Introduction; Product Overview; Purpose Of This Document; Abbreviations And Definitions - Emerson Fisher FIELDVUE DVC5000 Instruction Manual Supplement

DVC5000 Digital Valve Controller
May 2018

Introduction

Product Overview

The FIELDVUE DVC5000 digital valve controller is designed to control the pneumatic actuator of a process control
valve. It receives a current signal from a host and uses instrument air supply to create a metered pressure output signal
to the pneumatic actuator. Movement of the actuator as it positions the process control valve is measured by the
DVC5000 travel sensor as its primary feedback. The name plate is located on the side of the DVC5000 master module
assembly and indicates the model name, individual product serial number, and any applicable third party approvals.

Purpose of this document

This specification is designed to be a technical reference for HART capable host application developers, system
integrators and knowledgeable end-users. It also provides functional specifications (e.g., commands, enumerations
and performance requirements) used during field device development, maintenance and testing. This document
assumes the reader is familiar with HART Protocol requirements and terminology. Additional product information is
available in the DVC5000 product literature, available from your

Abbreviations and definitions

AR Alert Record
Variables which represent nonvolatile values of manufacturing­initialized data or user­specified
Configuration
configuration information. These variables cannot be enumerated via Command 54 and as such
Variables
stand on their own with no associated units or range information.
Measured variables that are exposed to HART and can be enumerated using Command 54.
Device Variable Generally there are variables whose ID is in the range of 0 to 10 and are associated with units
codes, status, and range values.
Enumeration A pre-defined set of values or text.
MV Measured Variable, a physical input to the instrument.
Named Variable – a logical point inside the device, hard­mapped to a given MV as the source of
NV
NV data.
A term that applies to diagnostic data packets. It is defined as a collection of periodically sampled
Point
variables captured at a single instant in time. It does not include the "Monitor" point.
Byte An 8­bit unsigned integer.
Word A 16­bit unsigned integer.
Float Refers to the IEEE 754 floating point format.
A special form of characters defined by HART in which 6­bit ASCII characters are packed into byte
Packed ASCII
data.
Standard Span A proprietary 16­bit integer format for numerical values used by some of this device's Device
Format Specific commands.
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Instruction Manual Supplement
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