Read Block Parameters - Lenze 8400 StateLine C Reference Manual

8400 StateLine C | Reference manual
System bus "CAN on board"
Parameter data transfer
10.9.3.3

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
Identifier
0x060C
Explanations on the telegram to the drive
Identifier
Command
Index
Subindex
Response telegram 1 from the drive: Indication of the block length (11 characters)
Identifier
0x058C
Explanations on the telegram from the drive
Identifier
Command
Index
Subindex
Data 1 ... 4
466
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User data
1st byte 2nd byte 3rd byte
Command Index
0x40 0x9C 0x5F
= 1536 + node address = 1536 + 12 = 1548 = 0x060C
(1536 = SDO1 basic identifier to the controller)
= 0x40 = "Read request" (request to read a parameter from the controller)
= 24575 - code number = 24575 - 99 = 24476 = 0x5F9C
= 0 (code C00099 does not have any subcodes)
User data
1st byte 2nd byte 3rd byte
Command Index
0x41 0x9C 0x5F
= 1408 + node address = 1408 + 12 = 1420 = 0x058C
(1408 = SDO1 basic identifier from the controller)
= 0x41 = "Read response" (response is block telegram)
as in telegram to the drive
= 0x0000000B = data length of 11 characters in the ASCII format
L
4th byte 5th byte 6th byte
Subindex Data 1 Data 2
0x00 0x00 0x00
4th byte 5th byte 6th byte
Subindex Data 1 Data 2
0x00 0x0B 0x00
Firmware ≤ 11.00 - DMS 8.0 EN - 10/2011
7th byte 8th byte
Data 3 Data 4
0x00 0x00
7th byte 8th byte
Data 3 Data 4
0x00 0x00