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TCI - Tool Calling Interface



For Integration of PROFIBUS DP Devices and PROFINET IO Devices in an engineering system, GSD files are used which must be provided by the device manufacturer. Syntax and semantics of these files are standardized so that the devices can be integrated independently of the manufacturer.

Besides this method, it is required for some equipment to provide a separate tool for parameter setting and diagnostics if the requirements for data input or visualization go beyond the scope of GSD means.


Before TCI was introduced, between these two methods no correlation existed so that the user of the Engineering System was faced with the following topics:

· The user had to have knowledge which tool is required for a particular device

· The user had to enter the communication parameter of the device both in the engineering system and in the device specific tool and make sure to keep the parameter consistent.

· The user had taken care that both, engineering system and device specific tool, uses the same location for data storage because otherwise it would be difficult to archive the project data.


From the device manufacturer point of view, the following topic had to be solved:

· The communication functionality for each supported field bus system had to be implemented.


To solve these topics, a relation between the GSD based engineering system and the device specific tool is needed. This relation should cause only minimal dependencies between the involved tools – an easy version handling is required to ensure the interaction between different versions of the interface.


This interface is defined as “TCI- Tool Calling Interface” in this document which covers PROFINET IO, and PROFIBUS DP. The fieldbus specific parts are described in separate documents. See corresponding annex.


Version: 1.1
Order No.: 2.602 / 2.612 / 2.622 / 7.602
Language: English


Draft for review:

Version: 1.1MU1
Order No.: 2.602 / 2.612 / 2.622 / 7.602
Language: English

This draft is published for testing and review only. It must not be used for development purposes.

Comments to be submitted to  until September 10, 2024.


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# Date Filename Type Size
26/04/2009 zip 2 MB
10/06/2024 zip 3 MB

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