4 sdo-struktur – Baumer BA_DSRT_22DJ Benutzerhandbuch

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Manual_CANopen_StrainLink_EN_V3_05.doc

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Baumer

22.07.11/dam

Frauenfeld, Switzerland

5.4 SDO-Struktur

ID

DLC

Byte1

Byte2

Byte3

Byte4

Byte5

Byte6

Byte7

Byte8

-

8

CMD

Index

Sub-index

Data bytes

Procedure

CMD

Remarks

Master request data from slave

40h

42h

(valid data bytes not specified)

43h

(4 valid data bytes)

47h

(3 valid data bytes)

4Bh

(2 valid data bytes)

Slave responds

4Fh

(1 valid data bytes)

22h

(valid data bytes not specified)

23h

(4 valid data bytes)

27h

(3 valid data bytes)

2Bh

(2 valid data bytes)

Master writes to slave

2Fh

(1 valid data bytes)

Slave responds

60h


In index and data bytes, the lowest byte is transmitted first. In ASCII code the bytes will be transferred legible
(first character first).

The range of the communication profile is in the indices 1000h-1FFFh and includes all parameters which
concern the CAN network. This range is defined in the same way in all CANopen devices.

The minimum time difference between two SDO messages must not be less than 20ms. Faster SDO
communication can put the device into undefined states.

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