Profichip VPC3+S - Set _Prm (SAP 61)

PROFIBUS DP Extensions 6
VPC3+S User Manual
Revision 1.04
45
Copyright © profichip GmbH, 2012
Structure of the Set_Slave_Add Telegram
The net data are stored as follows in the SSA buffer:
Byte
Bit Position
Designation
7
6
5
4
3
2
1
0
0
New_Slave_Address
1
Ident_Number_High
2
Ident_Number_Low
3
No_Add_Chg
4
:
243
Rem_Slave_Data
additional application
specific data
Figure 6-4: Structure of the Set_Slave_Add Telegram
6.2.2 Set _Prm (SAP 61)
Parameter Data Structure
The VPC3+S evaluates the first seven data bytes (without
User_Prm_Data), or the first eight data bytes (with User_Prm_Data). The
first seven bytes are specified according to the standard. The eighth byte is
used for VPC3+S specific characteristics. The additional bytes are available
to the application.
If a PROFIBUS DP extension shall be used, the bytes 7-9 are called
DPV1_Status and must be coded as described in section 7,
“PROFIBUS DP Extensions”. Generally it is recommended to start the
User_Prm_Data first with byte 10.