可编程控制器I/O功能的扩展

Functional Enlarge of the Programmable Controller of I/O

用户根据受控制系统的I/O点数的多少来选择PC主机的I/O点数,当主机的I/O点数少于受控制系统的I/O点数时,我们就要重新选择I/O点数更多的PC主机,或者在原主机的基础上增加扩展单元来满足控制要求。结合间歇聚酯厂切片生产的过程控制,介绍一种在不改变PC主机和不增加扩展单元的情况下,实现扩展PC主机的输出点数的方法。

Users choose the PC main frame s I/O points upon the number of controlled system s I/O points, when PC main frame s I/O points less than controlled system s I/O points, we must anew choose more I/O points PC main frame, or on the primary main frame base increase enlarge units to fill the control require. Now couple the intermission polyester factory produce chips s procedure control, on the condition of not to change the main computer and raise enlarge units,a kind of method is good that can enlarge PC's output spots.