This specification describes how process control engineering requests are represented in a PI diagram. It also defines the exchange of process control engineering request relevant data between a process control engineering tool and a PI tool by means of a data transfer language (called CAEX). These provisions apply to the export/import applications of such tools. The representation of the PCE functionality in PI diagrams is defined by a minimum number of rules to clearly indicate their category and processing function@ independent from the technique of realization (see Clause 6). The definition of graphical symbols for process equipment (for example vessels@ valves@ columns@ etc.)@ their implementation and rules for the numbering system are not the scope of this standard. These rules are independent from this standard and can be found@ for example@ within DIN EN ISO 10628 or ISO 14617. Clause 7 specifies the data flow between the different tools and the data model CAEX.
IEC 62424:2008 history
2016IEC 62424:2016 Representation of process control engineering - Requests in P&I diagrams and data exchange between P&ID tools and PCE-CAE tools
2008IEC 62424:2008 Representation of process control engineering - Requests in P&I diagrams and data exchange between P&ID tools and PCE-CAE tools