Logix5000 Controllers General Instructions - SLAC Confluence

Array (File)/Misc. Instructions (FAL, FSC, COP, CPS, FLL, AVE, SRT, STD, SIZE) 333The following timing diagram shows the relationship between statusbits and instruction operation. When the instruction execution iscomplete, the .DN bit is set. The .DN bit, the .EN bit, and the .POSvalue are cleared when the rung-condition-in is false. Only then cananother execution of the instruction be triggered by a false-to-truetransition of rung-condition-in.onescanrung-condition-in.EN bit.DN bitclears status bits andclears .POS valuescan of the instructionoperation completeno execution occurs40010Numerical modeNumerical mode distributes the array operation over a number ofscans. This mode is useful when working with non-time-critical dataor large amounts of data. You enter the number of elements tooperate on for each scan, which keeps scan time shorter.Publication 1756-RM003I-EN-P - January 2007