Fieldbus & Industrial Networking


Fieldbus barriers for intrinsically safe applications

March 2007 Fieldbus & Industrial Networking

MTL has released the 9311-FB fieldbus barrier. This fieldbus barrier is a field-mounted wiring hub that creates intrinsically safe spur connections from a non-intrinsically safe trunk, for connection to Foundation Fieldbus H1 or Profibus-PA fieldbus field devices. It may be installed in a zone 1 (gas) or zone 21 (dust) hazardous area, with the trunk wiring implemented using suitably protected cable and increased safety (Ex e) connection facilities. Each unit supports four intrinsically safe spurs, which may be connected to FISCO or 'Entity' certified fieldbus devices in a Zone 1 or Zone 0 hazardous areas. The spurs are short circuit protected. Each unit includes an optional fieldbus terminator by means of a linking plug.

The 9311-FB Fieldbus barrier is bus-powered and requires no additional power supply in the field. Typically, up to three 9311-FB units may be connected to one hazardous area trunk, allowing up to 12 intrinsically safe fieldbus devices to be supported on the hazardous area segment.

When used with a fieldbus host control system, power for the trunk may be provided by the MTL-Relcom FPS Series power supplies in redundant or non-redundant format. For F800-based power supply systems, the F802 power module will provide a high output voltage and current, making it ideal for use with the 9311-FB.

This module may be housed in a variety of field enclosures, to suit end-user requirements. A range of standard, single-unit glass reinforced polyester and stainless steel enclosures will be available for smaller projects. A custom systems capability will satisfy projects that require more than one fieldbus barrier per enclosure or ancillary components.

For more information contact K.V. Dahya, Extech Safety Systems, +27 (0)11 791 6000, [email protected]



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Premium unmanaged industrial switch
Vepac Electronics Fieldbus & Industrial Networking
Premium unmanaged industrial switch for long-distance, noise-free fibre connectivity

Read more...
Fire and gas suppression solutions for mission-critical industries
Fieldbus & Industrial Networking
By representing world-leading brands and focusing on fully integrated, certified systems, HMA South Africa is positioning itself as a trusted partner in fire detection, suppression and explosion-proof safety solutions across the continent.

Read more...
The future of manufacturing
Fieldbus & Industrial Networking
Industrial automation is evolving at an unprecedented pace. At the forefront of this transformation is the Siemens SIMATIC ET 200SP HA Distributed I/O system. This is a flexible and scalable distributed I/O system for modern signal transfer from the field to the control level.

Read more...
Time-sensitive networking
RJ Connect Editor's Choice Fieldbus & Industrial Networking
In this article, we will explore what is driving the rise of time-sensitive networking, how it is reshaping industrial efficiency, the challenges when deploying this technology, and ways to tackle these challenges.

Read more...
Loop Signature 30: Nonlinearity in control loops (Part 1)
Michael Brown Control Engineering Editor's Choice Fieldbus & Industrial Networking
If nonlinearity occurs it means that if one is to carry on controlling with the same response to changes in load or setpoint, then the tuning of the controller will also need to be adjusted to meet the new conditions.

Read more...
PC-based control regulates innovative dehumidifiers
Beckhoff Automation Fieldbus & Industrial Networking
Swedish company, Airwatergreen is breaking new ground in the dehumidification of air in industrial buildings and warehouses. The patented CVP technology reduces energy requirements and ensures an indoor climate that prevents corrosion and mould growth. PC-based control from Beckhoff regulates this innovative process.

Read more...
Ethernet connectivity for embedded systems
Fieldbus & Industrial Networking
Delivering Ethernet connectivity for embedded systems, XPort ETH Click is a compact add-on board from MIKROE, the embedded solutions company that dramatically cuts development time by providing innovative hardware and software products based on proven standards.

Read more...
Compact mini PC
Vepac Electronics Fieldbus & Industrial Networking
AS AAEON’s first Intel Core-powered PICO-SEMI system capable of fanless operation, the PICO-MTU4-SEMI from Vepac Electronics is easily deployed as part of larger equipment setups or integrated as the central unit of smart robotics solutions such as AGVs, AMRs and drones requiring minimal maintenance.

Read more...
Future-ready I/O to redefine connectivity
Schneider Electric South Africa Fieldbus & Industrial Networking
Schneider Electric South Africa has launched its state-of-the-art Modicon Edge I/O NTS. This future-ready I/O redefines connectivity, data aggregation and operational efficiency for industrial applications.

Read more...
Referro Systems delivers industrial connectivity
Fieldbus & Industrial Networking
To meet the growing demand for secure, flexible and reliable remote access for industrial network connectivity for its clients, Referro Systems has added Rockwell Automation’s Stratix 4300 to its inventory of products.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved