Function block diagrams

Ladder diagram

Define LAD?

Define FBD?

Function block diagram

break contact

Which block represents NOT function in LAD?

series connection

Which connection represents AND function in LAD?

Parallel connection

Which connection represents OR function in LAD?

AND gate

Which function block could be used for an escalator to start only when the pushbutton is pressed and the sensor detects a person?

OFF delay timer

Which function block helps you to set a delay in turning off a motor?

ON delay timer

Which function block helps you to set a delay in turning on the lamp?

OR gate

Which function block helps you when you have multiple options to start a system?

NOT gate

Which function block is a must in programs while you are dealing with normally close pushbutton?

Up/down counter

Which function helps you to count the number of cars in a parking?

RS latch

Which is the memory function in the PLC?