Fieldbus

Verifying Interoperability and Industrial Performance

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Ensuring reliable and compliant industrial networking

To avoid any kind of problems and incompatibilities during commissioning and continuous operation in automation systems, customers require a very high functional quality standard from IO devices as well as compliance with the relevant standard.

For this reason, PROFIBUS & PROFINET International (PI) has developed an IO device test that may only be carried out by authorized PI test laboratories. Testlab, with its long-standing experience in testing Interbus modules, is one of these laboratories. All required tests are performed professionally by highly trained engineers. The IO device test can also be carried out in parallel with the development process.

In addition, Testlab offers testing services in the areas of EMC, environmental simulation (e.g. vibration and temperature), radio, and electrical safety, as well as international approval management.

Why Fieldbus Testing Matters

Industrial communication components must:​

  • Ensure interoperability
    Devices from different manufacturers operate reliably together.

  • Guarantee stable communication
    Reliable data transmission even under industrial interference conditions.

  • Comply with standards and regulations
    Verification of conformity with international fieldbus and PROFINET standards.

  • Detect errors at an early stage
    Protocol and implementation errors are identified before commissioning.

  • Reduce risks and costs
    Fewer integration issues, failures, and rework in the field.

  • High system availability
    Tested communication increases operational reliability.

Why Fieldbus Testing Matters

Test scope

The complete PROFINET IO test is divided into five mandatory sections and one optional service. Only if the IO device successfully passes all tests is the customer eligible to apply for certification with PI.

Statemachine Test

All state machines are tested using an automated controller simulation software that is continuously being further developed. This ensures a reproducible test execution with an expandable number of test cases.

Hardware Test

The Ethernet interface of the IO device must comply with the requirements of the applicable standards with regard to transmission rate, polarity, and wire crossover.

Interoperability Test

Interoperability between IO devices and IO controllers from different manufacturers is a core requirement for end users, ensuring seamless operation within an automation system. Testlab provides a wide range of PROFINET IO devices and controllers to verify interoperability. The test setup is continuously expanded to increase device diversity.

GSDML-File Test

The device description file, as the central functional description of the IO device, must comply with the requirements of the applicable GSDML specification. An official PI test tool is used to automatically verify all aspects of this file.

Profile Tests

Following successful testing of the PROFINET base technology, additional PROFINET profiles can be tested. Where these profiles fall within Testlab’s scope, testing is carried out in-house. All other profiles are handled via subcontracting. As a customer, you benefit from having a single point of contact for the complete conformity assessment process.

Optional: Certificate Service

For PROFINET products, certification is mandatory. Upon request, we can also handle the entire certification application process on your behalf.

The five IO mandatory sections mentioned are the test cases specified and required by PI for a complete PROFINET conformity assessment.

In combination with such testing, customized and attractive individual test packages can be offered. Further information on PROFINET can be found on the website of the PROFIBUS User Organization.

Registration for a PROFINET Conformance Test

The prerequisites, required documents, and important information regarding a PROFINET conformance test are outlined in the non-binding registration form.

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Ivan Demcenko

Ivan Demcenko

Sales

Jens Knaup

Jens Knaup

Graduated Test Engineer Profinet

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