IC693CPU350 

输出刷新阶段

当扫描用户程序结束后，可编程逻辑控制器就进入输出刷新阶段。在此期间，CPU按照I/O映象区内对应的状态和数据刷新所有的输出锁存电路，再经输出电路驱动相应的外设。这时，才是可编程逻辑控制器的*输出。

功能特点：可编程逻辑控制器具有以下鲜明的特点。

1、系统构成灵活，扩展容易，以开关量控制为其特长；也能进行连续过程的PID回路控制；并能与上位机构成复杂的控制系统，如DDC和DCS等，实现生产过程的综合自动化。

2、使用方便，编程简单，采用简明的梯形图、逻辑图或语句表等编程语言，而无需计算机知识，因此系统开发周期短，现场调试容易。另外，可在线修改程序，改变控制方案而不拆动硬件。

3、能适应各种恶劣的运行环境，*干扰能力强，可靠性强，远高于其他各种机型。

IC693CPU350  

IC693CPU350 

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