Questions: For the given ladder program following switches are used to provide input. Switch A is Normally Closed (momentary) connected to <Local:2:I.Data[1].0> Switch B is Normally Open (momentary) connected to < Local:2:I.Data[1].1> Switch C is Normally Closed (momentary) connected to < Local:2:I.Data[1].2> Motor is the output connected to < Local:2:O.Data[0].0> Determine the switch actuation statuses (i.e. pressed vs unpressed) to turn <Local:2:O.Data[0].0> Switch A-released Switch B-pressed Switch C-pressed Switch A-pressed Switch B-pressed Switch C-released Switch A-released Switch B-released Switch C-pressed Switch A-pressed Switch B-released Switch C-pressed

For the given ladder program following switches are used to provide input. Switch A is Normally Closed (momentary) connected to <Local:2:I.Data[1].0> Switch B is Normally Open (momentary) connected to < Local:2:I.Data[1].1> Switch C is Normally Closed (momentary) connected to < Local:2:I.Data[1].2> Motor is the output connected to < Local:2:O.Data[0].0> Determine the switch actuation statuses (i.e. pressed vs unpressed) to turn <Local:2:O.Data[0].0> Switch A-released Switch B-pressed Switch C-pressed Switch A-pressed Switch B-pressed Switch C-released Switch A-released Switch B-released Switch C-pressed Switch A-pressed Switch B-released Switch C-pressed
Transcript text: For the given ladder program following switches are used to provide input. Switch A is Normally Closed (momentary) connected to Switch B is Normally Open (momentary) connected to < Local:2:I.Data[1].1> Switch C is Normally Closed (momentary) connected to < Local:2:I.Data[1].2> Motor is the output connected to < Local:2:O.Data[0].0> Determine the switch actuation statuses (i.e. pressed vs unpressed) to turn Switch A-released Switch B-pressed Switch C-pressed Switch A-pressed Switch B-pressed Switch C-released Switch A-released Switch B-released Switch C-pressed Switch A-pressed Switch B-released Switch C-pressed
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Solution

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Solution Steps

Step 1: Understand the Switch Configurations
  • Switch A: Normally Closed (NC)
  • Switch B: Normally Open (NO)
  • Switch C: Normally Closed (NC)
Step 2: Analyze the Ladder Diagram
  • The motor will be activated if there is a continuous path of logic 1 from left to right.
  • For the motor to be on, all switches in the path must be in a state that allows current to flow.
Step 3: Determine the Required Switch States
  • Switch A (NC): Must be released (not pressed) to allow current to flow.
  • Switch B (NO): Must be pressed to allow current to flow.
  • Switch C (NC): Must be released (not pressed) to allow current to flow.

Final Answer

  • Switch A: Released
  • Switch B: Pressed
  • Switch C: Released

Therefore, the correct option is:

  • Switch A-released Switch B-pressed Switch C-released
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