AT90S8535 (CPU) is a core of lower PC, RAM62256 (32K) is used as the data memory, and CAN bus protocol communication is used to realize the control to multi-fieldwork units.

• 下位机以AT90S8535为核心，RAM62256（32K）作为数据存储器，采用CAN总线协议通讯，实现对多个现场单元的控制。