Lenze EMF2175IB - Manual (Page 35)

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6 Parameter setting
6-7
L
BA2175 EN 2.0
6.2.1 Structure of a parameter data telegram
User data (up to 8 byte)
1st byte 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte
Data 1 Data 2 Data 3 Data4
Command
Index Index
Subindex
Low Word High Word
Command
Index
Low byte
Index
High byte
Subindex
Low byte High byte Low byte High byte Low byte High byte
Error message
Parameters can be set via two separate software channels which are selected by means of the
controller address (chapter 6.1.1).
Tip!
User data are displayed in the left-justified INTEL format.
For calculation examples see chapter 6.2.2.
Details about the
parameter data 1st byte
parameter data
telegram:
Command
The command contains the follwing information which must be entered if not already indicated:
Access to Data 1 - Data 4
Command
4 byte data
(5th - 8th byte)
2 byte data
(5th + 6th byte)
1 byte data
(5th byte)
Block
(chapter 6.2.4)
hex hex hex hex
Write Request
(Send parameters to drive)
23 2B 2F
Writing not
Write Response
(Controller response to write request (acknowledgement))
60 60 60
Writing not
possible
Read Request
(Request to read a parameter from the drive)
40 40 40 40
Read Response
(Response to the read request with an actual value)
43 4B 4F 41
Error response
(Controller indicates communication error)
80 80 80 80
Details about the 2nd byte 3rd byte Details about the
parameter data
telegram:
Index
Low byte
Index
High byte
Parameters and Lenze codes are selected with these two bytes according to the following formula:
Index = 24575 − ( Lenze - code + 2000 ⋅ ( parameter set − 1))
Example Calculation Index low/high byte
Code L-C0012 (acceleration time) in
parameter set 1 is to be addressed. 24575 - 12 - 0 = 24563 = 5FF3
hex
According to the left-justified Intel data format
the entries are (see chapter 6.2.1):
Index low byte = F3
hex
Index high byte = 5F
hex
Code L-C0012 (acceleration time) in
parameter set 2 is to be addressed. An offset of 2000 is to be added because of
parameter set 2:
24575 - 12 - 2000 = 22563 = 5823
hex
According to the left-justified Intel data format
the entries are (see chapter 6.2.1):
Index low byte = 23
hex
Index high byte = 58
hex
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