TwinCAT ADS
TwinCAT ADS organises the data exchange
TwinCAT ADS organises the exchange of data between TwinCAT and Windows programs and includes:
- searching for variables
- access by variable name
- synchronisation of timing with the operating system
- adaptation of the differing data types
- creation of data blocks and list generation to improve system effectiveness
- ensuring that accessed data is consistent
Access methods
- synchronous/asynchronous
- cyclical/notify on change
Interface for program applications
The TwinCAT interface for programming languages (Visual Basic, Visual C, Delphi, Java, …) does not just offer links to I/O data, but also full access to the methods of the PLC/NC run-time server (start, stop, etc.).
TwinCAT ADS operates through the message router
The data link to TwinCAT servers always takes place via the message system. In this way it is possible for the Windows programs not only to work with the local server but also to exchange data with all registered TwinCAT servers worldwide. The message router also ensures that the data exchange to remote servers on other PCs or field equipment can occur.
ADS components are available for the following applications: DLL, OCX, VB Script, J Script, .NET assembly, Java, web service.
ADS data exchange can be managed transparently via different physical transport routes: TCP, UDP, fieldbus, EtherCAT, serial, SOAP.
TwinCAT ADS monitor
The TwinCAT ADS monitor is an important debugging and diagnostics tool for the development of ADS-based communication and is split into two applications, i.e. the logger for recording the telegrams and the viewer for displaying the telegrams offline. The telegrams can be conveniently filtered in the viewer.
All ADS components are available free of charge as “TwinCAT ADS Communication Library”. Detailed descriptions and examples can be found in the Information System.
| Ordering information | |
|---|---|
| TwinCAT ADS Communication Library | free licence for using the ADS communication components |