Module addressing, Module addressing -3, Class 1 memory map -3 – Rockwell Automation 1746-NI16V SLC 500 Analog Input Modules User Manual User Manual

Page 39

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Publication 1746-UM001A-US-P

Preliminary Operating Considerations 4-3

Module Addressing

The following memory maps show you how the input image and
output image tables are defined for Class 1 and Class 3.

Class 1 Memory Map

SLC 5/0X

Data Files

Slot e

Output Image

Slot e

Input Image

Output Scan

Input Scan

Analog Input Module

Image Table

Output Image 8

Words

Input Image 8

Words

Bit 15

Bit 0

Output

Image

Input

Image

(Class 1)

Bit 15

Bit 0

Address

Channel 0 or 8 Configuration

Channel 1 or 9 Configuration

Channel 2 or 10 Configuration

Channel 3 or 11 Configuration

Channel 4 or 12 Configuration

Channel 5 or 13 Configuration

Channel 6 or 14 Configuration

Channel 7 or 15 Configuration

Channel 0 or 8 Data or Status Words

Channel 2 or 10 Data or Status Words

Channel 3 or 11 Data or Status Words

Channel 4 or 12 Data or Status Words

Channel 5 or 13 Data or Status Words

Word 0

Word 1

Word 2

Word 3

O:e.0

O:e.1

O:e.2

O:e.3

Word 7

O:e.7

Word 0

Word 1

Word 2

Word 3

Word 4

Word 5

Word 6

Word 7

I:e.0

I:e.1

I:e.2

I:e.3

I:e.4

I:e.5

I:e.6

I:e.7

Address

Word 4

O:e.4

Word 5

O:e.5

Word 6

O:e.6

Channel 7 or 15 Data or Status Words

Channel 6 or 14 Data or Status Words

Channel 1 or 9 Data or Status Word

s

NOTE

The 8 output image words can either configure
channels 0 to 7 or 8 to 15 depending on how bit 0 is
set.

The 8 input image words show either data or status
for channels 0 to 7 or 8 to 15. Bits 0 and 1 in the
configuration word determine whether status or data
is shown.

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