The MUL, also known as the multiply, is an instruction which will perform a mathematical multiplication of two integers or floats. This mathematical instruction will be executed upon the registers specified in “Source A” and “Source B” and have the result stored within the register specified in the “Dest” field. This is a fundamental PLC instruction which is frequently used for scaling purposes. This need arises quite frequently when dealing with analog signals.
This is a companion discussion topic for the original entry at https://www.solisplc.com/tutorials/plc-programming-computational-mathematical-instructions-mul-multiply