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Devicenet object— class id (03hex), Devicenet object — class id (03hex) – Rockwell Automation 198x Modular DeviceNet Starter Auxiliary I/O User Manual

Page 146

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A-6 DeviceNet Information

Publication 198-UM001B-EN-P September 2001

DeviceNet Object — Class ID (03hex)

The following class attributes are supported for the DeviceNet Object:

The following instance attributes are supported:

Allocation byte:
Bit 0

Explicit Messaging

Bit 1

Polled I/O

Bit 4

Change of State (COS) I/O

Bit 5

Cyclic I/O

Bit 6

Acknowledge Suppress I/O

Table A.5 DeviceNet Object Class Attributes

Attribute ID

Access Rule

Name

Data Type

Value

1

Get

Revision

UINT

1

Table A.6 DeviceNet Object Instance Attributes

Attribute

ID

Access

Rule

Name

Data Type

Value

1

Get/Set

MAC ID

USINT

0…63

2

Get/Set

Baud Rate

USINT

0 = 125 K baud
1 = 250 K baud
2 = 500 K baud

3

Get/Set

BOI

BOOL

0 = Hold in error state on detection of BOI
1 = Reset CAN chip on detection of BOI

4

Get/Set

Bus-off Counter

USINT

Range 0…255

5

Get

Allocation Information

Allocation Choice Byte

Master’s MAC ID

Structure:

BYTE

USINT

Allocation byte

0…63 = Address
255 = Unallocated

6

Get

MAC ID

Switch Changed

BOOL

0 = No change
1 = Change since last reset or power-up

8

Get

MAC ID

Switch Value

USINT

Actual value of node address switches
Range 0…99
Address 64…99
Software settable

100

Get/Set

AutoBaud Disable

BOOL

0 = Enable (default)
1 = Disable