1 command, Command, Can on board" system bus parameter data transfer – Lenze E94ARNE Regenerative power supply User Manual
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EDS94ARNExxxx EN 2.3 - 06/2014
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9400 regenerative power supply module | Parameter setting
"CAN on board" system bus
Parameter data transfer
6.7.2.1
Command
The following commands can be sent/received for writing and reading the parameters:
In detail, the command byte contains the following information:
Tip!
Further commands are defined in the CANopen specification DS301 V4.02 (e.g.
segmented transfer).
1st byte
2nd byte 3rd byte
4th byte
5th byte
6th byte
7th byte
8th byte
Command
Index
Subindex
Data 1
Data 2
Data 3
Data 4
Low byte High byte
Low word
High word
Low byte
High byte
Low byte
High byte
Command
1st byte
Data length Information
hex
dec
Write request
0x23
35
4 bytes
Writing a parameter to the controller.
0x2B
43
2 byte
0x2F
47
1 byte
0x21
33
Block
Write response
0x60
96
4 bytes
Acknowledgement from the controller to a write request.
Read request
0x40
64
4 bytes
Reading a parameter from the controller.
Read response
0x43
67
4 bytes
Response of the controller to a read request with the current
parameter value.
0x4B
75
2 byte
0x4F
79
1 byte
0x41
65
Block
Error response
0x80
128
4 bytes
Response of the controller when the write/read request
could not be executed successfully.
Command
1st byte
Command specifier (cs)
Toggle (t)
Length*
e
s
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Write request
0
0
1
0
0/1
0/1
1
1
Write response
0
1
1
0
0
0
0
0
Read request
0
1
0
0
0
0
0
0
Read response
0
1
0
0
0/1
0/1
1
1
Error response
1
0
0
0
0
0
0
0
*Bit coding of the length: 00 = 4 bytes, 01 = 3 bytes, 10 = 2 bytes, 11 = 1 byte
e: expedited (shortened block service)
s: segmented (normal block service)