Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 28)

Publication 1760-UM003A-EN-P - September 2005
4-4 DeviceNet Functions
Manufacturer-Specific Objects
These objects define device-specific data and functions (Application
Objects, Parameter Object, Assembly Object).
• Application Objects – Pico Object
Application objects (Class ID: 64
hex
) describe simple
applications for automation engineering. They are either
predefined in the DeviceNet object library or by the user.
Refer to Pico Object on page 4-6.
• Assembly Objects
The Assembly Object (Class ID: 04
hex
) provides the user with
mapping options, that is attribute data of different instances in
different classes can be grouped together to form a single
attribute of an instance in an assembly object.
Identity Object
Object Address Function Access
Class ID Instance ID Attribute ID Service Code
01
hex
01
hex
Table 4.4 Table 4.5
Table 4.4 Attribute IDs of the Identity Object Instance
Attribute
ID Access Name Description Size
(byte)
1 Read Vendor ID Allen-Bradley Vendor ID = 1 2
2 Read Device type The 1760-DNET belongs to the
communication adapters category. Its
value is 12
dec
.
2
3 Read Product code Allen-Bradley product code = 18410 2