The mnemonic PLC cade sequence for the ladder diagram below

The mnemonic PLC cade sequence for the ladder diagram below is.

Solution

The answer is Option B.

LODN IN1 # IN1 is in reset state. so LODNOT

AND IN2 # IN2@ is in series with IN1. so AND IN2

LD IN2 # Parallelly, IN2 is in start state. so LD IN2

ANDN IN3 # IN3 is in reset aswellas in series with IN2. so ANDNOT IN3

OR LD # Two sequences are parallel. so OR

STO OUT1 # the final output.