Describe the operation of a drum switch

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1. Describe the operation of a drum switch.

2. What type of operations are sequencers most suitable for?

3. Why are PLC sequencers easier to program than PLC discrete outputs?

4. Answer the following with regard to an SLC 500 PLC sequencer output instruction:

a. Where is the information for each sequencer step entered?

b. What is the function of the output word?

c. Explain the transfer of data that occurs as the sequencer is advanced through its various steps.

Reference no: EM131371690

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