Example 11 | Fluid pumping process | PLC Programming

Описание: The process involves pumping fluid from tank A to tank B. The operation of the process can be summarized as follows: Before starting, PS1 must be closed.
When the start button is pushed, the pump starts. The button can then be released and the pump continues to operate.
When the stop button is pushed, the pump stops.
PS2 and PS3 must be closed 5 s after the pump starts. If either PS2 or PS3 opens, the pump will shut off and will not be able to start again for another 14s.

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