Communication manual 8400 motec ethercat – Lenze E84DGFCT User Manual
Page 48

Communication manual 8400 motec EtherCAT®
Parameter data transfer
Reading and writing parameters
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L
EDS84DMOTECAT EN 2.1 - 11/2012
Example
The transmitted response structure during an Upload to index 0x5FD8 (standard value of
C00039/1, Fixed_Setpoint_1 = 0x0FA0) includes the following data:
SDO frame area
Data field
Data type / length
Value / description
Mailbox header
Length
WORD
2 bytes
0x0A: Length of the mailbox service data
Address
WORD
2 bytes
0x00
Channel
WORD
6 bits (0 ... 5)
0x00: Reserved
Priority
2 bits (6, 7)
0x00: Lowest priority
Type
4 bits (8 ... 11)
0x03: CANopen over EtherCAT (CoE)
Reserved
4 bits (12 ... 15)
0x00
CANopen header
Number
WORD
9 bits (0 ... 8)
0x00
Reserved
3 bits (9 ... 11)
0x00
Service
4 bits (12 ... 15)
0x03: SDO Response
SDO
Size indicator
BYTE
1 bit (0)
0x01: Data length in "Data set size"
Transfer type
1 bit (1)
0x01: Expedited transfer
Data set size
2 bits (2, 3)
0x02: 2 bytes data
Complete access
1 bit (4)
0x00: The entry addressed by index and subindex is read.
Command specifier
3 bits (5 ... 7)
0x02: Upload Response
Index
WORD
2 bytes
0xD8: Index low byte of the object
0x5F: Index high byte of the object
Subindex
BYTE
1 byte
0x01
Data
DWORD
2 bytes
0x0FA0