介绍了可生产厚度为１．２ ｍ ｍ 的具有立轧机的六机架热带连轧机Ｓ７－４００ 系列计算机控制系统。给出了系统的硬件配置及控制软件的设计，阐述了立轧和平轧机之间的微张力控制方法以及轧机所采用的活套高度和力矩控制策略。并给出了与活套高度控制相关的速度设定自适应控制方案 The S7-400 series of computerized control systems for six-stand tandem rolling mills with vertical mills are presented for a thickness of 1.2 m m. The hardware configuration of the system and the design of the control software are given. The control method of the micro tension between the vertical rolling mill and the vertical rolling mill and the control method of the looper height and torque adopted by the rolling mill are described. The control scheme of speed setting related to looper height control is given