Optical communications technology for tunnel-boring machines

Belden's Profibus OZD Profi 12M fibre interfaces facilitate secure underground data communication

Belden Inc. has supplied optical communications technology from its Hirschmann brand for Herrenknecht tunnel-boring machines (TBMs) used to construct the Katzenberg rail tunnel in southern Germany. This tunnel, which is scheduled to go into operation by the end of 2012, will form part of the new high-speed link between Karlsruhe and Basel in Switzerland.

Two identical TBMs were used to cut twin 9385m holes through solid rock. Each of these machines is 230m long and weighs 2500 tons. Because the machines have special data communication requirements, an optical Profibus network incorporating Hirschmann OZD Profi 12M fibre interfaces were installed.

Wayss & Freytag Ingenieurbau was responsible for planning and implementing this network. Project Manager Roberto Piacentini explains: "The physical properties of optical cables mean that there is no electromagnetic interference, which is extremely important in view of the long transmission paths along the power cables of the tunnel boring machines."

Initially 2km long, the fibre optic cables were gradually extended to a length of 10km in order to keep up with the progress of the TBMs. Both ends of the cable were equipped with fibre interfaces to transmit the Profibus signals. On the two TBMs and in the control room at the mouth of the tunnel, the same interfaces act as a link to the local PLCs.

Piacentini says: "These fibre interfaces, which constantly monitor the signal quality, are characterised by a robust hardware design, so they always permit secure data communication despite strong vibrations, impacts and high temperatures."

Redundant, fail-safe networks can also be implemented using the fibre interfaces. However, for the Katzenberg tunnel this was deliberately avoided. Alfred Huber, project manager at Belden, explains: "Because the TBMs can operate self-sufficiently for a time using the information stored in the local control computers, a brief interruption of data connectivity to the tunnel mouth could be tolerated. This greatly simplified the cabling and made it much easier to handle."

Data protocols

The approach adopted by Wayss & Freytag Ingenieurbau for secure Profibus data transfer via fibre optic cables has proven itself in the construction of the Katzenberg tunnel in the same way as have Belden's active components. Nevertheless, there are already signs of other data protocols being used.

Product Manager Rolf-Dieter Sommer, who is responsible for Hirschmann fibre interfaces at Belden, explains: "Telephone connections between the TBMs and the control centre at the tunnel mouth are already implemented using Voice over IP. We are currently working on simultaneously and reliably transferring control signals over an Ethernet cable."

Hirschmann, a Belden Brand, manufactures Ethernet switches, wireless access points, firewall/VPN routers and network management software for harsh industrial environments. The Hirschmann brand stands for experience and expertise in the automation, power transmission and distribution, transportation and energy industries, having pioneered the development of Ethernet as a common standard for industrial control systems. Hirschmann products ensure hassle-free and secure data communication under the harshest conditions due to their ruggedised design and construction.

For more information about Hirschmann optical communications technology, please visit www.hirschmann.com or email inet-sales@belden.com for product inquiries.

Belden

Edisonstraat 9
Postus 9
5928 PG Venlo
5900 AA
NETHERLANDS

+31 77 387 8555

venlo.salesinfo@belden.com

www.belden.com

More from Belden

Alliance to secure industrial automation and control networks

Posted 2 years ago

Belden publishes "˜Time-sensitive Networking for Dummies'

