E94aycca communication manual (canopen®) – Lenze E94AYCCA User Manual

Page 39

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EDS94AYCCA EN 5.0 - 06/2012

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39

E94AYCCA communication manual (CANopen®)

Data transfer

Structure of the CAN data telegram

Identifier assignment
The system bus (CANopen) is message-oriented and not node-oriented. Each message has

a unique identification, the identifier. In the case of CANopen, a node-orientation is

achieved by the fact that for each message there is only one sender.

 The basic identifiers for network management (NMT) and sync as well as the basic SDO

channel (SDO1) are specified in the CANopen protocol and cannot be changed.

 In the Lenze setting, the basic identifiers of the PDOs are preset according to the

"Predefined Connection Set" of DS301, V4.02. They can be changed via parameters/

indexes if required.



Identifiers of the process data objects

( 46)

Object

Direction

Basic identifier

from the device

to the device

dec

hex

Network management (NMT)

0

0

Sync

128

80

Emergency

z

128

80

PDO1

(Process data channel 1)

TPDO1

z

384

180

RPDO1

z

512

200

PDO2

(Process data channel 2)

TPDO2

z

640

280

RPDO2

z

768

300

PDO3

(Process data channel 3)

TPDO3

z

896

380

RPDO3

z

1024

400

PDO4

(Process data channel 4)

TPDO4

z

1152

480

RPDO4

z

1280

500

SDO1

(Basic SDO channel)

z

1408

580

z

1536

600

SDO2 ... SDO10

(Parameter data channel 2 ... 10)

z

1472

5C0

z

1600

640

Node guarding, heartbeat

z

1792

700

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