Lenze 8400 TopLine - Manual (Page 794)

12 System bus "CAN on board"
12.9 Parameter data transfer
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Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
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12.9.3.3 Read block parameters
Task: The firmware version (code C00099 ) is to be read from the parameter set of the controller with
node address "12". The firmware version has a length of 11 ASCII characters which are transmitted
as a block parameter. Depending on the block, the data width from the 2nd to 8th byte is assigned
within the user data.
Telegram 1 to the drive: Read request
Response telegram 1 from the drive: Indication of the block length (11 characters)
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
0x060C 0x40 0x9C 0x5F 0x00 0x00 0x00 0x00 0x00
Explanations on the telegram to the drive
Identifier
= 1536 + node address = 1536 + 12 = 1548 = 0x060C
(1536 = SDO1 basic identifier to the controller)
Command = 0x40 = "Read request" (read request of a parameter from the controller)
Index = 24575 - code number = 24575 - 99 = 24476 = 0x5F9C
Subindex = 0 (code C00099 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
0x058C 0x41 0x9C 0x5F 0x00 0x0B 0x00 0x00 0x00
Explanations on the telegram from the drive
Identifier
= 1408 + node address = 1408 + 12 = 1420 = 0x058C
(1408 = SDO1 basic identifier from the controller)
Command = 0x41 = "Read response" (response is block telegram)
Index as in telegram to the drive
Subindex
Data 1 ... 4
= 0x0000000B = data length of 11 characters in the ASCII format