说明：  TVT-90系列可编程控制器训练装置由可编程序控制器主机、编程用计算机、电源模块、输入输出模块和16块模拟控制对象单元实验板组成。用实验连接导线将主机板上的有关部分与输入输出模块连接可完成指令系统训练，用实验连接导线将主机板与模拟实验板有关部分连接可以完成程序设计训练，用连接导线将主机与实际系统的部件连接可作为开发机使用，进行现场调试
(The training device of TVT-90 series programmable controllers consists of a host computer of programmable controllers, a computer for programming, a power supply module, an input and output module and 16 experimental boards of analog control units. The training of instruction system can be completed by connecting the relevant parts of the main board with the input and output modules through the experimental connecting wires. The programming training can be completed by connecting the relevant parts of the main board with the analog experimental board through the experimental connecting wires. The connecting wires between the main board and the components of the actual system can be used as the development machine for on-site debugging.)