Rockwell Automation 1734-IT2I User Manual

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POINT I/O Thermocouple and RTD Modules

Catalog Numbers 1734-IR2, 1734-IR2E and 1734-IT2I User Manual

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

Important User Information

Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 Automation sales office or online at http://literature.rockwellautomation.com

available from your local Rockwell

) describes some important differences between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

Identifies information that is critical for successful application and understanding of the product.

Identifies information about practices or circumstances that can lead to: personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.

Labels may be on or inside the equipment, such as a drive or motor, to alert people that dangerous voltage may be present.

Labels may be on or inside the equipment, such as a drive or motor, to alert people that surfaces may reach dangerous temperatures.

Allen-Bradley, Rockwell Automation, POINT I/O, RSLinx, RSLogix 5000, and TechConnect are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

Publication 1734-UM004F-EN-E - December 2012

Summary of Changes

About POINT I/O Modules

Important User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

New and Revised Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Change Bars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Preface

Who Should Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Related Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Common Techniques Used in this Manual. . . . . . . . . . . . . . . . . . . . . . 10

Chapter 1

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Module Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Selecting a Module Input Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Communicating with Your Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Default Data Map for the Thermocouple Input Module

(catalog number 1734-IT2I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Default Data Map for the RTD Input Module

(catalog numbers 1734-IR2, and 1734-IR2E). . . . . . . . . . . . . . . . . 13

Data Format (1734-IT2I, 1734-IR2, and 1734-IR2E modules) . . 14

Use Module Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Overrange Alarm (1734-IT2I, 1734-IR2, and

1734-IR2E modules) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Underrange Alarm (1734-IT2I, 1734-IR2, and

1734-IR2E modules) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Level Alarms (1734-IT2I, 1734-IR2, and

1734-IR2E modules) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Open-wire Alarm (1734-IT2I, 1734-IR2, and

1734-IR2E modules) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Cold Junction Compensation (1734-IT2I module) . . . . . . . . . . . . . . . 16

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chapter 2

Install the Module

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Preventing Electrostatic Discharge. . . . . . . . . . . . . . . . . . . . . . . . . 17

Environment and Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Install the Mounting Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Install an I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Install the Removable Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . 21

Remove a Mounting Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Wire the Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Chapter 3

Configure Your Module

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Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Configuration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Commissioning a Node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

iv Table of Contents

Using the RSNetWorx Commissioning Tool. . . . . . . . . . . . . . . . . 26

Use Sequential Auto Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Use Third Party Configuration Software . . . . . . . . . . . . . . . . . . . . 27

Add the Adapter to Your Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Add I/O Modules to Your Network POINTBus. . . . . . . . . . . . . 28

Set the Thermocouple Input Module Parameters Using RSNetWorx 30

Configure Your Thermocouple Input Module. . . . . . . . . . . . . . . . . . . 32

Basic Set-up Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Advanced Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Advanced Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Set the RTD Input Module Parameters Using RSNetWorx . . . . . . . . 37

Configure Your RTD Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Basic Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Advanced Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Basic Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Advanced Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Check I/O Status and View the EDS File . . . . . . . . . . . . . . . . . . . . . . 44

1734-IT2I module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1734-IR2 and 1734-IR2E modules. . . . . . . . . . . . . . . . . . . . . . . . . 45

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Calibrate Your Module

Troubleshoot the Module

Configure Modules in RSLogix 5000 Software

Chapter 4

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

When and How to Calibrate Your Module . . . . . . . . . . . . . . . . . . . . . 47

Calibration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Tools and Equipment Required to Calibrate

Your Thermocouple Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Calibrate the Thermocouple Input Module . . . . . . . . . . . . . . . . . . . . . 48

Access Calibration Parameters in RSNetWorx . . . . . . . . . . . . . . . 49

Input (mV) Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Cold Junction Compensation Calibration . . . . . . . . . . . . . . . . . . . 53

Tools and Equipment Required to Calibrate

Your RTD Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Calibrate the RTD Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Chapter 5

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Interpret the Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Appendix A

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

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Calculate Absolute Accuracy and Accuracy Drift

Index

Table of Contents v

Understanding Data, Connection, and

Communication Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Configure Your Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Use the Help Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Working with Dialogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Work with Dialogs for RTD Modules . . . . . . . . . . . . . . . . . . . . . . 65

Work with Dialogs for Thermocouple Modules . . . . . . . . . . . . . . 70

Appendix B

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Calculate with Formulas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Absolute Accuracy Formula . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Accuracy Drift Formula. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

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vi Table of Contents

Notes:

Publication 1734-UM004F-EN-E - December 2012

Summary of Changes

This publication contains new and revised information not in the last release.

New and Revised Information

See the table for a summary of the major changes in this manual.

Revised to include Chapter

New Appendix on Absolute Accuracy and Accuracy Drift calculation Appendix B

Change Bars

Change bars (as shown with this paragraph) show the areas in this manual that differ from previous editions and indicate the addition of new or revised information.

vii Publication 1734-UM004F-EN-E - December 2012

viii Summary of Changes

Notes:

Publication 1734-UM004F-EN-E - December 2012

Preface

Read this preface to familiarize yourself with the rest of the manual. It provides information concerning:

• who should use this manual

• the purpose of this manual

• related documentation

• conventions used in this manual

Who Should Use this Manual

Purpose of this Manual

You must be able to use your selected configuration software to set up and calibrate these modules. You must have the capability to download and use files.

We assume you know how to do this in this manual. If you do not, refer to your software user manuals or online help before attempting to use these modules.

This manual describes how to install, configure and troubleshoot your Thermocouple and Resistance Termperature Detector (RTD) modules.

For Information About See

About POINT I/O Modules Chapter 1 Install the Module Chapter 2 Configure Your Module Chapter 3 Calibrate Your Module Chapter 4 Troubleshoot the Module Chapter 5 Configure Modules in RSLogix 5000 Software Appendix A Calculate Absolute Accuracy and Accuracy Drift Appendix B

Common Techniques Used in this Manual

Information about how to install 1734-VHSC5 and 1734-VHSC24, Series C POINT I/O 5V DC and 24V DC Very High Speed Counter Modules.

Information about how to install 1734-TB and -TBS POINT I/O Wiring Base Assemblies.

Information about how to install 1734-TB3 and -TB3S POINT I/O Wiring Base Assemblies.

The following conventions are used throughout this manual:

• Bulleted lists such as this one provide information, not procedural steps.

• Numbered lists provide sequential steps or hierarchical information.

• Italic type is used for emphasis.

Publication 1734-UM004F-EN-E - December 2012

About POINT I/O Modules

Chapter

Overview

Module Features

Read this chapter to familiarize yourself with configurable features on the 1734-IT2I, 1734-IR2, and 1734-IR2E modules. The following table lists where to find specific information in this chapter.

