Lenze E84DGFCC - Manual (Page 59)

EDS84DMOTCAN EN 3.0 - 11/2011
L
59
Communication manual 8400 motec CANopen
Parameter data transfer
User data
9.2.3 Data 1 ... data 4
Maximally 4 bytes are available for parameter value entries. Depending on the data
format, they are assigned as follows:
Example
A value of "123.45" is to be transmitted for a code, unit: "%" (e.g. C00039/1: "Fixed setpoint-
JOG1").
Parameters with the "%" unit have two decimal positions and hence a scaling factor of
"100".
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 "Factor" column of the Table of attributes
( 87)
contains a scaling factor for
all Lenze parameters. The scaling factor is relevant to the transfer of parameter
values which have one or more decimal positions in the parameter list.
If the scaling factor is > 1, the value must be multiplied by the indicated scaling
factor prior to transmission to be able to transfer the value as an integer. At the
SDO client end, the integer must be divided by the scaling factor to obtain the
original value including decimal positions again.
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