The utility model relates to a multifunctional programmable controller, in particular to an electronic system with digital operation, which is mainly used in the control unit of industrial environment and industrial automation equipment. The printed circuit board is installed in the body, the controller circuit is arranged on the printed circuit board, is characterized by the serial communication interface circuit of the controller and the central processing unit is connected to the power supply / reset circuit; and the central processing unit and the PF signal is sent to the upgrading circuit; data buffer unit and extended data buffer unit, input and output data buffer unit the data buffer unit, switching circuit, signal control circuit connected to upgrade; SWMODE unit sent to the state switching circuit, A15 / WE signal, the signal sent to the upgrading circuit. The utility model has the advantages of reduced volume, convenient for the user to replace the battery, wiring; with removable terminal blocks, increase online upgrade function and state of switch, convenient installation and maintenance of users; use of customer also brings great convenience.
【技术实现步骤摘要】
【技术保护点】
一种多功能可编程序控制器,采用印制板包括电源板(5)及I/O板(4)安装在本体(6)内,在印制板上设置控制器电路,端子台连接在输入输出I/O板(4)上,其特征是控制器电路采用电池/检测电路与中央处理单元相连,用于在正常工作时对超大容量电容进行充电,在电源掉电时,对存储单元中的随机存储器中的数据保护,检测电池电压,并告知中央处理单元;串行通讯口与中央处理单元相连,用于与外部设备进行通讯;电源/复位电路与中央处理单元以及PF信号送至升级电路,用于在上电/掉电时,给系统复位,检测到供电电源掉电时,将PF信号送给中央处理单元,以保护现场数据;存储单元与中央处理单元、数据缓冲单元、控制单元、显示控制单元相连,用于放置系统程序,放置用户程序以及现场数据;数据缓冲单元分别与扩展数据缓冲单元、输入数据缓冲单元、输出数据缓冲单元、状态切换电路、升级电路相连,用于实现输入/输出数据的缓冲;控制单元的信号SW_MODE送至状态切换电路,/WE信号、A15′信号送至升级电路,控制单元与显示控制信号相连,控制单元主要用于实现系统的译码/编码;显示控制单元与发光二极管阵列相连,用于控制发光二极管阵列的显示;扩展单 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:孔林海,荣文言,缪政,
申请(专利权)人:光洋电子无锡有限公司,
类型:实用新型
国别省市:32[中国|江苏]
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