Topic Page

Module Features 1 Selecting a Module Input Type 2 Communicating with Your Module 2 Use Module Alarms 5 Cold Junction Compensation (1734-IT2I module) 6 Chapter Summary 6

The module features include:

Input type

•Sensor type

• Data formats

• Preset temperature selection

•Fault mode

• Overrange alarms

•Underrange alarms

• Fault alarms

You must use your programming software, like Rockwell Automation RSNetWorx, to configure these features. See this chapter for a brief description of each module feature. Use the online help included with your programming software to perform specific configuration. You can find the EDS files for this module at www.ab.com/networks/eds/.

1 Publication 1734-UM004F-EN-E - December 2012

2 About POINT I/O Modules

Selecting a Module Input Type

The 1734-IT2I module consists of two isolated millivolt inputs (+70 mV). Configure the module to do the linearization necessary for thermocouple inputs. See the table for a list of supported thermocouple input types.

Supported Sensor Types – Thermocouple

mV (default) -70...+70 mV B 572...3272 °F (300...1800 °C) C 32...4199 °F (0...2315 °C) E -418...+1832 °F (-250...+1000 °C) J -346...+2192 °F (-210...+1200 °C) K -418...+2502 °F (-250...+1372 °C) N -418...+2372 °F (-250...+1300 °C) R 32...3214 °F (0...1768 °C) S 32...3214 °F (0...1768 °C) T -418...+752 °F (-250...+400 °C)

The 1734-IR2 consists of two RTD inputs (0...600 W). Configure the module to do the linearization necessary for RTD inputs. See the table for a list of supported input types.

Communicating with Your Module

Supportted Sensor Types – RTD

100 Pt α = 0.00385 Euro -328...1598 °F (-200...+870 °C) 200 Pt α = 0.00385 Euro -328...1166 °F (-200...+630 °C) 100 Pt α = 0.003916 U.S. -328...1166 °F (-200...+630 °C) 200 Pt α = 0.003916 U.S. -328...1166 °F (-200...+630 °C) 10 Cu α = 0.00427 -328...500 °F (-200...+260 °C) 100 Ni α = 0.00618 -76...+482 °F (-60...+250 °C) 120 Ni α = 0.00618 -76...+482 °F (-60...+250 °C) 120 Ni α = 0.00672 -76...+482 °F (-60...+250 °C)

The 1734-IR2E consists of two RTD inputs (0...200 W). Configure the module to do the linearization necessary for RTD inputs. See the table for a list of supported input types.

I/O messages are sent to (consumed) and received from (produced) the POINT I/O modules. These messages are mapped into the processor’s memory. The Thermocouple input module produces 8 bytes of input data (scanner Rx) and fault status data. It does not consume I/O data (scanner Tx).

Publication 1734-UM004F-EN-E - December 2012

The RTD input module produces 6 bytes of input data (scanner Rx) and fault status data. It does not consume I/O data (scanner Tx).

Default Data Map for the Thermocouple Input Module (catalog number 1734-IT2I)

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Produces (scanner Rx) Input Channel 0 - High Byte Input Channel 0 - Low Byte

Input Channel 1 - High Byte Input Channel 1 - Low Byte Status Byte for Channel 1 Status Byte for Channel 0 OR UR HHA LLA HA LA CM CF OR UR HHA LLA HA LA CM CF OR UR Cold Junction Temperature

(Selectable: Channel 0, Channel 1, or Average of both Channel 0 and 1) Consumes (scanner Tx) No consumed data Where: OR = Overrange; 0 = no error, 1 = fault (value went above selected range)

UR = Underrange; 0 = no error, 1 = fault (value went below selected range) HHA = High/High Alarm; 0 = no error, 1 = fault (value went below setpoint LLA = Low/Low Alarm; 0 = no error, 1 = fault (value went below setpoint HA = High Alarm; 0 = no error, 1 = fault (value went below setpoint LA = Low Alarm; 0 = no error, 1 = fault (value went below setpoint) CM = Calibration Mode; 0 = normal, 1 = calibration mode CF = Channel Fault status; 0 = no error, 1 = fault

About POINT I/O Modules 3

Default Data Map for the RTD Input Module (catalog numbers 1734-IR2, and 1734-IR2E)

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Produces (scanner Rx) Input Channel 0 - High Byte Input Channel 0 - Low Byte

Input Channel 1 - High Byte Input Channel 1 - Low Byte Status Byte for Channel 1 Status Byte for Channel 0

OR UR HHA LLA HA LA CM CF OR UR HHA LLA HA LA CM CF Consumes (scanner Tx) No consumed data Where: OR = Overrange; 0 = no error, 1 = fault (value went above selected range)

UR = Underrange; 0 = no error, 1 = fault (value went below selected range)

HHA = High/High Alarm; 0 = no error, 1 = fault (value went below setpoint)

LLA = Low/Low Alarm; 0 = no error, 1 = fault (value went below setpoint)

HA = High Alarm; 0 = no error, 1 = fault (value went below setpoint)

LA = Low Alarm; 0 = no error, 1 = fault (value went below setpoint)

CM = Calibration Mode; 0 = normal, 1 = calibration mode

CF = Channel Fault status; 0 = no error, 1 = fault

Publication 1734-UM004F-EN-E - December 2012

4 About POINT I/O Modules

Data Format (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

You must choose a module data format in your user program. Select the format. These are four predefined scales and one custom scale.

Data Formats

mV Custom Scale

⋅ C Celsius Predefined Scale ⋅ F Fahrenheit ⋅ KKelvin ⋅ R Rankine

°C, F, °R, and °K returns data in tenths of a degree (250 implies 25.0 °).

For the 1734-IR2E, (250 implies 2.50

⋅ C, ⋅ F, ⋅ R, and ⋅ K returns data in hundreths of a degree

⋅ ). If scaling is set to 10,000 and 20,000, the module returns

hundredths of an ohm (12345 implies 123.45).

For the 1734-IR2, if using ohms, the default data returned is in tenths of ohms (1234 implies 123.4 Ω).

For the 1734-IT2, if using mV, the default data is returned in hundredths of a mV, or tens of a μV (3500 implies 35.00

⋅ ).

If the input scale is custom scale, you can specify scaling points as shown in the table.

