PLC What is a PLC Analog and Digital PLC Programming Languages Basic Logic Functions Combinatorial Logic PLC Exercises I wire break detection Algebraic Simplification of Logic Circuits PLC I YouTube Learnchannel Check Yourself! Which statement about the function of this PLC program is correct? PLC – 2 from 3 circuit The warning light only lights up if 2 temperature sensors give a high-signal. The warning light only lights up when all three temperature sensors give a high-signal. The warning light only lights up if all 3 temperature sensors give high-signal. The warning light is active if at least two of the three temperature sensors give high-signal. The warning light only lights up if the temperature sensor B2 gives a high-signal. Which statement about the following logical function is correct? Interlocking Outputs in PLC The pump can be switched on when a High-signal is applied to I0. I0 and I1 can never have a 1-signal at the same time. Pump and valve cannot be switched on at the same time. The valve must be open when a High-signal is applied to I1. The valve opens when the pump is in operation. A fan should run (Q1 = 1) when the main switch is actuated (S = 1), the temperature sensor (bimetal) reports overtemperature (T = 0) and the motor is running (S2 = 1). Which logical function can be applied to this task? PLC Ladder 2 Program 5 Program 1 Program 3 Program 4 Program 2 The output should only switch to state “1” if only one input has a logical “1” at a time. Which logical function do you have to use here? XOR NOR NAND OR XNOR NOR Which logical function is represented in this truth table? AND NOR XNOR XOR NAND Loading … < Previous Page | Next Page >
