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Scripting
Visual Basic for Applications (VBA)
For individual customizing and extensions to the configuration tool
we integrated VBA in the WinCC Graphics Designer -which is the user-friendly
standard environment for application-specific extensions.
This means that the Visual Basic knowledge that is available to many
engineers and users is transportable to WinCC. And apart from this,
standards for repeat engineering tasks save time and money! This means that
you can define any menu entries or fast configuration dialogs you like for
your own user-specific objects.
VBScript or ANSI-C
Normally pictures, logic operations and animation are configured via simple
dialogs. Scripts can also be programmed using VBScript or in ANSI-C when
necessary, for example to convert values, to initiate a report or to
generate operator messages.
VBScript has its own user-friendly editor with debugging support. The
scripts themselves have access to the properties and methods of all WinCC
graphics objects, to controls and to the object model of WinCC as well as
applications of other manufacturers.
Open programming interfaces - C-API
The WinCC function modules are open due to API interfaces that allow access
to the data and functions of the configuration and runtime system. This
means that you can use WinCC configuration and runtime functions in your
scripts or even develop standalone applications with direct access to WinCC. And using the
WinCC/Open Development Kit (ODK) accessing the programming interfaces is really easy.
further information about WinCC/ODK
Communication
OPC - OLE for Process Control
OPC is a uniform procedure that allows Windows applications to access
process data. This makes it easy to combine devices and applications
produced by other manufacturers.
As an OPC DA client, WinCC can log on locally
or across the network in the case of lower-level controllers for current
process data and has this data sent to it from the associated OPC DA server
on a cyclical basis. In the other direction, the WinCC OPC DA server can
make available current process data to other OPC compatible applications
like Microsoft Excel, for example, for further-processing.
With OPC XML DA, this is even possible across platforms for different
operating systems via the web between WinCC and office applications, ERP/PPS
systems (e.g. SAP/R3) or businessto- business portals.
You can implement access to WinCC archive data via OPC HDA (Historical Data Access) or by employing WinCC OLE DB-Provider
via Microsoft DTSX-Packages.
When using WinCC options Connectivity Pack and Connectivity Station
you can also access historical alarms via OPC A&E .
In OPC A&E the system displays
a WinCC message as an alarm and, together with all the ancillary process
values, passes it on to any subscribers on the production or company
management levels.
OPC A&E and OPC HDA are in the scope of delivery of the WinCC/Connectivity Pack option.
further information about
WinCC/Connectivity Pack
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Pre sales info