Category: Emerson

Performance

• Easy Adjustment and Tuning—The electro pneumatic DPC2K improves the 

ability to correctly tune your process versus pneumatic only controllers

by making the data available for real time trending, setting PID parameters digitally,

and by remote monitoring of the loop performance. With legacy pneumatic instruments,

small dial changes or movements could result in undesired or unexpected tuning changes.

With a digital instrument, tuning parameters are entered directly and the PID

control algorithm responds appropriately.

Loop response and disturbance rejection are easily setup through the local

interface or remotely via LoopConnect software.

This flexibility in responsiveness ensures youroperation maintains productivity

throughout the lifecycle.

• High Sample Rate and Configurable Deadbands allow you to balance performance

with valve longevity, resulting in improved process stability and valve performance

The software uses drag and drop, guided tasks, color changes, and simple data

entry to create a consistent user experience for a wide range of

applications and process loop performance requirements.

Monitoring of Alerts, Alarms and Process Status is available on network connected controllers.

• Lower Support Costs—The consistent user experience provided by

LoopConnect software helps reduce troubleshooting and product support needs.

Digital communication enables easy access to the condition of the process loop.

Ethernet communication supports multiple simultaneous sessions which

may be monitored by operations, maintenance, and engineering.

These connections ensure all groups can make real time process

control and maintenance decisions, reducing the need for manual

oversight of the control loop.

Value

• Cost Effective—The integrated design of the DPC2K significantly

reduces the cost of installation compared to other electro-pneumatic solutions.

Once installed, the self-contained package ensures the lowest cost of implementation.

Low power electronics and optional integrated pressure

sensor and pneumatic output, shown in Figure 2.

minimize the need for extra wiring, conduit, and enclosures.

• Application Flexibility—The DPC2K supports a variety of measurement

types and provides control signals for either pneumatic or analog controls.

Almost anywhere a single PID control loop is required,

the DPC2K can be counted on to provide a consistent user experience.

• Ease of Use—The LoopConnect Configuration and Monitoring software

interface allows the grouping of task-based actions, thus simplifying configuration.

Process Data

Stranded process data becomes a thing of the past when using

the DPC2K as an upgrade for standalone pneumatic controllers.

Data can be used for near real time data driven decisions which

can save money by averting downtime and improving the

performance of process systems.

Networked communication and simplified monitoring allow your

support infrastructure to troubleshoot process issues and prepare mitigation,

therefore minimizing the downtime needed to diagnose a potential problem.

With multiple simultaneous sessions supported, the right resources

can collaborate to optimize performance of the process loop and take the

guesswork out of tuning and operation. This also enhances employee safety by eliminating

unnecessary travel, reducing on-site risk, and minimizing process disruptions.

Designed to be integrated within your company’s network security,

the DPC2K has flexible methods to secure communications by protocol andport.

A physical switch can also be used to lock configurations and

prevent unwarranted changes.

The firmware utilizes priority for the control algorithm to ensure operation

in case of cyber attacks against the network infrastructure.

Safety and Reliability

• Tested in Use—The low-bleed pneumatic design has been field

proven to provide reliable control in harsh environments.

Non-contact readback of the valve position ensures proper

operation of the PID control algorithm.

• At a Glance Displays—User-friendly displays in the software

and at the local user interface provide easy access to the

information needed to keep the process running smoothly.

Efficient Operation

• Fast Commissioning—When compared to a programmed solution,

a configured instrument such as the DPC2K reduces the time and labor

needed to bring the process loop into operation.

• Networkability—Ethernet communications allows for quick integrate

into SCADA or control systems.

Remote monitoring is supported via Modbus TCP or Modbus RTU serial data paths.

• Local Access—The six button interface supports local operation

even in harsh environments.

The Fisher FIELDVUE DPC2K digital process controller is an electro-pneumatic PID controller

that provides local control for continuous, single PID loops.

Installation, configuration, and monitoring are fast and easy with network connected Ethernet

communication, providing application flexibility for expansion or modernization projects.

Control at the Valve

The DPC2K may be connected directly to the process and has an integral

travel sensor that provides actual feedback when mounted on a control valve.

It uses proven linkageless non-contacting technology that supports both

rotary and linear valve applications.The DPC2K provides direct/reverse-acting

PID, and advanced functions such as anti-reset windup and dynamic reset limiting.

