Category: Emerson

Ease of Use

• Enhanced Safety — The DVC7K is a HART®

communicating device; information can be accessed

anywhere along the loop. This flexibility can reduce

exposure to hazardous environments and make it easier

to evaluate valves in hard-to-reach locations.

• Local User Interface (LUI) — The full text display in

the local interface is easy to navigate due to the six

button LUI (Figure 2). Each unit can be configured to

display Arabic, Chinese, Czech, English, French, German,

Italian, Japanese, Korean, Polish, Portuguese, Russian or

Spanish. View the Travel vs. Travel Setpoint, Instrument

Mode and Valve Health instantly from the home screen.

• Valve Health — Identify the health status of the valve

assembly at a distance with the NE 107 LED indicator.

Quickly troubleshoot issues and identify recommended

actions with Advice at the Device. Additionally, use the

LUI to view primary variables like supply pressure and

input current.

• Faster Commissioning — HART communications allow

the user to quickly commission loops with a variety

of tools from a remote location or locally at the valve

assembly with the LUI.

• Flexible Connectivity — Emerson’s secure Bluetooth®

wireless technology implementation (future release)

enables ability to see health across multiple valves.

• Easy Maintenance — The DVC7K is modular in design.

Critical working components can be replaced without

removing field wiring or pneumatic tubing.

Features

Reliability

• Linkage‐Less Non‐Contact Position Feedback — The

high performance, linkage-less feedback system, shown

in Figure 1. eliminates physical contact between the valve

stem and the instrument. There is no wearing of parts

so cycle life is maximized. Additionally, the elimination

of levers and linkages reduces the number of mounting

parts and mounting complexity. Instrument replacement

and maintenance is simplified because the feedback

parts stay connected to the actuator stem.

• Built to Survive — The DVC7K’s field-proven conformal

coated electronics resist the effects of vibration,

temperature and corrosive atmospheres per the

ISA.75.13 standard. A weather‐tight housing construction

protects the wiring terminal box and critical components

from harsh environmental conditions.

• Eliminate Solenoids  — DVC7Ks in the On/Off

Application Mode provide a more reliable solution over

traditional solenoid valves. They also provide diagnostic

alerts to support early identification of problems

The FIELDVUE DVC7K digital valve controller is reliable

and intuitive, featuring diagnostics that are targeted for

your On/Off applications. It converts a 4-20 mA or 24 V DC

input signal into a pneumatic output signal that controls

the actuator on the valve. Perform setup and configuration

procedures, check the valve health, and get Advice at the

Device™ using the simple-to-use Local User Interface

(LUI). The interface can be configured to support multiple

languages with a few button pushes.

Performance

• Accurate and Responsive — The two‐stage instrument

design provides quick response. Additionally, the DVC7K

allows users to customize the performance of their valve,

with a configurable ramp open rate and ramp closed rate.

Interactive Display

Access locally while maintaining safety.

The backlit liquid crystal display provides a local operator direct access

to the device, without removing the front cover. The display provides

four infrared ‘buttons’ that allow you to securely sign in and then

interact with the flow computer in the hazardous environment without

compromising safety. Four LEDs on the display provide you alarms and

status information.

FBxWifi™

Easily connect through a secure wireless network.

FBxWifi enables you to connect your laptop or tablet to the flow

computer through a secure wireless connection. Once connected, you

can use FBxConnect configuration software to view process values, edit

configuration parameters, update set-points and collect logs stored in the

flow computer — all while never stepping foot in the hazardous area.

Integrated Firmware

Everything you need, already there.

The integrated firmware of the FB2000-Series Flow Computer

contains all the functionality you’re looking for. A full set of global

calculations including support for Orifice, Cone, Venturi, Nozzle &

Rosemount Conditioning plate DP meters as well as Turbine, Coriolis

and Auto Adjust linear meters are embedded in the unit. Simply

select the software you plan to use and audit without the need for

extra user programs and licenses.

Multivariable Sensor

Superior technology, unparalleled precision.

Equipped with the latest Rosemount™ multivariable measurement sensor

(MVS) technology and engineered for optimal flow performance, the MVS

delivers unparalleled accuracy over a wide range of operating conditions.

Pressure inputs on the sensor are used to measure both differential (DP)

and static (absolute or gauge) pressure with an operating range up to

3600 psia and a five year stability.

FBxConnect Tool

Guided workflow simplifies configuration.

FBxConnext provides a guided configuration process that takes you

through a step-by-step process to fully configure your flow computer.

This wizard-driven approach simplifies configuration and ensures that you

only need to enter required data once. Whether it’s you or your newest

technician, you can be confident that it is done the right way.

Interactive Display

Access locally while maintaining safety.

