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Management of Change Guide: Upgrading from Fisher FIELDVUE DVC6200 HW1 to HW2
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Fisher Management of Change Guide: Upgrading from Fisher FIELDVUE DVC6200 HW1 to HW2 Manuals & Guides

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Upgrading from Fisher™ FIELDVUE™ DVC6200 HW1 to DVC6200 HW2
Table of Contents
Management of Change Guide
September 2018 / D352319X012
FIELDVUE DVC6200 HW1 and DVC6200 HW2
Terminal Box ....................................................................... 3
Printed Wiring Board .......................................................... 4
Rear Housing ...................................................................... 4
Firmware ............................................................................ 4
DVC6200 HW1 to DVC6200 HW2 Transition
Electrical ............................................................................. 5
Position Control Capability ................................................. 6
Diagnostics Capability ........................................................ 6
Operating Ambient Temperature Limits .............................. 6
Steady State Air Consumption ............................................ 6
Maximum Output Capacity ................................................. 6
Connections ....................................................................... 6
Available Congurations ..................................................... 6
Retrotting ......................................................................... 6
Management of Change
Management of Change (MOC) is a procedure used to proactively manage changes that have the potential to impact safety or the process within a plant. Evaluating new techniques for improving MOC approval procedures can have an impact on
plant efciency. Historically, upgrading obsolete products or replacing existing
process control equipment had been delayed or abandoned due to the extensive paperwork involved in completing a complex MOC approval sheet.
Displayed in the following sections are design comparisons between the current DVC6200 HW2 and legacy HW1 products. These comparisons demonstrate how
the design of Fisher instrument technologies users to efciently transition to newer
Fisher™ FIELDVUE™ products.

Background

In order to continue to increase the usefulness and value of the DVC6200 digital
valve controller, additional features and functions have been implemented within the electronics hardware (HW) and rmware. These changes include a new auto travel calibration button, simplied wiring terminals, and HART 7 device
registration.
MOC: DVC6200 HW1 to HW2
September 2018 / D352319X012

Question & Answer Checklist

Q: Does the proposed modication cause any changes to the piping and
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instrumentation diagram (P&ID)?
A: No.
Q: Does the proposed modication change process chemistry,
technology, or operating and control philosophies?
A: No.
Q: Have the operating and design limits of the proposed modication
changed?
A: No.
Q: Have the codes and standards to which the new equipment has been
designed changed?
A: No.
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Q: Does the proposed modication change the Hazardous Electrical Area
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classication?
A: Yes. The Intrinsic Safety parameters and T-Codes have changed. See
the electrical section in this document for details.
Q: Does the proposed modication change existing or create new
demands for battery back-up or other power supply redundancy or reliability?
A: No.
Q: Does the proposed modication introduce new equipment that needs
to be operated and, has a new operations list been stated?
A: No.
Q: Does the proposed modication introduce new equipment items
that require spare parts, training manuals, maintenance procedures
or training to teach the maintenance department how to maintain them?
A: No.
MOC: DVC6200 HW1 to HW2
September 2018 / D352319X012
Q: Does the proposed modication change the spares for existing pieces
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of equipment?
A: Yes. New spare parts include the terminal box, printed wiring board,
and rear housing.
Q: Does the proposed modication introduce new equipment items that
require periodic predictive maintenance?
A: No.

FIELDVUE DVC6200 HW1 and DVC6200 HW2 Instrument Comparison

There are four elements of the DVC6200 instrument which have changed with this HW2 enhancement:

Terminal Box

Two push buttons have been added to the terminal box to improve ease of use. The “CAL” button allows the user to perform an auto travel calibration routine locally at the valve without the need for additional tools. This button is disabled
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by default from the factory and must be enabled by a HART communicating host.
The other push button, to the right of the “CAL” push button, is labeled with a
padlock symbol. This push button is used during the routine to remove instrument protection (not common). Instrument protection is disabled by default from the factor y.
The “AUX” terminals have been removed from the HW2 construction. In the HW1
construction, the AUX terminals could be congured to initiate an auto calibration routine. With the new “CAL” push button, the AUX terminals became unnecessary. The AUX terminals could alternatively be congured to monitor an open/close
circuit wired to the terminals. If the terminals detected a closed circuit (perhaps triggered by a local switch) then the DVC6200 could communicate an “AUX Input Alert” to a HART communicating host. This feature was seldom used and therefore removed from the instrument.
The “TEST” terminals have been removed from the HW2 construction. These terminals were available to measure the loop current without having to disrupt the LOOP wiring. This feature was seldom used and therefore removed from the instrument. Loop current can be read from the device using any HART host via Universal Command 3.
MOC: DVC6200 HW1 to HW2
September 2018 / D352319X012

