Example, 9"can on board" system bus – Lenze 9400 User Manual

Page 352

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9

"CAN on board" system bus

9.10

Implemented CANopen objects | I-1201

352

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06

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Example

Parameter data channel 2 of the controller with node address 4 shall be activated.

• For this purpose, bit 31 must be set to "0" (≡ "SDO is valid") in subindices 1 and 2 of the object

I-

1201

.

• The master must send the two "write request" commands to the nodes via the basic SDO

channel.

Identifier calculation

• Identifier (COB-ID) = basic identifier + node address (node ID)
• Basic identifier SDO2 from master to drive: 1600 (0x640)

 Identifier = 0x640 + 0x4 = 0x644

• Basic identifier SDO2 from drive to master: 1472 (0x5C0)

 Identifier = 0x5C0 + 0x4 = 0x5C4

Resulting data (data 1 ... data 4)

[9-21] Data telegram assignment for subindex 1

[9-22] Data telegram assignment for subindex 2

User data assignment

[9-23] User data assignment for writing to subindex 1

[9-24] User data assignment for writing to subindex 2

8th byte

7th byte

6th byte

5th byte

Data 4

Data 3

Data 2

Data 1

Bit 31

Bit 30

Bit 29 ... bit 11

Bit 10 ... bit 0

0

0

Extended identifier = 0

11-bit identifier = 0x644

0x00

0x00

0x06

0x44

8th byte

7th byte

6th byte

5th byte

Data 4

Data 3

Data 2

Data 1

Bit 31

Bit 30

Bit 29 ... bit 11

Bit 10 ... bit 0

0

0

Extended identifier = 0

11-bit identifier = 0x5C4

0x00

0x00

0x05

0xC4

1st byte

2nd byte

3rd byte

4th byte

5th byte

6th byte

7th byte

8th byte

Command

Index

Subindex

Data 1

Data 2

Data 3

Data 4

0x23

0x01

0x12

0x01

0x44

0x06

0x00

0x00

1st byte

2nd byte

3rd byte

4th byte

5th byte

6th byte

7th byte

8th byte

Command

Index

Subindex

Data 1

Data 2

Data 3

Data 4

0x23

0x01

0x12

0x02

0xC4

0x05

0x00

0x00

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