The backlit liquid crystal display provides a local operator direct access

to the device, without removing the front cover. The display provides

four infrared ‘buttons’ that allow you to securely sign in and then

interact with the flow computer in the hazardous environment without

compromising safety. Four LEDs on the display provide you alarms and

status information.

Limited Time and Resources?

Operate more effectively with simplified configuration and support.

Simplified configuration and support of devices make every aspect of your operation more

effective. The new family of flow computers offers a variety of features that reduce the time

required to configure devices, reduce the likelihood of configuration errors, and reduce the

amount of training required to be effective.

Concerned with Operator Safety?

Access data locally without compromising safety.

Maintaining a safe operation is your top priority, and yet technicians are typically required to

compromise hazardous area approvals to access flow computers. No longer. With FBxWifi or the

Local Interactive Display, the FB2000-Series Flow Computers can be accessed for data collection, set

point and configuration changes, easily without opening the enclosure – which makes your people,

equipment, and operation safer than ever.

Enhanced Metrology Platform Minimized measurement risk.

With an industry-leading global suite of metrology calculations –

validated by third parties – you can be confident that no matter where

you are you’ll find what you need. Add in enhanced fallback mode, global

compliance, and role-based security and you can be confident that

measurement risk has been minimized with all your calculations in the

base firmware and your audit risks are contained.

Communications Protocols

The FB2200 supports multiple communications

protocols, including DNP3. Modbus master and slave

(ASCII and RTU), BSAP, and ROC on the three serial

ports. In addition, the Ethernet port supports RTU

Modbus over TCP/IP protocol (master and slave),

DNP3/IP, ROC and BSAP.

FBxNet™

FBxNet is a secure, easily configurable, peer-to-peer

communication network for exchanging data between

Emerson FB3000 RTUs and FB1200 and FB2200 flow

computers over an Ethernet connection. FBxNet

supports subscriber and publisher devices, where

publishers provide data to their subscribers. The

FB3000 RTUs and FB1200 and FB2200 flow computers

can be publishers; only an FB3000 can be a subscriber.

For more information, refer to product data sheet

FBxNet (part D301905X012).

Mounting Options

The FB2200 supports direct mounting to a manifold on

the pipeline, simple wall mounting, or mounting on a

two-inch pipe with the stainless steel pipe mounting kit.

communications

Communications

The FB2200 provides up to five user-selectable

communications ports: three serial ports, one Ethernet

port, and one optional port that supports FBxWifi

(802.11 b/g) communications using DNP3 protocol.

▪ COM1 – 4-wire serial communications. Software

selectable for EIA-232 (RS-232), EIA-422 (RS-422), or

EIA-485 (RS-485) operation.

▪ COM2 – 2-wire serial communications. Software

selectable for EIA-232 (RS-232) or EIA-485 (RS-485)

operation.

▪ COM3 – 2-wire serial communications. Software

selectable for EIA-232 (RS-232) or EIA-485 (RS-485)

operation.

▪ COM4 –FBxWifi (802.11 b/g) communications

(optional).

▪ COM5 – Ethernet. 10/100BASE-T twisted pair.

Supports up to seven sessions.

Communications Protocols

The FB2200 supports multiple communications

protocols, including DNP3. Modbus master and slave

(ASCII and RTU), BSAP, and ROC on the three serial

ports. In addition, the Ethernet port supports RTU

Modbus over TCP/IP protocol (master and slave),

DNP3/IP, ROC and BSAP.

User Data Points – User data points are configurable

storage areas in the data base. These user data points

can store the constants / variables that are inputs to

the math blocks in addition to the calculated results of

math blocks. They can also be used to represent

interim calculation values or values of additional inputs

or outputs etc. There are eight user data instances,

each with a tag and description, 30 integers (split

between byte, short and long), 20 single floating

points, and 10 double floating points, providing

storage for up to 480 variables.

User Data Points – User data points are configurable

storage areas in the data base. These user data points

can store the constants / variables that are inputs to

the math blocks in addition to the calculated results of

math blocks. They can also be used to represent

interim calculation values or values of additional inputs

or outputs etc. There are eight user data instances,

each with a tag and description, 30 integers (split

between byte, short and long), 20 single floating

points, and 10 double floating points, providing

storage for up to 480 variables.

Math Blocks – The FB2200 supports up to ten math

blocks. Math blocks perform mathematical equations

using user-defined variables as inputs. Each math

block consists of up to four user-defined variables,

three mathematical calculations, and the results of

each calculation.

The result of the math block equation can be assigned

to a user data point, to drive an output point, to a

calculated value or to any other data base parameter.

Mathematical calculations also support standard math

functions (POW, EXP, LOG, SQRT, etc.), constants, and

operators.

FBxConnect checks each calculation string for the

correct syntax and uses double precision floating point

math throughout the calculation.