Badger Meter M2000 User Manual

0 (0)

M-Series® M2000

HART® Bi-Directional Communication Protocol Data Access

IOM-191-02-EN (December 2012)

53400-191 Rev. 2

Installation & Operation Manual

M-Series® M2000 HART® Bi-Directional Communication Protocol Data Access

Page ii December 2012

Installation & Operation Manual

CONTENTS

ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Installing the Daughterboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

M2000 AND HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Device Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Dynamic Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Device Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Meter Status Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Universal Command #0 – Read Unique Identifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Universal Command #9 – Read Device Variables with Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Universal Command #48 – Read Additional Device Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

ADDITIONAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Fixed Current Mode (Multi-Drop) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Command Action Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Empty Pipe Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Analog Output Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

DATA MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

DEVICE DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

COMPLIANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Page iii December 2012

M-Series® M2000 HART® Bi-Directional Communication Protocol Data Access

Page iv December 2012

M2000

DSP

HART

Daughter

Board

Modbus RTU

HART

INTELLIGENT

HOST

Installation & Operation Manual

ABOUT THIS MANUAL

Denitions

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.

Figure 1: HART-to-MODBUS RTU Commands

Page 5 December 2012

M-Series® M2000 HART® Bi-Directional Communication Protocol Data Access

INSTALLATION

Prerequisites

Installing a HART daughterboard into an M2000 has two requirements:

• Firmware v1.10 or later.

• M2000 PCB serial number must indicate that the board was manufactured week 19 of Year 2011 or later.

The PCB serial number is listed in the menus at Main Menu > Info/Help > Serial Number.

The PCB serial number is of the following format: WWYYSSSS, where WW = Week, YY = Year.

A label on the main board also indicates the week and year.

Figure 2: Main Board Label

Installing the Daughterboard

The daughterboard connects to the 11-pin connector labeled as COMMUNICATION on the main amplifier.

Figure 3: Daughterboard Connection

Page 6 December 2012

Installation & Operation Manual

Follow these steps to install the daughterboard:

1. Prior to installing the daughterboard, verify or congure the M2000 Communication Port B. Access the port settings at Main Menu > Communications > Port B Settings.

Parameter Value Comments

Port Address 001 —

Extended Port Address — Not applicable for HART

Baud Rate 38400 HART Daughterboard auto-bauds, all baud rates supported

Data Bits 8 —

Parity EVEN —

Stop Bits 1 —

2. Verify or congure the analog output range at 4…20 mA. Access the analog output range at Main Menu > Inputs/Outputs > Analog Output Range.

3. Power o the M2000.

DISCONNECT THE INPUT POWER BEFORE ACCESSING THE EQUIPMENT.

This step is important for the M2000 to properly recognize the HART daughterboard and fulfill HART compliance.

4. Prior to inserting the daughterboard, install the foam insulation pad as shown below. Be sure to align the groove with the two screws attaching the detector or wall mount bracket to the enclosure. The primary purpose of this pad is to ensure the daughterboard is insulated from the enclosure wall. It is important to install this pad flush with the top of the enclosure wall.

Apply insulation pad

flush with the top of

the housing.

Figure 4: Installing Foam Insulation Pad

5. Insert the daughterboard into the 11-pin connector.

6. Use the following information to make appropriate wiring of analog wires to the 4-pin customer connector.

Pin Number Pin Description Comments

41 Analog Ground — 42 Analog Signal Requires minimum loop impedance of 230  for communication 43 Analog Shield Only for shielded wires 44 Chassis Jumper Connect to screw in corner

7. Power on the M2000.

8. Allow time for the daughterboard to properly power up and be recognized by the M2000 before navigating the menus. This time is typically 5 seconds. If the HART daughterboard is not recognized, then the M2000 should be power cycled.

9. Verify recognition of the HART daughterboard. Navigate to Main Menu > Info > Help. The Daughterboard Info eld indicates the Daughterboard Type is HART.

Page 7 December 2012

M-Series® M2000 HART® Bi-Directional Communication Protocol Data Access

M2000 AND HART

HART protocol has three categories of commands: Universal, Device-Specific and Common Practice. The M2000 HART daughterboard supports only some Universal commands and Device-Specific commands. Universal commands supported include:

Command

Number

0 Read Unique Identifier 1 Read Primary Variable 2 Read Current and Percent of Range 3 Read Current and Four Dynamic Variables 6 Write Polling Address 7 Read Loop Configuration 8 Read Dynamic Variable Class

9 Read Device Variables with Status 11 Read Unique Identifier Associated with Tag 12 Read Message 13 Read Tag, Descriptor, Date 14 Read PV Sensor Information 15 Read Output Information 16 Read Final Assembly Number 17 Write Message 18 Write Tag, Descriptor, Date 19 Write Final Assembly Number 20 Read Long Tag 21 Read Unique Identifier Associated with Long Tag 22 Write Long Tag 38 Reset Configuration Changed Flag 48 Read Additional Device Status

Command Description

Typically, these commands are used by advanced users of HART or the usage of these commands is embedded within the DD files. With the use of the HART universal commands, device variables and dynamic variables are accessible. Device and dynamic variables are defined later. For further understanding of the format and function of the HART Universal Commands please refer to HART protocol documentation.

Device-specific commands are mainly for accessing many of the M2000 data parameters, including configuration, identity and diagnostic parameters. Much of the data accessible with device specific commands is accessed through the use of the DD files. The DD files provide all the necessary information for data management within the M2000. Installing and using the DD files in the applications host is the most convenient method for communicating to the M2000 over HART.

Using both the HART universal commands and device-specific commands allows for complete access to the M2000 parameters, including the ability to read or write M2000 parameters. The Data Management section defines the M2000 data and the associated HART command.

Page 8 December 2012

+ 16 hidden pages