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Siemens Industry Online Support
Siemens AG
Entry type: FAQ Entry ID: 109755858, Entry date: 02/22/2018
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Which restrictions you have to consider by the OPC UA server of S7-1500 CPU with the firmware V2.0.x or V2.1.x in compatibility mode of firmware V2.5?

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Consider the subsequent restrictions in the S7-1500 CPU with firmware V2.5, if the CPU configured in one of a early version (< V15) in the firmware V2.0.x oder V2.1.x.

Description
The sampling interval of 50ms is currently not usable when operating a CPU configuration with firmware V2.0.x or V 2.1.x in compatibility mode of firmware V2.5. The smallest possible sampling interval in this case is 100ms.

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In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
http://www.siemens.com/industrialsecurity.
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