TRICONEX 3531E PLC/DCS卡件模块

TRICONEX 3531E PLC/DCS卡件模块

PLC的结构分为整体式和模块式两种。

整体式结构把PLC的I/O和CPU放在一块大印刷电路板上，节省了播接环节，结构紧凑，体积小，每—/O点的平均价格也比模块式的便宜，所以小型PLC控制系统多采用整体式结构.模块式PLC的功能扩展，I/O点数的增减，输入与输出点数的比例，都比整体式方便灵活。

维修时更换模块，判断与处理故障快速方便因此，对于较复杂的要求较高的系统，一般选用模块式结构

The structure of PLC is divided into integral and modular two kinds.

The integrated structure puts the PLC I/O and CPU on a large printed circuit board, saving the broadcast link, compact structure, small size, and the average price per - /O point is cheaper than the modular type, so the small PLC control system uses the integrated structure. The functional expansion of modular PLC, the increase or decrease of I/O points, and the ratio of input and output points are more convenient and flexible than the whole.

Replace the module during maintenance, judge and handle the fault quickly and easily. Therefore, for more complex systems with higher requirements, the modular structure is generally selected