Réf. : ARI_1100

Workshop on Ethernet as a fieldbusWorkshop on Ethernet as a fieldbus

Presentation of Spie Presentation of Spie TrindelTrindel

A decentralised organisation

To serve local markets

5 Federations

18 Regional offices

200 local offices

In France

In Europe

European European organisationorganisation

11 000 people

Belgium (Abay TS, Air et Chaleur)

Netherlands (Melotte BV, Elektron)

Portugal (Evale, Oele)

Germany (EDS)

SPIE TRINDELSPIE TRINDEL

Lyon Saint Exupéry AirportLyon Saint Exupéry Airport

Centralized Technical Management, Centralized Technical Management, maintenance, ATM networkmaintenance, ATM network

CORALY CORALY Project : application Project : application of trafic handling around Lyonof trafic handling around Lyon

Vetrotex Mexico Vetrotex Mexico : management of : management of forming, winding and products quality, forming, winding and products quality,

products trackingproducts tracking

Trafic handling of E40-E25 ring and Trafic handling of E40-E25 ring and surrounding at surrounding at LIEGELIEGE

A.R.I. specialised department of Spie TrindelA.R.I. specialised department of Spie Trindel

(Part of references)(Part of references)

Purpose of AutomatisationPurpose of Automatisation

• Facilitate the manufacturing changes on the production lines

• Decrease the stop time and having diagnostic information (production efficiency)• Integrate the different products (hardware and software) from different suppliers• Merge in a transparent way in the “Supply Chain”

The communication networks represent an essential component of the factory

Suppliers ClientsManufacturing

Ethernet as a standardEthernet as a standard

Today, Ethernet is an asset because :Today, Ethernet is an asset because :

• Internet Protocol

• Evolution to Ethernet safe

• Reuse the existing network infrastructure

• Less different network on a site

• Knowledges already existing on the site

• Advantage a better integration between automation (PLC) and computers

• Non proprietary technology

• Nearly available from each industrial equipment suppliers (PLC, HMI, etc …)

• Evolution to 100 Mb and 1 Gb

• Multi platform : Windows, Unix, Linux

But :But :

• Non determinisit network• The use of “switch” can create weak points and increase the global cost• No power supply for field equipment (sensor) via the cable

Factory network

Workshop network

Field network

Classical ArchitectureClassical Architecture

• Transfer data files• A lot of data• Time : >100 ms

Sensors and actuatorsSensors and actuators

Control (PLC)Control (PLC)

MonitoringMonitoring

ReportingReporting

• Comm HMI / PLC• Data Volume : medium• Time : 10-100 ms

• Field equipment's• Data Volume : small• Time : <10 ms

Selection of a bus (1/2)Selection of a bus (1/2)

To choose a bus, To choose a bus, it’s necessary to take in account the following it’s necessary to take in account the following aspectsaspects : :• Simple : what does the installation have to do (monitoring, control loop, etc ...)

• Strategic : the existing and the future• Is there an existing network on site ?• If yes, Is it still available and for how long ?• Is it the right network for our application ?

• Monitoring, remote I/O modules :• volume of data can be important, cycle time is not critical

• Control loop, fast process (mechanical) :• few data, cycle time critical

• Financial :• Purchase cost of the equipment• Installation cost of the different solutions• Needs in terms of interface• Training investment for exploitation and maintenance

Selection of a bus (2/2)Selection of a bus (2/2)

• Technical aspect : what’s existing by the suppliers

• Installation and maintenance : maintainability of the solutions

• Complexity to install the network (distance, special cable, etc ..)

• Have we competence to acquire

• Is the maintenance easy to achieve (e.g. shut down for repair or replace)

• Life span of the components

• Ethernet safe (availability of the data)

• Industrial Hub, Switch, Bridge

• Optical ring with redundancy functions (availability of the networks)

• Web server embedded inside PLC (remote maintenance)

• Ethernet radio (e.g. with barcode reader)

• Evolution to 100 Mb and Gb

Selection criteriaSelection criteria

The questions to ask are :

• What are the environmental conditions (distance, temperature, EMC)

• How many network level• All equipment on one network or one level by functionality

• Is it desirable to reuse an existing Ethernet network• extension of an office network (to have a link)

• What are the performances desired• exchange data files, acquisition of remote I/O, monitoring, etc ...

• What kind of field equipment we have to connect (PLC, robots, valves) and what are the connection capabilities of these items

• Have we needs on network availability (optical ring, redundant network)

• What is the required level for maintenance team

ConclusionsConclusions

There is not an “universal” solution, but Ethernet can provide solutions :

• Suppliers provide new products and technical solutions

• MES and ERP architecture become “standard” : reliability and flow of data increase

• The Internet aspects offer new possibilities (remote access with IE or Netscape)

Thank you for your Thank you for your attentionattention