Schneider Electric DS301 manual Objects, Index hex Object groups Supported By the drive

3 Basics IL•1F CANopen DS301

3.1.3Objects

All processes under CANopen are executed via objects. Objects carry out different tasks; they act as communication objects for data transport to the fieldbus, control the process of establishing a connection or mon- itor the network devices. If objects are directly linked to the device (de- vice-specific objects), the device functions can be used and changed via these objects.

Object dictionary The object dictionary of each network device allows for communication between the devices. Other devices find all objects with which they can communicate in this dictionary.

	CANopen
	Communication	Object	Device
	Process data	directory	functions
	objects (PDO)
	Service data	1000h	Application
		3000h		Power
	objects (SDO)
			Device profile	amplifier
		6000h
	SYNC, EMCY			Motor
		FFFFh
			Specific functions
-Bus	Network
	management NMT
CAN

Figure 3.2 Device model with object dictionary

Objects for describing the data types and executing the communication tasks and device functions under CANopen are included in the object dictionary.

Object index Every object is addressed by means of a 16 bit index, which is repre- sented as a four-digit hexadecimal number. The objects are arranged in groups in the object dictionary.

Index (hex)	Object groups	Supported
		by the drive
0000h	Reserved	No
0001h-009Fh	Static and complex data types	No
00A0h-0FFFh	Reserved	No
1000h-1FFFh	Communication profile, standardized in DS 301	Yes
2000h-5FFFh	Manufacturer-specific device profiles	Yes
6000h-9FFFh	Standardized device profiles, e.g. in DSP 402	No
A000h-FFFFh	Reserved	No

Table 3.1 Object index

See page 79, 8.2 "Objects of the product" for a list of the CANopen ob- jects.

Object group data types Data types are used so that the messages that are transmitted via the network as bit streams have the same meaning for the transmitting and

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16 Fieldbus interface