By naming the tags the same in two different TOP Server projects the Client Program can be configured once for connection to the tags and different TOP Server projects can be loaded for different PLC's and the Client Program doesn't have to be modified. In cases were an application remains the same or is similar but the actual PLC type connecting to is different at different locations using Static tags can be a great advantage.
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Because the TOP Server supports a number of different drivers there can also be advantages to projects that are used with different PLC systems. One is the ability to quickly test and verify communications with the Quick Client as noted above. With new projects there can be advantages to using Static tags. When converting a current project to the TOP Server most people go with Dynamic tags as the projects are normally configured with PLC address.
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It is also possible to export tag addressing as a CSV file both from the OPC Quick client and the TOP Server and formatting these exports for importing into Client software to prevent double entry of tags. Static tags can be a great advantage when a client is able to browse for OPC tags as configuration in the client is simply a matter of pointing and clicking. This is a good way to check communication on specific addresses without effecting other connected clients. When using static tags in larger projects it is also recommended that you create an OPC Quick Client project that connects of just a few tags under each device for the same purpose without subscribing to all the tags in the server.
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It is always recommended that at least one tag under each device is created, so that communications can be quickly checked by connecting with the OPC Quick Client from the TOP Server by clicking on the OPC/hammer icon. The TOP Server also supports a number of ways of adding tags quickly with the copy function or duplicating tags after one is created to help speed the tag creation process. Because a number of the drivers support pulling tags from PLC Programming software or the PLC itself as in the case of the AB ControlLogix, adding tags in the server can be a very effective way to build a project. Static tags are when tags are added into the TOP Server then these tag names and not the PLC address is used in the client connecting to the TOP Server. In these cases, dynamic tags addressing is most effective for a project. In other cases individuals have developed effective ways of importing tags quickly from programming software right into the clients, so adding tags in the server is an additional step. In many cases projects are developed using dynamic tags because there is no OPC browsing method available, so tags have to be added manually in the Client and Putting tags in the Server then the client is seen as double work. These are dynamic because they are added during runtime only when the client connects and makes a connection. Dynamic tags are when the PLC/device tag in the client is the same as the PLC Address and does not match any actual tag in the TOP Server.