作者研制的打叶复烤预压打包生产线分布式测控系统成功地实现了烟包重量高精度检测和预压、复称、打包各环节生产节拍的自动控制.本文介绍了该系统的组成和工作原理,阐述了作为从机的称重装置中主要的接口电路和实现多机通信所采用的方法. The distributed measurement and control system developed by the author, which is used in the pre-baling pre-compression baling production line, has successfully realized the automatic control of the high-precision detection of the weight of a cigarette packet and the production tactics of the pre-baling, complex baling and packaging, etc. The paper introduces the composition and work of the system Principle, elaborates the main interface circuit in the weighing device as the slave and the method used to realize the multi-machine communication.