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Test of 3rd Party Software at Grundfos

Test of 3rd Party Software at Grundfos. Jens Lyngsoe Software Developer jlyngsoe@grundfos.com. Agenda. Introduction Test of 3rd party software (4 examples of what we have been doing) MODBUS protocol stack Premptive OS – Segger EMBOS PLC with development environment

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Test of 3rd Party Software at Grundfos

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  1. Test of 3rd Party Software at Grundfos Jens Lyngsoe Software Developer jlyngsoe@grundfos.com

  2. Agenda Introduction Test of 3rd party software (4 examples of what we have been doing) MODBUS protocol stack Premptive OS – Segger EMBOS PLC with development environment Integrated operating system and development environment

  3. Introduction to Grundfos Pumps and pump systems 16k employes world wide 5k5 employes in DK 600 in R&D in DK Company vision: 75k people in 2025

  4. Grundfos Products All market segments: HVAC, Water Supply, Waste Water, Industry, Dosing

  5. Global R&D Electronic developers world wide

  6. Software Development Overview Distribution of people in sw projects:

  7. Key Objectives of Grundfos Software Development • Small projects (1-7 persons) • Focus on quality rather than time • No dedicated testers • Software testing is integrated in the software development proces • Embedded software • Homegrown OS (scheduler) • Homegrown datacommunication protocol

  8. Test of 3rd party software(4 examples of what we have been doing) • Premptive OS – Segger EMBOS • PLC with development environment • Integrated operating system and development environment • MODBUS protocol stack

  9. Premptive OS – Segger EMBOS What we wanted: • Graphics library • Preemptive multitasking • TCP/IP stack

  10. Premptive OS – Segger EMBOS What happened: • Supplier qualification • New MCU platform – 2 bugs found • Qualification test – listbox • Pc platform • Support • TCP/IP stack

  11. PLC with development environment What we wanted: • Platform for pump controllers • Flexible and scalable system What happened: • Major partner – full confidence • Extensive changes to software • Testing: Review of spec.’s, test spec.’s

  12. Integrated operating system and development environment • For LONworks • Echelon operating system • Fast time to market for user application • Hardware integration • Development environment integration What happened: • No faults found • Smooth integration creates confidence • Test: None specific to OS

  13. MODBUS protocol stack Background: • Addition to proprietary protocol stack • Homegrown version • Payd for version What happened: • Test: protocol end-to-end as part of acceptance testing • No bugs found

  14. Conclusion • Confidence in supplier is the basis • We don’t want extra work – that’s a major reason for choosing 3rd party suppliers in the first place • Review / overview of documentation • Small and fast initial test • Problems fastly creates a sense, that everything needs to be tested

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