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11
System bus "CAN on board"
11.9
Parameter data transfer
744
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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11.9.3.2
Write parameters
Task: The rated current of the connected motor is to be entered with I
N
) into
the inverter with node address "2".
Telegram to drive
Response telegram from drive (if data have been correctly transmitted)
Data 1 ... 4
Calculation
Value for motor current, (data type U16; display factor 1/100)
10.20 x 100 = 1020 (0x03 FC)
Identifier
User data
1st byte
2nd byte 3rd byte
4th byte
5th byte
6. byte
7th byte
8th byte
Command
Index
Subindex
Data 1
Data 2
Data 3
Data 4
0x0602
0x23
0xA7
0x5F
0x00
0xFC
0x03
0x00
0x00
Explanations on the telegram to the drive
Identifier
= 1536 + node address = 1536 + 2 = 1538 = 0x0602
(1536 = SDO1 basic identifier to the inverter)
Command
= 0x23 = "Write request" (write request of a parameter to the inverter)
Index
= 24575 - code number = 24575 - 88 = 24487 = 0x5FA7
Subindex
does not have any subcodes)
Data 1 ... 4
= 10.20 x 100 = 1020 = 0x000003FC
(motor current value; data type U32; display factor 1/100)
Identifier
User data
1st byte
2nd byte 3rd byte
4th byte
5th byte
6. 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 on the telegram from the drive
Identifier
= 1408 + node address = 1408 + 2 = 1410 = 0x0582
(1408 = SDO1 basic identifier from the inverter)
Command
= 0x60 = "Write response" (Acknowledgement of the write access from the inverter)
Index
as in telegram to the drive
Subindex