Control the Counting of the Repeated Impact Fatigue with the PLC System.

In order to count the number of impacting of the collision, we adopt PLC to control the electromagnetic valve to achieve counting. According to the flexible expansion capability of PLC, we use I/O card to directly connect in the bus of soft PLC computer, which can make the software and hardware up to combine the controlling of human-machine and the performance of the PLC. It can conveniently expanse the facility and communicate between human and machine. [ABSTRACT FROM AUTHOR]