企业实施CIMS系统中 ,管理计算机与底层设备的通讯是一个很重要的环节。以鞍钢新轧钢股份公司冷轧薄板厂计算机控制系统的硬件通讯为背景 ,探讨了LZ -CIMS与底层设备进行计算机通讯的设计与具体实现问题。其中重点研究了MIS系统与底层设备基础自动化级、过程级的网络结构设计与实现。现场应用结果表明该系统的设计方案是实现CIMS与底层设备通讯的可靠、经济、可行的方法 Enterprise CIMS implementation of the system, the management of computer communication with the underlying equipment is a very important part. Based on the hardware communication of the computer control system of cold-rolled sheet mill of Angang New Steel Co., Ltd., the design and implementation of computer communication between LZ-CIMS and the underlying equipment are discussed. Which focuses on the MIS system and the bottom of the basic automation equipment, process-level network structure design and implementation. The field application results show that the design of the system is a reliable, economical and feasible method to realize the communication between CIMS and the underlying equipment