BTL5-T110...
Configuration and Profibus Connection –
Transducer Class 3/4
english
22
The following table shows the structure of the DU for a parameter channel value Index 47. If the I&M parameters are
to be read, the structure in Table 6-5 must be selected.
6
Startup (cont.)
Table 6-3: Structure of the DU in Write.req (Index 47)
Byte
number
Data type
Meaning
Description
Value
Example
PNU 2000,0
write
Example
PNU 2000,0
read
0
Unsigned8
DP request
Exactly one function
code is assigned to
each service.
0x5F = Write
0x5F
0x5F
1
Unsigned8
Slot
0
0x0
0x0
2
Unsigned8
Index
47
0x2F
0x2F
3
Unsigned8
Length
Length of the
message to be
written.
0x14
0x14
4
Unsigned8
Request
Reference
0x01
0x01
0x01
5
Unsigned8
Request ID
0x01 = Read
0x02 = Write
0x02
0x01
6
Unsigned8
Axis / DO-ID
0x00 = Profibus
access
0x00
0x00
7
Unsigned8
Number of
parameters
Is limited by the DP-
V1 telegram length.
0x01...0x27
Default 0x01
0x01
0x01
8
Unsigned8
Attribute
Type of
reading/writing
attribute.
0x10 = Value
0x30 = Text char[16]
0x10
0x10
9
Unsigned8
Number of
elements
Number of elements
to be read/written
0x01...0xEA
(1 .. 234)
0x01
0x01
10 - 11
Unsigned16
Parameter
number
Number of the
parameter to
read/write, see 8.3
Acyclic data.
0x7d0
0x7d0
12 - 13
Unsigned16
Subindex
Index of the
parameter to be
read/written.
0x0
0x0
14
Unsigned8
Data format
Format of the
parameter to be
read/written, see
Table 6-4: DP-V1
data formats
0x43
0x43
15
Unsigned16
Number of
values
Number of values
specified by the data
format.
0x1
0x1
16 - ..
Data format
Values
Values to be
read/written.
Ex.1000 =
0x3E8
