Allen-Bradley Logix5000 Reference Manual

396 Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
Chapter 8 Array (File)/Misc. Instructions (FAL, FSC, COP, CPS, FLL, AVE, SRT, STD, SIZE)
Structured Text
SIZE(dint_array,1,length);
sum := 0;
FOR position = 0 TO (length-1) DO
sum := sum + dint_array[position];
END_FOR;
average := sum / length;
sum := 0;
FOR position = 0 TO (length-1) DO
sum := sum + ((dint_array[position] - average)**2);
END_FOR;
real_std := SQRT(sum / (length-1));

Allen-Bradley Logix5000 Specifications

General

Brand	Allen-Bradley
Model	Logix5000
Category	Controller
Language	English