Lenze · Decentralised frequency inverter 8400 motec (CANopen option) · EDS84DMOTCAN EN 4.0 - 02/2019 63
Parameter data transfer
Parameter data telegram examples
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Telegram 3 to the drive: Request of the 2nd data block
Response message 3 from the drive: Transmission of the 2nd data block including end identifier
Identifier User data
1st byte 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte
Command Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7
0x060C 0x70 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Explanations on telegram 3 to the drive
Command = 0x70 = "Read segment request" (request: read data block)
• Bit 4 = 1 (toggle bit)
Identifier User data
1st byte 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte
Command Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7
0x058C 0x17 0x30 0x2E 0x30 0x30 0x00 0x00 0x00
0
asc
.
asc
0
asc
0
asc
---
Explanations on telegram 3 from the drive
Command = 0x17 = 00010111
bin
:
• Bit 0 = 1 (end of transmission)
• Bit 1 ... bit 3 = 011
bin
(3 bytes do not contain any data)
• Bit 4 = 1 (toggle bit)
Influence of the final bit and the residual data length on the transmission command
• The end of transmission is signalled via the set final bit 0.
• Bits 1 ... 3 reveal the number of bytes that do not contain data anymore.
* Toggle bit
Data 1 ... 7 = "0.00" (ASCII representation)
The result of the data block transmission is: "01.00.00.00"
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