Logix5000 Controllers General Instructions - SLAC Confluence

Sequencer Instructions (SQI, SQO, SQL) 427Description:When enabled, the SQO instruction increments the position, movesthe data at the position through the Mask, and stores the result in theDestination. If .POS > .LEN, the instruction wraps around to thebeginning of the sequencer array and continues with .POS = 1.Typically, use the same CONTROL structure as the SQI andSQL instructions.The SQO instruction operates on contiguous memory.Enter an Immediate Mask ValueWhen you enter a mask, the programming software defaults todecimal values. If you want to enter a mask using another format,precede the value with the correct prefix.PrefixDescription16# hexadecimalfor example; 16#0F0F8# octalfor example; 8#162# binaryfor example; 2#00110011Arithmetic Status FlagsFault Conditions:not affectednoneExecution:Conditionprescanrung-condition-in is falseRelay Ladder ActionThe .EN bit is set to prevent a false load when the program scan begins.The rung-condition-out is set to false.The .EN bit is cleared.The rung-condition-out is set to false.Publication 1756-RM003I-EN-P - January 2007