3 parameter data telegram examples, 1 reading parameters, Parameter data telegram examples – Lenze E84DGFCC User Manual

Page 62: Reading parameters, Communication manual 8400 motec canopen

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Communication manual 8400 motec CANopen

Parameter data transfer

Parameter data telegram examples

62

L

EDS84DMOTCAN EN 3.0 - 11/2011

9.3

Parameter data telegram examples

9.3.1

Reading parameters

Task: The heatsink temperature of 43 °C (code: C00061, data format: INTEGER32, scaling

factor: 1) of the controller with node address "5" is to be read.

Telegram to the drive

Response message 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

0x0605

0x40

0xC2

0x5F

0x00

0x00

0x00

0x00

0x00

Explanations on the telegram to the drive
Identifier

= 1536 + node address = 1536 + 5 = 1541 = 0x0605

(1536 = SDO1 basic identifier to the controller)

Command

= 0x40 = "Read request" (read request of a parameter from the controller)

Index

= 24575 - code number = 24575 - 61 = 24514 = 0x5FC2

Subindex

= 0 (code C00061 does not have any subcodes)

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

0x0585

0x43

0xC2

0x5F

0x00

0x2B

0x00

0x00

0x00

Explanations on the telegram from the drive
Identifier

= 1408 + node address = 1408 + 5 = 1413 = 0x0585

(1408 = SDO1 basic identifier from the controller)

Command

= 0x43 = "Read response" (response to the read request with current value)

Index

As in telegram to the drive

Subindex
Data 1 ... 4

= 0x0000002B = 43 [°C]

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