Features

Application Flexibility

• Control at the Valve—Easily apply to pressure loop applications using the

optional integral pressure sensor. Application flexibility for other process

control applications such as temperature, level, flow, and more

using a 4 to 20 mA transmitter.

• PID Control—With both pneumatic and analog control outputs,

the DPC2K is ideal for use in expansion or modernization projects,

including for air/gas operated actuators or analog control for

electric actuators, variable frequency drives, and pumps.

• Intuitive and Simple Configuration—Traditional controllers typically

require skilled programming and can be difficult to support and maintain.

Using LoopConnect™ software, configuration and setup

are straightforward and easy to navigate..

Device Alerts

The DVC6200p digital valve controller provides a

comprehensive library of device alerts and fully

supports NAMUR NE 107. Using Emerson’s Human

Centered Design concept of the Device Dashboard

graphical user interface, device alerts are easily

accessed via a PROFIBUS configuration tool such as

Siemens PDM. When installed as part of a PROFIBUS

communicating system, the DVC6200p delivers

prompt notification of current issues directly on

the Overview Page and Alerts Summary Page (see

figure 2 and 3).

Alerts assist in identification and notifications, along

with recommended actions to resolve situations such

as the following:

• Valve travel deviation due to excessive valve friction

or galling

• High cycle due to dither or improper tuning

Figure 3. Alerts Summary

ACTIVE ALERT INDICATED BY CHECKBOX

• Total travel movement has accumulated beyond a

specified point resulting in packing wear

• Travel sensor failure

• Valve travel is above or below a specified point

• Various instrument mechanical and electrical issues

Device Alerts

The DVC6200p digital valve controller provides a

comprehensive library of device alerts and fully

supports NAMUR NE 107. Using Emerson’s Human

Centered Design concept of the Device Dashboard

graphical user interface, device alerts are easily

accessed via a PROFIBUS configuration tool such as

Siemens PDM. When installed as part of a PROFIBUS

communicating system, the DVC6200p delivers

prompt notification of current issues directly on

the Overview Page and Alerts Summary Page (see

figure 2 and 3).

Alerts assist in identification and notifications, along

with recommended actions to resolve situations such

as the following:

• Valve travel deviation due to excessive valve friction

or galling

• High cycle due to dither or improper tuning

Figure 3. Alerts Summary

ACTIVE ALERT INDICATED BY CHECKBOX

• Total travel movement has accumulated beyond a

specified point resulting in packing wear

• Travel sensor failure

• Valve travel is above or below a specified point

• Various instrument mechanical and electrical issues

Value

• Hardware and Installation Savings— Significant

savings can be achieved in reduced wiring,

installation, and hardware requirements compared

to traditional integrated control systems. By

utilizing function blocks such as Discrete Input and

Analog Input blocks, the need for limit switches and

position transmitters can be eliminated, providing

additional savings in hardware and installation costs.

• Improved Maintenance Decisions— Digital

communication provides easy access to the

condition of the valve. Sound process and asset

management decisions can be made by analysis of

valve information through device alerts that provide

details of the operational state of the final control

element (see figure 1).

Features

Reliability

• Linkage‐Less Non‐Contact Position Feedback— The

high performance, linkage‐less feedback system

eliminates physical contact between the valve stem

and the DVC6200p. There are no wearing parts so

cycle life is maximized.

• Built to Survive—The field proven DVC6200p

instrument has fully encapsulated electronics that

resist the effects of vibration, temperature, and

corrosive atmospheres. A weather‐tight wiring

terminal box isolates field wiring connections from

other areas of the instrument.

Performance

• Accurate and Responsive— The two‐stage positioner

design provides quick response to large step

changes and precise control for small setpoint

changes.

• Travel Control/Pressure Fallback— Valve position

feedback is critical to the operation of the digital

valve controller. The DVC6200p can detect position

feedback problems and automatically revert to I/P

transducer mode to keep the valve operational.

Ease of Use

• Enhanced Safety— The DVC6200p is a PROFIBUS PA

communicating device, so 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.

• Fast Commissioning— PROFIBUS communication

allows you to quickly commission loops remotely

using the PROFIBUS configuration tool with the

DVC6200p Electronic Device Description (EDD).

The DVC6200p can also be locally

calibrated/commissioned by shorting the auxiliary

terminal located in the terminal box.