BS EN 62424:2009 2010
$215.11
Representation of process control engineering. Requests in P&I diagrams and data exchange between P&ID tools and PCE-CAE tools
| Published By | Publication Date | Number of Pages |
| BSI | 2010 | 140 |
This International Standard specifies how process control engineering requests are represented in a P&ID for automatic transferring data between P&ID and PCE tool and to avoid misinterpretation of graphical P&ID symbols for PCE.
It also defines the exchange of process control engineering request relevant data between a process control engineering tool and a P&ID 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 P&ID’S will be 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 (e. g. vessels, valves, columns, etc.), their implementation and rules for the reference designation system are not in the scope of this standard. These rules are independent from this standard.
Clause 7 specifies the data flow between the different tools and the data model CAEX.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | CONTENTS |
| 10 | INTRODUCTION |
| 11 | Figures Figure 1 โ Information flow between P&ID and PCE tool |
| 12 | 1 Scope 2 Normative references 3 Terms and definitions |
| 16 | 4 Abbreviations |
| 17 | 5 Conformity Tables Table 1 โ Abbrevations |
| 18 | 6 Representation of PCE requests in a P&ID 6.1 PCE request and PCE loop |
| 19 | 6.2 Objectives and principles 6.3 Requirements for the identification and representation of PCE requests Figure 2 โ Organization of PCE requests |
| 20 | Figure 3 โ General representation of a PCE-Request in a P&ID Figure 4 โ Multi-sensor element |
| 21 | Figure 5 โ Local interface Figure 6 โ Manually operated switch in local control panel Figure 7 โ Pressure indication in central control room |
| 22 | Table 2 โ PCE categories |
| 23 | Table 3 โ PCE processing function |
| 24 | Table 4 โ Sequence combinations Table 5 โ PCE processing functions for actuators |
| 25 | Figure 8 โ Example of PCE request identification Figure 9 โ Example of flow measurement with indication in the CCR delivered by vendor A specified by typical A20 Figure 10 โ Example of pH-measurement with indication in the CCR |
| 26 | Figure 11 โ Example of flow measurement with indication in the CCR and high and low alarm Figure 12 โ Flow measurement with indication in the CCR and high alarm and a high-high switching function Figure 13 โ Flow measurement with indication in the CCR and a high-high switch limit, a high alarm, a low alarm and a low-low switch limit for a safety function |
| 27 | Figure 14 โ GMP relevant, safety relevant and quality relevant flow measurement with indication in the CCR Figure 15 โ Control function Figure 16 โ Safety relevant control function |
| 28 | 7 Neutral data exchange of PCE relevant P&ID information 7.1 Objectives 7.2 Meaning of P&ID elements |
| 29 | 7.3 PCE relevant information of P&ID tools Figure 17 โ P&ID elements and associations (PCE relevant items are shown in dark lines) |
| 30 | 7.4 Formal description of PCE relevant information of P&ID tools Figureย 18 โ Process data model (PCE relevant items are shown in dark lines) |
| 32 | Figure 19 โ PCE request data model |
| 34 | Figure 20 โ Example of two plant sections and a signal connection via external interfaces Figure 21 โ Simplified CAEX model of indirect links between PCE requests across different plant hierarchy items |
| 35 | Figure 22 โ Example of two plant sections and a direct connection |
| 36 | Figure 23 โ Simplified CAEX model of direct links between PCE requests across different plant hierarchy items |
| 37 | 8 Additional PCE attributes Table 6 โ P&ID attributes relevant in PCE environment Table 7 โ Data handling attributes |
| 38 | Annex A (normative) CAEX โ Data model for machine information exchange Table A.1 โ XML notation conventions |
| 39 | Table A.2 โ CAEX data types and elements |
| 44 | Figure A.1 โ CAEX architecture of a SystemUnitClass Figure A.2 โ Example of a SystemUnitClassLib |
| 46 | Figure A.3 โ Examples of Attributes |
