AMS 375 Field Communicator User's Manual Manuals & Guides

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USER’S

MANUAL

USER’S MANUAL

February 2009

375 FIELD COMMUNICATOR

NOTICE

Read this User’s Manual before working with the 375 Field Communicator. For personal and system safety, and for optimum product performance, thoroughly understand the contents before using or servicing this product.

For equipment service needs, contact the nearest product representative.

AMS Suite is a registered trademark of Emerson Electric Co. Rosemount and SMART FAMILY are registered trademarks of Rosemount Inc. Windows is a registered trademark of Microsoft Corporation in the United States and other countries. IrDA is a registered trademark of the Infrared Data Association. F

OUNDATION is a trademark of the Fieldbus Foundation.

HART is a registered trademark of the HART Communication Foundation. WirelessHART is a trademark of the HART Communication Foundation. Hitachi is a registered trademark of Hitachi America, Ltd. All other marks are the property of their respective owners.

US and foreign patent numbers are pending.

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USER’S MANUAL

February 2009

375 FIELD COMMUNICATOR

SECTION 1 Introduction

Using this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

SECTION 2 Learning the Basics

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Product Overview and Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

375 Field Communicator Components . . . . . . . . . . . . . . . . . . . . . . . 2-2

Working in an Intrinsically Safe (IS) Area . . . . . . . . . . . . . . . . . . . . . 2-3

Battery and Power Supply/Charger Overview . . . . . . . . . . . . . . . . . . 2-4

Guidelines and Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Check the Charge Remaining. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Charge the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Maintaining the Battery Life and Performance . . . . . . . . . . . . . . . . . 2-7

Installing the System Card and the Battery . . . . . . . . . . . . . . . . . . . . 2-8

Removing the Battery and the System Card . . . . . . . . . . . . . . . . . . . 2-9

Starting Up and Shutting Down. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Starting the 375 Field Communicator . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Entering Stand-By. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Shutting Down the 375 Field Communicator. . . . . . . . . . . . . . . . . . 2-10

Basic Features and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Using the Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Using the Touch Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

The 375 Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Starting the HART Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Starting the Fieldbus Application. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Running the Settings Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Communicating with a PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Using ScratchPad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Managing Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Types of Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

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TOC-2

Free Memory on a System Card . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Running a Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Calibrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Waste Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Hazardous Substances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Table of Contents

SECTION 3 HART Functionality

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Basic Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Using a Fast Key Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Starting the HART Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Working Offline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Creating New Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Opening Saved Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Working Online. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Connecting to a HART Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Displaying the Online Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Saving an Online Device Configuration . . . . . . . . . . . . . . . . . . . . . 3-12

Displaying the Device Setup Submenu . . . . . . . . . . . . . . . . . . . . . 3-12

Displaying Graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Using Hot Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Setting up Hot Key Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Executing a Hot Key Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Removing a Hot Key Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Removing all Hot Key Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Configuring the HART Applicatio n. . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Changing the HART Polling Option . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Changing Ignored Status Messages . . . . . . . . . . . . . . . . . . . . . . . 3-19

Changing the Menu Title . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Storage Cleanup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Viewing Available Device Descriptions . . . . . . . . . . . . . . . . . . . . . 3-20

Simulating an Online Connection to a HART Device . . . . . . . . . . . 3-21

Running HART Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

DC Voltage Measurement (HART Terminals) . . . . . . . . . . . . . . . . 3-22

Disconnecting from a HART Device. . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Table of Contents

TOC-3

SECTION 4 Fieldbus Functionality

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Basic Features and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Link Active Scheduler (LAS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

LAS Hierarchy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Device Interoperability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

ST_REV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Starting the Fieldbus Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Working Online. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Connecting to a Fieldbus Segment. . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Displaying the Live Device List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Displaying the Block List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Displaying a device menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Working with Device Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Displaying Graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Configuring the Fieldbus Application. . . . . . . . . . . . . . . . . . . . . . . . 4-21

Changing the Fieldbus Polling Addresses . . . . . . . . . . . . . . . . . . . 4-21

Changing the Slot Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Viewing Available Device Descriptions . . . . . . . . . . . . . . . . . . . . . . 4-22

Running Fieldbus Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

DC Voltage and Noise Level Measurement . . . . . . . . . . . . . . . . . . 4-23

Signal Level Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Disconnecting from a Fieldbus Device. . . . . . . . . . . . . . . . . . . . . . . 4-24

SECTION 5 Troubleshooting

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Troubleshooting Suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Error and Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Required Information for Technical Assistance . . . . . . . . . . . . . . . 5-10

APPENDIX A Reference Information

Processor and Memory Specifications. . . . . . . . . . . . . . . . . . . . . . . .A-1

Microprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Connection Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2

TOC-4

Power Supply/Charger Specifications. . . . . . . . . . . . . . . . . . . . . . . . A-3

Battery Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Temperature Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Order Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Spare Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

Table of Contents

APPENDIX B Product Certifications

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Approved Manufacturing Locations. . . . . . . . . . . . . . . . . . . . . . . . . . B-1

European Directive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Hazardous Locations Certifications (KL option only) . . . . . . . . . . . B-2

International Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

North American Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

European Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Power Supply/Charger Certification. . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Label Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Approval Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

APPENDIX C Graphics Information

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Screen Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Graphics Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10

Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-i

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1

USER’S MANUAL

February 2009

SECTION 1INTRODUCTION

375 FIELD COMMUNICATOR

USING THIS MANUAL

The sections in this manual provide the following information on the 375 Field Communicator.

Section 2: Learning the Basics contains information on settings, types of storage, IrDA readers, ScratchPad, maintenance, and managing files and storage.

Section 3: HART Functionality contains information on starting and configuring the HART establishing communication with connected HART devices, and viewing the menus.

Section 4: Fieldbus Functionality contains information on starting and configuring the Fieldbus Application, establishing communication with connected fieldbus devices, and viewing the menus.

Section 5: Troubleshooting provides solutions to the most common 375 Field Communicator operating problems.

Appendix A: Reference Information provides physical, functional, and performance specifications.

Appendix B: Product Certifications contains Hazardous Location Certifications, European directive information, and approval drawings.

Appendix C: Graphics Information contains an overview of the Graphics functionality and screen options in the 375 Field Communicator.

communication, card

Application,

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1-2

Introduction

USER’S MANUAL

February 2009

375 FIELD COMMUNICATOR

SECTION 2LEARNING THE BASICS

OVERVIEW This section provides instructions on basic features and

functions of the 375 Field Communicator. It also provides information on starting, entering stand-by, shutting down, configuring, and maintaining the 375 Field Communicator. The functionality described in this section is based on system software version 2.5.

SAFETY MESSAGES

Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operation. Information that raises potential safety issues is indicated by a warning symbol ( ). Refer to the following safety messages before performing an operation preceded by this symbol. See the Troubleshooting section for more warning messages.

IMPORTANT NOTICE

Ensure the battery and the 375 Field Communicator are properly aligned during assembly to prevent damage to the connector pins.

IMPORTANT NOTICE

Do not pull up on the battery because this can damage the connector pins. The System Card must be inserted or removed by applying gentle pressure in line with the axis of the System Card and the System Port. Do not pull up or press down on the System Card because this can damage the card or the communicator and void the warranty.

WARNING

A Re-Flash operation reinstalls the firmware and software from the System Card. This should only be performed under the direction of Technical Support personnel.

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2-2

Learning the Basics

WARNING

Using Windows Explorer and a card reader to transfer files between the System Card and a PC can corrupt the System Card. This operation should only be performed under the direction of Technical Support personnel.

WARNING

The touch screen should be contacted by blunt items only, preferably the stylus includ ed with the 375 Field Communicator. Using sharp instruments, such as screwdrivers, can cause failure of the touch-screen display and void the warranty. Repair of the touch screen requires repl acement of the entire 375 Field Communicator display assembly, which is possible only at an authorized service center.

PRODUCT OVERVIEW AND PRECAUTIONS

375 Field Communicator Components

The 375 Field Communicator supports HART and FOUNDATION fieldbus devices, letting you configure or troubleshoot in the field. When using the 375 Field Communicator, follow all standards and procedures applicable to the location. Failure to comply may result in equipment damage and/or personal injury. Be sure to understand and comply with the following items:

• The 375 Field Communicator includes an FSTN type LCD with touch-screen display, a Nickel-Metal Hydride (NiMH) Battery Pack or Lithium Ion (Li-Ion) Power Module, an SH3 processor, memory components, and integral communication and measurement circuitry.

• Three terminals for the lead set are on the top of the 375 Field Communicator. The lead set and terminals let you connect the 375 Field Communicator to a device. Each red terminal is a positive connection for its protocol, while the black terminal is a common terminal shared by both protocols. An access door ensures only one pair of terminals is exposed at any one time. Several markings indicate which pair of terminals is for which protocol.

• The infrared port and card reader let the 375 Field Communicator or its System Card interface with a PC.

• Use the keypad or touch screen to enter data into the 375 Field Communicator.

Learning the Basics

2-3

• An Expansion Module, labeled Expansion Module, is a removable memory card that snaps into the Expansion Port.

• Only the Expansion Module or Expansion Port Plug should be inserted into the Expansion Port. System Cards/Secure Digital cards or other objects must not be put into the Expansion Port. Failure to comply will void the IS approval and the warranty.

• The System Card used in the System Port must be supplied by the 375 Field Communicator manufacturer. Failure to comply will void the IS approval and the warranty.

Working in an Intrinsically Safe (IS) Area

• An IS-approved 375 Field Communicator can be used in Zone 0 (FM and CSA only), Zone 1, or Zone 2, Division 1 and Division 2 locations (KL option only).

• An IS-approved 375 Field Communicator may be connected to loops or segments that are attached to equipment located in Zone 0, Zone 1, Zone 2, Zone 20, Zone 21, Zone 22, Division 1 and Division 2 (KL option only).

• The battery can be installed or removed in an Intrinsically Safe area; however, it cannot be charged.

• The Expansion Module can be removed or installed in a hazardous area.

• The Expansion Module can be installed in an Intrinsically Safe area while the 375 Field Communicator is still running.

2-4

Learning the Basics

BATTERY AND POWER SUPPLY/ CHARGER OVERVIEW

Guidelines and Precautions

The 375 Field Communicator supports two types of batteries: the NiMH Battery Pack and the Li-Ion Power Module. The NiMH Battery Pack has a black, 4-pin power supply/charger connector and the Li-Ion Power Module has a green, 6-pin connector. See Figure 2-3 on page 2-11 for the location of the connector. The label on the back of the battery also identifies the type.

NOTE

The term “battery” is used to describe functionality common to both types of supported batteries. Any differences are noted.

Before using the battery or power supply/charger (00375-0003-0005), understand and follow the guidelines below:

• When transporting a Li-Ion Power Module, follow all applicable regulations.

• Use the power supply/charger with the 375 Field Communicator only. Use only the supported power supply/charger to charge the battery. Failure to comply may permanently damage your 375 Field Communicator and will void the IS approval and the warranty.

• Protect the battery and power supply/charger from moisture.

• Do not cover the battery or power supply/charger, subject it to direct sunlight, or place it on or next to heat-sensitive materials.

• Do not open or modify the battery or power supply/charger. There are no user-serviceable components or safety elements inside. Opening or modifying them will void the warranty.

Learning the Basics

2-5

Check the Charge Remaining

Charge the Battery

Use the Power Status option in the Settings menu or the lights on the battery to view the remaining charge. See “Power Status” on page 2-18 for details.

To check the remaining charge from the lights on the battery:

1. Remove the battery if it is connected to the 375 Field Communicator. See “Removing the Battery and the System Card” on page 2-9 for the procedure.

2. Turn the battery over, and press the charge indicator button located on the lower left side. The lights illuminate based on the amount of charge remaining. Each light represents 20 percent of the charge remaining. The battery is fully charged when all of the lights are illuminated.

CAUTION

The previous 4-pin power supply/charger is incompatible with the 6-pin Li-Ion Power Module.

Prior to first portable use, fully charge the battery. The battery can be charged separately or while attached to the 375 Field Communicator. The 375 is fully operable when the battery is recharging. The power supply/charger can remain connected after the battery is fully charged. An overcharge condition will not occur.

The power supply/charger is compatible with both types of batteries. However, the NiMH Adapter Cable must be used with the power supply/charger to charge the NiMH Battery Pack. See Figure 2-1. The connector on the power supply/charger is green to match the appropriate connector on the Li-Ion Power Module or the NiMH Adapter Cable.

The lights on the po w e r su pp l y /charger are amber when charging, amber and green when the charge level is very low, green when charging completes, and red when charging cannot occur.

2-6 Figure 2-1. NiMH Adapter Cable used to charge the NiMH Battery Pack

NiMH Adapter Cable

Power supply/charger

Lights

Learning the Basics

Green connector on the power supply/charger

NOTE

Do not charge the battery in hazardous areas.

To charge the battery:

1. Plug the power supply/charg er into a power outlet.

2. Ensure the connectors match before connecting the power supply/charger to the battery.

3. Plug the power supply/charg er connector into the battery. The battery is fully charged when the light on the power supply/charger is green.

Learning the Basics

2-7

Maintaining the Battery Life and Performance

T o maintain the battery life and performance, understand and follow the guidelines below:

Li-Ion Power Modules

• Recharge the Power Module frequently, preferably after each use or at night. It is recommended to limit the number of full discharge and recharge cycles.

• Frequent use at high temperatures can reduce performance.

• Use a dry location at or near room temperature when storing the Power Module for an extended time. Prolonged storage at higher temperatures can reduce performance.

