Mapping data into the image table – Rockwell Automation 1794-IF4I, -OF4I, IF2XOF2I, -IF4IXT, -IF4ICFXT, -OF4IXT, IF2XOF2IXT FLEX I/O Isolated Analog Modules User Manual

Page 79

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Publication 1794-6.5.8 - January 2010

Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 79

Mapping Data into the
Image Table

FLEX I/O analog modules are supported by the DeviceNet adapter.

4 Input Isolated Analog Module (Cat. No. 1794-IF4I) Image Table
Mapping

Module Description

Catalog
Number:

For image table mapping refer to:

4 Input Isolated Analog Module

1794-IF4I

page 5-79

4 Output Isolated Analog Module

1794-OF4I

page 5-86

2 in/2 out Isolated Analog Combo Module

1794-IF2XOF2I

page 5-91

Module Image

I/O Image

Input Data Channel 0

Input Data Channel 1

Input Data Channel 2

Input Data Channel 3

Input Size

Output Size

0 to 8 Word

1 to 7Words

Real Time Sample

PU FP CF

BD DN

Underrange

Overrange

Channel Filters

Channel Configuration

Real Time Sample Programmed Interval

IC

RV QK CK GO

Channel #

Set to 0

EN

1

Not used

Not used

Not used

TR IT

Table 5.1

Analog Input Module (1794-IF4I, 1794-IF4ICFXT) Read

Word/Dec. Bit

15

14

13 12

11

10

09

08

07

06

05

04

03

02

01

00

Word/Octal Bit

17

16

15 14

13

12

11

10

07

06

05

04

03

02

01

00

Read Word 1

Analog Value Channel 0

Word 2

Analog Value Channel 1

Word 3

Analog Value Channel 2

Word 4

Analog Value Channel 3

Word 5

Real Time Sample

Word 6

PU

FP

CF 0

Reserved

0

0

0

0

0

BD

DN

0

Word 7

0

0

0

0

0

0

0

0

V3

V2

V1

V0

U3

U2

U1

U0

Where:
PU = Power up unconfigured state
FP = Field power off
CF = In configuration mode

BD = Calibration bad
DN = Calibration accepted
U = Under range for specified channel
V = Overrange for specified channel

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