Lenze E84DGFCC Manual do Utilizador descarregar pdf (Página 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

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 110 111

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Lenze E84DGFCC Manual do Utilizador Página 59