The DEXPI P&ID Specification
The DEXPI P&ID Specification defines an information model for P&IDs as well as a mapping to the exchange format Proteus Schema.
Current version:
- DEXPI P&ID Specification 1.4 (PDF / HTML; 2024-12-12)
- DEXPI P&ID Specification 1.4 Supporting Material (2024-12-12; link to DEXPI Nextcloud folder containing supporting material)
Older versions:
- DEXPI P&ID Specification 1.3 (2021-06-01; 30MB)
- DEXPI P&ID Specification 1.2 (2017-05-20; 8MB)
- DEXPI P&ID Specification 1.1 (2016-05-23; 8MB)
Please submit comments, errors, or change requests in this contact form.
The DEXPI PROCESS Specification
The DEXPI Process Specification defines an information model for BFDs as well as PFDs.
Current version:
- DEXPI Process Information Model 1.0 (PDF / HTML; 2023-12-15)
- DEXPI Process Specification 1.0 Manual (2023-12-08)
- DEXPI Process Specification 1.0 Supporting Material (2023-12-08; link to DEXPI Nextcloud folder containing supporting material)
Please submit comments, errors, or change requests in this contact form.
DEXPI Information model
These pages provide alternative access to the DEXPI Information Model described in the DEXPI P&ID Specification 1.2 from 2017-05-20.
The model is available on a SPARQL server similar to the DEXPI sandbox.
More info: DEXPI Information model
Proteus XML schema
The schema is based on XSD and provides the syntactic description for XML files to be used for the import and export of piping and instrumentation diagrams.
More info: Proteus Schema for P&ID Exchange
OPC-UA Companion Specification
This specification is under active development and will ensure the compatibility of DEXPI and OPC UA and allow data transfers.
More info: OPC-UA Companion Specification
Exemplary Process and Instrumentation Diagram
The DEXPI group has agreed about the concentration on a first exemplary Process and Instrumentation Diagram for the application of data exchange.
It is based on ISO 10628:
Other example P&IDs are also available on GitLab.
