ABB PLC comparison instruction : EQ, NE, LT, LE, GE and GT

comparison instruction compare two numerical value, output is true if the comparison result is true. abb have equal to (EQ), Not equal to (NE), less than (LT), less than or equal to (LE), greater than (GT) and greater than or equal to(GE). each comparison instruction have two inputs and one output. input 1 is compared with input 2 if the result of comparison is true output is true otherwise output is false. comparison instruction use when we want compare two values. for example if we want to compare maximum current of motor so we need a greater than comparison instruction. in comparison instruction both input's numerical values. and output is bool type. output have only two condition either true or false.

ABB PLC equal to comparison instruction

EQ is a abb plc equal to comparison instruction, it compare both inputs if both inputs value is equal than comparison result output is true otherwise output is false. below is the example of equal to comparison instruction for abb plc.

ABB PLC not equal to comparison instruction

NE is a not equal to comparison instruction in abb plc. this instruction compare two inputs value if both input is not equal than output is true otherwise output is false. below is the example if not equal to comparison instruction in abb plc.

ABB PLC greater than comparison instruction

GT is greater than comparison instruction if the input 1 is greater than input 2 than output is true otherwise output is false. below is the example of greater than comparison instruction in abb plc.

ABB PLC greater than or equal to comparison instruction

GE is greater than or equal to comparison instruction if input 1 is greater than or equal to input 2 than output is true otherwise output is false. below is the example of greater than or equal to comparison instruction in abb plc.

ABB PLC less than comparison instruction

LT is less than comparison instruction if the input 1 is less than to input 2 than output is true otherwise output is false. below is the example of less than comparison instruction in abb plc.

ABB PLC less than or equal to comparison instruction

LE is less than or equal to comparison instruction if input 1 is less than or equal to input 2 than output is true otherwise output is false. below is the example of less than or equal to comparison instruction in abb plc.