Control System Of Water Treatment In Thick Plate Rolling And Communication Between Different PLCs

The automatic control system of water treatment in rolling mill is a key and relatively independent system in the control system of rolling mill production line.In the water treatment system,a wide range of field control equipment,using the traditional control program,is bound to lay a lot of control and signal cables,the system complexity,and reliability.In the paper,according to the main equipment process and requirements,in order to ensure the safety of water treatment process,reliability and production continuity,improve the automation level of the plant,control system used at home and abroad to achieve good results in water treatment plant,Based on PLC data monitoring and data acquisition system.According to the technology and requirements of the field equipment,the hardware and software of the system are designed and configured.Finally,the basic program of the PLC control system is as follows: two sets of Siemens S7-300 and one set of Siemens S7-400,Lap,the software between the network communication,in which Siemens S7-400 through the coupler and third-party ABB drive to communicate,while the use of host computer monitoring system to monitor the operation display.This control system configuration includes the power source,CPU,the communication module as well as the labor controlling machine and so on,like this may greatly enhance the system in the production movement the reliability;Simultaneously,the position machine control system has the friendly man-machine display operation contact surface,the entire system Operation and detection of all operations in the host computer to achieve.The use of Siemens PLC between different types of CPU for data communication,can easily achieve the control of all devices,can reliably achieve the PC’s operation and monitoring,complete a variety of complex actions.PLC-based control system in industrial water treatment applications,improve the level of mechanical and electrical integration,more importantly,the stability of the entire system operation,reliability and laid the foundation to ensure that the whole process of continuous,synchronous and stable operation,Thus ensuring the stability of the production line.The continuous operation of the designed system over two years shows that the design scheme and operation scheme are reasonable and reliable.