22
english
4
Configuration (continued)
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
Bytes 9…n–2
Byte n–1 Byte n
SD
LE
LEr
SD
DA
SA
FC
DSAP
SSAP
DU
FCS
ED
16#68
X
X
16#68
16#8
16#8
X
16#33
16#33
See
Tab. 4-8 and
X
16#16
Tab. 4-7: Telegram
Write.req
Byte No. Data type
Meaning
Description
Example:
Write
PNU 2000.0
Example:
Read
PNU 2000.0
0
Byte
DP request
Service code 16#5F = Write
16#5F
16#5F
1
Byte
Slot
0
16#0
16#0
2
Byte
Index
47
16#2F
16#2F
3
Byte
Length
Length of message to write
16#14
16#14
4
Byte
Request Reference
Freely selectable reference
16#1
16#1
5
Byte
Request ID
16#01 = Read
16#02 = Write
16#2
16#1
6
Byte
Axis / DO-ID
16#00 = PROFIBUS access
16#0
16#0
7
Byte
No. of parameters
Limited by telegram length
16#01…16#27
16#1
16#1
8
Byte
Attribute
Type of elements to read/write
16#10 = Value
16#30 = char[16] (Text)
16#10
16#10
9
Byte
Number of elements
16#01…16#EA (1…234)
16#1
16#1
10…11
Word
Parameter number
16#7d0
#16#7d0
12…13
Word
Subindex
16#0
16#0
14
Byte
Data format
16#40 = Length 0
16#41 = Length 1 Byte
16#42 = Length 2 Bytes
16#43 = Length 4 Bytes
16#43
16#43
15
Unsigned 16
No. of values
No. of values specified by data format
16#1
16#1
16…
Data format
Values
Values to read / write
16#3E8
Tab. 4-8: DU in the Write.Req.
Byte No. Data type
Meaning
Description
Value
0
Byte
Function code
Service code
16#5F = Write
1
Byte
Slot
16#0
2
Byte
Index
I&M parameter channel
255
3
Byte
Length
No. of values to send
16#4
4
Byte
Reserved
16#8
5
Byte
Reserved
16#0
6…7
Word
Parameter No.
Number of the parameter
16#FDE8 = I&M Parameter
65000
Tab. 4-9: Opening the DU in the
Write.req
for I&M (Index 255)
BTL7-T500-…
Configuration Guide
Содержание BTL7-T500 Series
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