Badger Meter M-Series M2000 - Manual (Page 5)

ABOUT THIS MANUAL
Definitions
DD Device Description
HART Highway Addressable Remote Transducer
HOST Host System, typically the master (i e handheld device)
PV Primary Variable
SV Secondary Variable
TV Tertiary Variable
FV Fourth Variable
Scope
This document discusses the supported features of HART and how these features are related to the M2000 This document
also discusses special considerations and the type of data that is accessible over HART This document is intended for readers
who have a general understanding of the HART protocol For further information regarding the HART protocol please refer to
www hartcomm org
The M2000 HART daughterboard supports Universal Command Revision 7
INTRODUCTION
HART protocol provides the means for sending and receiving digital information across analog wires HART is a bi-directional
communication protocol that provides data access between intelligent field instruments (like the M2000) and host systems
(like the Emerson Field Communicator) HART technology is a master/slave protocol, which means that a field device only
speaks when spoken to by a master The M2000 operates as a slave device In order to connect with the M2000 using the HART
protocol, the HART daughterboard is required As an accessory module to the M-Series M2000, the HART daughterboard
allows access to many of the M2000 measurements and configuration data using the analog wires In addition, the HART
daughterboard allows for real-time control and monitoring of the M2000
The Device Description (DD) files for the M2000 are located on www.hartcomm.org under Product Catalog > All Products
> M2000 These files describe the supported features and functions of the M2000 with respect to HART The DD includes
details of menus and graphic display features to be used by host applications in order to access all parameters and data in the
M2000 These files describe what parameters are accessible and should be installed in host systems
In order to provide access to the M2000 over HART, the daughterboard converts HART protocol commands to MODBUS™ RTU
commands
M2000
DSP
HART
Daughter
Board
Modbus RTU HART
INTELLIGENT
HOST
Figure 1: HART-to-MODBUS RTU Commands
Installation & Operation Manual
Page 5 December 2012