1734-IT2I Thermocouple Input Module 1734-IR2 RTD Input Module Thermocouple

Ty pe

mV 0 mV 70mV Ohms 100 Ω 500 Ω Type B 212 °F (100 °C) 1832 °F (1000 °C) 100 Ω Ptα = 0.00385 Euro 32 °F (0 °C) 932 °F (500 °C) Type C 32 °F (0 °C) 4199 °F (2315 °C) 200 Ω Ptα = 0.00385 Euro 32 °F (0 °C) 932 °F (500 °C) Type E 32 °F (0 °C) 1832 °F (1000 °C) 100 Ω Ptα = 0.003916 U.S. 32 °F (0 °C) 932 °F (500 °C) Type J 32 °F (0 °C) 1832 °F (1000 °C) 200 Ω Ptα = 0.003916 U.S. 32 °F (0 °C) 932 °F (500 °C) Type K 32 °F (0 °C) 1832 °F (1000 °C) 10 Ω Cuα = 0.00427 32 °F (0 °C) 482 °F (250 °C)

Low Scaling Endpoint

High Scaling Endpoint

RTD Type Low Scaling

Endpoint

High Scaling Endpoint

Type N 32 °F (0 °C) 1832 °F (1000 °C) 100 Ω Niα = 0.00618 32 °F (0 °C) 482 °F (250 °C) Type R 32 °F (0 °C) 1832 °F (1000 °C) 120 Ω Niα = 0.00672 32 °F (0 °C) 482 °F (250 °C) Type S 32 °F (0 °C) 1832 °F (1000 °C) 120 Ω Niα = 0.00618 32 °F (0 °C) 482 °F (250 °C) Type T 32 °F (0 °C) 212 °F (100 °C)

Publication 1734-UM004F-EN-E - December 2012

1734-IR2E RTD Input Module

About POINT I/O Modules 5

Use Module Alarms

RTD Type Low Scaling

Endpoint

O hms 100 Ω 200 Ω 100 Ω Ptα = 0.00385 Euro 32 °F (0 °C) 572 °F (300 °C)

POINT I/O modules are capable of generating the following alarms.

•Overrange

•Underrange

• Level (low-low, low, high, high-high)

• Cold-junction Compensation (CJC) Fault (1734-IT2 only)

•Open-wire Detection

High Scaling Endpoint

Overrange Alarm (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

The channel overrange alarm is set if the input is greater than the maximum temperature (thermocouple or RTD range dependent), millivolt (+75 mV) or resistance (600 Ω) range value, or above the maximum range of the thermocouple or RTD.

The cold junction compensator has its own overrange alarm. If the CJC temperature goes above 70 ⋅ C, the overrange alarm is set.

Underrange Alarm (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

The channel underrange alarm is set if the input is less than the minimum temperature (thermocouple or RTD range dependent), millivolt (-75 mV) or resistance (10 Ω) range value, or below the minimum range of the thermocouple or RTD.

The cold junction compensator has its own underrange alarm. If the CJC temperature goes below 0 ⋅ C, the underrange alarm is set.

Level Alarms (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

The following level alarms are available.

•Low

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6 About POINT I/O Modules

• Low-Low

•High

•High-High

When the channel input goes below a low alarm or above a high alarm, a bit is set in the data table. All Alarm Status bits can be read individually or by reading the Channel Status Byte (Bits 2...5 for channel 0; bits 10...13 for channel 1).

You can configure each channel alarm individually.

Open-wire Alarm (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

The module has the ability to check for a broken or detached wire. In any mode, if a broken/detached lead is detected, the data value is forced to maximum and the overrange alarm is set. Once the alarm is issued, it remains active as long as the input signal is faulted.

Cold Junction Compensation (1734-IT2I module)

Chapter Summary

When using thermocouples, cold junction compensation is required at the termination of the thermocouple wire. Accomplish a cold junction in the following ways:

• Enter an estimated temperature.

• Use a 1734-TBCJC mounting base (recommended).

• Use external cold junction compensators.

Entering an estimated temperature is the least accurate way for CJC compensation. Using the compensation built-into the 1734-TBCJC provides the easiest and most accurate way.

An open CJC causes the CJC input to point to the maximum temperature value for the selected input type. This causes an alarm to be set. Once the alarm is issued, it remains active as long as the input signal is faulted (above maximum).

In this chapter you were given an overview of the 1734 family of modules. The next chapter walks you through installing your module.

Publication 1734-UM004F-EN-E - December 2012

Install the Module

ATTENTION

Chapter

Overview

Read this chapter for information about how to install and wire RTD and thermocouple modules. The following table lists where to find specific information in this chapter.

Topic Page

Install the Mounting Base 8 Install an I/O Module 10 Install the Removable Terminal Block 12 Remove a Mounting Base 13 Wire the Modules 14 Chapter Summary 16

The RTD module uses a 1734-TB or 1734-TBS mounting base assembly with 1734-RTB removable terminal block (RTB) for RTD wiring.

The thermocouple module uses a 1734-TBCJC mounting base assembly with 1734-CJCRTB removable terminal block with built-in cold junction compensation for thermocouple inputs.

Preventing Electrostatic Discharge

This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment:

• Touch a grounded object to discharge potential static.

• Wear an approved grounding wriststrap.

• Do not touch connectors or pins on component boards.

• Do not touch circuit components inside the equipment.

• If available, use a static-safe workstation.

• When not in use, store the equipment in appropriate static-safe packaging.

7 Publication 1734-UM004F-EN-E - December 2012

8 Install the Module

ATTENTION

Environment and Enclosure

This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664-1), at altitudes up to 2000 m (6562 ft) without derating.

This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance.

This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.

Install the Mounting Base

See NEMA Standards publication 250 and IEC publication 60529, as applicable, for explanations of the degrees of protection provided by different types of enclosure. Also, see the appropriate sections in this publication, as well as the Allen-Bradley publication 1770-4.1 Automation Wiring and Grounding Guidelines, for additional installation requirements pertaining to this equipment.

The wiring base assembly (1734-TB or 1734-TBS) consists of the following:

• Mounting base, catalog number 1734-MB

• Removable terminal block, catalog number 1734-RTB or 1734-RTBS

The wiring base assembly (1734-TBCJC) consists of the following:

• Mounting base, catalog number 1734-MB

• Removable terminal block, catalog number 1734-RTBCJC

, Industrial

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Install the Module 9

ATTENTION

Therm

ocou

ple

Input

Module

Status

Network

Status

4 IT

Removable terminal block (1734-RTBCJC)

Insertable I/O module

RTB Removal Handle

Slide-in writable label

Interlocking side pieces

Mechanical keying (orange)

Module wiring diagram

DIN rail locking screw (orange)

Module locking mechanism

Mounting base

46008

POINT I/O is grounded through the DIN rail to chassis ground. Use zinc-plated, yellow-chromated steel DIN rail to assure proper grounding. The use of DIN rail materials (such as aluminum and plastic) that can corrode, oxidize, or are poor conductors can result in improper or intermittent grounding.

Secure DIN rail to mounting surface approximately every 200 mm (7.8 in.).

You can install the assembly, or just the mounting base.

Follow this procedure to install the mounting base/wiring base assembly on the DIN rail.

1. Position the mounting base (wiring base) assembly vertically above the installed units (adapter, power supply, or existing module).

2. Slide the mounting base down so that the interlocking side pieces engage the adjacent module or adapter.

Do not discard the end cap shipped with an adapter or communication interface. Use this end cap to cover the exposed interconnections on the last mounting base on the DIN rail. Failure to do so could result in equipment damage or injury from electric shock.

