
20
920-0025 Rev K
3/5/2015
CANopen User Manual
Appendix A - The Object Dictionary
The most important part of a device prole is the Object Dictionary description. The Object
Dictionary is essentially a grouping of objects accessible via the network in an ordered pre-
dened fashion. Each object within the dictionary is addressed using a 16-bit index.
The overall layout of the standard Object Dictionary is shown below. This layout closely
conforms with other industrial serial bus system concepts:
Index (hex) Object
0000 not used
0001-001F Static Data Types
0020-003F Complex Data Types
0040-005F Manufacturer Specic Complex Data Types
0060-007F Device Prole Specic Static Data Types
0080-009F Device Prole Specic Complex Data Types
00A0-0FFF Reserved for further use
1000-1FFF Communication Prole Area
2000-5FFF Manufacturer Specic Prole Area
6000-9FFF Standardised Device Prole Area
A000-FFFF Reserved for further use
Table 8: Object Dictionary Structure
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