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Writing to register objects – Rockwell Automation 2100-GK61 DeviceNet to SCANport User Manual

Page 114

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Publication 2100-UM001B-EN-P – January 2001

6-22

Using DeviceNet Explicit Messaging

and future writes blocked.

If a marked connection has its EPR value reset to zero (0) after
being marked, then the connection will become unmarked.

Writing to Register Objects

Within the DeviceNet to SCANport Communication Module with
Digital Inputs, various register objects buffer I/O in the following
fashion (RO=Read Only, R/PW=Read/Write Protected):

Refer to the “Class Code 0x07 — Register Object” section in
Appendix C, DeviceNet Objects, for more information on the Register
Object.

Instance

Access

Size

Function

1

RO

See M-S Out-

put

Poll Response I/O data to controller

2

R/PW

See M-S Out-

put

Buffered Poll I/O data from controller

3

RO

32 bits

Logic Status & Feedback

4

R/PW

32 bits

Datalink A from SCANport Device (if enabled)

5

RO

32 bits

Datalink A to SCANport Device (if enabled)

6

R/PW

32 bits

Datalink A from SCANport Device (if enabled)

7

RO

32 bits

Datalink B to SCANport Device (if enabled)

8

R/PW

32 bits

Datalink B from SCANport Device (if enabled)

9

RO

32 bits

Datalink C to SCANport Device (if enabled)

10

R/PW

32 bits

Datalink C from SCANport Device (if enabled)

11

RO

32 bits

Datalink D to SCANport Device (if enabled)

12

R/PW

32 bits

Datalink D from SCANport Device (if enabled)

13

RO

32 bits

Logic Status and Feedback

14

R/PW

32 bits

Logic Command (Last Logic Command is ANDed with the first word
in this command and ORed with the second word in the command.
The reference is not modified. This command allows bit changes to
the logic command without affecting the speed reference or other
control bits.)