The Research on the Register Control System of Multi-Color Web Offset Press Based on Computer and PLC

According to the strong interference in performance and the difficulty in register of the multi-color web offset press ,this paper uses the anti-interference ability of PLC and rich hardware and software resources of computer, adopting PLC and PC respectively as the on-site slave computer and host computer, at the same time, it uses camera as image acquisition tool. Based on all these above, the paper constructs a new type of register control system of multi-color web offset press. The paper also introduces the compositions of the hardware and software of this system in details. The experiment has improved that the automatic detection, image recognition and automatic calibration of the register marks can be realized by the joint control on image, PLC and configuration software, and it has a strong practical applicability.