Standard ladder logic elements, continued – Schneider Electric Processor Adapter User Manual

Page 408

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Ladder Logic Elements and Instructions

408

870 USE 101 10 V.2

Standard Ladder Logic Elements, Continued

Standard Ladder
Logic
Instructions,
Continued

Continued on next page

Symbol

Meaning

Nodes Consumed

DX Matrix Instructions

AND

Logically ANDs two matrices

3

OR

Does logical inclusive OR of two matrices

3

XOR

Does logical exclusive OR of two matrices

3

COMP

Performs logical complement of values in a matrix

3

CMPR

Logically compares values in two matrices

3

MBIT

Logical bit modify

3

SENS

Logical bit sense

3

BROT

Logical bit rotate

3

AD16

Signed/unsigned 16-bit addition

3

SU16

Signed/unsigned 16-bit subtraction

3

TEST

Compares the magnitudes of the values in the top and
middle nodes

3

MU16

Signed/unsigned 16-bit multiplication

3

DV16

Signed/unsigned 16-bit division

3

ITOF

Signed/unsigned integer-to-floating point conversion

3

FTOI

Floating point-to-signed/unsigned integer conversion

3

EMTH

Performs 38 math operations, including floating point
math operations and extra integer math operations
such as square root

3

Ladder Logic Subroutine Instructions

JSR

Jumps from scheduled logic scan to a ladder logic
subroutine

2

LAB

Labels the entry point of a ladder logic subroutine

1

RET

Returns from the subroutine to scheduled logic

1

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