Home » Programmable Logic Controller (PLC) Questions and Answers – 8
Practical Questions

Programmable Logic Controller (PLC) Questions and Answers – 8

Programmable Logic Controller (PLC) Questions and Answers –

Suppose we have an Allen-Bradley MicroLogix 1000 controller connected to three pushbutton switches as shown in this illustration:

Allen-Bradley MicroLogix PLC Wiring

Determine the necessary switch actuation statuses (i.e. pressed versus unpressed) to turn the lamp on given the following program running in the PLC:

AB PLC Logic

Answer :

Necessary switch statuses:

  • Switch A = pressed
  • Switch B = pressed
  • Switch C = released

Share Your Answer / Comments

Credits :  Tony R. Kuphaldt – under CC BY 1.0

For More PLC Questions : CLICK HERE

 

Share With Your Friends

Related Articles

Determine the Problems with Level Transmitter and Gauge

S Bharadwaj Reddy

PLC Electric Motor Interlocks

S Bharadwaj Reddy

Programmable Logic Controller (PLC) Questions and Answers – 6

S Bharadwaj Reddy

DP transmitter Elevated 10 Feet above the Vessel

S Bharadwaj Reddy

DP Transmitter Block and Bleed Valves

S Bharadwaj Reddy

How much Pressure will Remote Seal Pressure Transmitter Indicate?

S Bharadwaj Reddy

Leave a Comment

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More

Programmable Logic Controller (PLC) Questions and Answers - 8

WordPress Image Lightbox
Send this to a friend