Data Sheet

DVC2000 Digital Valve Controller
D103167X012
Product Bulletin
62.1:DVC2000
March 2014
4
n Reliability—The DVC2000 is based on the
field-proven FIELDVUE technology. Years of control
experience has brought this product line to a high
level of reliability and dependability.
n Performance—The two-stage positioner design
provides a mechanical platform that enables
responsiveness to small input changes and tighter
process control. The digital tuning algorithm allows
optimal response to get the valve to its desired
position quickly.
n Diagnostics—Local User Interface: DVC2000
instruments come standard with a liquid crystal
display. Predefined instrument and valve
diagnostics are built into the firmware to alert you if
there are any problems with the mounting,
electronics, hardware, or valve performance.
Handheld Field Communicator: DVC2000
instruments are packed with user-configurable
alerts and alarms. These flags provide notification of
current status and potential valve and instrument
problems through alerts such as travel deviation,
travel limit, cycle count, and travel accumulation.
ValveLinkt software: Tests can be performed to
identify problems with the entire control valve
assembly using ValveLink software. Using valve
stem travel feedback, actuator pressure sensor, and
other sensors on the instrument, the health of the
control valve can be evaluated while the valve is still
in service and fully operational. This helps to
pinpoint problems without disrupting the process -
before the equipment fails.
n I/O Options Package— The DVC2000 is available
with an I/O Options Package which includes two (2)
integral limit switches and a stem position
transmitter. The limit switches are configurable for
open and closed valve indication at any point
throughout the calibrated travel range. The position
transmitter provides a 4-20 mA signal for valve
position feedback verification. As an integral
component to the instrument, this option module
avoids the need for difficult-to-mount external
switches and transmitters.
Integration
Traditional 4-20 mA Systems
Because the DVC2000 instrument operates with a
4-20 mA control signal, it directly replaces older
analog instruments. Microprocessor based electronics
provide improved control performance along with
repeatable and reliable configuration and calibration.
Modbus with ValveLink Software
and HART Multiplexers
HART communication allows you to extract more
value from the DVC2000 instrument beyond its
inherent improved performance. When integrated into
a multiplexer network and using ValveLink software,
the device and valve information is real-time. From the
safety of a control room, multiple instruments can be
monitored for alerts and alarms.
Additionally, tasks such as configuration, calibration,
and diagnostic testing do not require special trips to
the field. ValveLink software can communicate via
Modbus to the distributed control system (DCS) to
provide critical information such as valve travel alerts
and alarms.
Integrated Control System
A control system with HART communication
capabilities has the ability to directly gather
information from DVC2000 digital valve controllers.
Information such as valve travel, alerts and alarms can
be seamlessly accessed to provide a view into the field
device from the safety of the control room.