Mapping data into the image table – Rockwell Automation 1798-IB4 FlexArmor User Manual User Manual

Page 19

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Publication 1798-UM001B-EN-P - November 2002

How Communication Takes Place and I/O Image Table Mapping 2-5

Mapping Data into the
Image Table

All FlexArmor modules are supported by the DeviceNet adapter. At
present, these consist of:

Description of 1798-IB4 Image Table Mapping

Memory Map of 4 Point Discrete Input Module Image Table - 1798-IB4

Module Description

Catalog Number

For image table
mapping refer to:

4 Sinking Input Module

1798-IB4

2-5

4 Sinking Input
Diagnostic Module

1798-IB4D

2-6

8 Sinking Input Module

1798-IB8

2-7

4 Electronically Fused
Sourcing Output Module

1798-OB4E

2-8

8 Electronically Fused
Sourcing Output Module

1798-OB8E

2-9

4 Analog Input Module

1798-IE4

2-9

2 Analog Output Module

1798-OE2

2-12

I/O Image
Input Size

Module Image

1 or 2 Words

0 or 1 Word

Read

Write

Output Size

Inputs

Delay
Time

Not used

Reserved

Fault
Input

Fault
Enabled

Reserved

Reserved

42840

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

D3

D2

D1

D0

Read Word 1

Not used

FO

Read Word 2

Reserved

FE

Reserved

DT 00-3

Write Word 1

Where D = Input Data (D0 corresponds to input 0, D1 corresponds to input 1, etc.), DT = Input Delay Time (DT 00-3
corresponds to inputs 0 through 3), FO = Fault Bit - Indicates status of module sensor power (0=Normal, 1=Sensor Power
Shorted), FE = Fault Enabled Bit, must be set to return fault bit (FO) from module. The “Fault Enabled” bit will be set
automatically if the input filter times are configured through RSNetWorx for DeviceNet.

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