Siemens | Simatic S5 6ES5521-8MA11

Product Details

• Part Number 1 6ES5521-8MA11

Product Description

Siemens 6ES5521-8MA11 is a Communications Module for the Simatic S5 product family.

From a maintenance perspective, communication modules move control and status information between system elements, helping controllers, networks, operator resources, or external computers exchange data through the architecture named in the product description. The plant's maintenance records should support final product selection.

In a SIMATIC S5 system, module selection is governed by the controller family, rack arrangement, electrical interface, and configured program. The exact article number should be matched before installation. The assigned system function should be preserved through installation and service.

In the signal path, this approach helps preserve the intended system function while keeping selection aligned with the documented ratings, capacity, and compatibility requirements. Final selection should be based on the plant's controlled-equipment records.

Product Documentation

• Common Part Typos 6ES5521-8MA1I, 6ES5521-8MA1l, 6ES5521-8MAI1, 6ES5521-8MAl1, 6ES55218MA11, 6ES55218MA1I, 6ES55218MA1l, 6ES55218MAI1, 6ES55218MAl1, 6ES552I-8MA11, 6ES552I8MA11, 6ES552l-8MA11, 6ES552l8MA11

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