Lenze E94AYCCA - Manual (Page 73)

EDS94AYCCA EN 5.0 - 06/2012
L
73
E94AYCCA communication manual (CANopen®)
Parameter data transfer
Examples for a parameter data telegram
Telegram 3 to the drive: Request of the 2nd data block
Response telegram 3 from the drive: Send 2nd data block with 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 of the 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 of the 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 end bit and the residual data length on the transmission command
• The end of transmission is reported by the set end bit 0.
• By means of bit 1 ... 3, the number of bytes which do not contain data anymore is announced.
* Toggle bit
Data 1 ... 7 = "0.00" (ASCII representation)
The result of the data block transfer is: "01.00.00.00"