Abstract:
The invention relates to a method, an engineering system and a programming device which simplify the projection and/or configuration of a project which represents an automation device for controlling a technical facility. For this purpose, the project engineer simply deposits in a project references that indicate which project components have to be deposited. Copies of said project components are automatically made and are deposited in the project on the programming device. The invention reduces error-proneness and projection complexity.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS  
       [0001]     This application claims priority to the German application No. 10331312.5, filed Jul. 10, 2003 and to the International Application No. PCT/EP2004/007593, filed Jul. 9, 2004 which are incorporated by reference herein in their entirety. 
     
    
     FIELD OF INVENTION  
       [0002]     The invention relates to a method for designing and/or configuring a project which represents automation equipment for controlling a plant, project design blocks being stored in a library in a memory of an engineering system, which memory is connected to a programming device of the engineering system, and copies of the project design blocks required for designing and/or configuring the project being storable on the programming device. The invention also relates to an engineering system for designing and/or configuring a project and a programming device for an engineering system of this kind.  
       BACKGROUND OF INVENTION  
       [0003]     An engineering system of the kind referred to at the beginning is known from Siemens Catalogue ST PCS 7, Chapter 3, May 2003 edition. This engineering system is a component of a process control system which controls a plant and is, in particular, provided for the configuration of hardware and/or software components, for the design of communications networks and continuous and sequential process operations, and also for the design of operating and observation strategies and for the creation of recipes for batch processes. The project design blocks required for designing and/or configuring a project which represents the automation equipment to be designed are components of a library which can be stored in a memory of a programming device or of a server. Furthermore, the programming devices, which are involved in design and/or configuration in a multiuser operation for example, can access this common library. The project design blocks of the automation equipment to be designed that are needed for a project comprising a plurality of part projects are saved in the form of copies in the programming devices, and design engineers have to copy the project design blocks themselves. These copies stored locally on the programming devices enable each part project to be processed autonomously, and an online connection to the server&#39;s library is initially no longer required. It is possible that the library will be updated, that is to say, new versions (revision levels) of these project design blocks will be stored in the library, in which case the design engineers are responsible for again storing appropriate copies of these new revision levels in the programming devices. This procedure is prone to error and involves a considerable amount of work in respect of the handling of the project design blocks.  
       SUMMARY OF INVENTION  
       [0004]     An object of the present invention is to simplify a method for designing and/or configuring a project.  
         [0005]     This object is achieved by the claims.  
         [0006]     It is advantageous for a design engineer to have to store only references in a project, and the copies of the project design blocks are then automatically copied and stored in the project on the programming device. Proneness to error and project design effort are thereby reduced.  
         [0007]     In an embodiment of the invention, copies already stored in the project can, if so required, be updated by copies, updating being carried out only on the basis of a user request. This makes it possible both to provide the project with current project design blocks and to prevent the updating of, for example, parts of a project which are already certified. In the latter case, updating would necessitate the re-certification of these part projects.  
         [0008]     In a further embodiment of the invention, it is possible to prevent existing copies in a project from being inadvertently updated. Assuming that already designed and certified automation equipment is to be expanded, in this case the references relating to project design blocks in the library which are a component of the already certified project are advantageously erased. By contrast, references relating to project design blocks in the library which are required in the course of the expansion are not erased, so that current project design blocks can be used for this expansion.  
         [0009]     According to another embodiment, it is possible to ensure that the copies of a project design block needed for the part projects have the same revision level.  
         [0010]     Further advantageous embodiments of the invention will emerge from further independent claims. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0011]     The invention, amplifications and developments are described in more detail and explained below with reference to the drawing, which illustrates an exemplary embodiment of the invention and in which:  
         [0012]      FIG. 1  is an engineering system, and  
         [0013]      FIG. 2  is a process control system. 
     
    
     DETAILED DESCRIPTION OF INVENTION  
       [0014]     Reference is made first to  FIG. 2 , which shows a process control system  1  which is known per se. The process control system  1  has an engineering system  2 , an operating and observation system  3  and designed and configured automation equipment  4 , the engineering system  2  being provided for the design and/or configuration of automation equipment. The automation equipment  4 , which is connected to the engineering system  2  and to the operating and observation system  3  via a bus system  5  and bus interfaces (not shown here), comprises different programmable controllers  6 , actuators  7  and sensors  8 , as well as further automation components  9  required for the control of a plant. The programmable controllers  6 , which are interconnected via the bus system  5  and/or further suitable bus systems  10 , can be of different designs. Thus, programmable controllers are usually provided to perform small, moderate and relatively large automation tasks within the automation equipment  4 , micro-programmable controllers being usable for the performance of small automation tasks, programmable small controllers being usable for the performance of moderate automation tasks, and high-performance programmable controllers being usable for the performance of more complex automation tasks.  
         [0015]     The hardware and software components, that is to say the programmable controllers, operating and observation devices, bus systems, actuators and sensors, and the control programs with which the automation equipment  4  is to be provided, are dependent on the complexity of the plant to be controlled and of the control task. Furthermore, the requisite hardware and software components of the automation equipment  4  can be designed and/or configured by the engineering system  2 .  
