Lenze 2141, Operating Instructions Manual, Page: 28 / 90

Parameter setting
6-6
L
BA2141 EN 1.0
Example 1: Read parameter
The heat sink temperature (Here:
J
= 43
°
C) of the controller is to be read (C0061).
•
Byte 1: Length
– 4 (data length 4 bytes)
•
Byte 2 and byte 3: Code
– C0061: 61 = 3D
hex
•
Byte 4: Subcode
– Subindex = 0, as there is not subindex under code C0061.
•
Byte 5: Service
– Service = 1 (Read)
•
Byte 6 ... 9: Data (part of the response of
nvoParamRes
)
– Data 1 to data 4 = 43[
°
C] x 10000 = 430000 = 00 06 8F B0
hex
Result:
Byte1 Byte 2 + byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9
Lengt
h
code Lenze subcode Service Parameter value
Request telegram from master to drive
Hex:
04 003D 00 01
00 00 00 00
Wait for response identification with code = 003D and subcode 0
Response telegram from drive to master (for faulty execution)
Hex: 04 003D 00 01 00 06 8F B0
Tab. 6-2 Telegram exchange in LON parameter data channel
Example 2: Write parameter
The acceleration time (C0012) of the controller is to be set to T
ir
= 20 s.
•
Byte 1: Length
– 4 (data length 4 bytes)
•
Byte 2 and byte 3: Code
– C0012: 12 = 0C
hex
•
Byte 4: Subcode
– Subindex = 0, as there is not subindex under code C0061.
•
Byte 5: Service
– Service = 2 (Write)
•
Byte 6 ... 9: Data (part of the response of
nvoParamRes
)
– Data 1 to data 4 = 20 [s] x 10000 = 200000 = 00 03 0D 40
hex
Result:
Byte1 Byte 2 + byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9
Lengt
h
code Lenze subcode Service Parameter value
Request telegram from master to drive
hex:
04 000C 00 02
00 03 0D 40
Wait for response identification with code = 00C and subcode 0
Response telegram from drive to master (for faulty execution)
hex: 04 000C 00 02 00 00 00 00
Tab. 6-3 Telegram exchange in LON parameter data channel
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