Input array – Rockwell Automation 1769-ADN Compact I/O 1769-ADN DeviceNet Adapter User Manual

Page 46

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Publication 1769-UM001B-EN-P - October 2002

2-22 How Communication Takes Place and I/O Image Table Mapping

Input Array

The Input Array, which consists of 35 words, allows read-only access
to the module’s input data via word and bit access.The Input Array is
described below. The functions are described in more detail in the
sections following the table.

20

Range12To15[1].OutputControl

Range Output Control

21

Not Used

Inv

Not Used

LDW Type

Not Used

ToThisCtr

Range Configuration
Flags

22

Range12To15[2].HiLimOrDirWr

Range High Limit or
Direct Write Value

23

24

Range12To15[2].LowLimit

Range Low Limit

25

26

Range12To15[2].OutputControl

Range Output Control

27

Not Used

Inv

Not Used

LDW Type

Not Used

ToThisCtr

Range Configuration
Flags

28

Range12To15[3].HiLimOrDirWr

Range High Limit or
Direct Write Value

29

30

Range12To15[3].LowLimit

Range Low Limit

31

32

Range12To15[3].OutputControl

Range Output Control

33

Not Used

Inv

Not Used

LDW Type

Not Used

ToThisCtr

Range Configuration
Flags

Word

Bit

Function

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

IMPORTANT

During the non-run states (program and fault), the
module continues to update the Input Array
(continues counting, etc). Depending on the bus
master, you may not see this.

TIP

Status bits for a particular counter reflect the
configuration settings for that counter. To receive
valid status, the counter must be enabled and the
module must have stored a valid configuration for
that counter.

Word

Bit

Function

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

0

Not Used

Z1

B1

A1

Z0

B0

A0

Input State

1

Readback.0 through Readback.15

Readback

2

InvalidRangeLimit12

through

InvalidRangeLimit15

InvalidCtrAssignToRange12

through

InvalidCtrAssignToRange15

Gen

Error

Invalid
Output

Mod

Config

Not Used

Out0Overcurrent through

Out3Overcurrent

Status Flags

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