Method and Arrangement for Planning and/or Programming a Project of an Industrial Automation Arrangement

A method for at least one of planning and programming a project of an industrial automation arrangement by a plurality of users, a workstation including at least one application for at least one of the planning and the programming respectively being associated with each of the users, the project consisting of a plurality of objects, and at least one of the objects of the plurality of objects being accessed by a plurality of the workstations, the method comprising the steps of:

• grouping at least a number of the plurality of objects into object groups;
• associating each of the object groups with a workstation;
• storing each of the objects in an object group in a physical memory of the workstation associated with this object group;
• associating a key with each respective object in the object group and storing each respective associated key in a data structure which specifies, for each respective associated key, an identification for that workstation in whose physical memory the object group associated with the key and the objects in said object group are stored;
• and
• accessing, by a workstation, the data structure by determining a storage location information associated with the key of the associated object group using the access and accessing the object using said storage location.

An arrangement for at least one of planning and programming a project of an industrial automation arrangement by a plurality of users, the arrangement comprising:

• a workstation including at least one application for at least one of the planning and the programming respectively associated with each of the plurality of users, the project comprising of a plurality of objects, and at least one object of the plurality of objects being accessible by a plurality of the workstations;
• wherein the objects are grouped into object groups;
• wherein the object groups with the objects are distributed among physical memories of the plurality of workstations;
• and
• wherein a key in a data structure is associated with each object group, that workstation in whose physical memory the objects in a relevant object group are stored respectively being associated with the key in the data structure.