2 writing parameters, Writing parameters, E94aycca communication manual (canopen®) – Lenze E94AYCCA User Manual

Page 70

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E94AYCCA communication manual (CANopen®)

Parameter data transfer

Examples for a parameter data telegram

70

L

EDS94AYCCA EN 5.0 - 06/2012

9.3.2

Writing parameters

Task: The rated current of the connected motor with I

rated

= 10.2 A (code C00088) is to be

entered in the controller with node address "2".

Telegram to drive

Response telegram from drive (if data have been transmitted correctly)

Identifier

User data

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

0x0602

0x23

0xA7

0x5F

0x00

0x66

0x00

0x00

0x00

Explanations of the telegram to the drive
Identifier

= 1536 + node address = 1536 + 2 = 1538 = 0x0602

(1536 = basic identifier SDO1 to the controller)

Command

= 0x23 = "Write Request" (write request of a parameter to the controller)

Index

= 24575 - code number = 24575 - 88 = 24487 = 0x5FA7

Subindex

= 0 (code C00088 has no subcodes)

Data 1 ... 4

= 10.2 x 10 = 102 = 0x00000066

(Value for motor current, data type U32; display factor 1/10)

Identifier

User data

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

0x0582

0x60

0xA7

0x5F

0x00

0x00

0x00

0x00

0x00

Explanations of the telegram from the drive
Identifier

= 1408 + node address = 1408 + 2 = 1410 = 0x0582

(1408 = basic identifier SDO1 from the controller)

Command

= 0x60 = "Write Response" (acknowledgement of the write access from the controller)

Index

as in telegram to the drive

Subindex

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