Allen-Bradley 1770-M11 User Manual download pdf (Page 15)

SLC 500™ Chassis–Based Processors 15

Publication 1747-2.39

Comparison Instructions

Instruction Mnemonic

and Name

Execution Times (µs)

Floating Point

(µs)

Function -

Conditional (Input) Instructions

SLC 5/01 SLC 5/02 SLC 5/03

SLC 5/04

SLC 5/05

EQU Equal 60 38 1.25/12.94 1.12 / 12.5 Instruction is true when source A = source B.

NEQ Not Equal 60 38 1.25 / 13.25 1.12 / 12.18

Instruction is true when source A

source B.

LES Less Than 60 38 1.25 / 13.19 1.12 / 13.94 Instruction is true when source A < source B.

LEQ Less Than or

Equal

60 38 1.25 / 13.19 1.12 / 13.93 Instruction is true when source A <

source B.

GRT Greater Than 60 38 1.25 / 14.82 1.12 / 12.62 Instruction is true when source A > source B.

GEQ Greater Than or

Equal

60 38 1.25 / 14.81 1.12 / 14.31 Instruction is true when source A > source B.

MEQ Masked

Comparison for Equal

75 47 38 22.75

Compares 16–bit data of a source address to

16–bit data at a reference address through a

mask. If the values match, the instruction is

true.

LIM Limit Test - 45 1.95 / 22.81 1.68 / 20.19

True/false status of the instruction depends on

how a test value compares to specified low

and high limits.

a.Floating point times do not apply to SLC 5/03 OS300 processors.

b.When only one Execution Time is listed for an instruction, Floating Point does not apply.

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Allen-Bradley 1770-M11 User Manual Page 15