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I/O Profile
The Sercos I/O profile is a powerful device profile for decentralized I/O modules, which can be used for block and modular I/Os. It also supports hybrid devices that combine several functionalities in one single device, e.g., two-axis controller with I/O and master functionality.
An XML-based device and profile description language is specified for I/O device configuration. SDDML (Sercos Device Description Markup Language) describes which profiles are supported by a certain device. SPDML (Sercos Profile Description Markup Language) is used to specify the different profiles on the basis of the Sercos parameter model. Existing standard parameters can be used and manufacturer-specific parameters can also be defined.
Sercos III has an I/O profile and a safety protocol, available without any restrictions on the real-time behavior of drive functions. Therefore, a single Sercos fieldbus is sufficient to implement challenging motion control applications.
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