Lenze DDS System bus CAN for PLC Manual do Utilizador descarregar pdf (Página 26)

System bus (CAN) for Lenze PLC devices

General information

2−14

PLC−Systembus EN 2.0

2.7.1.4 Data of the parameter (data 1 ... data 4)

Identifier

Command

code

Index

Subindex Data 1 Data 2 Data 3 Data 4

Low byte High byte

For the data of the parameter up to 4 bytes (data 1 ... data 4) are provided.

· The data are presented in the left−justified Intel format with data 1 as LSB and data 4 as MSB

(see example).

Example:

For a code in the "Fixed32" data format, the value "20" is to be transmitted.

· "Fixed32" is a fixed point format with 4 decimal positions. Therefore the value has to be

multiplied by 10000:

Data

1...4

+ 20 @ 10000 + 200000 + 00 03 0D 40

hex

11bit 8 bytes user data

Identifier

Command

code

Index

Subindex Data 1 Data 2 Data 3 Data 4

Low byte High byte

hex

(LSB) (MSB)

Tip!

The parameters of the Lenze devices are stored in different formats.

Detailed information on this subject can be found in the Manual for the respective PLC in the chapter

"Appendix − Table of attributes".

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Lenze DDS System bus CAN for PLC Manual do Utilizador Página 26