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Ladder Logic Exercise

Please redraw the equivalent ladder logic diagram used to implement the hardwired circuit drawn in figure 5-48 (see attachment), wired using:
a. A limit switch with a single NO contact connected to the PLC input module.
b. A limit switch with a single NC contact connected to the PLC input module.

Assuming the hardwired circuit drawn in Figure 5-49 (see attachment) is to be implemented using a PLC program, identify all devices that could be programmed using internal relay instructions.

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This is the redrawn equivalent ladder logic diagram.
LS1 ...

Solution Summary

This solution is a redraw equivalent ladder logic diagram, which is based on a hardwired circuit specified. Other implications of a hardwired circuit are also outlined, being devices that could be programmed using internal relay instructions.

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