• Ensure the remaining charge level is at or near mid-capacity when storing for an extended time. The remaining charge will slowly drain during storage. Periodically charge the Power Module to ensure the remaining charge does not drain to low levels.

NiMH Battery Packs

• Recharge the Battery Pack when it is nearly discharged. NiMH Battery Packs benefit from full discharge and recharge cycles.

• Use a dry, cool location when storing the Battery Pack for an extended time.

• Ensure the remaining charge level is nearly full when storing the Battery Pack. The remaining charge will slowly drain during storage. Periodically charge the Battery Pack to ensure the remaining charge does not drain to low levels.

2-8

Learning the Basics

INSTALLING THE SYSTEM CARD AND THE BATTERY

1. Place the 375 Field Communicator face down on a level, secure surface.

2. Lock the stand into the hanger position. (To pivot past the stand position, squeeze the stand together near the hinge, Figure 2-2.)

Figure 2-2. Back side of the 375 Field Communicator

Main unit label

Battery retaining screws

Battery

3. With the battery removed, slide the System Card (labeled System Card), into the System Port until it is firmly in place.

4. With the 375 Field Communicator still face down, ensure the tops of the two battery retaining screws are flush with the top of the 375. Install the battery by aligning the sides of the battery and the 375, and carefully sliding it forward until it is secure.

5. Carefully hand tighten the two battery retaining screws to secure the battery. (Do not over tighten,

0.5Nm maximum torque load.) The tops of the screws should be close to flush with the stand groove.

System Card

Stand assembly

IS label (KL Option)

CAUTION

If the battery and 375 are not properly aligned, the connector pins can be damaged.

Learning the Basics

2-9

REMOVING THE BATTERY AND THE SYSTEM CARD

STARTING UP AND SHUTTING DOWN

Starting the 375 Field Communicator

To remove the battery and System Card:

1. Place the 375 Field Communicator face down on a level, secure surface.

2. Loosen the battery retaining screws until the top of each screw is flush with the top of the 375 Field Communicator.

3. Slide the battery off the 375. Do not pull the battery up because this can damage the connector pins.

4. Grasp the System Card and slide it straight out of the

375. Do not pull the System Card up because this can damage the card or the System Port.

Prior to using the 375 Field Communicator without the power supply/charger, fully charge the battery. See “Battery and Power Supply/ Charger Overview” on page 2-4 for details on charging the battery.

Before operating the 375 Field Communicator, ensure:

• The 375 Field Communicator is not damaged.

• The battery is fully seated.

• All screws are sufficiently tightened.

• An Expansion Module or Expansion Port Plug is in place.

• The Communication T erminal recess is free of dirt and debris.

Press and hold the On/Off key until the multifunction LED flashes (approximately two seconds). See Figure 2-3 for the location of the On/Off key.

During start-up, the 375 Field Communicator automatically checks for any software upgrades available on the System Card. upgrade is required.

After starting the 375 Field Communicator, you can do the following from the 375 Main Menu:

• Launch the HART or F Applications (if licensed)

• Configure and view settings

• Enter Listen For PC mode

• Launch ScratchPad

You are notified if any

OUNDATION Fieldbus

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Learning the Basics

Entering Stand- By

Shutting Down the 375 Field Communicator

The 375 Field Communicator can be put into stand-by, which turns off the display and certain areas within the 375 Field Communicator. Use this option to save power or to reduce the boot-up time if you are using the 375 Field Communicator intermittently.

You can put the 375 Field Communicator in stand-by when the HART Application or the Fieldbus Application is running. If you are working online with a device when stand-by is entered, the application main menu is displayed when the 375 Field Communicator returns from stand-by. Otherwise, the 375 Field Communicator displays the last open screen.

To enter stand-by , press the On/Off key. From the Power Switch dialog box, tap Stand by and tap OK or press the Enter key. Tap Cancel to close the dialog box and return to the application. The multifunction LED will slowly flash a green light when the 375 Field Communicator is in stand-by. To leave stand-by, press the On/Off key.

The 375 Field Communicator also enters stand-by if the stand-by timer has expired. See “Power Status” on page 2-18 for more information.

To shut down the 375 Field Communica tor, press the On/Off key. From the Power Switch dialog box, tap Shut down and tap OK or press the Enter key. Tap Cancel to close the dialog box and return to the application.

You can also shut down the 375 Field Communicator by simultaneously pressing the Backlight Adjustment key and the Function key until the display turns off. The shut down is accomplished in the hardware (similar to removing the power to a PC using a switch). This is not the recommended way of shutting off the 375 Field Communicator.

The 375 Field Communicator shuts down if the auto-off timer has expired. See “Power Status” on page 2-18 for more information.

Learning the Basics

BASIC FEATURES AND FUNCTIONS

Figure 2-3. 375 Field Communicator diagram

IrDA Interface (top)

Touch-Screen

Display

HART and F

Communication Terminals (top)

2-11

OUNDATION fieldbus

Stylus (back)

Expansion Port (side)

Navigation keys

(four arrow keys)

Tab key

Battery (back) and

System Card

(internal)

Alphanumeric

keypad

On/Off key

Multifunction

LED

Enter key Function key

(for multiple-key combination functionality)

Power supply/charger connector (side) on the battery (colored green for Li-Ion Power Modules or black for NiMH Battery Packs)

Backlight Adjustment key

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Learning the Basics

Using the Keypad

The 375 Field Communicator keypad and touch screen have nearly the same functionality.

On/Off key

The On/Off key ( ) is used to power on and off the 375 Field Communicator or to put it in stand-by . If the On/Off key is pressed when there is unsent data or a device method is running, a warning message appears. Tap OK to have the 375 Field Communicator enter stand-by or shut down, or tap Cancel to return to the previous screen.

The On/Off key is disabled when the 375 Field Communicator is in Listen For PC mode or when ScratchPad is open.

Arrow Navigation keys

Four arrow navigation keys let you move through the menus in the applications. Press the right arrow key ( ) to select menu items and to move into the menu.

Enter key

The Enter key ( ) lets you select the focused (highlighted) item or complete an editing action. For example, if you push the Enter key when the Cancel button on a screen is in focus, you will cancel out of that screen.

The Enter key does not let you launch menu items. Use the arrow navigation keys or the stylus to select and launch menu items.

Tab key

The Tab key ( ) lets you move between selectable controls.

Learning the Basics

Alphanumeric keypad

The alphanumeric keypad lets you enter letters, digits, and other characters, such as punctuation marks. To enter text, press the desired keypad button in quick repetition to scroll through the options to achieve the appropriate letter or number. For example, to type the letter Z, press the 9 key quickly four times; see Figure 2-4.

Figure 2-4. Keypad button functionality example

Backlight Adjustment key

The Backlight Adjustment key ( ) lets you adjust the intensity of the display. There are four different settings. The intensity impacts the charge in the battery. Expect a shorter charge life for higher intensities; see “Backlight” on page 2-16 for the settings.

Function key

The Function key ( ) lets you enable alternate functionality on select keys. The grey characters on the keys indicate the alternate functionality. When the Function key is enabled, the orange Multifunction LED light appears and an indication button can be found on the Soft Input Panel (SIP). Press the Function key again to disable the functionality.

The alternate function on the Tab and alphanumeric 5 key (insert) will be activated in future releases of the 375 Field Communicator software.

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2-14

Multifunction LED

The Multifunction LED lets you recognize when the 375 Field Communicator is in various states; see Table 2-1.

Table 2-1. Multifunction LED

Multifunction LED Meaning

Solid green The 375 Field Communicator is on. Flashing green The 375 Field Communicator is in

Solid green and orange The Function key is enabled. Blinks green and orange The On/Off key has been held down

Learning the Basics

power saving mode (stand-by). The display is off.

long enough for power up.

Using the Touch Screen

The touch-screen display lets you select and enter text by touching the screen. T ap the screen once to select a menu item or to activate a control. Double-tap to move into the menu.

NOTE

All instructions in this manual are written for the touch screen.

The touch screen should be contacted by blunt items only, preferably the stylus included with the 375 Field Communicator. Using sharp instruments, such as screwdrivers, can cause failure of the touch-screen display. Rep air of the touch screen requires replacement of the entire 375 Field Communicator display assembly, which is possible only at an authorized service center.

Use the back arrow icon ( ) to return to the previous menu. Use the terminate icon ( ) in the upper right corner of the touch screen to end the application.

Use the Soft Input Panel (SIP) keyboard

The SIP keyboard allows for alphanumeric input using the touch screen. The SIP keyboard detects when you need to enter characters and appears automatically as required.

Learning the Basics

2-15

THE 375 MAIN MENU

Figure 2-5. 375 Main Menu example

Starting the HART Application

Starting the Fieldbus Application

The 375 Main Menu lets you run the HART and the

OUNDATION Fieldbus Applications, view the Settings

F menu, communicate with a PC, and launch ScratchPad.

From the 375 Main Menu, double-tap HART Application to run the HART Application. On startup, the HART Application automatically polls for devices. See “Section 3 HART Functionality” for more information.

From the 375 Main Menu, double-tap FOUNDATION Fieldbus Application to run the Fieldbus Application. See “Section 4 Fieldbus Functionality” for more information.

Running the Settings Menu

From the 375 Main Menu, double-tap Settings to view the Settings menu. This menu lets you set preferences for the 375 Field Communicator and view system properties and license information. The following section describes the options in the Settings menu.

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Learning the Basics

About 375

About 375 lets you view the software revisions of your 375 Field Communicator. If you need to call Technical Support personnel, have the system software version, Communication and Diagnostic Circuitry (CDC) version, and the operating system version available.

Launching RE-FLASH re-installs the firmware and software from the System Card. The 375 Field Communicator must be running on external power when the RE-FLASH operation is performed. During the operation, the stand-by and auto-off timers are disabled. This operation should only be performed under the direction of Technical Support personnel.

Launching RE-IMAGE re-installs the operating system, system software, and applications on your 375 Field Communicator. The 375 Field Communicator must be running on external power when the RE-IMAGE operation is performed. During the operation, the stand-by and auto-off timers are disabled. This operation should only be performed under the direction of Technical Support pe rsonnel.

Tap OK to return to the Settings menu.

Backlight

The Backlight setting lets you adjust the intensity of the screen. To adjust the backlig ht, drag the slider left to right.

The Backlight setting also lets you set timers to automatically turn off the backlight after a specified period of inactivity. These timers apply when the 375 is running on or off external power. Turning off the backlight after periods of inactivity will save power. To enable a timer, tap a drop-down menu and select the appropriate time interval.

When you have selected the appropriate Backlight settings, tap OK to retain this setting for this session only, SET DEFAULT to retain this setting upon start up, or CANCEL to exit without changes.

Learning the Basics

2-17

Clock

The Clock setting lets you set the date and time on the 375 Field Communicator. Configure the date by using the drop-down menu. T o configure the time, highlight the appropriate time field and use the arrows to scroll through values until you find the correct time. Select OK to save the changes and to close the window, or

CANCEL to exit without changes.

Contrast

The Contrast setting lets you adjust the lightest and darkest areas on the screen.

To adjust the contrast, drag the slider to the left or right. The window automatically adjusts the contrast as you move the slider. When you find an appropriate contrast setting, tap OK to retain this setting for this session only,

SET DEFAULT to retain this setting upon start up, or CANCEL to exit without changes.

NOTE

Temperature can affect contrast.

License

The License setting lets you view the enabled licenses on the System Card. The HART Application license is standard in every 375 Field Communicator. Other licenses available include the F Easy Upgrade, and the Graphics options. Unlicensed features cannot be accessed.

The License screen also displays the System Card Serial Number (SN) and the unit name of the 375 Field Communicator. A unit name can be assigned by using the Easy Upgrade Programming Utility. See the Programming Utility online Help for more details. Tap OK to return to the Settings menu.

OUNDATION fieldbus,

2-18

Learning the Basics

Memory

The Memory setting lets you view available free space in the System Card, Internal Flash, RAM, and Expansion Module (if installed).

Power Status

The Power Status setting lets you specify power management options for the 375 Field Communicator. These settings apply only when the 375 Field Communicator is running without the power supply/charger connected. To specify values for the stand-by or auto-off timers, select the time intervals from the drop-down menus. After the specified periods of inactivity, the stand-by timer puts the 375 Field Communicator in stand-by, or the auto-off timer turns off the 375 Field Communicator. If set to short intervals, these timers will save power.

The Maximize Power Savings option conserves additional power by letting the 375 Field Communicator enter stand-by or shut down when communicating with a device. To enable Maximize Power Savings, tap the checkbox and a checkmark appears. If this option is disabled, the 375 Field Communicator will not enter stand-by or shut down when communicating with a device.

The Maximize Power Savings option applies only when the 375 Field Communicator is communicating with a device. If it is not communicating with a device, the 375 Field Communicator enters stand-by or shuts down when the timer expires, independent of the Maximize Power Savings option. This can occur when viewing certain menus, such as the Settings menu or an Application main menu.

When you determine the appropriate power management settings, tap OK to apply the settings for this session only, SET DEFAULT to retain the settings upon start up, or CANCEL to exit without changes.

Learning the Basics

2-19

Retrain the Battery

The Retrain the Battery setting lets you discharge the battery so it can be recharged to its full capacity. Use this option if you notice a decrease in charge life. This feature is more effective with the NiMH Battery Pack than the Li-Ion Power Module due to the different battery technologies. Ensure the power supply/charger is not connected when this operation is performed.

During the operation, the backlight is set to its brightest setting to quickly discharge the battery. The backlight, stand-by, and auto-off timers are disabled.

