SMC Networks LECSN-T Series User Manual

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18．EtherCAT COMMUNICATION
18.1.5 Summary of object dictionary (OD)
POINT
Refer to chapter 7 for details of the object dictionary.
Each data set that CAN application protocol over EtherCAT (CoE) devices have such as control parameters,
command values, and feedback values is handled as an object composed of an Index value, object name,
object type, R/W attribute, and other elements. The object data can be exchanged between the master and
slave devices. The aggregate of these objects is called object dictionary (OD).
18.1.5.1 Section definition of object dictionary
In the CAN application protocol over EtherCAT (CoE) standard, objects of the object dictionary are
categorized by Index depending on the area type as shown in the following table. Refer to the Reference
column for the chapters and the section where the details of each object are described.
Index
Description
Reference
0000h to 0FFFh
Data type area
1000h to 1FFFh
CoE communication area
Chapter 1, Chapter 3,
Chapter 4, Chapter 7
2000h to 25FFh
Parameter area (Vendor-specific)
Section 6.5, Chapter 7
2800h to 29FFh
Point table area (Vendor-specific)
Chapter 7
2A00h to 2FFFh
Servo control command/monitor area (Vendor-specific)
Chapter 6, Chapter 7
6000h to 6FFFh
CiA 402 Drive profile area
Chapter 5, Chapter 7
18.1.5.2 Saving object dictionary data to EEP-ROM
There are two types of object dictionary data: One is saved to EEP-ROM and another is not saved. Refer to
Section 7.3 for the availability and details of save for each object.

SMC Networks LECSN-T Series Specifications

General

Brand	SMC Networks
Model	LECSN-T Series
Category	Controller
Language	English