Communication
3.4 DPV1
CPU 31xC and CPU 31x, Technical Data
3-34 Manual, 01/2006 Edition, A5E00105475-06
Requirement for using the DPV1 functionality with DP slaves
For DPV1 slaves from other vendors, you will need a GSD file conforming to EN 50170,
revision 3 or later.
Extended functions of DPV1
• Use of any DPV1 slaves from external vendors (in addition to the existing DPV0 and S7
slaves, of course).
• Selective handling of DPV1-specific interrupt events by new interrupt blocks.
• Reading/writing SFBs that conform to standards to the data record (although this can only
be used for centralized modules).
• User-friendly SFB for reading diagnostics.
Interrupt blocks with DPV1 functionality
Table 3-13 Interrupt blocks with DPV1 functionality
OB Functionality
OB 40 Process interrupt
OB 55 Status interrupt
OB 56 Update interrupt
OB 57 Vendor-specific interrupt
OB 82 Diagnostic interrupt
Note
You can now also use organizational blocks OB40 and OB82 for DPV1 interrupts.
System blocks with DPV1 functionality
Table 3-14 System function blocks with DPV1 functionality
SFB Functionality
SFB 52 Read data record from DP slave/IO device or centralized module
SFB 53 Write data record to DP slave/IO device or centralized module
SFB 54 Read additional alarm information from a DP slave/IO device or a centralized
module in the relevant OB
SFB 75 Set any interrupts for intelligent slaves
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