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8. Profinet IO
Dual port ethernet option board installation manual
MN032004EN October 2017 www.eaton.com
The structure of parameter requests is described in the table below:
Table 36. Parameter request
Block definition Byte n+1 Byte n n
Request header Request reference Request ID 0
Axis-No./DO-ID No. of parameters = n 2
1
st
Parameter address Attribute No. of elements 4
Parameter number (PNU)
Subindex
nth Parameter address ... 4 + 6 x (n – 1)
1
st
Parameter value(s) (only for request “change parameter”) Format No. of values 4 + 6 x n
Values
...
nth Parameter values ...
4 + 6 x n + ... +
(For-mat_n x Qty_n)
The structure of parameter responses is described in the table below:
Table 37. Parameter response
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
1 st 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)
The table below contains descriptions of parameters.
Table 38. Parameter description
Sub-index Field name Data type Description
1 Identifier (ID) Unsigned16 A bitmask with information about the parameter characteristics.
2 Number of array elements 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
standardised form, this field contains a factor 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 characters Symbolic name of the parameter.
7 Low limit Array of four Unsigned8 Limit for valid values of the parameter.
8 High limit Array of four Unsigned8 Limit for valid values of the parameter.
9 Reserved Array of two Unsigned8 Reserved, always 0.
10 ID extension Unsigned16 Not used, always 0.
11 Normalisation reference parameter Unsigned16 Parameter number, the value of which is used as normalisation reference
for the parameter whose description this is.
12 Normalisation field Unsigned16 Contains information about normalisation of this parameter.