If you tap CANCEL, the battery stops discharging and the backlight, stand-by, and auto-off timers are re-enabled. The backlight setting is also restored.

After the battery is discharged, make sure it is fully recharged before using it without the power supply/charger. You can use the 375 Field Communicator while the battery is recharging.

To retrain the battery:

1. Disconnect the power supply/charge r, if it is connected to the 375 Field Communicator.

2. Double-tap Retrain The Battery from the Settings menu.

3. Wait until the 375 Field Communicator shuts down. It may take up to several hours to discharge the battery, depending on the charge remaining when the operation began.

4. Connect the power supply/charger to th e 375 Field Communicator and fully charge the battery.

Touch Screen Alignment

The Touch Screen Alignment setting lets you calibrate the touch screen with the display. Tap the cross hairs firmly and accurately at each location on the window. The target continues to move until the touch screen is aligned. Touch scre en alignment is retained upon start up.

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Learning the Basics

Event Capture

The Event Capture setting lets you create an event capture file (.rec), which is a log of communication, input, and screen output that occurs between the 375 Field Communicator and a device (HART only). When working with Technical Support personnel, you may be asked to create an event capture file to help troubleshoot issues that cannot be isolated or resolved by normal means. The event capture file can then be transferred to your PC and sent to Technical Support personnel for review.

Tap the desired radio button to activate the event capture feature. The radio button is highlighted black when selected. To delete an event capture, tap the

DELETE EVENT FILE button.

NOTE

While event capture is enabled, device warning messages do not appear.

To create and send an event capture file to Technical Support personnel:

1. Enable event captures and tap OK.

2. Start the HART Application.

3. Enter a file name for the event capture file and tap OK. The file is saved to a default location.

4. Perform the requested operations to capture the data.

5. Use the Easy Upgrade Programming Utility to transfer the file from your 375 Field Communicator to your PC. See the Easy Upgrade Programming Utility online Help for details.

6. Send the event capture file to Technical Support personnel.

Exit to 375 Main Menu

Double-tap Exit to 375 Main Menu if you want to return to the 375 Main Menu.

Learning the Basics

2-21

Communicating with a PC

IrDA

The 375 Field Communicator can communicate with PCs using infrared technology. IrDA is a PC interface supported for the transfer of device descriptions, software updates, configurations, event captures, Application licenses, and ScratchPad files.

IrDA communication can either be built into the PC, such as a laptop, or provided through an adapter such as a USB to IrDA adapter. Refer to your IrDA manual for installation and operating instructions.

Throughput for infrared communications with the 375 Field Communicator is approximately 4 kilobytes/second. The maximum recommended distance between the IrDA and PC is 18 inches.

Card Readers

The 375 Field Communicator can also communicate with PCs using a supported USB Secure Digital card reader. Insert the 375 System Card into a card reader, and system software upgrades and device descriptions can be sent to the System Card using the Easy Upgrade Programming Utility. Your System Card must be licensed for the Easy Upgrade option to download system software and device descriptions to it.

A supported card reader may be required to download a large system software upgrade to your System Card. See www.fieldcommunicator.com or the readme.txt file on the Resource CD for the supported card readers.

NOTE

The card reader provides faster upload and download speeds than an IrDA adapter; however, it cannot transfer licenses, event capture files, or user data files. See the Easy Upgrade Programming Utility online Help for details.

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Learning the Basics

NOTE

The instructions in this manual are written for using the IrDA connection, not the card reader.

Listen For PC

In Listen For PC mode, the 375 Field Communicator is under the control of a PC application for transferring data and managing device configurations. The PC application could be one of the following:

• AMS Suite: Intelligent Device Manager (version 6.2 or higher), software for managing devices and valves in a process plant. Currently, AMS Device Manager supports HART configurations only.

• 375 Easy Upgrade Programming Utility.

NOTE

The On/Off key, and the stand-by and auto-off timers are disabled when the 375 Field Communicator is in Listen For PC mode.

The 375 Field Communicator must be in Listen For PC mode when communicating through IrDA.

To enter Listen For PC:

1. From the 375 Main Menu, select Listen For PC.

2. Align the 375 Field Communicator IrDA interface with the PC IrDA interface or an IrDA adapter.

3. Complete the necessary transfers using the Easy Upgrade Programming Utility or AMS Device Manager. See the Easy Upgrade Programming Utility online Help for more information.

4. Tap EXIT to close the Listen For PC screen.

If new system software was downloaded to the 375 Field Communicator System Card, an update occurs upon exit.

Learning the Basics

2-23

Transfer HART Configurations using AMS Device Manager

A Handheld Communicator Interface kit for AMS Device Manager (version 6.2 or higher) lets you use the 375 Field Communicator with AMS Device Manager. See the AMS Device Manager Books Online Help for more information.

To transfer HART configurations:

1. Set up a network interface for the 375 Field Communicator using AMS Device Manager Network Configuration. See the Books Online help for details.

2. Align the 375 Field Communicator IrDA interface with the PC IrDA interface, and enter Listen For PC mode.

3. In AMS Device Manager, double-click the 375 Field Communicator icon. The Expansion Module and Internal Flash icons are displayed.

4. Open a configuration file from one of the storage icons and perform your tasks with AMS Device Manager.

Easy Upgrade Programming Utility

The Easy Upgrade Programming Utility lets you upgrade a 375 Field Communicator with the latest device descriptions (DDs) and system software. All 375s can transfer event captures and user data (text) files using the Easy Upgrade Programming Utility. A System Card must be licensed for Easy Upgrade to download new system software or DDs.

You can also enable new functionality, such as the Graphics license, for any 375 at your site by using the Online Licensing feature. Available licenses include FOUNDATION fieldbus, Graphics, and Easy Upgrade.

If you cannot download new system software or DDs because your System Card is full, use the Memory Management feature to select which DDs can be downloaded to your System Card. Reducing the number of DDs on a System Card can save a significant amount of space.

See the Easy Upgrade Programming Utility online Help for details.

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Learning the Basics

Using ScratchPad

ScratchPad is a text editor that you can use to create, open, edit, and save simple text (.txt) documents. You can transfer text files between a PC and the 375 Field Communicator using the Easy Upgrade Programming Utility. ScratchPad supports very basic formatting.

From the 375 Main Menu, double-tap ScratchPad to run the ScratchPad. You can also launch the ScratchPad from within the HART or Fieldbus Application by tapping the ScratchPad ( ) icon in the upper right corner of the screen.

NOTE

The On/Off key, and the stand-by and auto-off timers are disabled when ScratchPad is open.

After ScratchPad is launched, you can perform the following operations:

Create a New Document

From the Main Page in the ScratchPad, tap NEW. An empty text window and SIP keypad appears. See Figure 2-6. You are now ready to enter text into your new document.

A new document can also be created within ScratchPad by tapping the New ( ) icon in the toolbar or by selecting File | New from the menu.

Figure 2-6. New document in ScratchPad

Learning the Basics

2-25

Open an Existing Document

1. From the Main Page in the ScratchPad, select the desired file located under File Name.

2. Tap the OPEN button. A text window and the SIP keypad appears. You are now ready to edit your document.

You can also open a document by selecting File | Open from the menu bar or by tapping the Open ( ) icon in the toolbar.

Enter Text

Using the stylus, tap the desired letters from the SIP keyboard. Using the keypad, press the desired keypad button in quick repetitions to display the appropriate letter or number.

Select Text

Drag the stylus over the desired text to highlight, or to select all of the text in the document tap Edit | Select

All.

Cut Text

1. Select the text to be cut.

2. Tap Edit | Cut.

You can also cut text by selecting text and tapping the Cut ( ) icon in the toolbar.

Copy Text

1. Select the text to be copied.

2. Tap Edit | Copy.

You can also copy text by selecting text and tapping the Copy ( ) icon in the toolbar.

Paste Text

1. Copy the text to be pasted.

2. Tap a location on the screen. This is where the text will be pasted.

3. Tap Edit | Paste.

You can also paste text by copying the text to be pasted and tapping the Paste ( ) icon in the toolbar.

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Learning the Basics

Save a Document

1. In your document, tap File | Save.

2. Type the file name in the dialog box if your document is new.

3. Tap OK.

You can also save a document by tapping the Save ( ) icon in the toolbar.

Save a Copy

To save a copy of the current document under ano ther name:

1. In your document, tap File | Save As...

2. Type the copy file name in the dialog box.

3. Tap OK.

Delete a Document

There are three options for deleting a ScratchPad document:

Option 1

1. From the Main Page in ScratchPad, select the file to be deleted.

2. Tap DELETE.

3. A warning appears telling you that the selected file will be permanently deleted. If you are sure you want to delete this file, tap Yes.

Option 2

1. T o de l et e fro m you r do cu me nt, tap File | Delete.

2. From the Delete File Page, tap the desired file to be deleted.

3. Tap OK.

4. A warning appears telling you that the selected file will be permanently deleted. If you are sure you want to delete this file, tap Yes.

5. Tap EXIT when you are fi ni shed deleting files.

Option 3 Delete the .txt file using the Easy Upgrade Programming

Utility. See the Easy Upgrade Programming Utility online Help for more information.

Learning the Basics

MANAGING STORAGE

2-27

Exit ScratchPad

1. In your document, tap File | Exit.

2. Tap the EXIT button from the Main Page.

Types of Storage

The 375 Field Communicator memory consists of four components:

1. Internal Flash—32MB non-volatile RAM. The Internal Flash memory stores the operating system and system software. It also stores the following:

• Up to 25 HART configurations

• HART event captures

•F

OUNDATION fieldbus statistics

• User generated text files

The optional Configuration Expansion Module (spare part number 00375-0043-0001) lets you store more than 25 configurations; see below for more information.

2. System Card—an internal Secure Digital Card with non-volatile Flash memory. A copy of installable 375 Field Communicator system software exists on every System Card. The System Card also contains all HART and F

OUNDATION fieldbus device descriptions.

3. RAM—32MB used only for program execution.

4. Expansion Module—an optional removable memory card that snaps into the Expansion Port on the side of the 375 Field Communicator. The Configuration Expansion Module can store in excess of 500 HART configurations.

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Learning the Basics

Free Memory on a System Card

MAINTENANCE

When you add new device descriptions and system software to your 375 Field Communicator, more space on your System Card is used. Over time, your System Card will become full and there will not be enough memory to add new files.

You can use the System Card Memory Management feature in the Easy Upgrade Programming Utility to free space on your System Card. This feature lets you select which device descriptions can be downloaded. Reducing the number of DDs on a System Card can save a significant amount of space. For example, if your site uses only HART devices, use Memory Management to ensure only device descriptions for these devices are downloaded to your System Card. See the Easy Upgrade Programming Utility help for details.

Any maintenance, repair, or replacement of components not listed below must be performed by specially trained personnel at authorized service centers. You can perform common maintenance procedures on the 375 Field Communicator, as described below:

• Cleaning the exterior. Use only a dry, lint-free towel or dampen the towel with a mild soap and water solution.

• Charging, removing, and replacing the battery.

• Removing and replacing the System Card.

• Removing and replacing the Expansion Module or Expansion Port Plug.

• Removing and replacing the stand assembly.

• Ensuring that all exterior screws are sufficiently tightened.

• Ensuring that the Communication Terminal recess is free of dirt and debris (does not require disassembly).

Running a Self Test

There is no need, nor is it possible, to perform a manual self test with the 375 Field Communicator. Testing features are done automatically. A warning message appears if a fault condition is found during these tests.

Learning the Basics

2-29

Calibrating It is not necessary or possible to calibrate the 375 Field

Communicator. The 375 Field Communicator is a communication interface that communicates digitally with HART and F

Voltage measurements made by the 375 Field Communicator are for use in detection of power or noise on a network and are for reference purposes only. Your 375 Field Communicator is not applicable to NIST standards and is not subject to calibration.

OUNDATION fieldbus devices.

WASTE DISPOSAL

HAZARDOUS SUBSTANCES

Products with the following label comply with the Waste Electrical and Electronic Equipment (WEEE) directive, 2002/96/EC, which applies to European Union (EU) member states only.

The label indicates this product should be recycled and not treated as household waste. Customers in EU member states should

contact their local Emerson sales representative for information on discarding any part of the 375 Field Communicator.

For customers in all other world areas, if it is necessary to discard any part of the 375 Field Communicator, adhere to the waste-disposal regulations applicable in your locality.

Products with the following label are lead-free and comply with the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) directive, 2002/95/EC, which applies to EU member states only.

The purpose of the directive is to limit the use of lead, cadmium, mercury , hexavalent chromium,

RoHS

polybrominated biphenyl (PBB), and polybrominated diphenyl ether (PBDE) flame retardants in electronic equipment.

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Learning the Basics

USER’S MANUAL

February 2009

375 FIELD COMMUNICATOR

SECTION 3 HART FUNCTIONALITY

OVERVIEW This section provides instruction on basic HART

functionality in the 375 Field Communicator. It is based on the operation of the HART Application version 4.0.

SAFETY MESSAGES

Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operation. Information that raises potential safety issues is indicated by a warning symbol ( ). Refer to the following safety messages before performing an operation preceded by this symbol. Other warning messages can be found in the Troubleshooting section of this manual.

WARNING

If you choose to ignore all field device status messages, every message f rom nuisance to critical will be ignored.