1734-IT2I shown

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10 Install the Module

46003

WARNING

3. Press firmly to seat the mounting base on the DIN rail. The mounting base snaps into place.

Module Status

Network Status

ODE:

24VDC Source Output

1734 OB4E

4. Repeat this procedure for the next mounting base assembly.

Install an I/O Module

Install the module before or after base installation. Make sure you correctly keyed the mounting base before installing the module into the mounting base. In addition, make sure you positioned the mounting base locking screw horizontal, referenced to the base.

When you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations.

Be sure that power is removed or the area is nonhazardous before proceeding. Repeated electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts may create electrical resistance that can affect module operation.

1. Using a bladed screwdriver, rotate the keyswitch on the mounting base clockwise till the number required for the type of module you are installing aligns with the notch in the base.

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Install the Module 11

Turn the keyswitch to align the number with the notch.

Notch

(position 6 shown)

Make sure the DIN rail locking screw is in the horizontal position.

1734-RTD - Position 6 1734-IT2I - Position 6

2. Make certain the DIN rail locking screw is in the horizontal position, noting that you cannot insert the module if the locking mechanism is unlocked.

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12 Install the Module

24VD

Source

Output

Module

Status

Netw

ork

Status

1734

OB4E

NODE:

44012

3. Insert the module straight down into the mounting base and press to secure, locking the module into place.

Install the Removable Terminal Block

A removable terminal block comes with your mounting base assembly. To remove, pull up on the RTB handle to remove the base and replace, as necessary, without removing any of the wiring. To reinsert the removable terminal block, proceed as follows.

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Install the Module 13

WARNING

Hook the RTB end into the mounting base end, and rotate until it locks into place.

WARNING

1. Insert the RTB end opposite the handle into the base unit, which has a

curved section that engages with the mounting base.

2. Rotate the terminal block into the mounting base until it locks itself in place.

3. If an I/O module is installed, snap the RTB handle into place on the module.

Remove a Mounting Base

When you connect or disconnect the removable terminal block (RTB) with field-side power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.

To remove a mounting base, you must remove any installed module, and remove the removable terminal block (if wired).

When you connect or disconnect the removable terminal block (RTB) with field-side power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations.

Be sure that power is removed or the area is nonhazardous before proceeding.

1. Unlatch the RTB handle on the I/O module.

2. Pull on the RTB handle to remove the removable terminal block.

3. Press in on the module lock on the top of the module, and pull up on

the I/O module to remove from the base.

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14 Install the Module

WARNING

43923

Module status

Network status

Status of input 0

Status of input 1

Shield

4. Remove the module to the right of the base you are removing, noting that the interlocking portion of the base sits under the adjacent module.

5. Use a small-bladed screwdriver to rotate the orange DIN rail locking screw on the mounting base to a vertical position. releasing the locking mechanism.

6. Lift the mounting base straight up to remove.

Wire the Modules

To wire the thermocouple input modules, refer to the figures.

If you connect or disconnect wiring while the field-side power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.

1734-IT2I Module Overview

Module Status

Network Status

NODE:

Thermocouple

Input

1734

IT2

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Wiring Diagram

Shield

Thermocouple 0

Thermocouple 1

0+ = Input channel 0 High 0- = Input channel 0 Low 1+ = Input channel 1 High 1- = Input channel 1 Low Shld = Shield

46000

Module Status

Network Status

Status of Input 0

Status of Input 1

Input 0/A HIgh Input

Input 0/B Low Input

RET 0

Shield

Input 1/A High Input

Input 1/B Low Input

Shield

RET 1

Input Channel Power Limits

Channel Input High Input Low Shield

0+ 4 3 0- 5 1+ 6 3 1- 7 Power is provided by the internal power bus.

Install the Module 15

To wire RTD modules, refer to the figures.

1734-IR2, 1734-IR2E Module Overview

Module Status

Network Status

NODE:

RTD

Input

1734

IR2

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16 Install the Module

In 0/A In 1/A

In 1/BIn 0/B

RET 0 RET 1

ShieldShield

3-wire RTD

In = Input channel RET = Sensor return Shield = Sensor cable shield

2-wire RTD

When using 2-wire RTDs, Insert 1 Ω resistor IN/B to RET.

1 Ω resistor

Wiring Diagram

Input Channel Power Limits

Channel High Signal (+) Low Signal (-) Return Shield

In 0/A 0 4 6 In 0/B 2 In 1.A 1 5 7

Chapter Summary

In 1/B 3

This chapter explained how to install and wire the modules. The next chapter describes how to configure your POINT I/O Thermocouple and RTD Modules.

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Configure Your Module

Chapter

Overview

Configuration Overview

This chapter describes how to configure your thermocouple input module with RSNetWorx.

Topic Page

Configuration Overview 17 Commissioning a Node 17 Add the Adapter to Your Network 19 Set the Thermocouple Input Module Parameters

Using RSNetWorx Configure Your Thermocouple Input Module 24 Set the RTD Input Module Parameters Using

RSNetWorx Configure Your RTD Input Module 31 Check I/O Status and View the EDS File 36 Chapter Summary 37

Configuring POINT I/O modules is as easy as point and click. RSNetWorx lets you identify the network and configure the I/O modules with Electronic Data Sheet (EDS) files - just point to the field and click your selection.

To obtain EDS files for use in configuration, go to

http://www.ab.com/networks/eds

In this chapter, you learn how to do the following.

• Add the adapter to the system.

• Commission individual modules in the system.

• Set the individual modules parameters.

Commissioning a Node

17 Publication 1734-UM004F-EN-E - December 2012

Here are the methods for commissioning nodes.

• Use the RSNetWorx commissioning pull-down dialog.

• Use the Sequential Auto Addressing feature.

• Use third-party configuration software.

18 Configure Your Module

IMPORTANT

ATTENTION

Using the RSNetWorx Commissioning Tool

Use the RSNetWorx commissioning tool to commission devices (set the node address and the data rate parameters) that are:

• connected to a DeviceNet network.

• connected via a point-to-point connection.

The node commissioning tool works through RSLinx; RSNetWorx does not have to be online when performing the operation.

Before you can add any device to a DeviceNet network, it must be commissioned. This means that a node address and a data rate must be programmed into the device. Some devices are precommissioned, meaning a node address (usually set to 63) and a data rate (usually set to 500 Kbps) are programmed into the device at the factory prior to shipment. Other devices muse be commissioned in the field. Once a device is commissioned and attached to a network, you can use the RSNetWorx for DeviceNet node commissioning tool to edit the node address and data rate that were set previously.

Exercise caution while editing node addresses when on a network. When you apply a new node address, it immediately overwrites the node address data in the device currently specified. If you decide to reassign node addresses, you should first determine the order you use so that all the devices still have unique node addresses when you are finished.

For example, if two of the devices on your network are a photoelectric sensor and a hand controller, and you accidentally change the node address of the hand controller to be the same as that of the photoelectric sensor, then the photoelectric sensor no longer has a unique address, which means that it is not be able to provide data to the scanner. If you cannot access a device because you have used its node address for another device, you have to remove it from the network, recommission it, then reinstall it on the network.

