Bridging the Intrinsically-Safe Fieldbus Disconnect

Engineers have long struggled with how to use Fieldbus in hazardous areas. The installation of Intrinsically-Safe (I.S.) fieldbus has typically required the use of installation schemes mixing wiring methods such as Division 1 and Division 2 (Zones 0, 1, 2). However, new concepts such as the High-Power Intrinsically-Safe Trunk allow for the use of fieldbus in hazardous areas without complex installation. This white paper reviews the different methods of fieldbus installation in hazardous areas and breaks down the advantages and drawbacks of each.



Installing Fieldbus White Paper

Most engineers understand the many benefits of using fieldbus technology in a variety of settings. However, installing fieldbus can be tricky for engineers with limited experience using the technology, especially since there are additional considerations above and beyond traditional 4-20mA projects. This white paper walks you through the unique challenges posed by fieldbus installations, including power supplies, device couplers and cabling.



Intrinsically-Safe Fieldbus Applications for Yokogawa Control Systems

The ROUTE-MASTER Fieldbus System from MooreHawke is a recommended option by Yokogawa to power Intrinsically-Safe (I.S.) fieldbus segments. This white paper addresses how the ROUTE-MASTER system can be used in I.S. applications with FISCO or Entity devices located in Class I, Division 1 or Zone 0/1 locations. Special plug-to-plug connections designed for Yokogawa host systems allow for reduced wiring and easier commissioning.