JMP plc programming tutorial for you to take a look at and find out more about plc programming

PLC shows JMP and LBL directions Often in plc programming you want to control how the plc scanner acts. You might wish to allow it to transfer to different parts of the ladder diagram. For this we utilize JMP and LBL. LBL permits us to identify a specific called left wing and hand side and JMP enables us to specify a label which we desire to jump to. This is very much like how it operates in assembly language. It is essential to note that any rung which has a label and does not contain some kind of jmp direction somewhere might never ever be executed. So these rungs generally will be entirely ignored. It's always good practice to attempt and prevent this situation as jmp and lbl can make your ladder program truly unpleasant and hard to debug if things are jumping around all the time. http://plcprogramming.co.za