3 Options SIMATIC WinCC
3.2 Increased availability
3.3.1 WinCC/DataMonitor Definition
With the WinCC/DataMonitor option, you can monitor, ana- lyze, and distribute current process states and historical data via an intranet or the Internet. WinCC/DataMonitor provides several tools for displaying and analyzing data. Licensing
A central license is required on the WinCC/DataMonitor server according to the maximum number of machines with simultaneous access, for example, 1, 3, 10, 25, or 50 Web clients. No license is necessary on the WinCC/DataMonitor clients.
Application
The display and evaluation of current process states and archived data allows you to efficiently monitor and analyze the production line as well as to create reports and send them to the relevant individuals. WinCC/DataMonitor pro- vides easy access to production data via an intranet or the Internet, thus enabling you to quickly ascertain the produc- tion situation.
The DataMonitor client, a normal office PC with Internet access, uses standard tools such as Microsoft Internet Ex- plorer and Excel to display data. The data provider, a WinCC/WebNavigator server or a WinCC/DataMonitor server, can be installed on any WinCC single-user system, WinCC server, or WinCC client with a project. This makes it possible to access process states, diagnostic information, and analyses for different corporate levels from anywhere on earth.
The WinCC/DataMonitor server can also be installed on a file server. This makes it possible to access and existing plant (Webcenter and Trends & Alarms only).
WinCC/DataMonitor offers the following advantages: ● View production status and process/plant operation
anywhere and anytime
● Make production situations transparent in individual views
● Corroborate decisions with reports ● Automated report creation
● No training required for standard products ● Easy exchange of configuration data Tools
The Trend & Alarms, Published Reports, and Webcenter tools access WinCC data via a WinCC database: ● WinCC runtime database
● WinCC/CAS database, WinCC/Central Archive Server option
● Database of a swapped archive such as the long-term archive server
You can connect and disconnect swapped archive data- bases online.
ProcessScreens, Excel Workbooks, and the Excel Work- book Wizard use the WebNavigator internally to access WinCC data.
For visualization and evaluation, WinCC/DataMonitor provides a range of Internet-capable tools, which support all common security mechanisms such as login/password, firewalls, encryption, etc.:
1. Process Screens are simply used for monitoring and navigating using WinCC process pictures with Microsoft Internet Explorer as a "view only client". WinCC/DataMonitor uses the same mechanisms as WinCC/WebNavigator, for example, for communication, user administration, and proc- ess picture display. "View Only" is indicated to the operator by a special configurable cursor symbol.
2. Trend & Alarms are used to display and analyze archived process values and messages in trends and tables and for evaluation with statistics functions.
Figure 86 WinCC/DataMonitor statistics
In the tables, the operator simply compiles the specific archive data (process values and messages) online in runtime, on-the-fly using point-and-click functionality. Multiple configuration of x and y axes is possible, as well as configuration of relative or absolute time ranges. Data selected online can be exported to a file in .csv format. 3. Excel Workbooks are used to present current and archived process values and messages in an Excel work- sheet for evaluation purposes, for display over an intranet or the Internet, or as a print template for reports. The data can then be manipulated graphically in Excel, for example, in a pie chart, and evaluated with complex statistical functions. With the Excel Workbook Wizard, you transfer process data to an Excel worksheet (requires no knowledge of WinCC), for example, "<Speed_Motor1> + 10", from the WinCC pro- ject of the DataMonitor server, one of its lower-level WinCC servers, or from an XML file previously generated with the "Export Configuration Data" function. In this way, (print tem- plates for) reports can also be created offline, loaded to the DataMonitor server at a later point, and then distributed for user-specific evaluation. Offline editing offers the following options:
● An external engineering office compiles the reports. ● Management, which has no direct access to the plant,
compiles the reports.
● Reports are evaluated by skilled personnel, thus increas- ing plant efficiency.
3.3 Plant Intelligence Options SIMATIC WinCC
Figure 87 WinCC/DataMonitor Excel Workbooks 4. Published Reports are used to create reports in .pdf or .xls format from WinCC print jobs or published Excel work- sheets; this is only possible in DataMonitor. These reports are initiated by the DataMonitor server manually (for exam- ple, by a plant operator), event-driven (process tag), or time- driven (for example, at the end of a shift) and stored in directories or distributed via e-mail if a mail server is avail- able (problem analysis, improvement measures). Each of these directories can only be accessed with the appropriate authorization; this includes access over an intranet or the Internet.
5. The WebCenter is the central information portal for access to WinCC data via an intranet or the Internet. Here, users with corresponding access rights can compile Web objects with WinCC process data or messages for any number of screen views for various groups of persons.
Figure 88 WinCC/DataMonitor WebCenter
Figure 89 WinCC/DataMonitor Published Reports
Figure 90 WinCC/DataMonitor Web objects
Up to 15 of the following Web objects can be combined into one screen view:
● WinCC process picture view: WinCC pictures are integrated into the WebCenter with no installation download. A JPG screenshot of the process picture is created on the WinCC/DataMonitor server at regular in- tervals.
● Process values in a trend or table (timestep): Several process values are displayed over a given period of time (compressed using specified functions) graphically or in table format.
● Process values in a bar chart or pie chart ● Statistics view
● Trend (timestep) provides a clear representation of pre- compressed values with the aggregate functions: o initial value
o minimum/maximum over time o sum/average/number over time o variance
o one/two/three standard deviation(s). ● Message view
● Alarm hit list
● Links (Favorites) to internal WebCenter pages and external Internet pages, such as stock market news ● Graphics in JPG format: This can be any type of infor-
mation, such as a product logo, trade name, etc. ● Messages that are displayed at specific times.
● History of the most recently compiled reports with direct selection.
Options SIMATIC WinCC 3.3 Plant Intelligence Special features
Figure 91 WinCC/DataMonitor user administration ● For Process Screens and Excel Workbooks, a user is
required in the WinCC project with the system authoriza- tion "Web access - view only". For Trends & Alarms, Published Reports, and the WebCenter, a user is required in the Microsoft Windows operating system with access rights to directories.
● A logged on user must be a member of a user group (assigned to the directory), for example, "Operations manager" or "Shift supervisor", in order to have read- or write-access to the Web pages and reports stored in the directory. Exception: All users have read- and write- access to their own "Private" directories at all times. In addition, all employees have access to the "Public" directory. In this directory, users can place information that is of interest to everyone.
● In the user administration for the WebCenter, you assign read and write permissions to the user groups in the Windows user administration system.
● The WinCC/DataMonitor clients connect to different Web servers and switch from view to view. This is facilitated in Internet Explorer with tabbed browsing, which allows multiple tabs to be opened in the browser, each display- ing a different window.
● Web pages and reports are stored in directories that are arranged clearly on different tabs. There are also "Pub- lic" and "Private" directories.
● On the Web client, you only need to install WinCC/ DataMonitor for the Excel Workbook Wizard on the client side and for the ActiveX controls of Process Screens. All other functions of the WinCC/DataMonitor are used in Internet Explorer with no additional installation required.