         [0016]     Reference is made below to  FIG. 1 , which illustrates an engineering system  11  for the design and/or configuration of hardware and software components of automation equipment. For this purpose, in the present example the engineering system  11  has a management unit  12  and four programming devices  13 ,  14 ,  15 ,  16 , the management unit  12  and the programming devices  13 ,  14 ,  15 ,  16  being interconnected via a bus system  17 . The management unit  12 , which can naturally be part of one of the programming devices  13  . . .  16 , divides a project, which represents the automation equipment and which, on the basis of the automation task to be performed, incorporates the information concerning the requisite hardware and software components, into four part projects Tp 1 , Tp 2 , Tp 3 , Tp 4 . Of these part projects, the part project Tp 1  is to be executed by the programming device  13 , the part project Tp 2  by the programming device  14  and, accordingly, the part project Tp 3  by the programming device  15  and the part project Tp 4  by the programming device  16 . For this purpose, all the hardware and software components of the automation equipment required for design and/or configuration can be virtually displayed on display devices of the programming devices  13  . . .  16 . For example, it is possible to display on the display devices views of the units needed for the programmable controllers, for the operating and observation systems and for the further hardware components such as input and output modules, field devices and bus systems, as well as views of software blocks for creating control programs for the programmable controllers. For this purpose, project design blocks for these automation components are stored for a design engineer in the form of software objects in a control library of the management unit  12 . The part project Tp 1  comprises the design of an operating and observation station OS 1 ; the part project Tp 2  comprises the design of operating and observation stations OS 2 , OS 3 ; the part project Tp 3  comprises the design of a programmable controller AG 1 ; and the part project Tp 4  comprises the design of programmable controllers AG 2 , AG 3 . Furthermore, the part projects Tp 1  and Tp 3 , the part projects Tp 1  and Tp 2  and the part projects Tp 2  and Tp 4  are functionally linked, this being indicated in  FIG. 1  by means of arrows. For example, the part projects Tp 2  and Tp 4  are functionally linked such that batch data of the programmable controllers AG 2 , AG 3  are to be exported to the operating and observation stations OS 2 , OS 3  or such that connection data are to be transferred between the programmable controller AG 1  and the operating and observation station OS 1 . In a memory (not shown here) of the management unit  12  there are stored centrally, in a library, project design blocks Pb 1 , Pb 2 , Pb 3 , . . . Pbn, which are provided for the design an d/or configuration of the part projects Tp 1 , . . . , Tp 4  on the programming devices  13 ,  14 ,  15 ,  16 .  
         [0017]     It is assumed that a user of the programming device  13  needs copies of the project design blocks Pb 1  and Pb 4  for the design of the part project Tp 1 , and that a further user of the programming device.  15  needs copies of the project design blocks Pb 1 , Pb 2 , Pb 3  and Pb 4  for the design of the part project Tp 3 . For this purpose, during a project design phase the user of the programming device  13  using a suitable software tool stores in a memory of the programming device  13  a reference  18   a , which indicates to a software routine of the management unit  12  that copies of the project design blocks Pb 1  and Pb 4  are to be stored on the programming device  13 . The software routine is functionally linked to the software tool and can be a component of this software tool. A user of the programming device  15  accordingly inputs into a memory of this programming device  15  a reference  18   b , which indicates to the software routine of the management unit  12  that copies of the project design blocks Pb 1 , Pb 2 , Pb 3  and Pb 4  are to be made on the programming device  15  and are to be stored in the programming device  15 . These references  18   a ,  18   b  are read out by the software routine, which automatically creates a copy of each of the project design blocks Pb 2 , Pb 3  and two copies of each of the project design blocks Pb 1 , Pb 4 . Said routine then transmits appropriate copies to the programming devices  13 ,  15 , which store these copies in memories of these programming devices  13 ,  15 . It is possible that a copy of a project design block is already saved on a programming device and the programming device is connected to the bus  17  to continue the project design work. To prevent this copy from being automatically overwritten by a new copy transmitted by the management unit  12 , a comparison routine of the programming devices  13 ,  14 ,  15 ,  16  initially compares the revision levels of the copies transmitted by the management unit  12  with the revision levels of the copies already stored. The present example shows that a reference  18   c  stored on the programming device  14  indicates to the software routine of the management unit  12  that a copy of the project design block Pb 5  is to be transmitted to the programming device  14 , and an identifier  19  in the reference  18   c  indicates to the software routine that said routine initially has to communicate the revision level of the project design block Pb 5 . The comparison routine of the programming device  14  compares the revision levels and, in case the revision level of the project design block Pb 5  stored in the library should be later than the revision level of the copy stored in the programming device  14 , a new copy of the project design block Pb 5  is created, and the copy stored in the programming device  14  is overwritten by the new copy. It is then necessary for the user to request this new copy, e.g. by the comparison routine first displaying the compare result to the user on a display unit of the programming device  14  and inviting the user to request the new copy, e.g. by means of an appropriate keyboard entry. It is possible that copies of a project design block are intended to have the same revision level on all the programming devices. In this event, the user request is display ed on all the programming devices, a copy being transmitted to a programming device only if all the users of the programming devices acknowledge this request.  
         [0018]     In the following it is assumed that a copy of a project design block is already saved on a programming device and that, in any event, it must be ensured that this copy is not updated, i.e. is not overwritten by a new copy. To prevent this copy from being inadvertently updated, the reference associated with this project design block can be cancelled. In the example it is assumed that, in the programming device  16 , a reference  18   d  to the project design block Pb 7  is cancelled, this being indicated in the drawing by the struckthrough reference characters Pb 7 . This means that the user of the programming device  16  works with the local copy of the project design block Pb 7  for the design of the part project Tp 4  and does not wish to have this copy updated. It is, moreover, advisable to cancel the reference  18   d  before setup of the connection between the programming device  16  and the management unit  12 . In the example, what is required is merely an update of the copy of the project design blocks Pb 6 , Pb 8  on the programming device  16 , this being indicated to the software routine of the management unit  12  by means of a reference  18   e.