Based On Ethernet PLC-PC Frame To Develop The Supervisor System For Gravure Press

Gravure print is becoming the main trend for printing and packaging business because it has the advantages of excellent ink layer, saturated and even color, broad range of stock, powerful processing capacity and convenient maintenance; whereas domestic gravure press cannot integrate the printing with supervisor system to automatically exchange real situation and production information.The subject takes AZJ series gravure press which are produced by SHAANXI BEIREN as the base, uses the management experience of HUANSHAN YONGXIN and PROPACK companies for reference; adopts videotex of data communication to develop the supervisor system for gravure press, which can make the operator know the working mode of printing press at any moment, conveniently send and report the information, analyze the production information and remotely supervise in-line gravure press. The management system developed successfully has filled in the gaps of domestic gravure press at real-time supervision, improving the management level and the degree of information transmission.The subject mainly studies on:(1) Based on Ethernet to construct PLC-PC frame for analyzing, sending and reporting the communication signals between recipe data and PLC-PC.(2) Confirm the functions and data on the base of knowing the user's requirements; Choose SQL Server2005 database to complete its systematic development.(3) Design and memory the recipe data-block on the central controller S7-300PL for gravure press by using the programmable software STEP7; Complete the recipe management on Human-Machine-Interface TP270 for gravure press by using ProTool software.(4) Develop the PLC- PC communication on the base of Ethernet OPC frame, including the communication between PLC and OPC Server, PLC and OPC Server.(5) Develop remote C/S supervising system for monitoring the equipment performance by using the programmable OPCServer/C#.The subject has got anticipative result by emulational experiment in lab.(1) We have set up the reliable communication between PLC-PC by using OPC Server/Ethernet, monitoring the gravure press performance at real time.(2) We have realized sending and reporting recipes by PLC-PC network and friendly interface.(3) We have reached automatic production management, which can inquire and count the recipe data by operating SQL databank.