IWS_Training_Guide_v.. - FF-Automation

IWS Development EnvironmentIWS Training GuideWorkspaceThe Workspace is a user-friendly interface that enables you to quickly find any application component (e.g. tags,screens, worksheets, and communication functions). The application components are organized in a tree-view mannerwith each application component having its own icon and customized description. You can move, resize or hide theWorkspace window.The Workspace window is divided into four tabs:• The Database tab enables you to access any available tags from theapplication, IWS Security System components, and VBScript GlobalProcedures. This tab includes the following folders:Application Tags Contains a spreadsheet-like list of the tagsthat are defined by the developer for theapplication.ClassesShared DatabaseInternal TagsContains Class definitions. These are nottags, but instead are definitions that are usedwhen declaring Class Tags in the ApplicationTags folder.Declares (to IWS) tags that are generated bya PC-based control program.Internal Tags are tags defined by IWS such asTime, Day, UserName, and other tags used bya typical application. These tags do not countagainst the IWS license tag limit.Database WorkspaceSecurityEvent SettingsGlobal ProceduresThis folder provides access to the IWS Security System. Security Groups andindividual Users can be defined, along with Passwords, and Password controlfeatures (e.g. password aging, auto-logoff, lockup on multiple invalid attempts, etc.)Allows the developer to define the Events that can be logged to an Event Database.Events can include Security System events (e.g. Log On & Log Off), activating aReport or Recipe, opening or closing Screens, Tag Value changes (includes anoptional dead band setting), System Warnings, and Custom Messages (from theApplication)Allows the developer to define VBScript procedures (Functions and Subroutines) thatcan be used by any VBScript code segment within the IWS application. GlobalProcedures can define variables to be used by a procedure, but these variables arenot directly accessible outside of the Global Procedures section.Note:• The Shared Database is only one way to access Tags from a PC-based Control program. The morecommon way is through OPC. The PC-based Control program vendor typically provides an OPC Server.IWS is the OPC Client that can browse and use these Tags.InduSoft Web Studio 5–5