WARNING

Voltage measurements are for reference purposes only. Do not make critical process control decisions based upon these measurements.

www.fieldcommunicator.com

3-2

HART Functionality

BASIC FEATURES AND FUNCTIONS

USING A FAST KEY SEQUENCE

STARTING THE HART APPLICATION

Interpreting the HART icon

A beating hollow heart icon ( ) is displayed when the 375 Field Communicator is communicating with a live HART device. A solid beating heart is displayed when the 375 Field Communicator is communicating to a HART loop with a device in burst mode. A hollow or solid heart surrounded by rays ( ) indicates the 375 Field Communicator is in shout/deaf mode, which helps the 375 communicate with a device when it is on a noisy loop. The HART logo is displayed when communication is not occurring. This is common when only static parameters are listed.

A Fast Key sequence is a sequence of numerical button presses, corresponding to the menu options that lead you to a given task. The Fast Key sequences are identical to the sequences used on the 275 HART Communicator. See your field device documentation for fast key sequence options.

To start the HART Application:

1. Turn on the 375 Field Communicator.

2. Double-tap HART Application on the 375 Main Menu. If a live HART device is connected to the 375 Field Communicator, the HART Application Online menu displays automatically. If a device is not connected, the HART Application main menu displays after a few seconds.

To navigate back to the 375 Main Menu, press the back arrow key.

From the HART Application main menu, you can choose Offline, Online, Utility, or HART Diagnostics functions. The rest of this section will guide you through the HART Application menus and functions.

HART Functionality

3-3

WORKING OFFLINE

Creating New Configurations

The Offline menu lets you create, view, and change offline configurations stored in the 375 Field Communicator.

There are two types of HART configurations: device configurations and user configurations. A device configuration is created from a connected, online HART device. A user configuration is created offline or transferred to a 375 Field Communicator from another program. Editing a device configuration within the 375 Field Communicator changes it to a user configuration.

The concept of partial or standard configurations does not apply to the 375 Field Communicator. All configurations are full configurations.

Creating a new configuration lets you create a user configuration for a specific device type and re vi sio n .

To create a new HART configuration while working offline:

1. From the HART Application main menu, double -tap Offline.

2. Double-tap New Configuration. The manufacturer names of the installed device descriptions are listed.

3. Double-tap the desired manufacturer to expand the list. The models available for the manufacturer are listed.

4. Double-tap the desired device model to expand the list. The device revisions available for the selected device model are listed.

5. Double-tap the desired device revision.

6. If a warning appears, thoroughly read the warning, tap CONT to accept the warning and proceed, or tap EXIT.

7. Mark the configurable variables you want sent to the HART device. Double-tap Mark all | OK to have all variables marked. Double-tap Unmark all | OK to clear the marks from all variables. A “+” symbol indicates a mark to send. A “*” symbol indicates a parameter has been edited.

3-4

HART Functionality

To mark and edit variables individually:

a.Double-tap Edit individually to configure specific

variables before sending them to a device.

b.Scroll through the list of variables and select the

variable you want to mark or edit. To change the value for the selected variable, tap

EDIT, change the value, and tap ENTER. To mark the selected variable, tap MARK.

c.Repeat these steps for other variables as necessary

and tap EXIT when you are finished.

8. To save a new configuration, double-tap Save as... (The SAVE button automatically brings you to the Save as... menu.)

a.To change the location where the configuration is

saved, double-tap Location, select an option, and tap ENTER.

b.To specify a name for t he configuration, double-tap

Name, enter the name, and tap ENTER.

c.Tap SAVE.

Opening Saved Configurations

Once opened, a saved configuration lets you edit, copy, send, delete, or rename it. You can also compare it to other saved configurations.

To open a saved configuration:

1. From the HART Application main menu, double-tap Offline.

2. Double-tap Saved Configuration.

3. Double-tap the storage location where you saved the configuration—Internal Flash Contents or Configuration EM (Expansion Module) Contents.

4. Double-tap the desired configuration to open the menu selection.

The FILTR button opens a menu that provides both sort and tag filter options. These options let you customize your view of saved configurations.

• The Sort option lets you group and display configurations according to your choice of name, tag, or descriptor.

• The Filter opt i on le ts you customize your group according to what you entered with Sort by picking characters from the device name, tag, or descriptor.

HART Functionality

3-5

When setting up a filter, you can use two special characters: the period (.) and the asterisk (*). The period replaces a single character of any value. The asterisk represents a string of alphanumeric characters of any value.

For example, if you want to list all configurations that have a tag or name of P - 001 to P - 300, enter “P - *” in the filter. If you want to list configurations that have a tag or name that begins P - 0 and ends with a 7, set the filter to “P - 0.7”.

The XPAND button lets you view the device name, tag, manufacturer, device type, device revision, descriptor, and the configuration type. Tap CMPRS to return to the previous compressed screen.

Edit a Saved Configuration

The Edit option lets you edit a saved configuration while working offline.

To edit a saved configuration:

1. Open a saved configuration.

2. From the Saved Configuration menu, double-tap Edit.

3. If a warning appears, thoroughly read the warning, tap CONT to accept the warning and proceed, or tap EXIT to end this operation.

4. Mark the configurable variables you want saved in the configuration. Double-tap Mark all | OK to have all variables marked. Double-tap Unmark all | OK to clear the marks from all variables. To mark and edit variables individually:

a.Double-tap Edit individually to configure specific

variables before sending them to a device.

b.Scroll through the list of variables and select the

variable you want to mark or edit. To change the value for the selected variable, tap

EDIT, change the value, and tap ENTER. To mark the selected variable, tap MARK. A “+”

symbol indicates a mark to send. A “*” symbol indicates a parameter has been edited.

c.Repeat these steps for other variables as

necessary.

d.Tap Exit.

5. Tap SAVE.

3-6

HART Functionality

Copy a Saved Configuration

The Copy to... option lets you copy a saved configuration to a new storage location.

To copy a saved configuration:

1. Open a saved configuration.

2. From the Saved Configuration menu, doub le-tap

Copy to...

3. Double-tap Location and choose the storage location to which you want to save the configuration—Internal Flash or Configuration Expansion Module (EM) and tap ENTER.

4. Double-tap Name, enter the name for the copy of the configuration, and tap ENTER.

5. Tap SAVE to copy the configuration to a new location.

Send a Saved Configuration to a Connected Device

The Send option lets you send the open configuration to a connected device. From the Saved Configuration menu, double-tap Send. The 375 Field Communicator sends the configuration to a connected device that is compatible with the configuration.

Delete a Saved Configuration

The Delete option lets you remove a configuration from the 375 Field Communicator.

To delete a configuration from the 375 Field Communicator:

1. Open a saved configuration.

2. From the Saved Configuration menu, doub le-tap Delete.

3. Tap Yes to confirm the deletion.

HART Functionality

3-7

Rename a Saved Configuration

The Rename option lets you change the name of a saved configuration.

To rename a saved HART configuration:

1. Open a saved configuration.

2. From the Saved Configuration menu , double-tap Rename.

3. Enter the new file name and tap ENTER.

4. Tap SAVE.

Compare Two Saved Configurations

Any two configurations can be compared. However, the conditions below must be met to compare two configurations of the same field device.

• Device type (including manufacturer), device revision, and DD revision must match exactly. A dialog box appears if the configuration is different, but you will not be told the differences.

• Configurations can only be compared against other configurations containing the same set of variables. The 375 Field Communicator notifies you if this condition is not met.

• The format of data storage must match exactly. The 375 Field Communicator notifies you if this condition is not met.

To compare two saved configurations:

1. Open a saved configuration.

2. From the Saved Configuration menu , double-tap Compare.

3. Choose the storage location that contains the other configuration file—Internal Flash or Configuration EM (Expansion Module) and tap ENTER.

4. Double-tap Name to select the configuration file.

5. Double-tap the desired file to compare.

6. Tap COMP to compare the configurations.

7. Tap OK.

3-8

HART Functionality

WORKING ONLINE

Connecting to a HART Loop

The 375 Field Communicator can communicate with a transmitter from the control room, the instrument site, or any wiring termination point in the loop.

Connect the 375 Field Communicator with the appropriate connectors in parallel with the instrument or load resistor. The HART connections are not polarity sensitive.

A minimum of 250 ohms resistance must be present in the HART loop for the 375 Field Communicator to function properly.

For information about intrinsically safe connections, see Appendix B.

NOTE

Dynamic variables shown while online represent the digital data being sent from the device.

Three terminals for the lead set are on the top of the 375 Field Communicator. The lead set and terminals let you connect the 375 Field Communicator to a device. Each red terminal is a positive connection for its protocol. The black terminal is a common terminal shared by both protocols. An access door ensures only one pair of terminals is exposed at any one time; see Figure 3-1. Several markings indicate which pair of terminals is for which protocol.

HART Functionality Figure 3-1. HART Terminal Access Door

NOTE

The lead set must be used to communicate with a wired or wireless device.

Figure 3-2 illustrates how to connect the 375 Field Communicator to a HART loop.

Figure 3-2. Connecting to a HART Loop

HART compatible

device

HART Terminal Markings

RL≥250Ω

Power

supply

3-9

Current

meter

3-10

Figure 3-3 illustrates how to connect the 375 Field Communicator directly to the terminals of a HART device.

Figure 3-3. Connecting Directly to a HART Device

HART compatible

device

Figure 3-4 illustrates how to connect the optional 250 ohm resistor. Attaching a resistor is necessary if less than 250 ohms resistance is present in the HART loop.

Figure 3-4. Connecting with a 250 Ohm Resistor

HART compatible

device

RL≥250Ω

Current

meter

–

HART Functionality

Power

Supply

Power

supply

–

Optional 250-Ohm Load Resistor

To temporarily install the optional 250 ohm lo ad resistor:

1. Insert the load resistor into the lead set jacks.

2. Open the loop to allow conn ection of the resistor in series in the loop.

3. Close the loop using the lead set connecto rs.

HART Functionality

3-11

Displaying the Online Menu

The Online menu is the first menu to appear when connected to a HART device. To view process information for a connected device, select an item from the Online menu. A typical online menu is shown in Figure 3-5.

This menu displays critical, up-to-date process information that is continuously updated, including device setup, primary variable (PV), analog output (AO), PV lower range value (LRV), and PV upper range value (URV). The configuration parameters for devices vary from device to device and are defined in the device description. See your field device user’s manual for more information.

Figure 3-5. Online Menu Example

Because the Online menu displays important information, some menus provide instant access to this window. When access is available, the HOME button is displayed to return you to the HART Online menu.

Once you have made changes to the parameters, you can send them to the device from this window. An asterisk appears next to the parameter name of any un-sent item.

3-12

HART Functionality

Saving an Online Device Configuration

Displaying the Device Setup Submenu

When a configuration is saved from a connected device, it is saved as a device configuration.

To save the configuratio n in the connected device:

1. Connect the 375 Field Communicator to a HART loop or directly to the device and turn on the 375 Field Communicator.

2. Double-tap HART Application from the 375 Main Menu. The HART Online menu appears.

3. Tap Save.

a.To set the location where the configuration will be

saved, double-tap Location, select Internal Flash or Configuration EM (Expansion Module), and tap ENTER.

b.To enter a name for the configuration , do uble-tap

Name, type the name, and tap ENTER.

4. Tap Save. If the configuration already exists, a message is displayed. T ap YES to overwrite the older version with the new version, or tap NO to return to the Save as screen.

The Device Setup menu accesses every configurable parameter of the connected device. Double-tap Device setup to view the process variables, diagnostics and service, basic setup, detailed setup, and review menus.

Process Variables (PV)

The PV menu lists all process variables and their values. Process variables are continuously updated when this screen is displayed.

Diagnostics and Service

The Diagnostics and Service menu lists device and loop tests as well as calibration options. The diagnostics and service operations that are available vary widely from device to device and are defined in the device description.

The T est device menu list s the st atus as well as self and master test of the device. Test device initiates a diagnostic routine at the device and can report an electronics failure, as well as other failures that can affect performance.

HART Functionality

3-13

Loop test is used to set the output of the device at a specified analog value, and may be used to test the integrity of the loop and the operation of indicators, recorders, or similar devices in the loop.

Calibration is used to perform such operations as performing a sensor trim, D/A trim, and scaled D/A trim.

Basic setup

The Basic setup menu provides quick access to a number of configurable parameters including tag, unit, range values, and damping.

The options available in the Basic setup me nu are the most fundamental tasks that can be performed with a device. These tasks are a subset of the options available under the Detailed setup menu.

The Tag alphanumeric identifies a specific device. Changing the unit option affects the engineering units that are displayed. Changing range values changes the analog output scaling. Changing damping affects the response time of the transmitter and is often used to smooth the output when there are rapid input variations.

Detailed setup

The Detailed setup menu provides access to every editable device parameter and all device functions. The Detailed setup menu varies from one HART device to another. Functions in this menu can include characterization, configuration, and sensor and output trims.

Review

The Review menu lists all of the static parameters read from the connected device, including information about the device and sensor setup and limitations. It also includes information about the connected device such as tag, materials of construction, and device software revision.

3-14

HART Functionality

Displaying Graphics

The HART Application offers graphical views of device data by using the enhanced Electronic Device Description Language (EDDL) technology. Device data can be presented as images, charts, and graphs. These options are displayed as items in the Online menu and its submenus. The placement of the Graphics options in the menus varies from device to device because it is determined by the device manufacturer.

To view the graphical representations, you need a device with enhanced EDDL, a 375 Field Communicator with a Graphics license, and 375 system software version 2.0 or higher. Only devices with enhanced EDDL offer graphical representations of data. If the 375 Field Communicator does not have a Graphics license, enhanced DDs can still be used. However, the graphical representations are not displayed.

