ABB PM151 3BSE003642R1 模块 控制器

ABB PM151 3BSE003642R1 模块 控制器

ABB PM151 3BSE003642R1 模块 控制器

I/O点数估算时应考虑适当的余量，通常根据统计的输入输出点数，再增加10%~20%的可扩展余量后，作为输入输出点数估算数据。实际订货时，还需根据制造厂商可编程逻辑控制器的产品特点，对输入输出点数进行圆整。

存储器容量是可编程序控制器本身能提供的硬件存储单元大小，程序容量是存储器中用户应用项目使用的存储单元的大小，因此程序容量小于存储器容量。

设计阶段，由于用户应用程序还未编制，因此，程序容量在设计阶段是未知的，需在程序调试之后才知道。为了设计选型时能对程序容量有一定估算，通常采用存储器容量的估算来替代。

存储器内存容量的估算没有固定的公式，许多文献资料中给出了不同公式，大体上都是按数字量I/O点数的10~15倍，加上模拟I/O点数的100倍，以此数为内存的总字数(16位为一个字)，另外再按此数的25%考虑余量。

PLC在实现各种数量的I/O控制的同时，还具备输出模拟电压和数字脉冲的能力，使得它可以控制各种能接收这些信号的伺服电机，步进电机，变频电机等，加上触摸屏的人机界面支持，施耐德的PLC可以满足您在过程控制中任何层次上的需求。

ABB PM151 3BSE003642R1 模块 控制器

I/O point estimation should consider the appropriate margin, usually according to the statistical input and output points, and then increase the expandable margin of 10% to 20%, as the input and output point estimation data. When actually ordering, it is also necessary to round out the input and output points according to the product characteristics of the manufacturer's programmable logic controller.

The memory capacity is the size of the hardware storage unit that can be provided by the programmable controller itself, and the program capacity is the size of the storage unit used by the user application project in the memory, so the program capacity is less than the memory capacity.

In the design phase, because the user application has not yet been written, the program capacity is unknown in the design phase and needs to be known after the program debugging. In order to have a certain estimation of program capacity during the design and selection, the estimation of memory capacity is usually used instead.

There is no fixed formula for the estimation of memory memory capacity, and different formulas are given in many literatures, which are generally 10 to 15 times the number of digital I/O points, plus 100 times the analog I/O points, and this number is the total number of words in memory (16 bits for a word), and then consider the margin according to 25% of this number.

PLC in the realization of a variety of I/O control at the same time, but also has the ability to output analog voltage and digital pulse, so that it can control a variety of can receive these signals of servo motors, stepper motors, variable frequency motors, etc., coupled with the touch screen human-machine interface support, Schneider PLC can meet your needs at any level of process control.