Title :
Application of S7-200 PLC to the monitoring system of strip steel temperature
Author :
Xiaoyong Zhang ; Danghong Zhang ; Yixin Su ; Pei Lv
Author_Institution :
Sch. of Autom., Wuhan Univ. of Technol., Wuhan, China
Abstract :
This paper presents the communication method realized through RS485 bus and RTU protocol of Modbus in strip steel temperature monitoring system of the hot dip galvanizing unit. The emphasis is to analyze the design of S7-200 communication program using the protocol library of Modbus RTU slave station. S7-200 PLC is designed as a slave station which receives message from the industrial personal computer, so as to control acousto-optic alarm circuit for indicating the temperature condition of hot dip galvanizing unit. Meanwhile, it reads the strip steel weld signals which are necessary for the industrial personal computer.
Keywords :
computerised monitoring; metallurgical industries; programmable controllers; protocols; temperature measurement; Modbus; Modbus RTU slave station; RS485 bus; RTU protocol; S7-200 PLC; acousto-optic alarm circuit; hot dip galvanizing unit; industrial personal computer; protocol library; strip steel temperature monitoring system; strip steel weld signals; Monitoring; Ports (Computers); Protocols; Steel; Strips; Temperature measurement; Welding; S7-200 PLC; acousto-optic alarm; modbus protocol; monitoring system; weld detection;
Conference_Titel :
Power Engineering and Automation Conference (PEAM), 2012 IEEE
Conference_Location :
Wuhan
Print_ISBN :
978-1-4577-1599-0
DOI :
10.1109/PEAM.2012.6612455