The Graphics license can be purchased through your 375 sales representative. The Graphics license can then be enabled in a 375 by using the Online Licensing feature in the Easy Upgrade Programming Utility. See Appendix C for more information about the Graphics functionality.

HART Functionality

USING HOT KEYS

3-15

Setting up Hot Key Options

The Hot Key menu is a user-definable menu that can store shortcuts for up to 20 of your most frequently performed tasks. For example, if you change device tags and damping often, you can add options for these functions to the Hot Key menu. When you are online, the Hot Key automatically appears in the toolbar. Hot Keys created from generic DDs will not be saved.

To add a custom option to the Hot Key menu:

1. Select the option you want to add to the Hot Key menu from the Online menu or any of the submenus.

2. Tap and hold the Hot Key ( ). The Hot Key Configuration window shows the new option you are adding.

3. Tap ADD.

4. Tap ALL to add the Hot Key option for all devices supported by the 375 Field Communicator, or tap ONE to add the Hot Key option for only the device type to which you are currently connected.

5. If the message “Mark as read only variable on Hot Key menu” displays, choose one of the following:

• YES: The variable for this option is read-only, meaning you can view but not change its value.

• NO: You can view and change the value for this variable.

6. Respond to the message “Display value of variable on Hot Key menu?” by choosing one of the following:

• YES: The value of this variable will appear on the Hot Key menu.

• NO: The Hot Key menu will show the name of the variable but not its value.

7. Tap the EXIT button on the Hot Key Configuration window to return to the original menu. The new option is added to the Hot Key menu.

3-16

HART Functionality

Executing a Hot Key Option

Removing a Hot Key Option

Removing all Hot Key Options

To use a Hot Key option, you must first properly connect the 375 Field Communicator to a device. You can access the Hot Key menu from any online screen.

To use a Hot Key option:

1. Connect the 375 Field Communicator to a HART loop or device.

2. Tap the Hot Key ( ).

3. Double-tap the desired option from the Hot Key menu.

To remove individua l Hot Key options:

1. Tap and hold the Hot Key ( ). The Hot Key Configuration window appears.

2. Double-tap the menu option you want to remove.

NOTE

Range Values is a predefined option and cannot be removed. It provides quick access for viewing or changing the range for a device.

3. Tap the DEL button.

4. When you are done, tap EXIT to close the Hot Key Configuration window.

To remove all Hot Key options currently defined:

1. From the HART Application main menu, double-tap Utility.

2. Double-tap Configure HART Application.

3. Double-tap Storage Cleanup.

4. Double-tap Hotkey Menu.

5. Tap YES if you are sure you want to delete all the items from the Hot Key menu. Tap NO to return to the Storage Cleanup menu.

HART Functionality

CONFIGURING THE HART APPLICATION

3-17

Changing the HART Polling Option

Use the HART polling option to configure your 375 Field Communicator to automatically search for all or specific connected devices. Most HART device installations contain one device per loop and the device address is zero.

To have more than one device per loop, wire the devices in parallel and place into “Multidrop” mode. This mode is enabled by changing the address from zero to any address between 1-63. After the mode is enabled, the analog output of each device is fixed and no longer represents any variable.

NOTE

Communication errors, such as a device appearing at multiple addresses, can occur when you poll addresses greater than 15 on a loop with both HART revision 5 or earlier and HART revision 6 or 7 devices.

To change the polling option:

1. From the HART Application main menu, double-tap Utility.

2. Double-tap Configure HART Application.

3. Double-tap Polling Options. Select one of the following polling options:

• Poll by Address - Lets you poll for devices at the addresses listed in the Polling Addresses menu option. The Polling Addresses menu appears on the Configure HART Application screen only when Poll by Address is selected. Select one of the following options from the Polling Addresses menu:

3-18

HART Functionality

Polling Address Use

0 Poll loops that are not multi-dropped. 0-15 Poll HART revision 5 or earlier devices on

0-63 Poll HART revision 6 or 7 devices on 63 Poll the default address for HART revision 7 Custom Range Poll a unique or non-consecutive group of

multi-dropped loops. multi-dropped loops. WirelessHART adapters. addresses (example: “0, 5-7, 12”). Use a

hyphen to specify consecutive addresses and a comma to separate numbers or groups of numbers.

• Poll Using Tag - Lets you enter and poll by the tag of the device. You are prompted to enter a tag name when the HART Application starts.

• Poll Using Long Tag - Lets you enter and poll by the long tag of the device. You are prompted to enter a tag name when the HART Application starts. (Only supported in HART revision 6 or higher devices.) Double-tap when the tag is truncated to display the full tag.

• Poll Using Unique ID -Lets you poll using the device’s unique ID. For HART revision 7 devices, the unique ID is the expanded device type, a hyphen, and device ID. For HART revision 6 and earlier devices, the unique ID is the manufacturer ID, device type, a hyphen, and device ID.

4.Tap Enter. Refer to your device manual for information about changing a device polling address.

HART Functionality

3-19

Changing Ignored Status Messages

Changing the Menu Title

The 375 Field Communicator displays status messages from the connected HART device. The Ignore Status option lets you specify the number of field device status messages that are ignored, extending the time between displayed messages. The default is 50 messages. If you choose to ignore all field device status me ssages, ev ery message from nuisance to critical will be ignored.

To change the number of ignored status messages:

1. From the HART Application main menu, double-tap Utility.

2. Double-tap Configure HART Application.

3. Double-tap Ignore Status.

4. Enter the number of status messages you want ignored before the next message is displayed. You can specify a number from 50 to 500.

5. Tap ENTER. All field device status messages are ignored until the quantity specified has been reached.

The HART 6 Tag menu lets you choose if the HART short or long tag is displayed in the menu title for HAR T revision 6 devices. The short tag can have up to 8 characters, and the long tag can have up to 32 characters. These tags can be edited at any time. If the long tag does not fit on the screen, an ellipsis is shown at the end of the tag. The location of these parameters in the Online menu varies because it is determined by the device manufacturer.

To select a HART tag for the menu title:

1. From the HART Application main menu, double-tap

Utility.

2. Double-tap Configure HART Application.

3. Double-tap HART 6 Tag.

4. Select Show Long Tag to display the HART long tag, or select Show Short Tag to display the HART short tag.

5. Tap ENTER.The 375 Field Communicator continues to use the option you selected until you change the setting.

3-20

HART Functionality

Storage Cleanup

Viewing Available Device Descriptions

The Storage Cleanup menu lets you delete the following items:

• Internal Flash - By selecting YES, you will remove all configurations saved in the Internal Flash.

• Configuration Expansion Mod ul e - By selecting YES, you will remove all configurations saved in the Configuration Expansion Module.

• Hotkey Menu - By selecting YES, you will delete all items from the Hotkey menu.

The Available Device Descriptions menu lets you view all the device descriptions in the 375 Field Communicator. HART device descriptions enable the 375 Field Communicator to recognize and configure specific HART devices.

To view the currently installed HART device descriptions:

1. On the HART Application main menu, double-tap Utility.

2. Double-tap Available Device Descriptions. The manufacturer names of the installed device descriptions are listed.

3. Double-tap the desired device manufacturer to expand the list. The models available for the manufacturer are listed.

4. Double-tap the desired device model. The device revisions available for the selected model are listed. One of the following icons appears next to each device description to indicate its status:

- A tested device description can be used with the

system software version in the 375 Field Communicator.

- An untested device description has not been formally tested for use with the system software version in the 375 Field Communicator. The device description can be used, but you may experience unexpected results.

- An incompatible device description cannot be used with the system software version in the 375 Field Communicator.

HART Functionality

3-21

Simulating an Online Connection to a HART Device

The 375 Field Communicator has a simulation mode that lets you simulate an online connection to a HART device without actually connecting to a device. Simulation mode is a training tool that helps you become familiar with devices before configuring them in a critical environment. A simulated configuration cannot be saved. Not all device descriptions have been optimized to run under simulation.

To simulate a connection to a HART device:

1. From the HART Application main menu, double-tap Utility.

2. Double-tap Simulation. The manufacturers with device descriptions installed in the 375 Field Communicator are listed.

3. Double-tap the desired manufacturer to expand the list. The models available for the manufacturer are listed.

4. Double-tap the desired model to expand the list. The device revisions available for the selected model are listed.

5. Double-tap the desired device revision. Refer to the device manual to determine the device revision.

6. If a warning appears, thoroughly read the warning, tap CONT to accept the warning and proceed, or tap EXIT to return to the Utility menu. (This warning will not appear if your device is tested.) The Online menu for the simulated device is displayed. You can now use the 375 Field Communicator as if it were connected to the selected device and perform any online task.

3-22

RUNNING HART DIAGNOSTICS

HART Functionality

DC Voltage Measurement (HART Terminals)

DISCONNECTING FROM A HART DEVICE

The HART DC voltage measurement takes a voltage reading at the HART connector and displays it on the screen.

To check the device voltage:

1. From the HART Application main menu, double-tap HART Diagnostics.

2. Double-tap DC Voltage Measurement. The DC voltage measurement is displayed. Tap OK when done viewing the measurement. To refresh the screen, double-tap DC Voltage Measurement from the HART Diagnostics menu. Voltage measurements are for reference purposes only.

Prior to disconnecting the 375 Field Communicator from a HART device, be sure to check the following items:

• Determine if you want to save a configuration.

• Verify methods are complete.

• Resolve any un-sent data to the device.

USER’S MANUAL

February 2009

375 FIELD COMMUNICATOR

SECTION 4FIELDBUS FUNCTIONALITY

OVERVIEW This section provides instruction on basic fieldbus

functionality in the 375 Field Communicator. It is based on the operation of the FOUNDATION Fieldbus Application version 5.0.

SAFETY MESSAGES

Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operation. Information that raises potential safety issues is indicated by a warning symbol ( ). Refer to the following safety messages before performing an operation preceded by this symbol. Other warning messages can be found in the Troubleshooting section of this manual.

WARNING

If a segment is connected to a host system, the changes made with the 375 Field Communicator may not be recorded in the host system’s permanent database. Verify the changes in the database. Otherwise, this could cause unpredictable results and, depending upon your application, process disruption leading to property damage, serious injury, or death. Ensure all safety precautions and work procedures have been followed.

WARNING

Changing device parameters could adversely affect the control of your process. Put the control loop in Manual/Out of Service before applying changes. Verify the output before returning the control loop to Auto. Failure to do so could result in property damage, serious injury, or death. Ensure all safety precautions and work procedures have been followed.

www.fieldcommunicator.com

4-2

Fieldbus Functionality

WARNING

The 375 Field Communicator draws approximately 17 mA from the fieldbus segment. Be sure the power supply or barrier on the fieldbus segment has the capacity to provide this additional current. If a heavily loaded fieldbus segment is drawing near the capacity of the segment’s power supply, connecting the 375 Field Communicator may result in loss of communication.

BASIC FEATURES AND FUNCTIONS

Link Active Scheduler (LAS)

All segments have only one Link Active Scheduler (LAS). The LAS operates as the bus arbiter for the segment. The 375 Field Communicator is set up to always be the last node to become the LAS on a segment.

The devices that are capable of becoming the LAS are called link master devices. All other devices are referred to as basic devices. When a segment first starts up, or upon failure of the existing LAS, the link master devices on the segment bid to become the LAS. The link master that wins the bid (the one with the lowest address) begins operating as the LAS immediately upon completion of the bidding process. Link masters that do not become the LAS can act as LAS backups by monitoring the segment for failure of the LAS and then bidding to become the LAS when a LAS failure is detected.

Although the 375 Field Communicator is capable of becoming the LAS, it does not maintain the communication schedule and should not be thought of as a backup LAS.

Only one device can communicate at a time. Permission to communicate on the bus is controlled by a centralized token passed between devices by the LAS. Only the device with the token can communicate. The LAS maintains a list of all devices that need access to the bus. This list is called the Live Device List; see “Displaying the Live Device List” on page 4-9.

Fieldbus Functionality

LAS Hierarchy When a 375 Field Communicator is connected to a live

fieldbus segment, it joins the fieldbus segment but not as the LAS. This means the 375 Field Communicator can view and edit device parameters, but the control of the segment is still handled by the node that is designated the LAS for the segment. You can also read and write if there is another LAS. Prior to connecting to a host system, review the 375 Field Communicator Host System Interoperability on www.fieldcommunicator.com.

4-3

Device Interoperability

The 375 Field Communicator is designed to operate with a wide range of FOUNDATION fieldbus devices independent of device manufacturer. Device interoperability is achieved through the use of Device Description Language (DDL) technology supported by the Fieldbus Foundation.

Basic testing is performed on all device descriptions. In addition, each device manufacturer is asked to certify that they have thoroughly tested their devices with the 375 Field Communicator. If certification is not received, a warning message will display when you attempt to access an untested device.

ST_REV ST_REV is a block parameter that increments each time

a block configuration has changed. While a list of parameters is displayed, the 375 Field Communicator continuously reads the ST_REV of that particular block. If it sees the ST_REV counter has incremented, it knows that there has been a change to the block, and it automatically refreshes (rereads) all of the block parameters. Thus, there would only be a very short period of time before a change made by another host would appear on the 375 Field Communicator display.

4-4

Fieldbus Functionality

STARTING THE FIELDBUS APPLICATION

A general warning message may appear upon starting the Fieldbus Application when an LAS is detected on the segment. Select YES to go to the Live Device List, NO to return to the 375 Main Menu, or HELP to get more information on the warning.

