Status assembly – Rockwell Automation 1788-EN2DNR EtherNet/IP to DeviceNet Linking Device User Manual User Manual

Page 32

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Rockwell Automation Publication 1788-UM059A-EN-P - August 2014

Chapter 3

Configure the Linking Device

Status Assembly

The status assembly is a collection of status and diagnostic information for the
linking device’s DeviceNet network interface. The information in the assembly is
updated once a second.

IMPORTANT

All information in the status assembly is stored in little endian format. The
least significant byte of multibyte values is stored first.

Status Assembly Format

Byte
Offset

Size in
Bytes

Data Type

Name (Studio 5000
environment version
21or later)

Description

0

4

UDINT

ScanCounter

The number of DeviceNet I/O scans that
have taken place since power was applied
to the linking device.

4

8

SINT[8]

DeviceFailureRegister

Indicates which DeviceNet slaves are
faulted. Each bit represents the status of
the slave at the corresponding MAC ID.

12

8

SINT[8]

AutoVerifyFailure
Register

Indicates which DeviceNet slaves are the
incorrect device type. Each bit represents
the status of the slave at the
corresponding MAC ID.

20

8

SINT[8]

DeviceIdleRegister

Indicates which DeviceNet slaves are in
Idle mode. Each bit represents the status
of the slave at the corresponding MAC ID.

28

8

SINT[8]

ActiveNodeRegister

Indicates which DeviceNet nodes are
configured in the 1788-EN2DN’s scan list.
Each bit represents the status of the slave
at the corresponding MAC ID.

36

4

SINT[4]

StatusDisplay

Mimics a 4-character alpha-numeric
display. If there are no faults, the display
shows the linking device’s MAC ID and its
Run/Idle status.
If there are faults, the display scrolls
through the MAC IDs of the faulted nodes
and display the error code associated with
each.

40

1

USINT

ScannerAddress

The DeviceNet MAC ID of the linking
device.

41

1

USINT

ScannerStatus

The current status of the DeviceNet
scanner.

42

1

USINT

ScrollingDevice
AddressAndStatus

The scrolling address and status fields
scroll through the address and status of all
DeviceNet slaves that are faulted. This
scrolling includes the linking device
scanner itself.
If there are no faulted nodes, both the
scrolling address and status are set to 0.
The scrolling fields change once a second.

43

1

USINT

64

64

USINT[64]

DeviceStatus

The current status of each DeviceNet slave
node. Each array element is the status of
the node at the corresponding MAC ID.
If a node is not configured in the linking
device scan list, the status value is set to 0.
The linking device scanner status appears
at the entry associated with the linking
device MAC ID.

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