DeviceNet Option User's Manual

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3.2. Message Router
Class code 0x02. The Message Router Object provides a messaging connection point through which
a Client may address a service to any object class or instance residing in the DeviceNet interface
unit.
3.2.1. Message Router Class Attributes
Attribute
ID
Name
Data
Type
Access
Rules
Description
Default
Value
1 Revision UINT Get Revision of this object 1
2 Max instance UINT Get
Maximum instance number of an object
currently created in this class level of
the device
1
3.2.2. Message Router Instance Attributes
Attribute
ID
Name
Data
Type
Access
Rules
Description
Default
Value
1 Object List
USINT
(ARRAY)
Get A list of supported objects -
2
Number Available
UINT Get
Maximum number of connections
supported
1
3
Number Active
UINT Get
Number of connections currently used
by system components
1
4
Active Connections
UINT
(ARRAY)
Get
A list of the connection IDs of the
currently active connections
1
3.2.3. Message Router Common Services
Supported
Service
Code
Service Name
Class Instance
Description of Service
0x0E Get_Attribute_Single Yes Yes Returns the contents of the specified attribute.
3.2.4. Message Router Specific Services
The Message Router provides no object specific services.