To start the Fieldbus Application:

1. Turn on the 375 Field Communicator. The 375 Main Menu is displayed.

2. Double-tap F

OUNDATION Fieldbus Application from

the 375 Main Menu. If a live fieldbus device is connected to the 375 Field Communicator, the Fieldbus Application main menu will briefly display followed by the Live Device List. Figure 4-1 shows the Fieldbus Application main menu.

If insufficient voltage is detected, a warning message appears. Press OK to go to the Fieldbus Application main menu.

Figure 4-1. Fieldbus Application main menu screen

A connection warning message may appear if no communication is detected. This means that a LAS is not recognized by the 375 Field Communicator. This typically occurs when connecting to a single device.

To go back to the 375 Main Menu, press the back arrow button. From the Fieldbus Application main menu, you can choose Online, Utility, or Fieldbus Diagnostic functions. The rest of this section guides you through the Fieldbus Application menus and functions.

Fieldbus Functionality

4-5

WORKING ONLINE

Connecting to a Fieldbus Segment

The online menus display data for the device to which you are connected. The online menus display critical, up-to-date process information, including the segment Live Device List, Block Lists, device menus, and parameter functionality.

NOTE

It is normal for processes to take longer the greater the amount of scheduled communication. This is influenced by the number of devices and the control methods in place.

Connect the 375 Field Communicator with the appropriate connectors in parallel with the device. Due to measurement circuitry, the 375 Field Communicator fieldbus connections are polarity sensitive. An error message displays if the device is connected incorrectly.

For information about intrinsically safe connections, see Appendix B.

NOTE

Dynamic variables shown while online represent the digital data being sent from the device.

Digital communication is susceptible to electrical noise; follow proper wiring instructions.

4-6

Three terminals for the lead set are on the top of the 375 Field Communicator. The lead set and terminals let you connect the 375 Field Communicator to a device. Each red terminal is a positive connection for its protocol. The black terminal is a common terminal shared by both protocols. An access door ensures only one pair of terminals is exposed at any one time; see Figure 4-2. Several markings indicate which pair of terminals is for which protocol.

Figure 4-2. Fieldbus terminal access door

Fieldbus Functionality

Fieldbus Terminal Marking

Fieldbus Functionality

Bench Hook-Up

Figure 4-3 illustrates one method of connecting the 375 Field Communicator on a bench.

For segments that are limited in size, the power conditioner and terminators can be contained in a single wiring block.

Figure 4-3. Bench wiring diagram example

4-7

e r

i n a

t o r

Connection

Block

i n a

t o

Fieldbus

Power

Conditioner

24 VDC

Power

Supply

4-8

Field Hook-Up

Figure 4-4 illustrates one method of connecting the 375 Field Communicator to a fieldbus segment. The 375 Field Communicator can be connected at any convenient place along the bus (segment). In the field, this is typically done at the device or at the fieldbus junction box.

Figure 4-4. Field wiring diagram example

Fieldbus Functionality

Fieldbus

Host Control System

Fieldbus

Power

Conditioner

---

24 VDC

Power

Supply

e r

i n a

t o r

Fieldbus

Junction

Box

e r

NOTE

The 375 Field Communicator draws approximately 17 mA from the fieldbus segment. Be sure that the power supply or barrier on the fieldbus segment has the capacity to provide this additional current. If a heavily loaded fieldbus segment is drawing near the capacity of the segment’s power supply, connecting the 375 may result in loss of communication.

Fieldbus Functionality

4-9

Displaying the Live Device List

To display the active devices on a Fieldbus segment (Live Device List):

1. Connect the 375 Field Communicator to a Fieldbus segment.

2. Turn on the 375 Field Communicator.

3. Double-tap F

OUNDATION Fieldbus Application from

the 375 Main Menu.

4. On the Fieldbus Application main menu, double-tap Online. The Fieldbus Live Device List appears and indicates which device or host is acting as the LAS. The text LAS appears at the top of the screen only when the 375 Field Communicator is the LAS. See Figure 4-5.

If a live fieldbus device is connected to a host acting as the LAS, a precautionary message appears. The Live Device List is then displayed with key parameters from the connected device.

If an existing host control system or a device capable of being the LAS is not connected, the 375 Field Communicator acts as a temporary LAS on the segment and produces a warning message. After reading and following the message instructions, tap OK to display the Live Device List.

From the Live Device List, a Block List or a device menu is displayed for a device, depending on the device description.

Figure 4-5. Live Device List screen example

4-10

Fieldbus Functionality

Displaying the Block List

The Block List displays the block tag, block type, and actual mode of the device blocks. Consult your device manual or the Fieldbus Foundation for more information on blocks. F www.fieldcommunicator.com as they become available.

To view the Block List:

1. From the Fieldbus Application main menu, double-tap Online.

2. Double-tap a device.

Figure 4-6. Block List screen example

Displaying a device menu

Some devices, depending on their device description, display a device menu rather than the Block List. A device menu displays the same parameters as the Block List, but they are organized by function rather than by block. Options such as Overview, Configure, Service Tools, and Advanced may appear. The Block List is still accessible from the Advanced option in a device menu.

The menu items displayed in the device menu vary because they are determined by the device description. Refer to your device manual or www.fieldcommunicator.com for menu trees.

To view a device menu:

1. From the Fieldbus Application main menu, double-tap Online.

2. Double-tap a device.

OUNDATION fieldbus menu trees will be on

Fieldbus Functionality

4-11

Modes The resource, transducer, and all function blocks in the

device have modes of operation. These modes govern the operation of the block. Every block supports both automatic (AUTO) and out of service (OOS) modes. Other modes may also be supported.

Types of Modes

For the procedures described in this manual, it is helpful to understand the following modes:

AUTO

The functions performed by the block will execute. If the block has any outputs, these will continue to update. This is typically the normal operating mode.

MAN

In this mode, the output of the block can be manually overwritten for testing purposes.

Out of Service (OOS)

The functions performed by the block will not execute. If the block has any outputs, these will typically not update and the status of any values passed to other blocks will be “BAD”. Before you make changes to the configuration of the block, change the mode of the block to OOS. When the changes are complete, change the mode back to AUTO.

Other Types of Modes

Other types of modes are Cas, RCas, ROut, IMan and LO. For more information, see the Emerson Process Management, Rosemount Division Function Block manual, document 00809-0100-4783.

4-12

Fieldbus Functionality

Mode Parameters

Mode parameters are used to change the block mode from one state to another. There are four types of mode parameters: Target, Actual, Permitted, and Normal.

The Target mode is the mode that was assigned to a block and is used to change a block to a desired mode.

The Actual mode is the current mode of the block. The Permitted mode lists the modes that are allowed for

a block. Setting the Permitted modes prevents unauthorized changes to the operating mode of a block. To do this, configure the Block:Mode Permitted parameter to allow only the desired operating modes. It is recommended to always select OOS as one of the Permitted modes.

The Normal mode is the mode the block should be set to during normal operation conditions. Only the Permitted modes are displayed.

Locate Mode Parameters

In the resource and transducer blocks, the mode parameters are normally found in the Process menu. In all other function blocks, they are found in the Common Config menu. The mode parameters will also be included in the All parameter list; see “Working with Device Blocks” on page 4-14.

You can view and edit the Target mode parameter by tapping the MODE button in the menus.

Fieldbus Functionality

Change Modes

Whenever you need to change the parameters or properties of a block, you need to change the mode. A warning message may appear whenever the mode of any block is included in a list of parameter changes to be sent to a device.

To change the block mode:

1. Tap the MODE button in the Block Menu or de vi ce menu.

2. If prompted, select a block from the list and tap OK.

3. Uncheck the current mode. An asterisk (*) symbol appears next to Block Mode: Target to indicate a change has been made to the Target mode. If the mode checkboxes are read-only, the block may have been set to allow only one mode.

4. Tap the checkbox next to a mode to select it as the new Target mode. A checkmark appears.

5. Tap OK.

6. When the warning message appears, thoroughly read it and tap YES to send the change to the device, or tap NO to cancel the operation. A Mode Change screen showing the T arget mode and Actual mode are displayed until the Actual mode is updated. Tap CLOSE to close the Mode Change screen.

Figure 4-7. Device Block menu and Mode Screen

4-13

4-14

Fieldbus Functionality

Working with Device Blocks

The Block Menu is a submenu of the Block List. Block menus display block information for the fieldbus device to which you are connected.

The Block Menu is also available under the Advanced option in a device menu.

Devices that do not support transducer block menus within the device description will have the following selections: All, Process, Status, Other.

If methods are incorporated into the transducer block, they are displayed as either Diagnostic Methods or Calibration Methods.

Tap All to display all of the parameters for the desired block. It may take several minutes to display the parameters. It is recommended that you use this only if you are unable to find your desired selection elsewhere.

Display the Block Menu

If the device description supports menus, you can display the Block Menu by performing the following steps:

1. From the Live Device List, double-tap a device to display the Block List. See page 4-10.

2. Double-tap the desired block tag. This displays the Block Menu.

3. From the Block Menu, double-tap the desired parameter group.

NOTE

The block mode must be in the appropriate state to accept parameter changes. Typically, the mode is MAN or OOS.

Parameter Functionality

Shaded areas indicate values that cannot be changed. You can edit only the resource, transducer, and I/O blocks. You can open and view all other blocks, however, you cannot edit them.

Fieldbus Functionality

4-15

Modified Parameters

An asterisk (*) will appear next to a modified parameter that has not yet been sent to the device.

Display Parameters

To display the parameters for fieldbus devi ces:

1. Display the Live Devi ce List; see page 4-9.

2. Double-tap a device.

3. Double-tap the desired block, or the appropriate item from a device menu.

4. Double-tap the desired parameter group. The parameters and their current values are displayed. Shaded areas indicate values that cannot be edited.

Change and Send Parameter Data

To change the values for parameters:

1. Display the parameters for the device.

2. Double-tap the desired parameter.

3. Change the value for the parameter. (Tap HELP to view a description of the parameter.)

4. Tap OK to acknowledge the parameter change. Repeat these steps for other parameters as necessary. A “*” symbol indicates a parameter has been edited.

5. Tap SEND to commit your changes to the connected device.

Display Device Status

To display device status:

1. Display the Live Devi ce List; see page 4-9.

2. Double-tap a device.

3. Double-tap the desired block.

4. Double-tap Status. Status parameters are displayed.

4-16

Fieldbus Functionality

Run Methods

Select submenu choices as appropriate. Different devices have different methods associated with them, and the selections on these menus vary accordingly.

To run methods:

1. Display the Live Device List; see page 4-9.

2. Double-tap a device.

3. Double-tap the desired block (typically, methods are run in the transducer block).

4. Double-tap Methods.

5. Double-tap the type of method you want to run, for example, calibration, diagnostic, or sensor trim. Follow the navigation screens to run the method.

Display the Details menu

To view the device details:

1. Display the Live Device List; see page 4-9.

2. Double-tap a device.

3. Double-tap Advanced.

4. Double-tap Detail. Double-tap one of the following options:

NOTE

The physical device tag and address of a device will be read-only when, at a minimum, any of the following hosts/linking devices are detected on the segment: Rosemount 3420, DeltaV, Ovation, Allen-Bradl ey, Honeywell Experion PKS, or Yokogawa Stardom. To change the device tag or address, use the host system or remove the device from the segment and connect it directly to the 375 Field Communicator.

Fieldbus Functionality

4-17

• Ph ysical Device Tag designates a field device’s identity in the system.

• Address is the data link layer node address of the device. The host control system has the ability to assign an address to a device when it is connected to a segment. The following should be taken into consideration when assigning device addresses:

• Valid device addresses for fieldbus devices are 20 through 247 with the exception of the addresses between V(FUN) and V(FUN) + V(NUN)-1 as defined for the 375; see “Configuring the Fieldbus Application” on page 4-21. These parameters are available in the Polling menu.

• Addresses between 16 and 19 are usually reserved for host systems. A device should not be assigned in this address range.

• Addresses below 16 are not available.

• Addresses between 248 and 251 are temporary addresses. Devices without a tag or address will appear on the segment at these addresses.

• Addresses between 252 to 255 are reserved for visitors, such as the 375 Field Communicator.

• Device ID is the unique number identifier for each device. It is set by the device manufacturer and cannot be changed.

• De vice Revision is the manufacturer revision number. It is used by an interface device to locate the device description file for the resource and cannot be changed.

5. Using the SIP keyboard, enter the new information.

6. Tap OK.

4-18

Fieldbus Functionality

Display Network Settings

To view the network parameters for the device or segment:

1. Display the Live Device List; see page 4-9.

2. Double-tap a device.

3. Double-tap Advanced.

4. Double-tap Network Manag ement.

5. Double-tap the desired label to view the values. Tap the SAVE button to save this as a text file. Transfer

this file to a PC using the Easy Upgrade Programming Utility. The file appears in the User Data tab.

Change the I/O Block Schedule

NOTE

You cannot schedule I/O blocks when, at a minimum, any of the following hosts/linking devices are detected on the segment: Rosemount 3420, DeltaV, Ovation, Allen-Bradley, Honeywell Experion PKS, or Yokogawa Stardom. To schedule I/O blocks, use the host system or remove the device from the segment and connect it directly to the 375 Field Communicator.

To change the schedule:

1. Display the Live Device List; see page 4-9.

2. Double-tap a device.

3. Double-tap Advanced.

4. Double-tap Schedule. The I/O Block Schedule window appears. Changing the I/O Block Schedule would typically be done on the bench (not connected to a control system) when you want to execute an I/O block to verify that the outputs of the block are being computed correctly.

