Use of Fieldbus System in I.S. Applications

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Use of Fieldbus System in I.S. Applications
Use of Fieldbus System in I.S. Applications

A new white paper highlights the use of the ROUTE-MASTER Fieldbus System from MooreHawke - a division of Moore Industries-International - in Intrinsically-Safe (I.S.) applications for Yokogawa Control Systems. The paper addresses FISCO or Entity devices located in Class I, Division 1 or Zone 0/1 locations. ROUTE-MASTER is a recommended option by Yokogawa to power I.S. fieldbus segments.

The ROUTE-MASTER system has a patented "split architecture" giving each segment the availability of two trunks at 350mA - the highest segment current to any I.S. FOUNDATION fieldbus or PROFIBUS PA system. This allows up to 16 fieldbus devices to be powered by each trunk. Special plug-to-plug connections designed for Yokogawa host systems allow for reduced wiring and easier commissioning. The ROUTE-MASTER device couplers have I.S. rated spur connections that allow technicians to perform live work in hazardous areas including Zone 0 IIC or Class I Div 1 Groups ABCD.

ROUTE-MASTER couplers also feature Automatic Segment Termination, which eliminates common problems such as over- and under-termination while ensuring that local parts of a segment remain functioning if remote parts are accidentally disconnected. Further protection is offered by a "Fold-Back" technique that provides automatic and fully auto-resetting spur short-circuit protection to prevent segment failure caused by single device faults.

The "Intrinsically-Safe Fieldbus Applications for Yokogawa Control Systems" white paper gives end users a clear understanding of the competitive advantages of the ROUTE-MASTER system and provides useful installation information and real-world examples of its use in I.S. applications.

Posted on October 9, 2014 - (14551 views)
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Moore Industries
16650 Schoenborn Street
91343 North Hills - USA
+1-818-8947111
+1-818-8912816
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