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English Translations » 历史存档[信息] » The issue of implementing a ladder diagram for a design

The issue of implementing a ladder diagram for a design

2016-11-20View Original

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RT. . . There are two float level switches: one for high level detection, LSH01, and the other for low level detection, LSL01. There is also a bypass switch, Switch; when the high level alarm is triggered, the PLC system issues a command to open valve XV001 ； When a low liquid level is detected, the system issues a command to close the valve ； Moreover, when the bypass switch is in the activated state, the valve is forced to open regardless of the liquid level. Could someone please **draw a ladder diagram for this and provide explanations? Also, draw a logic diagram as well

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Translated at 2026-07-20 22:57:23

Original: https://bbs.hcbbs.com/thread-1643705-1-1.html

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