Sdo Read Object; Sdo Write Object - WIKA MH-4-CAN Special Documentation

Canopen pressure sensor
Hide thumbs Also See for MH-4-CAN:
Table of Contents

Advertisement

3. CANopen communication

3.3.1 SDO read object

The SDO read object to read an dictionary entry:
Master transmits:
ID
DLC Byte0 Byte1 Byte2 Byte3
600h +
8
CS =
Node-ID
40h
MH-4 CAN replies:
ID
DLC Byte0 Byte1 Byte2 Byte3
580h +
8
CS
Node-ID
CS
Number of valid bytes
4Fh
1 (Byte4)
4Bh
2 (Byte4 - Byte5)
47h
3 (Byte4 - Byte6)
43h
4 (Byte4 – Byte7)

3.3.2 SDO write object

The SDO read object to write data to an dictionary entry:
Master transmits:
ID
DLC Byte0 Byte1 Byte2 Byte3
600h +
8
CS =
Node-ID
60h
CS
Number of valid bytes
1 (Byte4)
2Fh
2Bh
2 (Byte4 - Byte5)
27h
3 (Byte4 - Byte6)
23h
4 (Byte4 – Byte7)
WIKA special documentation, model MH-4-CAN
LSB
MSB
Subindex
Index
LSB
MSB
Subindex
Index
LSB
MSB
Subindex
Index
Byte4
Byte5
Byte6
00h
00h
00h
Byte4
Byte5
Byte6
LSB
Data
Byte4
Byte5
Byte6
LSB
Data
EN
Byte7
00h
Byte7
MSB
Byte7
MSB
11

Advertisement

Table of Contents
loading

Table of Contents