Stober SD6 - Page 31

ID 442710.00 31WE KEEP THINGS MOVING
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6
Operation manual PROFINET
Header "Response"
A Response header is structured as follows.
"Attribute" and "Format" elements
The "Attribute" element describes the access to a parameter structure (e.g. to
values, descriptive texts, etc.) and the "Format" element describes the transfer
format of a parameter.
The values of both elements must be combinable as follows.
Element Data type Value, V.-range Meaning
Response_
reference
Byte 00
hex
– FF
hex
Freely selectable number for
a response
Response_ID Byte 01
hex
Positive response to a read
request
02
hex
Positive response to a write
request
81
hex
Negative response to a read
request
82
hex
Negative response to a write
request
All other values Reserved
Axis_number Byte 0 – 3 Addressing the axis
Number_of_
parameters
Byte 1 Number of parameters that
should be processed
All other 
values
Reserved
Format Byte 08
hex
Transfer format: floating point
41
hex
Transfer format: byte
42
hex
Transfer format: word
43
hex
Transfer format: double word
Number_of_
values
Byte 1 Number of values to be
processed
Value Dint Parameter value or error
code in the event of an error
(see "Error values" table)
Attribute
Format
08
hex
= Floating
comma
41
hex
=
Byte
42
hex
=
Word
43
hex
= DWord
10
hex
=
Value
Not allowed Not allowed Not allowed Scaled value
for all
parameters
represented as
an integer 
(4 bytes)
80
hex
= Raw
value
Unscaled raw
value, specially for
floating comma
data type 
(4 bytes)
Unscaled raw
value,
specially for
Bool data
types, Word,
I8 (1 byte)
Unscaled
raw value,
specially for
Word data
types, I16 
(2 bytes)
Unscaled raw
value, specially
for DWord data
types, I32 
(4 bytes)
81
hex
=
Integer4
Not allowed Not allowed Not allowed Scaled value
for all
parameters
represented as
an integer 
(4 bytes)
82
hex
=
Floating
comma
Scaled
representation for
all parameters as
floating comma 
(4 bytes)
Not allowed Not allowed Not allowed