Test of 3rd party software at grundfos
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Test of 3rd Party Software at Grundfos. Jens Lyngsoe Software Developer [email protected] 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

Jens Lyngsoe

Software Developer

[email protected]


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


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


Grundfos Products

All market segments: HVAC, Water Supply, Waste Water, Industry, Dosing


Global R&D

Electronic developers world wide


Software Development Overview

Distribution of people in sw projects:


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


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


Premptive OS – Segger EMBOS

What we wanted:

  • Graphics library

  • Preemptive multitasking

  • TCP/IP stack


Premptive OS – Segger EMBOS

What happened:

  • Supplier qualification

  • New MCU platform – 2 bugs found

  • Qualification test – listbox

  • Pc platform

  • Support

  • TCP/IP stack


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


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


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


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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