RELIANCE ELECTRIC 10VV1/F7252全新到货PLC自动化备件

RELIANCE ELECTRIC 10VV1/F7252全新到货PLC自动化备件

RELIANCE ELECTRIC 10VV1/F7252全新到货PLC自动化备件

为了处理急需响应的输入信号，PLC有种种措施。不同的PLC措施也不完全相同，提高响应速度的效果也不同。一般的作法是采用输入中断，然后再输出即时刷新，即中断程序运行后，有关的输出点立即刷新，而不等到整个程序运行结束后再刷新。

这个效果可从两个方面来衡量:一是能否对几个输入信号作快速响应;二是快速响应的速度有多快。多数PLC都可对一个或多个输入点作快速响应;快速响应时间仅几个毫秒。性能高的、大型的PLC响应点数更多。

工作速度关系到PLC对输入信号的响应速度，是PLC对系统控制是否及时的前提。控制不及时，就不可能准确与可靠，特别是对一些需作快速响应的系统。这就是把工作速度作为PLC指标的原因。

RELIANCE ELECTRIC 10VV1/F7252全新到货PLC自动化备件

In order to process the input signals that require urgent response, the PLC has various measures. Different PLC measures are not exactly the same, and the effect of improving the response speed is also different. The general practice is to use the input interrupt, and then the output is refreshed immediately, that is, after the interrupt program runs, the relevant output point is refreshed immediately, rather than waiting for the entire program to run after the refresh.

This effect can be measured from two aspects: one is the ability to respond quickly to several input signals; The second is how fast the rapid response is. Most PLCS can respond quickly to one or more input points; The fast response time is only a few milliseconds. High performance, large PLC response points more.

The working speed is related to the PLC's response speed to the input signal, and is the premise of the PLC's timely control of the system. Without timely control, it is impossible to be accurate and reliable, especially for some systems that require rapid response. This is why the working speed is used as a PLC indicator.