Rockwell Automation 1785-LTx,D17856.2.1 Classic PLC-5 Programmable Controllers Users Manual - Manual (Page 126)

Calculating Program Timing
Chapter 9
9-9
Category Words of
Memory 2
Execution Time ( µ s)
Floating Point
True False
Execution Time ( µ s)
Integer
True False
Title Code
Arithmetic ADD add 36 14 92 14 4Ć7
SUB subtract
MUL multiply 41 14 98
DIV divide 49 14 172
SQR square root 82 14 212 14 3Ć5
NEG negate 28 14 36
CLE clear 18 14 23 14 2Ć3
TOD convert to BCD 52 14 3Ć5
FRD convert from BCD 44
Logic AND and 36 14 4Ć7
OR or
XOR exclusive or
NOT not 27 14 3Ć5
Move MOV move 26 14 35 14
MVM masked move 55 14 6Ć9
Comparison EQU equal 32 14 42 14 3Ć5
NEQ not equal
LES less than
LEQ less than or equal
GRT greater than
GEQ greater than or equal
LIM limit test 42 14 60 14 4Ć7
MEQ mask compare if equal 41 14
2
Use the smaller number if all addresses are below word 4096; use the larger number if all addresses are above 4096.