Do not change the data rate of devices while they are connected to a network. Erratic operation may result. We recommend that if you need to change the data rate of a device, you should remove it from the network, establish a point-to-point connection between the PC, which hosts the RSNetWorx for DeviceNet software, and the target device, recommission it, and then, reconnect it to the network.

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Configure Your Module 19

IMPORTANT

Use Sequential Auto Addressing

Sequential Auto Addressing (SAA) reassigns the node address of every module to the right of the one you select. Each module changes its node address to one greater than its neighbor.

Make sure the node address of the selected module is the desired value before issuing the SAA command.

When this command is set, each module to the right gets a new address one greater than its neighbor. The addressing ripples through a line of POINT I/O modules, assigning a node number to each module installed in a mounting base.

Perform this procedure to Auto Address a line of POINT I/O modules.

1. Set the address of the first module you want to address.

Add the Adapter to Your Network

2. Set the Auto Address command to Sequential Address.

3. All modules in line reset with new sequential addresses.

An example is if 5 POINT I/O modules are in a line, and the address of the first module is 10. After the Sequential Address command is sent to the first module, the node address of the line is: 10, 11, 12, 13, and 14.

Use Third Party Configuration Software

When using third party configuration software, simply load the EDS files into the software and follow the designer’s instructions.

You can use the RSNetWorx for DeviceNet software, or some other configuration tool for DeviceNet, to configure your module. If the EDS files are not in your software, you can get them at

http://www.ab.com/networks/eds/

You can configure the module while it is:

• online.

• offline.

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20 Configure Your Module

1. Click here to expand the list of

communication adapters.

2. Double-click here to choose the

scanner. You can also click and drag the scanner name onto the network. Make sure you choose the 1734-ADN POINT I/O Scanner.

The scanner appears on the network.

1. Click here to expand the list of

Specialty modules.

2. Double-click the catalog number

to choose the module. You can also click and drag the module name onto the network.

This chapter shows configuration in the online mode. Configuration dialogs appear similar in both modes. The primary difference is that if you make changes offline, you must go online before the configuration changes take effect.

Perform this procedure to add a communication device.

1. Start the RSNetWorx for DeviceNet software.

2. Add the communication adapter as shown in the figure.

In this case, the chosen device was a 1770-KFD RS232 Interface.

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Add I/O Modules to Your Network POINTBus

After you add the communication device, you must add the POINT I/O modules connected to the scanner on the POINTBus.

Add modules as shown in the figure.

Configure Your Module 21

1. Go to the Tools pull-down menu.

2. Select Node Commissioning.

3. Click Browse.

4. Select the module to change.

5. The node commissioning dialog

returns. It displays the node number and data rate.

6. Change the node number and

Apply, noting that the dialog then identifies the new setting.

7. Click Close to continue.

IMPORTANT

The out-of-the-box node setting for 1734 modules is 63. You can change the setting by using the node commissioning tool. The node commissioning tool is available either online or offline.

If you commission a node online, you must power down your system before the change takes place.

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22 Configure Your Module

IMPORTANT

1. Right-click the module.

2. Click Properties to configure.

You can also left-click the module or name.

These are the tabs you click to view the options.

Set the Thermocouple Input

After adding the module to the network, you must configure the modules for use.

Module Parameters Using RSNetWorx

Configure the modules as shown in the figure.

You see a dialog with a series of tabs. Each tab provides options view or edit. The tabs are shown in the following figure.

This chapter shows configuration in the online mode. Changes set in this mode take effect when you download to the individual module.

Publication 1734-UM004F-EN-E - December 2012

Refer to these dialogs for an explanation of features.

The module name appears here.

Type a description here.

The module address appears here. (This field is read-only.)

This dialog also shows the module’s device identity. These fields are read-only.

At any point, you can click here to finish changing configuration parameters.

IMPORTANT: If configuration

changes are made in offline mode they do not take effect until the system goes online.

Click the Device parameters tab to get to the dialog for setting the parameters.

This dialog appears after clicking the Device parameters tab. If you want the existing parameters uploaded from the module, select Upload. The following dialog then shows the existing parameters set on the module.

Use this pull-down menu to edit or view the parameters. Available choices are:

POINTBus

Status

Configuration

Configure Your Module 23

Setting Parameters

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24 Configure Your Module

IMPORTANT

Configure Your Thermocouple Input Module

Configuration can be divided into two categories: Basic Set-up Parameters and Advanced Setup Parameters.

Basic Set-up Parameters

The basic parameters you need to set for the thermocouple module consist of:

• Temperature units - Select how the input is linearized:

– mV/Custom Scale (default) – Celsius – Fahrenheit – Kelvin – Rankine

• Thermocouple type - Choose the type of sensor for this input. The module performs the linearization of the selected type.

– mV (No Linearization) – Type B – Type C – Type E – Type J – Type K – Type N – Type R – Type S – Type T

• Cold Junction Enable - This bit enables or disables the cold junction linearization. If enabled, the proper cold junction compensation value is applied to the selected thermocouple. If disabled, the data (CJ Temperature) is still available but not applied to the input. If the Cold Junction Compensation Removable Terminal Block is not available, this parameter should be set to disabled. A cold junction value can be added using the Cold Junction Offset parameter.

• Cold Junction Produced Data - Selects how the Cold Junction Data is returned in the Produced IO message. The last two bytes of the produced message contain one of the following.

– None (zeros) – Channel 0 (default) – Channel 1 - Average of both channels

The Over/Under Range status is also included in the last two bytes, along with the cold junction value.

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Configure Your Module 25

Advanced Setup Parameters

Advanced parameters you can set for the thermocouple module consist of:

• Notch filter - Select the Notch Filter for the analog to digital converter. At higher frequencies, faster sample rates are possible

– 50 Hz – 60 Hz (default) – 100 Hz – 120 Hz – 200 Hz – 240 Hz – 300 Hz – 400 Hz – 480 Hz

If the filter value is changed, the module may require calibration to meet specifications.

• Digital filter - A digital filter is available on this module. You set a time constant which is used in the equation:

Yn = Yn-1 + (dt / (dt + TA) * (Xn-Yn-1) Where: Yn = new data

Yn-1 = old data dt = Channel Update Rate in milliseconds T

= digital filter time constant

Xn = present unfiltered data

TA can be an integer from 0 to 10,000 ms. If set to 0, the filter is disabled.

• Cold Junction Offset - If you do not use a 1734-RTBCJC removable terminal block, enter an estimate for the junction temperature here. Enter the value in hundreths of degrees Celsius, even if another scale is selected (2500 implies 25.00 °C).

• Enable alarms latch - If enabled, alarms for this channel latch FAULTED until a Latch Reset command is received.

