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6
PROFIBUS-DP-V1 Functions
Structure of the DP-V1 parameter channel
Manual – MOVI-PLC
®
basic DHP11B.. controller
67
Query parameter response
The following table shows the code of the
Write.req
user data including the DP-V1
header.
Positive response to "Write Parameter volatile"
Negative
parameter
response
The following table shows the coding of a negative response of a MOVILINK
®
service.
Bit 7 is entered in the response ID if the response is negative.
Field
Value
Description
Function_Num
Read.req
Slot_Number
X
Slot_Number not used
Index
47
Index of data set
Length
240
Maximum length of response buffer in DP master
Service
Read.response
Slot_Number
0
Random, (is not evaluated)
Index
47
Index of the data set; constant index 47
Length
4
4 byte user data in response buffer
Byte
Field
Value
Description
0
Response reference
0x01
Reflected reference number from the parameter setting
request
1
Response ID
0x40
Positive MOVILINK
®
response
2
Axis
0x00
Reflected axis number; 0 = single axis
3
No. of parameters
0x01
1 parameter
Service
Read.response
Slot_Number
0
Random, (is not evaluated)
Index
47
Index of the data set; constant index 47
Length
8
8 byte user data in response buffer
Byte
Field
Value
Description
0
Response reference
0x01
Reflected reference number from the parameter setting
request
1
Response ID
0xC0
Negative MOVILINK
®
response
2
Axis
0x00
Reflected axis number; 0 = single axis
3
No. of parameters
0x01
1 parameter
4
Format
0x44
Error
5
No. of values
0x01
1 error code
6..7
Error value
0x0811
MOVILINK
®
return code
e.g. ErrorClass 0x08, Add. Code 0x11
(
Æ
MOVILINK
®
table return codes for DP-V1)
0
0
I