FieldConnex® for Fieldbus™ Foundation

At the field level of an automated process production plant the field devices communicate among each other by means of Foundation Fieldbus H1, triggered by the Link Active Scheduler (LAS). Following the standard IEC 61158-2 one single two-wire cable combines digital communication and power supply of the connected field devices. Various explosion protection concepts can be utilized, depending on the application environment. The state-of-the-art FieldConnex® High-Power Trunk Depending on the environment concept allows an efficient protection by means of energy limitation in Zone 2/Class I, Div. 2 and respectively by intrinsic safety in Zone 1/Class I, Div. 1.

FieldConnex® for PROFIBUS

The communication between PROFIBUS Master and the connected field devices as PROFIBUS Slaves can basically be differentiated into three types:

• Communication without power supply over the same line: PROFIBUS DP, physical Layer RS485
• Communication and power supply of the field devices over one common line: PROFIBUS PA, physical layer according to IEC 61158-2 (MBP, Manchester Bus Powered)
• Intrinsically safe communication and power supply of the field devices over one common line: PROFIBUS PA, physical layer according to IEC 61158-2 (MBP-IS, Manchester Bus Powered – Intrinsically Safe)

All components for safe and reliable communication and field device power supply are available in the FieldConnex® system. For detailed information on PROFIBUS we recommend www.profibus.com.

FuRIOS

Furios stands for Fieldbus and Remote I/O system comparison. Under this project title the companies Infraserv Höchst and Aventis Pharma analyzed the differences in plant communication designs, Remote I/O versus PROFIBUS PA. The evaluation covered the pure investment costs and the long-term operation costs as well as ‚Soft factors’ like staff training, safety of operation and production quality. The basis of the comparison was a pharmaceutical-chemical production plant consisting of 369 process control points, 821 I/Os as well as numerous drive engines, pumps and converters. The plant was equipped with Remote I/O and commissioned by Aventis a short while ago. The topology of this plant was planned 1:1 with PROFIBUS components and the resulting costs calculated.