in
Shandong Province. This oil depot collected tank information and controlled valves manually before. There were some shortcomings in it such as slow supervisory, great error and low reliability. So it is necessary to establish a better supervisory and control system that is timely, accurate and reliable.
Programmable logic controllers PLCs have been widely used in the industrial control feilds because of its merits such as simple structure, flexible functions, high reliability and strong ability in communication. Computers have advantages in the data display and
PLC and Configuration Software Based Supervisory and Control
System for Oil Tanks Area
Xi CHEN1
Yanbo CHE1 K.W.E CHENG2
1
School of Electrical Engineering & Automation, Tianjin University, Tianjin China.
E-mail: ybche@tju.edu.cn
2
Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong,
E-mail: eeecheng@polyu.edu.hk
Abstract - A supervisory and control system for oil tanks area based on PLC S7-300 and configuration software
ForceControl is introduced in this paper. The hardware structure of the system and the software design are both described in detail. In this system, Superior computers communicate with PLC through Industrial Ethernet. The superior computers system adopts duplex redundancy and the PLC adopts software redundancy .This monitoring system integrates the merit of PLC and computer and improves the reliability.
Keywords - PLC, configuration software, supervisory and control system, software redundancy
I. INTRODUCTION
Fig. 1 Overall structure diagram of the system
With the increasing competition of the oil market oil depots are playing a more and more important role, and it has become a long-term important job to supervise and control the operation state of oil depots.This paper designs a supervisory and control system for a oil depot in
Shandong Province. This oil depot collected tank information and controlled valves manually before. There were some shortcomings in it such as slow supervisory, great error and low reliability. So it is necessary to establish a better supervisory and control system that is timely, accurate and reliable.
Programmable logic controllers PLCs have been widely used in the industrial control feilds because of its merits such as simple structure, flexible functions, high reliability and strong ability in communication. Computers have advantages in the data display and
References: Maintenance, China Machine Press, 2008 [2] Beijing Technologies, 2008 [4] Siemens Ltd., China