Rockwell Automation 1798-IB4 FlexArmor User Manual User Manual

Page 23

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Publication 1798-UM001B-EN-P - November 2002

How Communication Takes Place and I/O Image Table Mapping 2-9

Description of 1798-OB8E Image Table Mapping

Memory Map of 8 Point Discrete Output Module Image Table - 1798-OB8E

Description of 1798-IE4 Image Table Mapping

I/O Image
Input Size

Module Image

0 or 1 Word

1 Word

Read

Write

Output

Not Used

Fault Bits

Reserved

Outputs

42824

Decimal
Bit

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

Size

Octal Bit

17

16

15

14

13

12

11

10

07

06

05

04

03

02

01

00

Not used

F7

F6

F5

F4

F3

F2

F1

F0

Read Word 1

Reserved

O7

O6

O5

O4

O3

O2

O1

O0 Write Word 1

Where O = Output Value (O0 corresponds to output 0, O1 corresponds to output 1, etc.)
F0-F7 = Indicate the status of each output point (0=Output normal, 1=Output faulted)

I/O Image

Module Image

Input Size

Input Data Channel 0

1 to 9 Words

Input Data Channel 1

Input Data Channel 2

Input Data Channel 3

Not Used

Not Used

Not Used

Not Used

PU

Underrange

Configure Select

Output Size

Not Used

0 to 1 Word

Not Used

Not Used

Not Used

Not Used

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