Chapter 3: the object dictionary, Chapter 3: the object dictionary -1 – ElmoMC CANopen DS 301 Implementation Guide User Manual

Page 17

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Chapter 3: The Object Dictionary

The object dictionary is essentially a grouping of objects that are accessible via receive
and transmit SDOs. Part of the object can be mapped to transmit and receive PDOs
(TPDO and RPDO, respectively) in a predefined manner.

The following layout is used with the objects in the object dictionary:

Index (Hex)

Object

0 Not

used

0001 - 001F

Static data type

0020 - 003F

Complex data type

0040 - 005F

Manufacturer-specific data type

0060 - 0FFF

Reserved

1000 - 1FFF

Communication profile area

2000 - 2FFF

Manufacturer-specific profile area

6000 - 6FFF

Standardized device profile area

A000 - FFF

Reserved

The table that follows lists the objects supported by SimplIQ digital servo drives. Each
object is addressed by a 16-bit index. Some of the objects may include 8-bit sub-indices,
which are described in the object description. The object Name is that given by CiA or
Elmo according to object type. Access can be R (read only), W (write only) or R/W
(read/write). In the Can be Mapped column, N indicates that the object cannot be
mapped to a PDO, while Y indicates that the object can be mapped to a PDO or that it is
permanently mapped to a predefined PDO.
Name Index

Description

Access

Mapped

CAN controller
type

0x1000

Device type and functionality. Constant
value = 0x12D.

R N

Error register

0x1001

Contains error information.

R

N

Manufacturer
status register

0x1002

Returns status similar to SR command.

R

Y

Pre-defined error
field

0x1003

Returns previous emergency history.
Setting object 0x1003 sub-index 0 to 0
deletes error history.

R N

COB-ID for
SYNC message

0x1005

32-bit Dword, pre-defined.

R

N

Communication
cycle period

0x1006

Spacing, in μsec, between consecutive
SYNC signals. This parameter is included

for compatibility with the standard OD, but
it is ignored.

R/W N

CANopen DS 301 Implementation Guide

The Object Dictionary

MAN-CAN301IG (Ver. 2.1)

3-1

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