The alarms effected are:

– Input Status – Low and High level – Range

• Disable alarms - If Alarms are Disabled, all alarms for this channel show No FAULT. This is useful for unused channels.

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26 Configure Your Module

To configure your module, select Configuration and modify the parameters as desired for your application.

When complete, download to your module by clicking the Download to Device button. You can download each change as you make it using “Single,” or download all your changes using “All.” If you press the “Apply” button, only the selected parameter is downloaded to the module.

Click here when finished.

• Level alarms - low-low, low, high, and high-high - any value from

-32,768...+32,767 can be entered.

• Scaling - Values returned when input is at low scale value or high scale value. The low and high scale points are different for each sensor input:

Thermocouple Scaling limits

Thermocouple Ty pe

mV 0 mV 70 mV Type B 212 °F (100 °C) 1832 °F (1000 °C) Type C 32 °F (0 °C) 4199 °F (2315 °C) Type E 32 °F (0 °C) 1832 °F (1000 °C) Type J 32 °F (0 °C) 1832 °F (1000 °C) Type K 32 °F (0 °C) 1832 °F (1000 °C) Type N 32 °F (0 °C) 1832 °F (1000 °C) Type R 32 °F (0 °C) 1832 °F (1000 °C)

Low Scaling Endpoint

High Scaling Endpoint

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Type S 32 °F (0 °C) 1832 °F (1000 °C) Type T 32 °F (0 °C) 212 °F (100 °C)

To configure your module, select Configuration as shown in the figure.

Configure a module

Use the procedures in the figures that show basic setup and advanced setup, noting that you complete steps 1-5 during basic setup, then continue with steps 6-10 during advanced setup.

1. Select the

temperature scale.

2. Then select the type

of thermocouple: B C E J K N R S T or mV

3. Select cold junction

compensation if desired.

4. Select how the cold

junction data is returned in the produced I/O message. Select None, channel 0, channel 1, or the average of both channels.

5. Download to the device.

Configure Your Module 27

Basic Setup

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28 Configure Your Module

6. Select the notch filter

desired (60 Hz to 480 Hz).

7. Select the digital filter

(select as necessary)

8. Enable or disable the

latching alarms.

9. Enable or disable the

alarms.

10. Apply and download to

the device.

Advanced Setup

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Configure Your Module 29

IMPORTANT

1. Right-click the module.

2. Click Properties to

configure.

You can also left click the module or name.

Click these tabs to view the options.

Set the RTD Input Module Parameters Using RSNetWorx

After adding the module to the network, you must configure the modules for use.

This chapter shows configuration in the online mode. Changes set in this mode take effect when you download to the individual module.

Configure the modules as shown.

You see a dialog with a series of tabs. Each tab provides options to view or edit. Refer to the figure to see the tabs.

Refer to these dialogs for an explanation of features.

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30 Configure Your Module

The module name appears here.

Type a description here.

The module address appears here. (This field is read-only.)

This dialog also shows the module’s device identity. These fields are read-only.

At any point, click here to finish changing configuration parameters.

If configuration changes are made in offlin mode, they do not take effect until the system goes online.

Click the Device parameters tab to get to the dialog for setting the parameters.

This dialog appears after you click the Device parameters tab. If you want the existing parameters uploaded from the module, select Upload. The following dialog then shows the existing parameters set on the module.

Use this pull-down menu to edit or view the parameters. Available choices are:

POINTBus

Status

Configuration

Setting Parameters

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Configure Your Module 31

Configure Your RTD Input Module

Configuration is divided into basic and advanced parameters.

Basic Setup Parameters

The basic parameters you need to set for the RTD module consist of:

• Temperature units – Use the Temperature Scale parameter to select a predefined scale or a custom scale. Custom Scale allows you to enter the scaling endpoint values. If using Ohms RTD Type, ignore this parameter. Predefined Scales include: Celsius(C), Fahrenheit(F), Kelvin(K), and Rankine(R). Scaling Endpoints for Custom Scale (low & high):

RTD Module Scaling Limits

RTD Type Low Scaling

Endpoint

High Scaling Endpoint

10 Ω Cuα = 0.00427 32 °F (0 °C) 482 °F (250 °C) 100 Ω Niα = 0.00618 32 °F (0 °C) 482 °F (250 °C) 120 Ω Niα = 0.00672 32 °F (0 °C) 482 °F (250 °C) 120 Ω Niα = 0.00618 32 °F (0 °C) 482 °F (250 °C)

RTD Type (1734-IR2E) Low Scaling

Endpoint

Ohms 100 Ω 200 Ω 100 Ω Ptα = 0.00385 Euro 32 °F (0 °C) 572 °F (300 °C)

High Scaling Endpoint

• RTD type – Select the RTD type that the input uses. Valid types are shown in the table.

• Copper RTD Offset – If using the copper RTD, this is the error of the Copper RTD (10 250 in hundredths of Ohms (such as 361 = 3.61

Ω Cu427) in Ohms. Enter a value between -250 and

Ω). This value is added

to the input reading before linearization.

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32 Configure Your Module

Advanced Setup Parameters

Advanced parameters you can set for the RTD module consist of:

• Notch filter – Select the Notch Filter for the analog to digital converter. At higher frequencies, faster sample rates are possible

– 50 Hz – 60 Hz (default) – 100 Hz – 120 Hz – 200 Hz – 240 Hz – 300 Hz – 400 Hz – 480 Hz

If the filter value is changed, the module may require calibration to meet specifications.

• Digital filter – A digital filter is available on this module. You set a time constant that is used in the equation:

Yn = Yn-1 + (dt / (dt + TA) * (Xn-Yn-1) Where: Yn = new data

Yn-1 = old data dt = Channel Update Rate in milliseconds T

= digital filter time constant

Xn = present unfiltered data

TA can be an integer from 0 to 10,000 ms. If set to 0, the filter is disabled.

• Enable alarms latch – If enabled, alarms for this channel latch FAULTED until a Latch Reset command is received.

The alarms effected are:

– Input Status – Low and High level – Range

• Disable alarms – If Alarms are Disabled, all alarms for this channel show No FAULT. This is useful for unused channels.

• Level alarms – low-low, low, high, and high-high.

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Configure Your Module 33

1. To configure your RTD module,

select Configuration and modify the parameters as desired for your application.

2. When complete, download to

your module by clicking the Download to Device button. You can download each change as you make it using Single, or download all your changes using All. If you press the Apply button, only the selected parameter downloads to the module.

