5
vacon • 32
PROFINET IO protocol
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
The structure of parameter responses is described in the table below:
Table 29.
Block definition
Byte n+1
Byte n
n
Response header
Request Ref. mirrored
Response ID
0
Axis-No. / DO-ID mirrored
No. of Parameters = n
2
1st Parameter Value(s)
(only for request
"Request")
Format
No. of Values
4
Values or Error Values
...
nth Parameter Values
...
4 + ... +
(Format_n x
Qty_n)
Parameter response
The table below contains descriptions of parameters.
Table 30. Parameter description
nth Parameter Values
...
4 + 6 x n + ... +
(For-mat_n x
Qty_n)
Sub-
index
Field name
Data type
Description
1
Identifier (ID)
Unsigned16
A bitmask with information about the
parameter characteristics.
2
Number of array ele-
ments
Unsigned16
For array parameters, the number of
elements in the array.
3
Standardisation
factor
FloatingPoint (IEEE
754)
If the information represented by the
parameter can be converted into a stan-
dardised form, this field contains a fac-
tor for this conversion.
4
Variable attribute
Array of two
Unsigned8
Contains two index numbers for
describing the parameter information.
5
Reserved
Array of four
Unsigned8
Reserved, always 0.
6
Name
ASCII string, 16 char-
acters
Symbolic name of the parameter.
7
Low limit
Array of four
Unsigned8
Limit for valid values of the parameter.
Block definition
Byte n+1
Byte n
n