| With the rapid development of hardware and software technology, computer technology in the field of industry control has taken great place, with persistent high reliability and high price. Distributed control system (DCS), with the characteristic of centralization of its management and the distribution of its functions, burthen and malfunction, is used widely in the process of modern industry, and become one of the most active branch.MSCIS(Marine Simulation & Control Interface System) is a set of distributed intelligent Input/Output interface control system developed for the modern marine engine simulator. It realizes the data conversion and transport of simulation system interface between computer and control panel or other hardware. It succeeds to the characteristic and strongpoint of DCS, and adopts distribution pattern, which composes of one upside host computer and some downside I/O interface crates. The upside host computer fasten on controlling each downside I/O interface crate on the communication chain, and downside I/O interface crates directly connect with control panel or other hardware devices and dispersedly control each input and output channels of the interface system. The downside I/O function cards in the interface crate support four types of I/O channel, and each function card works independently. If one I/O channel emerges malfunction, it will not impact normal work of other I/O channel.MSCIS interface system is provided with complete function, flexible configuration, many I/O interface dots, good real time, high dependability, high replantation ability and high ratio of capability to price. Besides, it can be used in the field of other system simulation projects and industry control project. The research on MSCIS intellectualization interface control system is an attempt to study independently distributed interface system. That not only improves the ability to develop modern marine engine simulator I/O interface system but also decreases the hardware cost of simulator system, what's more, it contributes to realize independent research on all the simulator system, and has great realistic meaning and economic meaning.This paper is based on developing the high-speed intelligent control cardabout CAN bus of MSCIS interface system and analog output card. The entire tasks are divided into hardware designing and software programming of the MSCIS interface system. The main process of the development on system is as follows:1. Firstly, apply Protel99 software to design the SCH chart of the high-speed intelligent control card and analog output card, secondly, design PCB charts and send them to the factory.2. To debug on the hardware, eliminate circuitry errors, and test on every chip.3. To program assemble language control software of the analog output card and control card, and debug on the SUPER ICE 16 simulator.4. To utilize the SUPER ICE 16 simulator to link card to debug the control programs of the analog output card and the high-speed intelligent control card online and to test on the CAN bus communication;5. To Embed the control program debugged successfully into EPROM, and debug the system on EPROM;6. To debug offline the analog output card, the main control card, and CAN bus data communication.This paper introduces hardware and software technology and design experience from the structure and principium of the intellectualization MSCIS interface control system. On the aspect of hardware, it refers to the hardware circuit design of the high-speed control card and the analog output card, anti-jamming technology, chip software programming, and hardware upgrade project; on the aspect of software technology, it relates to the design idea of program frame modularization and using ASM96 assembly language to compile system software including main program and communication interrupt service program and controlling output program.
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