3. Click here when finished.

• Scaling – Values returned when input is at low scale value or high scale value. The low and high scale points are different for each sensor input:

RTD Module Scaling Limits

RTD Type Low Scaling

Endpoint

High Scaling Endpoint

O hms 100 Ω 500 Ω 100 Ω Pt α = 0.00385 Euro 32 °F (0 °C) 932 °F (500 °C) 200 Ω Pt α = 0.00385 Euro 32 °F (0 °C) 932 °F (500 °C) 100 Ω Pt α = 0.003916 U.S. 32 °F (0 °C) 932 °F (500 °C) 200 Ω Pt α = 0.003916 U.S. 32 °F (0 °C) 932 °F (500 °C) 10 Ω Cu α = 0.00427 32 °F (0 °C) 482 °F (250 °C) 100 Ω Ni α = 0.00618 32 °F (0 °C) 482 °F (250 °C) 120 Ω Ni α = 0.00672 32 °F (0 °C) 482 °F (250 °C) 120 Ω Ni α = 0.00618 32 °F (0 °C) 482 °F (250 °C)

RTD Type (1734-IR2E) Low Scaling

Endpoint

High Scaling Endpoint

O hms 100 Ω 200 Ω 100 Ω Pt α = 0.00385 Euro 32 °F (0 °C) 572 °F (300 °C)

To configure your RTD module, select Configuration as shown in the figure.

Use the procedures in the figures that show basic setup and advanced setup, noting that you complete steps 1 and 2 during basic setup, then continue with steps 3…13 during advanced setup.

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34 Configure Your Module

1. Select the type of RTD

you are using for channel 0. Repeat for channel 1.

2. Then select the scale

for channel 0. Repeat for channel 1.

This is the error of Copper RTD (10

Cu427) in O hms. Enter value between

-250 and 250 in hundredths of Ohms (such as 361 = 3.61

Ω). If you are using a

copper RTD, this value is added to the input reading before linearization.

Basic Setup

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3. Select the digital filter desired.

(Range is 0...10.000 ms.)

6. Select the notch filter.

4. Enable or disable the latching

alarms.

5. Enable or disable the alarms.

7. Apply and download to the device.

Configure Your Module 35

Advanced Setup

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36 Configure Your Module

1. Click the I/O Defaults tab to

display the default characteristics for this module.

This dialog shows the input/output defaults for the four modes: Strobe Polled Change of state and Cyclic

3. Click View File to view

the actual EDS file (shown).

2. Click the EDS File tab to display the

statistics of the EDS file used to configure this module.

You can view the actual EDS file or edit the file.

Check I/O Status and View the EDS File

View the I/O defaults setup and the EDS file by clicking the appropriate tab.

1734-IT2I module

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1734-IR2 and 1734-IR2E modules

3. Click View File to

view the actual EDS file (shown).

2. Click the EDS File tab to display

the statistics of the EDS file used to configure this module.

1. Click the I/O Defaults tab to display

the default characteristics for this module.

This dialog shows the input/output defaults for the four modes: Strobe Polled Change of state and Cyclic

Configure Your Module 37

Chapter Summary

This chapter explained how to configure the modules. The next chapter walks you through how to calibrate your POINT I/O Thermocouple and RTD Modules.

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38 Configure Your Module

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Calibrate Your Module

Chapter

Overview

When and How to Calibrate

Use this chapter to calibrate the thermocouple/mV module or the RTD input module. Refer to the table for a summary of what is covered.

Your module is shipped to you already calibrated. If a calibration check is required, the module must be in a POINT I/O system.

Your Module

Perform module calibration periodically, based on your application. Module calibration may also be required to remove module error due to aging of components in your system.

Task Pag e

When and How to Calibrate Your Module 39 Calibration Method 39 Tools and Equipment Required to Calibrate Your Thermocouple Module 39 Calibrate the Thermocouple Input Module 40 Input (mV) Calibration 42 Cold Junction Compensation Calibration 45 Tools and Equipment Required to Calibrate Your RTD Module 48 Calibrate the RTD Input Module 48

Calibration Method

Tools and Equipment

Perform calibration through the I/O configuration software, such as RSNetWorx and EDS files. If the EDS files are not in your software, get them online at www.ab.com/networks/eds/

To calibrate your thermocouple module, you need the following tools and equipment.

Required to Calibrate Your Thermocouple Module

39 Publication 1734-UM004F-EN-E - December 2012

Tool or Equipment Description

Precision Resistors High precision resistors:

1000 Ω, 0.05%, 5 ppm/ 3000 Ω, 0.05%, 5 ppm/

or Calibrated resistor Decade Box, 0.05%

Precision Voltage Source +100 mV, 1 mV resolution - accuracy +

3 μV or better

40 Calibrate Your Module

IMPORTANT

01 01 01 01 010101

DeviceNet Input

Precision Voltage Source

Channel 0 Connect to 4 and 5

Channel 1 Connect to 6 and 7

1734-IT2I

1734-PDN

Shield

Thermocouple 0

Thermocouple 1

Precision Voltage Source

1734-RTB CJC

1734-RTB

Precision resistors

0 -

46001

45999

46011

Calibrate the Thermocouple

To calibrate your thermocouple input module, connect the module in a DeviceNet system similar to that shown in the figure.

Input Module

Module Connection

Apply power to the power supply and module for at least 10 minutes before calibrating the module.

Delete all I/O connections by removing the module from its master's scan list and inhibiting the module in RSLogix. When there is no connection present the Network Status Indicator should flash green.

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Calibrate Your Module 41

ATTENTION

Click Device Parameters to view the parameters.

Access Calibration Parameters in RSNetWorx

1. Double-click the icon of the module to be calibrated to bring up the General Parameter dialog.

2. Click Device parameters.

The EDS editor may ask you if you want to upload the configuration from the device.

3. If you do not see the EDS editor dialog, proceed with the next step; otherwise, from the EDS editor dialog, click Upload.

The dialog box layout varies depending on the version of RSNetWorx software you are using.

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42 Calibrate Your Module

This is the Groups pull-down.

IMPORTANT

4. From the Device Parameters dialog, select Calibration at the Groups pull-down.

Input (mV) Calibration

Before calibrating the module you need to select the sensor type and download it to the module.

Perform the following procedure from the Device Parameters dialog.

Apply power to the power supply and module for at least 10 minutes before calibrating the module.

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Calibrate Your Module 43

For input calibration, choose: Input Channel 0, Input Channel 1, or Both Channels.

1. From the Configuration tab, set the Thermocouple Type to mV (no

linearization) for the channel(s) to be calibrated and download to the module.

2. Open the Device Parameter tab and click Calibration Channel Select to bring up your channel selections.

3. Select a channel (0 or 1), or select Both Channels.

4. Click Download to Device.

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44 Calibrate Your Module

IMPORTANT

Select Accept Low Input and download to the device.

5. Click Calibration Command, and select Begin Calibration.

6. Click the Download to Device button.

The status indicator of a channel in calibration mode flashes green. The status indicator of a channel not in calibration turns off.

7. Apply 0.00 mV to the input, referring to the wiring diagram in this section.

Calibration in millivolts allows the sensor calibration to be independent of CJC. The cold junction compensation is not active for the mV input regardless of the CJC setting. The module must have the exact voltage at its input terminals. Thermocouple wire or a voltage source that simulates a TC voltage should not be used.