| 48 | Figure A.4 โ Examples of an InterfaceClassLib |
| 49 | Figureย A.5 โ Usage of Links |
| 50 | Figure A.6 โ Example of a RoleClassLib |
| 52 | Figure A.7 โ CAEX Role Concept Figure A.8 โ CAEX data definition for use case 1 |
| 53 | Figure A.9 โ CAEX data definition for use case 2 Figure A.10 โ CAEX data definition for use case 3 |
| 55 | Figure A.11 โ CAEX data definition of a MappingObject Figure A.12 โ Example for a hierarchical plant structure |
| 56 | Figure A.13 โ CAEX data structure Figure A.14 โ Distribution of data in several CAEX files Figure A.15 โ Referencing of external CAEX files |
| 57 | Figure A.16 โ Example of how to use alias names |
| 58 | Figure A.17 โ Multiple crossed structures |
| 111 | Annex B (informative) Examples of PCE requests Figure B.1 โ Local level indication, 1 process connection Figure B.2 โ Local level indication, 2 process connections Figure B.3 โ Local flow indication Figure B.4 โ Local pressure indication Figure B.5 โ Local temperature indication |
| 112 | Figure B.6 โ Local control panel, pressure indication, high alarm Figure B.7 โ Local temperature indication, CCR temperature high alarm Figure B.8 โ Local pressure indication, CCR pressure high alarm and switch Figure B.9 โ CCR flow indication, device information: Orifice Plate Figure B.10 โ CCR pressure indication, low, low low and high alarm |
| 113 | Figure B.11 โ CCR temperature indication and registration Figure B.12 โ CCR level indication and registration, 1 process connection Figure B.13 โ CCR level indication, 2 process connections Figure B.14 โ Two flow indications and flow ratio control in CCR |
| 114 | Figure B.15 โ CCR flow indication and high alarm, flow control, control valve with extra interlock and open/close indication Figure B.16 โ Local pressure indication, CCR pressure indication, high alarm and high high safety relevant switch Figure B.17 โ Local pressure indication, CCR pressure indication, alarms and switches Figure B.18 โ CCR pressure indication, high and low alarm, safety relevant switch action on on/off valve |
| 115 | Figure B.19 โ Switched valve with on/off indication and switching action, safety relevant switched valve Figure B.20 โ Pressure restriction Figure B.21 โ Flow restriction |
| 116 | Figure B.22 โ PT compensated flow control, safety-relevant pressure switch (two out of three (2oo3) shutdown), switched control valve with on/off indication and switching action at open position Figure B.23 โ CCR temperature control, additional manual switch actions from CCR with indication and local control panel |
| 117 | Figure B.24 โ Motor typical, local on/off control, CCR off control, current, fault with alarm and running indication Figure B.25 โ Multivariable controller |
| 118 | Figure B.26 โ On/off valve with position indication Figure B.27 โ On/off valve with safety relevant switch and position indication Figure B.28 โ Level control with continuous controller Figure B.29 โ Level control with on/off switch |
| 119 | Figure B.30 โ Cascade control for temperature as control input, flow control as follow-up controller Figure B.31 โ Safety directed high control to a subsequent valve, manual control for reset function and manual control for manual/automatic switch of the valve, valve with open/close indication and safety-relevant switch to subsequent valve Figure B.32 โ Flow control in CCR Figure B.33 โ Temperature control with high alarm and high switch |
| 120 | Figure B.34 โ Manual control from CCR Figure B.35 โ Flow measurement with display and alarms in CCR, high high switch on process control function and switch on/off valve Figure B.36 โ Local P-/F-/T-/S- control without auxiliary power (stand-alone) |
| 121 | Annex C (normative) Full XML schema of the CAEX Model |
| 130 | Annex D (informative) CAEX modelling examples Figure D.1 โ Example CAEX interface library |
| 131 | Figure D.2 โ Example CAEX role library |
| 133 | Figure D.3 โ Example to be mapped with CAEX |
| 134 | Figure D.4 โ CAEX model of the example described in Figure D.3 |
| 137 | Bibliography |