Printed Wiring Board

The printed wiring board (PWB) is a matched set with the terminal box. The usability features of the PWB are unchanged.

Rear Housing

The rear housing is also a matched set with the terminal box and printed wiring board. The usability features of the rear housing are unchanged. There has been no change to the method of mounting the DVC6200 HW2 instrument to a control valve actuator.

Firmware

The rmware has been updated to support the new electrical features. Additionally, the DVC6200 instrument is HART 5 and HART 7 registered with
the HART Communication Foundation. This registration resulted in new device
type identication (device type 09 for HART 5 and device type 1309 for HART
7). This requires the latest Device Descriptions (DD) to be installed on a HART
communicating host. The latest DD’s can be obtained from the www.emerson.com or the HART Communication Foundation website
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Component HW2
I/P Converter No change
Pneumatic Relay No change
Printed Wiring Board (PWB) New
Terminal Box New
Cover No change
Module Base No change
Back Housing New
Mounting No change
Firmware New
Table 1. FIELDVUE DVC6200 Instrument Component Codes
MOC: DVC6200 HW1 to HW2
September 2018 / D352319X012
Figure 1. DVC6200 Terminal Box, Rear Housing, and Printed Wiring Board

DVC6200 HW1 to DVC6200 HW2 Transition Design Comparison

Electrical

The Intrinsic Safety parameters are different between HW1 and HW2.
Instrument HW1 HW2 Comment
Table 2. Intrinsic Safety Parameter Changes
Vmax 30 VDC 30 VDC No change
Imax 226 mA 130 mA -96 mA
Ci 5 nF 15 nF +10 nF
Li 0.55 mH 0.55 mH No change
Pi 1.4 W 1.0 W -0.4 W
T5 ≤ 80°C ≤ 80°C No change
T6 ≤ 75°C ≤ 74°C -1°C
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Additionally, the ATEX approval for Explosive Dust Atmospheres (Ex tD) is not
available with the HW2 instrument.

Position Control Capability

No change.

Diagnostics Capability

No change.

Operating Ambient Temperature Limits

No change.

Steady State Air Consumption

No change.
MOC: DVC6200 HW1 to HW2
September 2018 / D352319X012

Maximum Output Capacity

No change.

Connections

The terminals are different between HW1 and HW2.
HW1 HW2
LOOP +/- LOOP +/-
Ground Ground
TALK +/- TALK +/-
AUX +/- --
TEST +/- --
Table 3. Terminal Differences
Available Congurations
All existing constructions are supported with the new HW2 electronics.
Retrotting
Individual components cannot be upgraded from HW1 to HW2. The Terminal
Box, Rear Housing, and PWB are a matched set and must be upgraded as a set. For example, a damaged HW1 terminal box must be replaced with a HW1 terminal box,
not a HW2 terminal box.
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Conclusion

The FIELDVUE DVC6200 digital valve controller continues to be the most reliable digital valve controller in production. The design philosophy allows the user the
exibility to transition from legacy FIELDVUE products to the current DVC6200 instrument, avoiding lengthy MOC approval documents.

Additional Resources

Product Bulletin (D103415X012)
Quick Start Guide (D103556X012)
Instruction Manual (D103605X012)
MOC: DVC6200 HW1 to HW2
September 2018 / D352319X012
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Fisher and FIELDVUE are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, nothing herein is to be construed as a warranty or guarantee, express or implied, regarding the products or services described herein or their use, performance, merchantability or tness for a particular purpose. Individual results may vary. All sales are governed by our terms and conditions, which are available upon request. We reserve
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