FactoryTalk View SE applications
FactoryTalk View
Site Edition applications can be either network or local.In a network or distributed application, the software programs that enable the application
to run can be distributed across a network on different computers. These programs include,
for example, FactoryTalk Directory, the
FactoryTalk View SE
Server software that
the HMI server requires, the FactoryTalk View SE
Client, OPC data servers, and so
on.In a local or stand-alone application, all software programs are located on a single computer, there can only be one HMI server, and there are no areas.
A network distributed application consists of:
- FactoryTalk Directorythat lets the parts of an application to find each other on a computer, or on the network. For example, to access graphic displays on HMI servers,FactoryTalk View SEclients use FactoryTalk Directory to find which computers on the network are hosting HMI servers.
- HMI serversthat supply information to clients when they request it. Each application must contain at least one HMI server. HMI servers store HMI project components (such as graphic displays), and serve these components to clients. Each HMI server also manages a database of HMI tags, and historical data management (logging).
- Areasthat let you organize a network distributed application and sub-divided it into logical or physical divisions. The use of areas is optional unless the application is to have more than one HMI server, in which case you must use areas because there can only be one HMI server per area.
- HMI project componentssuch as graphic displays that provide a view of the processes the application is monitoring, HMI tags that can retrieve and store data about the processes, and data log models that let you specify which data is to be displayed and where.
- used to set up runtime access to HMI project components such as graphic displays and tags.FactoryTalk Viewuser accounts and access codes (permissions)
- Data serversthat give clients access to information in programmable controllers, devices, and other data servers that comply with the OPC DA 2.05a, UA 1.02 or 1.03 specifications., without the use of HMI tags. You can also set up a redundant pair of host computers for the data servers in the application.Some OPC servers contain tag databases of their own, like the tag database in an HMI server, while others reference the tag databases that exist in the programmable controllers themselves. This is the case withFactoryTalk Linxand aStudio 5000processor.
- FactoryTalk Securitywhich is installed as part of the FactoryTalk Services Platform, and you can set up to authenticate user identities and authorize user requests to access resources managed by the FactoryTalk Directory. When you install theFactoryTalk View SEon a computer for the first time with the standard FactoryTalk Directory mode, in the FactoryTalk Directory Network, all users that are members of the Windows Administrator group on any local computer that is connected to the FactoryTalk Network Directory, will have full access to the directory and toFactoryTalk View.
A local station application consists of:
- FactoryTalk Directory, an HMI server, HMI project and HMI clientall located on the same computer. For a local station application, the HMI server and HMI project are created automatically when you create the application. The HMI project is given the same name as the HMI server.
- HMI project componentssuch as graphic displays that provide a view of the processes the application is monitoring, HMI tags that can retrieve and store data about the processes, and data log models that let you specify which data is to be displayed and where.
- used to set up runtime access to HMI project components such as graphic displays and tags.FactoryTalk Viewuser accounts and access codes (permissions)
- Data servers. You can add non-HMI data servers to a local station application. These do not have to be located on the same computer as the rest of the application's components.
- FactoryTalk Securitywhich is installed as part of the FactoryTalk Services Platform, and you can set up to authenticate user identities and authorize user requests to access resources managed by the FactoryTalk Directory. When you install theFactoryTalk View SEon a computer for the first time with the standard FactoryTalk Directory mode, in the FactoryTalk Local Directory all users have full access to the directory and toFactoryTalk View.
When using applications, note the following:
- All computers participating in a particular network distributed application share a common FactoryTalk Directory located on a network server.
- The name for any area, data server, or HMI server at a given level in the FactoryTalk Directory should be unique.
- Names for the followingFactoryTalk View Studiocomponents do not support extended ASCII characters or Unicode characters: applications, areas, HMI servers, data servers, HMI tags,FactoryTalk Linxshortcuts,FactoryTalk View Studioapplication files (. SED), and allFactoryTalk Viewapplication components, including graphic displays, parameter files, macro files, events files, derived tag files, and data log files.
- There can be more than one application on a network, but the HMI server can only participate in one application at a time.
- When adding a third-party OPC data server to a network distributed application, it is best to place the data server in its own area, separate from the area in which the HMI server resides. This avoids unnecessary OPC requests and reduces the overall number of OPC transactions between FactoryTalk Directory and the OPC data server.
- FactoryTalk Linxis optimized for use with all products in theStudio 5000controller family including ControlLogix, CompactLogix, FlexLogix, DriveLogix, SoftLogix, and GuardLogix controllers.
- For a more detailed discussion aboutFactoryTalk View SEapplications, see Chapters 6 and 7 in the.FactoryTalk ViewSite Edition User's Guide
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