Lenze E84DxxxxxxxxxR - Manual (Page 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.