Digital logic design problem

Discussion in 'General Electronics Chat' started by goldriver, Oct 18, 2011.

Thread Status:
Not open for further replies.
  1. goldriver

    Thread Starter New Member

    Oct 18, 2011
    5
    0
    In an industrial unit four motors M1, M2, M3 & M4 are in operation .The system in
    Figure below consists of four manual on/off switches S1, S2 , S3 & S4 (to turn on /off
    motors respectively) And control logic and motor drive interface. Design a control logic
    that performs the following operation
    • All motor are not allowed to work at the same time.
    • Motors M1, M2, M3 are allowed to work at the same time.
    • Motors M2 & M4 cannot be operated at the same time.
    • Single motor can be operated.
    • Motors M3 & M4 cannot be operated at the same time.
    • Motors M1 & M4 can work at the same time.
    • Consider all other cases don’t care except the above.
    • Remember that the controller must shut down all motors for the conditions that
    are not allowed.
    Please draw or write
    1. Truth Table
    2. Circuit Diagram
    3. Optimal Circuit
    4. Problem you faced

    How to start solving this problem? please help! urgent
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Start by drawing the truth table.

    Why is this urgent? Have you been putting this homework off, and it's due now?

    This should have been posted in the Homework Help forum.
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
Loading...
Thread Status:
Not open for further replies.