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Rockwell Automation 1794-IE4XOE2,1794-IE8,1794-OE4,D17946.5.2 FLEX I/O ANALOG MODULE User Manual

Page 53

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5–9

How Communication Takes Place and I/O Image Table Mapping with the DeviceNet Adapter

Publication 1794Ć6.5.2 - May 1996

Analog Combo Module (1794ĆIE4XOE2 Series B) Image Table

Mapping

Module Image

I/O Image

Input Data Channel 0
Input Data Channel 1
Input Data Channel 2
Input Data Channel 3

Output Data Channel 0
Output Data Channel 1

Underrange & Diag.

Not used
Not used
Not used
Not used
Not used

Not used

Not used

Full Range and Configure Select

Not used

Input Size

Output Size

0 to 4 Words

0 to 5 Words

Read

Write

OE

PU

Analog Combo Module (1794-IE4XOE2/B) Read

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

Read Words

S

Analog Value Input Channel 0

Read Word 1

S

Analog Value Input Channel 1

Read Word 2

S

Analog Value Input Channel 2

Read Word 3

S

Analog Value Input Channel 3

Read Word 4

PU

Not used - set to 0

W1 W0 U3

U2

U1

U0

Read Word 5

Where:

PU = Power up bit - included in series B modules only.

W = Diagnostic bits for current output wire broken or load resistance high. (Not used on voltage outputs.)

U = Underrange bits for 4Ć20mA inputs