Tuesday, 01. September 2009 Advanced Fieldbus Power Supply provides unique integrated features for physical layer diagnosis
Category: Product-News
The new Advanced Fieldbus Power
Supply provides integrated functions
for physical layer diagnosis
In addition to the ISbus Fieldbus Power Supply System, R. STAHL introduces a new, innovative power supply for FOUNDATION™ fieldbus H1 applications. The Advanced Fieldbus Power Supply features a wide range of additional diagnostic functions for monitoring fieldbus segments. The power supply generates a warning message if the transmission quality in the bus deteriorates, thus allowing users to intervene in time before the segment fails. Due to attractive pricing just approximately 10% above the simple Fieldbus Power Supply, the high-performance type enables complete, continuous plant monitoring without considerably raising the investment costs.
The Advanced Fieldbus Power Supply continuously reads the physical parameters (physical layer) of the fieldbus, such as voltage and current on the trunk, communication level, noise level, asymmetries and jitter. If these parameters deteriorate by a value that can be freely adjusted on the device, the system will signal a warning via a yellow LED and simultaneously transfer the warning message to the control system via a potential-free relay contact. Situations which completely exceed or fall below the fieldbus specification are signalled via a red LED and the relay contact. The Advanced Fieldbus Power Supply can be connected to a PC via a serial interface in order to read out data if detailed information about physical layer parameters is required. Just like the basic version, the Advanced Fieldbus Power Supply System supplies the fieldbus with 28 V and 500 mA and enables a 1 A supply via a parallel connection of two devices in “Boost” mode. An additional advantage: the optional redundant supply also ensures redundant diagnosis. The units, which can be installed on a DIN rail or on bus-Carriers, can be operated in mixed installations with basic models.
Featuring the completely new integrated physical layer diagnosis concept, the Advanced Fieldbus Power Supply System allows for integrated, cost-efficient monitoring of fieldbus installations, rendering complex and costly separate diagnosis modules unnecessary.
Contact:
R. STAHL
Kerstin Wolf
Am Bahnhof 30
74638 Waldenburg
Germany
Tel.: +49 7942 943 - 4300
Fax: +49 7942 943 - 404300
E-mail: presse@stahl.de
Internet: www.stahl.de