internet of things at work plug-and-play for industrial...

Internet of Things at Work Plug-and-play for industrial Automation

Forum Industrial IT – Tuesday, 09.04.2013

Henning Trsek

Institute Industrial IT (inIT) Hochschule Ostwestfalen-Lippe 32657 Lemgo [email protected]

mailto:[email protected]



2 | 10.04.2013 | M.Sc. Henning Trsek – Forum Industrial IT Internet of Things at Work Plug-and-play für die industrielle Automation

Agenda

1. Motivation and objectives

2. IoT@Work project and architecture

3. Plug-and-play approach

4. Results validation

5. Conclusion and outlook


Internet today: connecting computers

Smartphone or tablet devices serve as medium between us and the cyberspace

INTERNET


Internet tomorrow: connecting things

INTERNET


Things: PLCs, devices, smart factory, …

INTERNET


IoT@Work project

EU funded project • Duration: 3 years • Approx. 3.5 Mio € Funding

(Total Budget ~ 5.9 Mio € ) • Started in June 2010 • 6 Partners from Industry

and Research

Vision • IoT Enabling Agile

Manufacturing Systems

Project coordinator network & security

Software engineering & middleware aspects

Software engineering system modelling

Security Configuration Management

Automation & engineering

Scenarios & requirements pilot


IoT in automation

General Goals for Automation • Reduce engineering costs • Reduce maintenance costs and

system downtime • Increase flexibility and reduce

re-configuration costs • Reduce infrastructure costs

Requirements • Decoupling of applications and underlying infrastructure • Industrial performance & reliability • Scalable to thousands of devices • Dependable and predictable

IoT@Work = (Reliable communication) + (Secure Plug&Play) + (Web-technologies)


IoT@Work approach and architecture

Application services • Abstraction • Context • Composition • Application semantics Network services • Device semantics • Network management • Auto configuration

Decoupling application and network

Real-time Network

Statisches Mapping

Application level Middleware services

Middleware

Device and network embedded services

Application

Static coupling of application and network

Real-time Network

Static mapping

Application

Today

Tomorrow


1. Connectivity 2. Operating System

3. Application

Plug-and-play in office IT systems (e.g. USB)


How to achieve Plug-and-play (PnP)?

• Identification of required signals • Automatic variable assignment • Usage of semantics

• Detection of devices

• Adding or removing of devices • New devices must be configured

automatically.

• Autoconfiguration of RTE • Automatic RTE configuration when

devices are added or removed

Real-time Network


Middleware


Application


Approach

• Automatic Discovery & Configuration

• Discovery using DPWS • PnP-enabled generic RTE devices • RTE-specific methods for standard devices

• Discovery using OPC UA

• PnP-enabled generic RTE devices

• RTE specific configuration service


Autoconfiguration steps

DeviceIP allocation service

IO-Device connected

Requests IP-Address

Assigns IP-Address

Controller sets device parameters and configures RTE

Discovery

Controller parsesDevice Description File

Controller

Ad-hoc channel

OPC UA discovery

Configu-ration

DDF Server

Controller retrieves Device Description FileInforma-

tion exchange


Proof-of-concept: Profinet autoconfiguration

• Using an additional ad-hoc channel for configuration purposes

• Examples: Discovery, Management, Notification

• Our solution approach: Configuration service with OPC-UA

• Usage of GSD information


Video: PnP demonstration


World-wide smallest OPC-UA server

• OPC UA Services • Nano Embedded Device

Server Profile • Read, Browse

• OPC UA Information Model • Simple sensor data • Basic device information

• Footprint (15 kByte) • OPC UA Stack: 10

kByte • Micro TCP/IP stack: 5

kByte


OPC-UA at chip level enables Internet of Things

• One of the smallest OPC-UA server • Easy software integration for simple

devices • Internet of things enabled

• Very resource limited devices supported • Smart sensors with integrated

communication interface • Vertical integration

• Platform specification: • TPS-1 Chip, ARM9@100MHz • Available memory < 64 Kb • Operating system: EmbOS • Connectivity: Ethernet (two port switch

and non real-time TCP/IP channel parallel with a real-time channel)


How to achieve Plug-and-play (PnP)?

• Identification of required signals • Automatic variable assignment • Usage of semantics

• Detection of devices

• Adding or removing of devices • New devices must be configured

automatically.

• Autoconfiguration of RTE • Automatic RTE configuration when

devices are added or removed

Real-time Network


Middleware


Application


Funktion Attribut

Signal Sensor, Actuator, N/A

Measure-ment

Position, Temperature, Voltage, etc.

Control Motor, Valve, Linear Axis, etc.

Neighbor-hood

Previous system, next system

… …

Connectivity

Application services (related research)

Concept of a semantic language • Formal

description language for modules and devices

• Information- model

• Mapping (log./phy.)


• Adaptability / Flexibility Concepts • Energy efficiency • Model based diagnosis • Teleoperation (M2M-Integration)

Control and field level

SCADA System Control Room

LMF as validation platform


Conclusion and outlook

Conclusion • Plug-and-play at different levels

• Application, Middleware, Network • Autoconfiguration of RTE

• Proof-of-concept for Profinet IO as RTE • Application level

• Semantics • Devices and modules

• Information and functionalities as services Outlook • Further investigations at the application level • Platform independent standard needed


Contact Henning Trsek

inIT - Institut Industrial IT [email protected]

www.iot-at-work.eu

This research was partially funded by the EU Project IoT@Work under grand number ICT-257367 and by the German Federal Ministry of Education and Research (BMBF) within the

Leading-Edge Cluster “Intelligent Technical Systems OstWestfalenLippe” (it's OWL)

Thank you

http://www.iot-at-work.eu/





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