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

Page 50

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5–6

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

Publication 1794Ć6.5.2 - May 1996

4 Output Analog Module (1794ĆOE4 Series B) Image Table

Mapping

Module Image

I/O Image

Analog Data Channel 0
Analog Data Channel 1
Analog Data Channel 2
Analog Data Channel 3

Not used
Not used
Not used
Not used

Not used

Not used

Not used

Not used

Not used
Not used
Not used
Not used

Diagnostics

Config. Select

Full Range

Input Size

Output Size

0 or 1 Word

1 to 6 Words

Read

Write

OE

PU

Analog Output Module (1794-OE4/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

PU

Not used - set to 0

W3

W2

W1

W0

Read Word 1

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.)

Analog Output Module (1794-OE4/B) Write

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 Data - Channel 0

Write Word 1

S

Analog Data - Channel 1

Write Word 2

S

Analog Data - Channel 2

Write Word 3

S

Analog Data - Channel 3

Write Word 4

Not used - set to 0

OE3 OE2 OE1 OE0

Write Word 5

Not used - set to 0

C3

C2

C1

C0

Not used - set to 0

F3

F2

F1

F0

Write Word 6

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