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Several programmers can work on the same PLC project simultaneously. In larger installations with multiple controllers, certain data must often be stored on a central server so that the aggregated data can be subsequently analyzed. Unfortunately, the timestamps on the different devices cannot be generated uniformly.

If such data is then aggregated for a centralized application like TwinCAT Scope, the central system has no accurate time reference. Unfortunately, the system clocks on the individual controllers cannot be simply adjusted to synchronize them, because this would impair the entire application. But which reference clock should you use? In order to achieve medium accuracy very simply, you can use the S NTP service, which is free and installed on all Beckhoff devices.

In distributed installations, this method is sufficient when all you want to do is compare data. For more accuracy, a process based on IEEE can be used. The only way to achieve even more clock precision would be with special cabling, i. The interface introduced in the new TwinCAT build for one of these methods allows you to use corrected timestamps for different data and thus achieve comparable timestamps in aggregated databases.

At the same time, the possibility to jump from the process image to the corresponding place in the code was added. To develop and test PLC code faster and more effectively, many improvements have also been incorporated in the PLC area.

Especially in object-oriented programming, simplifying code maintenance and reusability is a major objective. The use of interfaces is essential in this context. In the past, interface pointers were able to indicate the address, but no pointer de-referencing was executed. With Build , this is now possible and further improves the engineering capabilities. This option is now also available to the PLC programmer, because abstract classes make it easy to generate sample function blocks or classes, which can then be filled with code.

The same applies to exception handling. If there is an exception, the PLC programmer wants to respond to it. In case of a division by zero, it may be useful to execute a specific routine to bring the machine into a safe state and prevent any damage to it.

The mapping dialog has been improved in such a way that not all node levels are open. An option allows you to switch between the old, the new, and an automatically adjusted view. It also improves program clarity, because with this functionality the still frequently used lists of global variables can be dispensed with. Another advantage is that the program code of function blocks in graphical languages can now be saved in the binary Base65 format as well, which speeds up the loading and saving of programs with a large proportion of graphical languages.

These range from the automatic start of the PLC-HMI client on the runtimes and the dynamic scaling of operating elements in the measuring devices category to performance improvements when opening dialogs.

Until now, only the PLC programmer was able to change the control code with the machine running. This is an absolutely necessary feature, because in practical use, many machine or plants can rarely be stopped if at all.

However, this is not permissible in many applications. In particular in the case of test machines, processes may not be interrupted as a rule. Despite that, program changes are frequently necessary. To this end, the corresponding code is specially versioned and the existing version is replaced by a newer one while retaining the data. User-defined function blocks can be created and instantiated as often as required including GoToDefinition, Online View, nesting up to 2 levels. In addition to security, safety plays an important role in the TwinCAT system as well.

For this reason, numerous features have been added that make safety-related operations easier. One of the most important of these is the multiple use of variables. Variables therefore no longer need to be unique but can be declared and used locally as well as globally across an entire safety project. This makes safety-related projects much easier and more effective.

In addition, special function blocks that are based on existing and certified function blocks can be defined and instantiated multiple times. This means that a functionality for a safety door e. The Beckhoff ADS protocol was already introduced with the first version of TwinCAT and has been essentially unchanged ever since, but frequently enhanced by new features all the same. When a new connection is created between two ADS devices, their authentication can be ensured via certificates.

All telegrams are automatically encrypted. Beckhoff has decided to use TLS, the best-known process for authentication and encryption, for this purpose. The programmer does not need to worry about the certificates and their management, because TwinCAT handles this automatically in the background. The integration into the central communication component, TwinCAT Router, also enables legacy applications using ADS to use encrypted connections by reconfiguring them without having to recompile or even rewrite the application.

Not only the previous YT, XY and Array bar charts, but also the new single bar and digital charts can be configured. Furthermore, it is now possible to change the appearance of the graphs at runtime with the Dynamic Style function. The color of a channel, for example, can be changed if threshold values are reached.

Geometric figures can now also be installed in the XY chart. The vision triggers form a completely new function group: They enable camera images that are provided with a timestamp to be displayed directly in the chart. Company Products Industries Support myBeckhoff.

Contact information. Submit Quit. The variant management capability of TwinCAT simplifies the versioning and maintenance of control software significantly. The multi-user functionality of TwinCAT simplifies the commissioning of even complex machines significantly. Further new functions of TwinCAT 3. PLC properties. AML data exchange. Safety-related properties. ADS properties. Scope properties. Please choose your region and language. The link was copied to the clipboard.

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