FOUNDATION Isolated Device Coupler (FIDC), bus-powered
FOUNDATION Device Coupler
The FieldConnex® Diagnostic-enabled FieldBarrier is a device coupler with
8...12 outputs. Outputs are isolated and intrinsically safe Ex ia. Spurs
feature advanced fault protection as described below.
Many new features that are described below contribute to excellent
reliability of the plant automation system. Alerts to operators and
maintenance staff indicating location inform of decay or unwanted
conditions thus enabling proactive plant upkeep avoiding unwanted plant
Installation in hazardous areas
This compact housing mounts on a DIN-rail and allows for installation in
very small space. Stainless-steel and GRP housings are pre-engineered
with many options and delivered ready for installation. For application
in hazardous areas the:
* FieldBarrier can be installed in Zone 1/Div. 2
* Fieldbus instruments can be located in Zone 0
Live working is possible on trunk and spurs.
Internal components such as the terminator are connected without excess
wiring and feature high integrity. Increased safety connections, which
require maintenance, are kept to a minimum ensuring high product
integrity. Critical electronic components of the FieldBarrier are
built-in with redundancy or monitored for degradation.
Segment Diagnostics for Superior Automation Integrity
The FieldBarrier offers diagnostic functions for superior availability of
fieldbus segments through protection at the spur from
* Contact bounce that can occur during disconnect operations, vibration
or other conditions
* Excessive communication from faulty devices (jabber)
* Creeping short-circuits through progressive protection
The FieldBarrier is equipped with physical layer diagnostics, which
monitors for ground faults, signal level, noise and jitter separately at
each spur. It includes internal monitoring of crucial electronic
components. Additionally the FieldBarrier supports accessories with
diagnostics: Surge protectors detect wear depending on severity of the
strike and enclosure leakage sensors detect water ingress or condensation.
Alarms from the FieldBarrier and connected accessories are displayed in
the control or asset management system indicating the affected spur or
device. Alarming in conjunction with the expert system embedded in the
FieldConnex® Diagnostic Manager allow for proactive plant upkeep.
Components communicate in parallel to normal fieldbus communication,
without fieldbus addressing or additional bandwidth. Engineering is
limited to purchase and installation of the component. Advanced
Diagnostics automatically detects affected spurs and issues alarms in
easy to understand forms.
Additional attributes are:
* Outputs intrinsically safe Ex ia IIC, permitting live work on the spur
* LED indicators for communication, diagnostics power and faults
* DIP switches for selecting physical layer alarm information
* Built in terminator selectable via jumper.
The FieldBarrier is a core component of the High-Power Trunk concept. In
combination with FieldConnex® Power Hubs the FieldBarrier enables long
cable runs and many field devices with hot work permitted on devices. It
supports all user choices for grounding and shielding.
163 - Foundation Isolated Device Coupler, bus-powered
Number of Spurs:
8, 10, or 12