Works exactly like a for do loop in higher programming language but used in ladder logic

SCALE_AI Add on instruction converts raw value from Analog Input channel to engineering value and in addition presents several alarms based on user configuration, including Hi, HiHi, Lo and LoLo Alarms.

IC_MOV_2P Add On Instruction can be used for the control of 02-Poisition (Open/) motorized valve. In addition to the full control of motorized valve , this instruction generates Failure Alarms to enable device diagnostics and allow plant operators to perform maintenance if the valve is jammed or locked.