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Inst Tools > Blog > Practical Questions > Questions on Allen-Bradley MicroLogix 1000 PLC

Questions on Allen-Bradley MicroLogix 1000 PLC

Suppose we have an Allen-Bradley MicroLogix 1000 PLC and two pressure switches we need to connect to it.

Last updated: February 12, 2021 9:35 pm
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Suppose we have an Allen-Bradley MicroLogix 1000 PLC and two pressure switches we need to connect to it.

Contents
Allen-Bradley MicroLogix  Programmable Logic ControllerAllen Bradley PLC Course

Allen-Bradley MicroLogix  Programmable Logic Controller

Questions on Allen-Bradley MicroLogix 1000 PLC

Determine the necessary contacts on each pressure switch (NO versus NC).

We need to connect to the PLC inputs in order to make the lamp turn on when pressure A exceeds 25 PSI and pressure B drops below 139 PSI, given the following program running in the PLC:

Allen-Bradley MicroLogix 1000 PLC Logic

Answer :

Both pressure switches need their normally-closed (NC) contact terminals connected to the respective PLC input terminals.

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Credits : by Tony R. Kuphaldt

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3 Comments
  • AVINASH SHINDE says:
    February 13, 2021 at 8:54 am

    Allen Bradly Micrologix 1000 PLC now obsolete Now Ab micrologix 1400 PLC is available.

    Reply
  • LESTA says:
    February 14, 2021 at 10:40 pm

    yez

    Reply
  • obert ende says:
    February 19, 2021 at 6:25 am

    I really enjoyed it

    Reply

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