Lenze ECSEE040 - Page 92

Configuration
General information about the system bus (CAN)
Parameter data transfer
8
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92
EDBCSXE040 EN 6.0
8.1.4.2 Examples of the parameter data telegram
Reading parameters
The heatsink temperature C0061 (43 °C) is to be read from the controller with node
address 5 via the parameter data channel 1.
ƒ Identifier calculation
Identifier from SDO1 to controller Calculation
1536 + node address 1536 + 5 = 1541
ƒ Command "Read Request" (request to read a parameter from the controller)
Command Value
Read request 40
hex
ƒ Index calculation:
Index Calculation
24575 − code number 24575 − 61 = 24514 = 5FC2
hex
ƒ Subindex: 0
ƒ Telegram to controller
Identifier
User data
Command Index
LOW byte
Index
HIGH byte
Subindex Data 1 Data 2 Data 3 Data 4
1541
40hex
C2
hex
5F
hex
00 00 00 00 00
ƒ Telegram from controller
Identifier
User data
Command Index
LOW byte
Index
HIGH byte
Subindex Data 1 Data 2 Data 3 Data 4
1413 43
hex
C2
hex
5F
hex
00 B0
hex
8F
hex
06
hex
00
– Command:
"Read Response" (response to the read request) = 43
hex
– Identifier:
SDO1 from controller (= 1408) + node address (= 5) = 1413
– Index of the read request:
5FC2
hex
– Subindex:
0
– Data 1 ... 4:
00 06 8F B0 = 430.000 ( 430.000 : 10.000 = 43 °C