Lenze EMF2175IB - Manual (Page 40)

CANopen
6 Parameter setting
6-12
L
BA2175 EN 2.0
6.2.4 Read block parameters
The software product code (code L-C0200) of a Lenze product is to be read from parameter set 1.
The product code has 14 alphanumerical characters. They are transferred as block parameters. The
transfer of block parameters uses the entire data width (2nd - 8th byte).
During transfer, the command byte (1st byte) contains entries
hex
or 41
hex
) to
– indicate the end of a block transfer
– request the next block
•
Code L-C0200 - request
1st byte 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte
40
hex
37
hex
5F
hex
00 00 00 00 00
1st byte: 40 read request (request to read a parameter from the controller)
2nd/3rd byte: Index Low/High Byte: 24575 - 200 - 0 = 24375 = 5F37
hex
•
Response including the block length (14 characters)
1st byte 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte
41
hex
37
hex
5F
hex
00 0E
hex
00 00 00
1st byte: 41 read response. The entry 41
hex
implies that it is a block telegram.
2nd/3rd byte: see above
5th byte: 0E (=14
dec.
) data length 14 characters (ASCII format)
•
First data block - request
1st byte 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte
60
hex
00 00 00 00 00 00 00
1st byte: 60
hex
Write response (acknowledgement) with access to bytes 2 - 8.
Note:
The individual blocks are toggled one after the other*, i.e. the request with command 60
hex
(=0110 0000
bin
) is before command 70
hex
(=0111 0000
bin
) and followed by 60
hex
again, etc. The response is sent accordingly. It is alternating because of a toggle bit. This process is
stopped by command 11
hex
(bit 0 is set, see below).
*Toggle bit = bit 4 (counting starts with 0)
•
Response
1st byte 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte
00 33
hex
33
hex
53
hex
39
hex
33
hex
30
hex
30
hex
2nd - 8th byte, ASCII format: 3 3 S 9 3 0 0
•
Second data block - request
1st byte 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte
70
hex
00 00 00 00 00 00 00
1st byte: 70
hex
(toggle) write response (acknowledgement) with access to all 4 data bytes
•
Second data block - response with over-detection
1st byte 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte
11
hex
4D
hex
5F
hex
32
hex
30
hex
30
hex
30
hex
33
hex
1st byte: 11 last transfer of the data block
2nd - 8the byte: M _ 2 0 0 0 3
Result of data block transfer: 33S9300M_20003
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