5. Using the drop-down menu, select the appropriate MacroCycle.

6. Tap the checkbox next to the I/O blocks that are to be scheduled.

7. Tap OK. This will schedule the blocks and set the mode on these blocks to Auto.

8. After reading the note, tap OK to acknowledge that the I/O blocks were successfully scheduled.

Fieldbus Functionality

4-19

Instantiate Blocks

The Instantiate Block menu lets you add function and transducer blocks to a connected device. This menu item appears only if the fieldbus device contains instantiable block types. After a block has been instantiated, the view displays the new block. The Actual mode of the new instantiated block will be set to OOS.

To instantiate a block:

1. Display the Live Devi ce List; see page 4-9.

2. Double-tap a device.

3. Double-tap Advanced.

4. Double-tap Instantiate Block.

5. Tap the type of block that you want to add to the device.

6. Tap OK to add the block to the device. Tap CANCEL to exit the screen without adding a block.

7. When the warning message appears, tap YES to instantiate the block, or NO to cancel the operation.

NOTE

You cannot instantiate or delete blocks when, at a minimum, any of the following hosts/linking devices are detected on the segment: Rosemount 3420, DeltaV, Ovation, Allen-Bradley, Honeywell Experion PKS, or Yokogawa Stardom. To instantiate or delete blocks, use the host system or remove the device from the segment and connect it directly to the 375 Field Communicator.

Delete Instantiated Blocks

The Delete Block menu lets you delete instantiated blocks from a fieldbus device; you cannot delete permanent blocks. You can delete only one instantiated block at a time, and the Actual mode in the device must be set to OOS. If the Delete Block menu item is selected and no blocks have been instantiated in the device, an error message will appear. After a block has been deleted, the screen is refreshed and it does not display the deleted block.

4-20

Fieldbus Functionality

To delete an instantiated block:

1. Display the Live Device List; see page 4-9.

2. Double-tap a device.

3. Double-tap Advanced.

4. Double-tap Delete Block.

5. Tap the block that you want to delete from the device.

6. Tap OK.

7. When the warning me ssage appears, tap YES to delete the block, or NO to cancel the operation.

NOTE

Some devices restart after a block has been instantiated or deleted, causing a loss in communication between the 375 Field Communicator and the device. After the device and 375 Field Communicator resume communication, the Live Device List is displayed.

Displaying Graphics

The FOUNDATION Fieldbus Application offers graphical views of device data by using the enhanced Electronic Device Description Language (EDDL) technology. Device data can be presented as images, charts, and graphs. These options are displayed as items in the Online menu and its submenus. The placement of the Graphics options in the menus varies from device to device because it is determined by the device manufacturer.

Fieldbus Functionality

CONFIGURING THE FIELDBUS APPLICATION

4-21

Changing the Fieldbus Polling Addresses

Changing the Slot Time

Polling is a method of determining which devices are present on a network. The V(FUN) is the first unpolled node address. V(NUN) is the number of unpolled node addresses. The addresses between V(FUN) and V(FUN)+V(NUN)-1 are not polled. The default value for V(FUN) is 200 and the default value for V(NUN) is zero. Narrowing the range of devices being polled provides a quicker Live Device List refresh.

The DeltaV System Polling checkbox instructs the 375 Field Communicator to use the same polling scheme as DeltaV.

To change the polling addresses:

1. From the Fieldbus Application main menu, double-tap Utility.

2. Double-tap Polling.

3. Enter addresses in the V(FUN) and V(NUN) fields and tap OK.

From the Fieldbus Utility menu, double-tap Link Settings. Select the default Slot Time of eight to allow the devices to be seen on the Live Device List. It may be necessary to change the Slot Time to 16 to view older devices on the 375 Field Communicator Live Device List.

4-22

Fieldbus Functionality

Viewing Available Device Descriptions

The Available Device Descriptions List menu lets you view all the device descriptions in the 375 Field Communicator. Fieldbus device descriptions enable the 375 Field Communicator to recognize and configure fieldbus devices.

To view the fi eldbus device descriptions installed on the 375 Field Communicator:

1. On the Fieldbus Application main menu, double-tap Utility.

2. Double-tap Available Device Description List. The manufacturer names of the installed device descriptions are listed.

3. Double-tap the desired device manufacturer to expand the list. The models available for the manufacturer are listed.

4. Double-tap the desired device model. The device revisions available for the selected model are listed. One of the following icons will appear next to each device description to indicate its status:

- A tested device description can be used with the

system software version in the 375 Field Communicator.

- An incompatible device description cannot be used with the system software version in the 375 Field Communicator.

Fieldbus Functionality

4-23

RUNNING FIELDBUS DIAGNOSTICS

DC V oltage a n d Noise Level Measurement

The Fieldbus Diagnostics menu lets you run diagnostics for troubleshooting fieldbus networks and devices. You can check the DC voltage, the noise level at low frequencies, and the signal level and communication status. The selected tests are automatically repeated and the test results are updated in the Diagnostics Results screen.

To view the values associated with the status indicato rs or the possible causes of the values, run the diagnostic test, highlight the test on the Diagnostics Results screen, and tap HELP.

The DC voltage test displays the amount of DC voltage on a segment, and the noise level test displays the amount of noise on the segment. The word Limit is displayed if the DC voltage measurement is out of the

-37 V to 37 V range or if the noise level measurement is greater than 2.2 V.

These tests display the measurement value, measurement unit, and one of the status indicators listed below.

OK - The value is within the acceptable range. High - The value is greater than the normal values. Low - The value is lower than the normal values. The

noise level test will not display this status indicator. Error - There is an error in the measurement or within

the 375 Field Communicator.

Signal Level Measurement

The signal level test determines if a 375 Field Communicator can receive signals from devices on a segment. To measure the fieldbus signa l level, make sure an LAS is on the segment. Up to 16 different devices are checked. The word Limit is displayed if the signal level value is greater than 1.3 V.

4-24

This test displays the device address, measurement value, measurement unit, and one of the status indicators listed below.

- All signal responses from the device were

received by the 375 Field Communicator. ! - Some signal responses from the device were

received by the 375 Field Communicator. Signal responses may be missed due to noise on the segment.

X - No signal responses from the device were received by the 375 Field Communicator. This may be caused by noise on the segment.

Error - The measurement value is less than 75 mV or there is an error within the 375 Field Communicator.

Figure 4-8. Fieldbus Diagnostics screen examples

Fieldbus Functionality

DISCONNECTING FROM A FIELDBUS DEVICE

Prior to disconnecting or turning off the 375 Field Communicator, be sure to check the following items:

• Verify methods are complete.

• Resolve any un-sent data to the device.

USER’S MANUAL

February 2009

375 FIELD COMMUNICATOR

SECTION 5TROUBLESHOOTING

OVERVIEW This section provides basic troubleshooting techniques

for the 375 Field Communicator. Below are methods for troubleshooting networks that are

experiencing problems communicating between a field device and the 375 Field Communicator.

Troubleshooting Suggestions

Answer the questions below and use the troubleshooting tables in this section before calling Technical Support personnel.

• Does the control system have HART or fieldbus communication capabilities?

• Is it configured to communicate HART or fieldbus currently? Is it reporting communication problems? If not, stop communications on the control system and re-test communication with the 375 Field Communicator.

• Is th ere a barrier installed?

• Is th e barrier capable of passing along the signal?

www.fieldcommunicator.com

5-2

Troubleshooting

HART Loops

Verify the HART loop current and voltage on the field device. Almost all field devices need at least 4 mA and 12V DC to operate properly.

If there are multiple field devices on a multidrop loop, set the 375 Field Communicator to Poll by Address. See “Changing the HART Polling Option” on page 3-17 for more information on polling options.

Inspecting the loop wiring can often reveal problems. The shield is normally grounded at one end only, which is usually the control system.

Verify the loop has a minimum of 250 ohms resistance. If there is not an external resistor, then, normally, the total resistance is the resistance of the process-indicating device monitoring the loop. Check the manuals for the process-indicating device to determine its loop resistance. If the resistance of the process-indicating device is unknown, it can be determined by knowing the current flow in the loop and the voltage across the process-indicating device.

The resistance can be calculated using the formula, Resistance = Voltage / Current. The 375 Field Communicator can be used to measure the voltage; see “DC Voltage Measurement (HART Terminals)” on page 3-22.

Troubleshooting

5-3

Sample values

Loop Current Flow Minimum voltage for 250 ohms. 4 mA 1 Volt

8 mA 2 Volts 12 mA 3 Volts 16 mA 4 Volts 20 mA 5 Volts

If the voltage across the process-indicating device is greater than the value listed for a given current flow, the device has at least 250 ohms of internal resistance. If the voltage is less than the value listed in the table for the given current flow, more resistance needs to be added to the loop.

If an oscilloscope is available, use it to look for noise on the loop. Use a scope with differential mode capability or a battery powered/isolated scope to avoid grounding one side of the loop. Noise with a frequency of 500 Hz to 10,000 Hz is of particular interest, as this represents frequencies near the HART frequencies of 1200 and 2200 Hz.

5-4 Table 5-1. Troubleshooting table for the HART protocol

Symptom Possible Causes Solution

Intermittent communication Insufficient loop

No communication with field device.

Control system is communicating HART, but the 375 is not communicating properly.

A HART device appears at multiple addresses.

current and voltage at the field device terminals.

Noise on the field loop. Noise or signal

distortion from the control system (i.e., noise from the power supply powering the field devices or front end analog circuitry inside the control system may be distorting the HART signal.

Poor wiring. Check wiring terminations and exposed

Insufficient loop resistance at the HART frequencies.

Insufficient loop current and voltage at the field device terminals.

Field device may be set to a HART address other than zero (multidrop mode).

HART communication is being prevented by the control system.

The incorrect polling addresses may be used.

Verify there is at least 4 mA and 12V DC at the field device terminals; see “DC Voltag e Measurement (HART Terminals)” on page 3-22.

signal wire for damage. Add an additional 250 ohm resistor in series

in the loop. Place the leads across the resistor and verify if communication has been restored.

Verify there is at least 4 mA and 12V DC at the field device terminals; “DC Voltag e Measurement (HART Terminals)” on page 3-22.

Change the polling mode to Poll by Address.

Stop HART communications on the control system and verify if communication between the field devices and the communicator is restored.

Change the addresses being polled. See “Changing the HART Polling Option” on page 3-17.

Troubleshooting

Troubleshooting Table 5-2. Troubleshooting table for the fieldbus protocol

Symptom Possible Causes Solution

No communication with field device.

Connection to a segment in a bench configuration and the Live Device List remains blank (even the 375 Field Communicator does not appear).

Unable to change the address of a device.

The 375 does not remain the LAS on a segment.

The 375 is connected to a segment with DeltaV, and the device on the same segment is being commissioned using DeltaV.

This issue is caused by the speed at which certain LAS-enabled devices are attempting to run the segment.

The 375 is unable to change the address of a device that is currently the LAS.

A host takes over as the LAS.

A backup LAS takes over as the LAS. The lower the address and Slot Time of the device, the more likely this will occur.

The 375 is unable to communicate with this device until you go offline and then back online.

Establish communication by putting the 375 on the segment first and then adding one or more devices. By putting the 375 on first, it will remain the LAS and control the communication.

Establish communication by putting the 375 on the segment first and then adding one or more devices. By putting the 375 on first, it will remain the LAS and allow the address change.

When a host is established on a segment, it will take over as the LAS. No action is required.

See “Changing the Slot Time” on page4-21.

5-5

5-6

Troubleshooting

ERROR AND STATUS MESSAGES

General Error Messages Description

License file check failed - error code x. Please contact service center to resolve this problem. Press OK to turn off. (Where x indicates the test that failed.)

Communication circuit is not responding. CDC is not responding during the power-up. Warning: System incompatibility detected - error

code x. Start Listen for PC and use the Easy Upgrade Programming Utility to resolve this, turn off your 375 and contact service center to resolve this. (Where x is an error code indicating what the incompatibility detected was or related errors.)

Installation file is corrupt - error code x. Please call service center to resolve this problem. Press OK to turn off.

The 375 needs to update its software. Battery power must be more than 20% to allow for this update. You must recharge the 375 battery, switch to a spare battery pack, or use external power. Press OK to turn off.

This 375 is not licensed for HART. Your 375 is not licensed for HART

This 375 is not licensed for FOUNDATION Fieldbus. Your 375 is not licensed for FOUNDATION

This 375 is not licensed for Enhanced Graphics. Your 375 is not licensed for the Graphics

The 375 does not detect a System Card. Please make sure your System Card is properly installed in its slot. Press OK to turn off.

License file check failed during power- up.

Hardware version or operating system is not compatible.

The installation is corrupt.

This message occurs when on battery power , and the battery percentage is less than 20% before attempting to launch program loader.

functionality. Contact your sales representative for information on adding this functionality.

fieldbus functionality. Contact your sales representative for information on adding this functionality.

functionality. Contact your sales representative for information on adding this functionality.

This message occurs when the System Card is not properly installed in its slot or the System Card is missing.

Troubleshooting

HART Error Messages Description

Hart Application Error... “hc.ddl device revision x not found.”...Refresh System Card...See User's Manual and Programming Interface for details.

Hart Application Error... “registry failure”...Reinstall System Files...See User's Manual for details.

Voltage is currently detected at the Fieldbus Terminals. Reconfigure unit and try again.

CDC Error...“failure while switching to HART”...Reinstall System Files...See User’s Manual for details.

DD Error…"tokenizer mismatch"…DD version

<manufacture name, device name, dev . rev. #, and DD rev. #>; HART application <ver sion x.y>; HART

app version x.y...Reinstall DD…See Programming Interface for details.