Posted 3 years ago

Belden releases Industrial Cyber Security for Dummies

Posted 4 years ago

Multiprotocol I/O modules simplify machines for global markets

Posted 4 years ago

Belden demonstrate "TSN Ready" switches at Hannover Messe

Posted 4 years ago

TSN software update for Hirschmann switches RSPE35 and RSPE37

Posted 4 years ago

Belden's BAT867-R Wireless Access Point is compact and rugged

Posted 4 years ago

Belden's MSP40 switch offers flexible port options

Posted 4 years ago

Reduce risk and maximise uptime with Industrial HiVision 7.0

Posted 4 years ago

Belden launches OWL LTE M12 cellular router

Posted 4 years ago

The changing face of future automation networks

Posted 4 years ago

Belden launches additions to Lumberg LioN-Power System

Posted 4 years ago

Time-sensitive networking: a key automation network technology

Posted 4 years ago

Belden's connectivity technology meets future PROFINET Standard

Posted 4 years ago

Belden joins industry effort for time-sensitive networking

Posted 4 years ago

Belden to highlight tomorrow's technologies at SPS/IPC/Drives

Posted 4 years ago

New space-saving Hirschmann OCTOPUS switch from Belden

Posted 5 years ago

Belden offers secure remote access for industrial networks

Posted 5 years ago

Belden delivers complete industrial LAN for Saudi pharma plant

Posted 5 years ago

Two new lines of switches for cost-effective data transfer

Posted 5 years ago

Mid-range Gigabit speed switch for industrial networks

Posted 5 years ago

Hirschmann OCTOPUS Gigabit Switch offers Power over Ethernet

Posted 5 years ago

TRUMPF customers enjoy guaranteed communication availability

Posted 5 years ago

Belden enhances security OS to better secure industrial networks

Posted 5 years ago

Hirschmann and Secomea sign Partnership Agreement

Posted 5 years ago

Cordsets deliver reliability in confined automation settings

Posted 5 years ago

Multiprotocol I/O modules boost flexibility and convenience

Posted 5 years ago

Belden unmanaged switch: send data over long distances

Posted 5 years ago

ICS Security Guide to Hirschmann Switches

Posted 5 years ago

Belden to highlight innovations at SPS/IPC/Drives 2015

Posted 5 years ago

Belden contributes to standards for time-sensitive networks

Posted 6 years ago

Industrial HiVision software now offers comprehensive security

Posted 6 years ago

Belden is a Development Partner for Connected Industry Platform

Posted 6 years ago

Belden and Weidmüller present modular infrastructure box

Posted 6 years ago

Belden router streamlines management of industrial networks

Posted 6 years ago

WLAN software enables secure and reliable wireless connections

Posted 6 years ago

Belden joins AVnu Alliance to support IoT

Posted 6 years ago

Flexible, entry-level Ethernet switch for industrial networks

Posted 6 years ago

Gigabit switch redesigned: improved uptime in harsh environments

Posted 6 years ago

Moulded cord sets support high-speed network connections

Posted 6 years ago

Belden's multi-port industrial firewalls gain added flexibility

Posted 7 years ago

Versatile new industrial router and security appliance

Posted 7 years ago

Cord sets designed for extreme wash-down environments

Posted 7 years ago

Industrial Ethernet switches for future-proof network design

Posted 7 years ago

Tofino Xenon and Configurator 2.0 for control system security

Posted 7 years ago

Belden introduces EMEA-wide network certification program

Posted 7 years ago

Entry-level industrial Ethernet switches for harsh environments

Posted 7 years ago

"˜Near wired' reliability for industrial wireless devices

Posted 7 years ago

Less complexity for managed switches for industrial networks

Posted 7 years ago

Monitor Hirschmann switch status with new HiMobile App

Posted 7 years ago

Industrial HiVision 5.1 can increase network availability

Posted 7 years ago

Belden to show Industry 4.0 live demo at Hanover Fair 2014

Posted 7 years ago

DataTuff Industrial Ethernet cables and connectivity

Posted 7 years ago

ConneXium Tofino Firewall protects EtherNet/IP communications

Posted 7 years ago

Belden offers efficient option for power over Ethernet

Posted 7 years ago

Industrial Ethernet infrastructure design seminar with Belden

Posted 7 years ago

Belden launches 24/7 technical support plan in EMEA

Posted 7 years ago

Network protection with EAGLE One industrial security router

Posted 7 years ago

WLAN firmware extends useful life of industrial wireless devices

Posted 7 years ago

Belden launches Industrial HiVision v5.0 with free trial

Posted 8 years ago

Hirschmann Brand OBR40 optical bypass relay

Posted 8 years ago

Complete Lumberg Automation connector portfolio from Belden

Posted 8 years ago

New service for automatic update of Industrial HiVision

Posted 8 years ago

Hirschmann field-attachable valve connectors from Belden Inc.

Posted 8 years ago

Belden extends its Lumberg Automation LioN-R Series

Posted 8 years ago

Belden adds Hirschmann PowerMICE switch for DIN rail mounting

Posted 8 years ago

Lumberg Automation I/O modules for PROFINET and EtherNet/IP

Posted 8 years ago

OCTOPUS PoE switches with integrated power supply

Posted 8 years ago

New Lumberg automation robotic product programme from Belden

Posted 8 years ago

OCTOPUS Train-BP, a new Hirschmann brand managed IP67 switch

Posted 8 years ago

New Lumberg Automation wash-down connectors from Belden

Posted 8 years ago

ConneXium Tofino: a simple way to secure automation systems

Posted 8 years ago

The Connectivity Center speeds up customer-specific developments

Posted 8 years ago

Belden adds Hirschmann and Lumberg Automation brands

Posted 12 years ago

Wolfgang Babel named new president of Belden EMEA

Posted 13 years ago

Belden launches new distributor programme

Posted 13 years ago

New DataBus cables for Fieldbus applications

Posted 13 years ago

Specialist cables for factory and process automation

Posted 13 years ago

Belden to exhibit new products at GITEX 2007

Posted 14 years ago

Belden to exhibit at INTERKAMA 2007

Posted 14 years ago

Belden publishes 500-page connectivity catalogue

Posted 14 years ago

PAT becomes Hirschmann's Electronic Control Systems division

Posted 14 years ago

Hirschmann Automation and Control founds joint venture in China

Posted 14 years ago

More applications