Hello people, I'm a novice to PLC programming so be aware that some questions might be silly beyond any limits. I cannot find the explication for this instruction (actually for the parameter word P1). I can see it's formed of 4 words but which one is what. I need it to convert the 4-20mA signal into 4000 increments which will measure the conductivity/concentration. General idea was that Source word is conductivity (in increments) and result word is concentration (two of them, separate, one for acid and the other for alkali).