Lenze E94AYCCA - Manual (Page 66)

E94AYCCA communication manual (CANopen®)
Parameter data transfer
User data
66
L
EDS94AYCCA EN 5.0 - 06/2012
9.2.3 Data 1 ... data 4
A maximum of 4 bytes is available for parameter value entries. The bytes are assigned as
follows, depending on the data format:
Example
For a code with the scaling factor "100" and the data format U32 the value "123.45" is to
be transmitted.
Calculation:
 Value to be transmitted = scaling factor x value
 Data
(1 ... 4)
= 100 x 123.45 = 12345 (0x00 00 30 39)
Entries:
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
5th byte 6th byte 7th byte 8th byte
Parameter value (1 byte) 0x00 0x00 0x00
Parameter value (2 bytes) 0x00 0x00
Low byte High byte
Parameter value (4 bytes)
Low word High word
Low byte High byte Low byte High byte

Note!
The Table of attributes
( 149)
contains a scaling factor for Lenze parameters in
the "factor" column. The scaling factor is important for the transfer of parameter
values which are represented with one or several decimal positions in the
parameter list.
When the scaling factor is > 1, the value must be multiplied by the scaling factor
before being transmitted to be able to transmit the value as an integer. On the
SDO client side, the integer must by divided by the scaling factor again to obtain
the original value with decimal positions.
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
0x39 0x30 0x00 0x00