The Research About Field-bus Control System For CS-2 Production Device

There are sequence proccess, distributed proccess and batch proccess in industrial production by the flow peculiarity and output mode. The batch process needs either the control in steps or the sequence control. And it is the integration application for DCS and PLC. With its digital, distributed, and open character, Batch control itself has such character and difficulty as high control flexibility, flexible control strategy, multi-control model, both switch control and simulation control. As presents higher demand on control system, with the development of field-bus technology, there is a new solution of adopting Field-bus Control System (FBC).This paper emphasizes the design and realization of the fuction configuration of both the operation station and field control cell base on CAN field-bus control system (SHCAN2000), for the distributed controls of buttons start, adding material, rising tempratrue and press, mix round and come out, and for the sequence controls of the keep temperature, press and batch measure in the kattle.The CS-2 catalyst field-bus control system has two stations which copy each orther, net bridge, CAN field-bus and 10 sets of field intelligence control configuration. And it includes 25 of simulate control circuit, 32 poits of switch control. The devices in the system: the high press kettle (R201A/B), the receive kettle (R202A/B), the carrier wash kettle (R204), the carrier titanium kettle (R205), the carrier titanium wash and filter kettle (R206A/B/C), SHCANN2000 field-bus control system. In lower computer, it can control the temperature, flux, press, and batch, rotate speed, and pump starts and stops in the kattles as above. In upper computer, we select FIX DMACS software in U.S.A. as the configuration software to operate the interface (NMI) and data management. WIN2000 as the operating system, net adaptor and I/O drive program developed reself, to realize the conection between FIX and SHCAN. And therefore, to finish the setup of the parameter bar chart, monitor interface in real time, technics flow interface, operating parameters and status, and dynamic diplay of function buttons, history curve, real time curve, alarm, safety. To make the engineers and operaters grasping the field status in time, so as to control in real time.This system has successfully applied in Yingkou Xiangyang catalyst plant on March in 2006. The system has strong function, good control effect and generalizes application value through 8 months. This proves the schame designs properly and practically, which batch control by FCS. This paper makes valuable attempt for field-bus further application on the electric power, metallurgy, and chemical plant and so on.