DD Error…"linker mismatch"...DD version x.y; HART app version x.y...Reinstall DD…See Programming Interface for details.

DD Error…"developed-to mismatch"…DD version

<manufacture name, device name, dev . rev. #, and DD rev. #>; HART application <version x.y> …See

Programming Interface for solution. Warning: this DD is untested with the current Hart

App ver <manufacture name, device name, dev.

rev. #, and DD rev. #>…you may experience unexpected or

inappropriate results…See Programming Interface for details on DD updates…Do you want to accept these risks and proceed?

DD Error…"tested-to sequence mismatch"…DD version <manufacture name, device name, dev.

rev. #, and DD rev. #>; HART application <ver sion x.y>; HART

app version x.y…See Programming Interface for solution.

DD Error…"developed-to mismatch"...DD version

<manufacture name, device name, dev . rev. #, and DD rev. #>; HART application <ver sion x.y>; HART

app version x.y...Reinstall DD…See Programming Interface for details

DD Error…"DD header file corrupted"...Reinstall Device version <manufacture name, device name,

dev. rev. #, and DD rev. #>; HART application <version x.y> …See

Programming Interface for details. Hart Application Error…"data compression dll is

missing"…Reinstall System Files...See User's Manual for details.

An expected version of hc.ddl is not found.

The information describing the location of the DDs is not found in the registry.

The HART Application finds voltage on the fieldbus connector during initialization and during reconnection to a device.

The HART Application fails to put the CDC in HART mode for talking to a HART device.

The version of the tokenizer used to tokenize the DD is not what the HART Application expects.

The version of the linker used to link the DD is not what the HART Application expects.

The DD was developed and tested using a later HART Application revision.

The DD was not tested and verified with the HART Application.

The DD was tested with a previous version, but not with this version of the HART Application.

The DD was developed using a later HART Application revision.

There is a check sum error in the DD header file.

The data compression component cannot be located.

5-7

5-8

Troubleshooting

Hart Application Error…"data compression dll is corrupted"…Reinstall System Files...See User's Manual for details.

Memory Error…"data compression memory allocation error"…Restart Unit...See User's Manual for further details.

DD Error…"failure while opening DD"...Reinstall Device Type x Device Rev x dd Rev x…See Programming Interface for details.

DD Error…"failure while uncompressing DD"...Reinstall Device revision <manufacture name, device name, dev. rev. #, and DD rev. #> …See Programming Interface for details.

Communication Error…"unexpected return value"…See User's Manual for solution.

DD Error…"DD file corrupted"...Reinstall Device revision <manufacture name, device name, dev.

rev. #, and DD rev. #>…See the Programming Int erface for

details.

Forward Compatibility Blocked…DD Device Type x Device Rev x dd Rev x cannot be used in forward compatibility mode…x… Do you wish to proceed in forward compatibility mode?

DD Not Installed…DD device type x device rev x is not installed on the System Card…See Programming Interface for details on DD updates…Do you wish to proceed in forward compatibility mode?

Do you want to ignore this message while communicating with this device?

Required functionality is missing from the data compression component.

The HART Application is unable to acquire enough memory for data compression.

The system cannot open the DD.

An error is detected while uncompressing the DD.

An unexpected value is returned from a function call.

The checksum of the DD does not match with that described in the DD header file. This error may be corrected by connecting the 375 Field Communicator to the Easy Upgrade Programming Utility and running a Refresh operation.

The HART Application attempts to use a DD to run in forward compatibility mode and finds that the DD is prevented from running in forward compatibility mode.

The DD for the connected device is not in the

375. If your System Card is licensed for Easy Upgrade, you can add DDs to your 375 from the Easy Upgrade Programming Utility .

The HART Application lets you ignore some response code warning messages, such as Update Failure, while communicating with a device. The next time you communicate with the device, this message will appear.

Troubleshooting

Fieldbus Error Messages Description

DDP Error 1: Unable to load DD. Press OK to return to Block List

There has been a loss of communication with one or more devices on the segment. Press OK to return to the Live Device List.

The 375 has been disconnected from the segment. Press RETRY to attempt to reconnect to the segment. Press CANCEL to return to the FF app main menu. Press EXIT to exit the FF App.

SM ERROR: FAILED RESPONDER IDENTIFY There is a problem sustaining

FFLIB: Incompatible DD Static Description The device description (DD) does not match

FBLIB: Device Upload aborted Communications with a device has timed out.

FMS OTHER: Parameter Check The parameter being entered is invalid for

FMS OTHER: Exceeds Parameter Limits The parameter being entered is outside t he

FMS OTHER: Wrong Mode For Request The block is in the wrong mode to accept the

SM ERROR: REMOTE ERROR INVALID STATE An attempt to change the address of the

DD Error…"DD file corrupted"...Reinstall Device revision <manufacture name, device name, dev.

rev. #, and DD rev. #>…See the Programming Interface for

details.

Using the Easy Upgrade Programming Utility, check to see if this DD is available to load into your 375. If not, contact the device manufacturer.

Check connection to fieldbus devices.

Verify that the 375 lead set is still securely connected to the FF Segment and tap RETRY.

communications with the device. Contact 375 Field Communicator Technical Support personnel.

the actual device correctly. Use the Easy Upgrade Programming Utility to see if a new DD is available for that device. Contact 375 Field Communicator Technical Support personnel.

This should normally not happen, unless a host was selected. Contact 375 Field Communicator Technical Support personnel.

this device. Check with the device supplier. Make sure the value entered is valid for that specific device parameter.

range of valid values for the device parameter. Check with the device supplier. Make sure the value entered is in the correct range for that device parameter.

parameter change being requested. See “Change Modes” on page 4-13 for information on how to change block modes.

device serving as the LAS on the segment is being made. Changing the device address of the LAS is not recommended.

5-9

5-10

Troubleshooting

REQUIRED INFORMATION FOR TECHNICAL ASSISTANCE

Before you call Technical Support personnel, have the User’s Manual for the field device and a detailed description of the issue, including the following information (if applicable):

• M anufacturer and model of control system (if applicable).

• 375 Field Communicator system software revision.

• Manufacturer ID number or name and model revision of field device (as displayed on the 375 Field Communicator, exact spelling if possible.)

• Does communication work when certain devices or processes are not running?

• What is the total cable length run from the termination panel to the field device?

• What is the message on the 375 Field Communicator when attempting to communicate with a field device (e.g., device not found)?

• What is the serial number of the 375 Field Communicator having the communication issue?

• Is the device in burst mode?

• What is the loop impedance in the device loop? (resistance value)

• Can the 375 Field Communicator talk to the field device?

• Can AMS Device Manager talk to the field device?

• Is the field device address set to "0"?

• Is there more than one field device on the loop?

• Is there another master (primary or secondary) on the loop? (i.e., control system, multiplexer , etc.)

• Does the control system support HART or fieldbus communications?

• If a HART multiplexer is being used, what is the manufacturer and model?

• What is the approximate field device loop length? (length of the wire)

• Are there any error messages being displayed?

• What task is being performed when the communication problem occurs?

• Are you having communication problems with multiple field devices?

Contacting Technical Support Personnel

Contact your supplier or go to http://www.fieldcommunicator.com/supp.htm for Technical Support contact information.

USER’S MANUAL

February 2009

375 FIELD COMMUNICATOR

APPENDIX AREFERENCE INFORMATION

PROCESSOR AND MEMORY SPECIFICATIONS

Microprocessor Memory

80 MHz, max 133 MHz Hitachi® SH3

Internal Flash

32 MB

System Card

1 GB Secure Digital card

RAM

32 MB

Expansion Module

32 MB (or higher) Secure Digital card

www.fieldcommunicator.com

A-2

Reference Information

PHYSICAL SPECIFICATIONS

CONNECTION SPECIFICATIONS

Weight

Approximately 2 lb. (950 grams) includes battery

Display

1/4 VGA (240 by 320 pixels) monochrome touch screen with a viewing area of approximately 6 cm by 8 cm (10 cm diagonal)

Base glass thickness 1.1 mm anti-glare Dimensions 92 mm x 71.1 mm x 10 mm

Keypad

Twenty-five keys including four action keys, twelve alphanumeric keys, four alternate functionality keys, On/Off key , and four navigation (arrow) keys; membrane design with tactile feedback

Enclosure rating

IP51 (front)

Shock

Passes the 1-meter drop test onto concrete

Power supply/charger

Green 6-pin mini din (male) plug

NiMH Adapter Cable

Green 6-pin mini din (female) plug on one end Black 4-pin mini din (male) plug on the other end

HART and Fieldbus Communication Terminals

Three 4mm banana plugs (one common terminal to both HART and FOUNDATION fieldbus.)

Personal computer

IrDA port supporting up to 115 Kb/s ± 15 degrees recommended maximum angle from center line 18 in. recommended maximum distance from center line

Reference Information

A-3

POWER SUPPLY/ CHARGER SPECIFICATIONS

Voltage

6.0 V 100-240 VAC, 50/60Hz,

US/UK/EU connection types included

Technical data

Input voltage Input current 750 mA max.

Standby current 20 mA max. Input fuse type TES 2A 250 V Timelag Output voltage 1 0 - 8.3 VDC Output current 1 1000 mA max. Output voltage 2 0 - 9 VDC Output current 2 1400 mA max. Output power rating 20 W Operating temperature Storage temperature

Measurements [L x B x H] 112 mm x 51.5 mm x 29.5 mm Total Mass 240 g.

100 - 240 VAC ±10%

0°C - +40°C

-20

°C -+80°C

A-4

Reference Information

BATTERY SPECIFICATIONS

TEMPERATURE SPECIFICATIONS

Nickel-Metal Hydride (NiMH) Battery Pack

Five rechargeable NiMH AA batteries, not serviceable Black 4-pin mini din (female) jack

NiMH Battery Pack operating time

5 hours when backlight is set to highest setting 9 hours when backlight is off 43 hours when using stand-by without backlight

Lithium Ion (Li-Ion) Power Module

Two rechargeable Li-Ion cells, not serviceable Green 6-pin mini din (female) jack

Li-Ion Power Module operating time

12 or more hours when backlight is set to highest setting 21 or more hours when backlight is off 72 or more hours when using stand-by without backlight

375 Field Communicator Use

-10°C to +50°C (+14°F to +122°F)

0% to 95%RH (non-condensing) for 0°C to +50°C (+32°F to +122°F)

375 Field Communicator storage without battery

-20°C to +60°C (-4°F to +140°F)

375 battery charge

5°C to +35°C (+41°F to +95°F)

375 battery storage

-20°C to +55°C (-4°F to +131°F)

(less than one month)

It is recommended to use a location at room temperature or cooler when storing a battery for an extended time.

AMS 375 Field Communicator User's Manual Manuals & Guides

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS

SECTION 1INTRODUCTION

USING THIS MANUAL

SECTION 2LEARNING THE BASICS

OVERVIEW This section provides instructions on basic features and

SAFETY MESSAGES

PRODUCT OVERVIEW AND PRECAUTIONS

375 Field Communicator Components

Working in an Intrinsically Safe (IS) Area

BATTERY AND POWER SUPPLY/ CHARGER OVERVIEW

Guidelines and Precautions

Check the Charge Remaining

Charge the Battery

Maintaining the Battery Life and Performance

INSTALLING THE SYSTEM CARD AND THE BATTERY

REMOVING THE BATTERY AND THE SYSTEM CARD

STARTING UP AND SHUTTING DOWN

Starting the 375 Field Communicator

Entering Stand- By

Shutting Down the 375 Field Communicator

BASIC FEATURES AND FUNCTIONS

Using the Keypad

Using the Touch Screen

THE 375 MAIN MENU

Starting the HART Application

Starting the Fieldbus Application

Running the Settings Menu

Communicating with a PC

Using ScratchPad

MANAGING STORAGE

Types of Storage

Free Memory on a System Card

MAINTENANCE

Running a Self Test

Calibrating It is not necessary or possible to calibrate the 375 Field

WASTE DISPOSAL

HAZARDOUS SUBSTANCES

SECTION 3 HART FUNCTIONALITY

OVERVIEW This section provides instruction on basic HART

SAFETY MESSAGES

BASIC FEATURES AND FUNCTIONS

USING A FAST KEY SEQUENCE

STARTING THE HART APPLICATION

WORKING OFFLINE

Creating New Configurations

Opening Saved Configurations

WORKING ONLINE

Connecting to a HART Loop

Displaying the Online Menu

Saving an Online Device Configuration

Displaying the Device Setup Submenu

Displaying Graphics

USING HOT KEYS

Setting up Hot Key Options

Executing a Hot Key Option

Removing a Hot Key Option

Removing all Hot Key Options

CONFIGURING THE HART APPLICATION

Changing the HART Polling Option

Changing Ignored Status Messages

Changing the Menu Title

Storage Cleanup

Viewing Available Device Descriptions

Simulating an Online Connection to a HART Device

RUNNING HART DIAGNOSTICS

DC Voltage Measurement (HART Terminals)

DISCONNECTING FROM A HART DEVICE

SECTION 4FIELDBUS FUNCTIONALITY

OVERVIEW This section provides instruction on basic fieldbus

SAFETY MESSAGES

BASIC FEATURES AND FUNCTIONS

Link Active Scheduler (LAS)

LAS Hierarchy When a 375 Field Communicator is connected to a live

Device Interoperability

ST_REV ST_REV is a block parameter that increments each time

STARTING THE FIELDBUS APPLICATION