Lenze i700 - Manual (Page 38)

3 Communication with the controller
3.6 Ethernet over EtherCAT (EoE)
38
Lenze · i700 servo inverter · Reference manual · DMS 1.5 EN · 03/2014 · TD05
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3.6.4.4 Telegram example 1: Querying the heatsink temperature (read request)
The heatsink temperature of the i700 servo inverter is to be read.
• Object to be read: 0x2D84:1
• Assumption: ϑ = 43°C
Request
• SDO command (GSV) = 0x82 = "Read parameter"
• GCI Message Qualifier (GMQ) = 0x00 = 0b00000000 = "Request"
• Transaction ID (GTI) here "0" (optional consecutive number 0 ... 255)
• Length of the user data (SIZE) = 0x0014 = 20 bytes
GCI header
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
GMT GSV GMQ GTI SIZE SIZE res res
0x01 0x82 0x00 0x00 0x14 0x00 0x00 0x00
Fixed Read
parameters
Request Transactions ID Length of the user data = 20 bytes Reserved
User data area P0
Byte 1 Byte 2 Byte 3 Byte 4
Reserved Data type Reserved
0x00 0x00 0x00 0x00
Optional for
read request
User data area P1 User data area P2
Byte 1 Byte 2 Byte 3 Byte 4 Byte 1 Byte 2 Byte 3 Byte 4
Index Reserved Subindex Reserved
0x84 0x2D 0x00 0x00 0x01 0x00 0x00 0x00
Index = 0x2D84 Subindex = 1
User data area P3 User data area P4
Byte 1 Byte 2 Byte 3 Byte 4 Byte 1 Byte 2 Byte 3 Byte 4
Reserved Reserved
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00