Lenze E84DxxxxxxxxxR Manual do Utilizador descarregar pdf (Página 41)

EDS84DPNET EN 4.0 - 11/2010 L 41

Communication manual 8400 protec PROFINET

Parameter data transfer

Reading parameters from the controller

8.2.1 Response after a correct read request

Response header

Parameter format

 Note!

• Responses to read requests do not contain parameter attributes and indexes/

subindexes.

• When a multi-parameter read request is transmitted, the parameter format

and the parameter value are repeated "n" times, "n" being the number of

parameters requested.

Byte 1 Byte 2 Byte 3 Byte 4

Request reference

(mirrored)

Response identifier Axis

(mirrored)

Number of indices

Field Data type Values

Request reference U8 Mirrored value of parameter request

Response identifier U8 0x01: Parameter read

Axis U8 0x00 or 0x01

Number of indices U8 0x"n" (n = number of parameters requested)

Byte 5 Byte 6

Format Number of values

Field Data type Values

Format U8 0x02: Integer8

0x03: Integer16

0x04: Integer32

0x05: Unsigned8

0x06: Unsigned16

0x07: Unsigned32

0x09: Visible string

0x0A: Octet string

0x40: Zero

0x41: Byte

0x42: Word

0x43: Double word

Number of values U8 • 0x01

• Number of requested subindices. (If there is more

than one subindex, only the parameter value is

repeated.)

• In the case of string codes, the number of characters

is entered here.

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 83 84

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