8. Click Accept Low Input.

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9. Click the Download to Device button. The status indicator(s) for the channel(s) being calibrated blink(s) green.

10. Set the source to 70 mV.

Select Cold Junction 0, Cold Junction 1, or Both Cold Junction.

Module terminal voltage must be exact.

11. Click Accept High Input.

12. Click the Download to Device button.

Calibrate Your Module 45

Input calibration is now complete. The status indicator should be solid green (normal) or blinking red (no load). The channel can now be configured to the type of input desired for normal operation. If an error occurred during calibration, select Abort Calibration in the Calibration Command parameter to restore the previous calibration values, and try again.

Cold Junction Compensation Calibration

Perform this procedure from the Device Parameters dialog.

1. Click Calibration Channel Select and select one channel, or both

channels at once.

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46 Calibrate Your Module

Click calibration command and select Begin CJC calibration. Then download to the module.

2. Click Calibration Command and select Begin CJC Calibration.

3. Click the Download to Device button.

4. Using a 1734-RTB removable terminal block, apply 1000 Ω to the

selected CJC channel, referring to the wiring diagram in this section.

5. Select Accept Low CJC and download to the device.

6. Using a 1734-RTB removable terminal block, apply 3000 Ω to the

selected CJC channel.

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Calibrate Your Module 47

When the calibration is accepted by the module, it sets the Bad Cal Status bit for the channel to Good Calibration, as shown here.

7. Select Accept High CJC and download to the device.

8. If RSNetWorx reports a communication error, or if an error occurred

during this calibration, abort calibration and try again.

Calibration is done as soon as High and Low calibration for the selected channels is done successfully.

Repeat above steps to calibrate the other channel if you chose to calibrate only one channel at a time. Both high and low inputs must be accepted in order for the module to finish calibration.

Calibration is now complete.

If the module does not accept calibration (status indicator still blinking), click Calibration Command and select Abort Calibration, apply, and start over.

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48 Calibrate Your Module

IMPORTANT

01 0101 01 010101

DeviceNet Input

100 Ω for Low; 500 Ω for High

Channel 0 Connect to 0 and 2

Decade Resistance Box (0.05% or better)

Channel 1 Connect to 1 and 3

1734-IR21734-PDN

Channel 0

Channel 1

45998

45999

100 Ω for Low; 500 Ω for High

1 Ω resistor

Tools and Equipment Required to Calibrate Your RTD Module

Calibrate the RTD Input Module

To calibrate your RTD module, you need the following tools and equipment.

Tool or Equipment Description

Precision Resistors High precision resistors:

100 Ω, 0.04%, 5 ppm/ oC 500 Ω, 0.03%, 5 ppm/ oC - for 1734-IR2 module 200 Ω, 0.03%, 5 ppm/ oC - for 1734-IR2E module or Calibrated resistor Decade Box, 0.05%

Precision Voltage Source +100 mV, 1 mV resolution - accuracy +

3 μV or better

To calibrate your RTD input module, connect the module to a DeviceNet system similar to that shown in the figure and perform the following procedures.

Apply power to the power supply and module for at least 10 minutes before calibrating the module.

Module Calibration

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1. Double-click the icon to bring up the General Parameter dialog.

Calibrate Your Module 49

Click Device Parameters to view the parameters.

Select the desired channel, or select “Both Channels.”

2. Click Device Parameters to view the parameters.

The EDS editor may ask you if you want to upload the configuration from the device.

3. From the EDS editor, if it asks you about uploading the configuration from the device, click Upload; otherwise, proceed to the next step.

4. From the Device Parameters dialog, click Calibration Channel Select to bring up your channel selections, and select a channel, or select both.

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50 Calibrate Your Module

This is the Groups pull-down menu.

Select Begin Calibration on the calibration command pull-down menu.

5. From the Device Parameters dialog, select Calibration at the Groups pull-down.

6. Click Calibration Command and select Begin Calibration.

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7. Click the Download to Device button. Both channel status indicators turn off.

8. From the General Parameters dialog, click the Download to Device button.

9. Using a 0.05 % accurate resistance box, apply 100.00 Ω to the input, assuming that you have selected Ohms as the RTD type for the channel being calibrated.

Calibrate Your Module 51

10. From the General Parameters dialog, click Accept Low Calibration.

11. From the General Parameters dialog, click the Download to Device

button. The status indicator(s) for the channel(s) being calibrated blinks.

12. Set the resistance box to 500 Ω. . For the 1734-IR2E, set the resistance box to 200 Ω .

13. From the General Parameters dialog, click Accept High Calibration.

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52 Calibrate Your Module

14. From the General Parameters dialog, click the Download to Device button. Calibration is done as soon as High and Low calibration for the selected channels is done successfully.

Chapter Summary

If you are calibrating each channel separately, repeat the procedure to calibrate the other channel.

Both high and low inputs must be accepted in order for the module to finish calibration.

Calibration is now complete.

If the module does not accept calibration (status indicator still blinking), click Calibration Command, select Abort Calibration and start over.

This chapter explained how to calibrate the modules. The next chapter explains the module status indicators.

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Troubleshoot the Module

Thermocouple

Input

Module Status

Network Status

1734

IT2I

NODE:

Module status

Network status

Status of input 0 Status of input 1

46000

46009

Chapter

Overview

Interpret the Status Indicators

Read this chapter to interpret your I/O module status indicators.

Each module has the following status indicators:

•Module

•Network

•Input 0

•Input 1

Status Indicators on the Module

Module Status

Network Status

NODE:

RTD

Input

1734

IR2

Indicator Sta

stus for Module

Status Description

Module status Off No power applied to device.

Green Device operating normally. Flashing green Device needs commissioning due to missing,

incomplete, or incorrect configuration. Flashing red Recoverable fault is present. Red Unrecoverable fault may require device

replacement. Flashing

53 Publication 1734-UM004F-EN-E - December 2012

red/green

Device is in self-test.

54 Troubleshoot the Module

IMPORTANT

Indicator Stastus for Module

Status Description

Network status Off Device is not online.

- Device has not completed dup_MAC_id test.

- Device not powered - check module status indicator.

Flashing green Device is online but has no connections in the

established state.

Green Device online and has connections in the

established state.

Flashing red One or more I/O connections are in timed-out

state.

Red Critical link failure is present with failed

communication device. Device detected error that prevents it from communicating on the network.

Chapter Summary

Flashing red/green

Channel status Off Module is in CAL mode.

Solid green Normal state is present with channel scanning

Flashing green Channel being calibrated. Solid ged Major channel fault is present. Flashing ged Channel is at end of range (over or under).

Communication faulted device - the device detected a network access error and is in communication faulted state. Device received and accepted an Identify Communication Faulted Request - long protocol message.

inputs.

This module is not field repairable. Any attempt to open this module will void the warranty. If repair is necessary, return this module to the factory.

This chapter helped you to interpret the status indicators on the modules. Refer to the Appendix to learn how to configure the POINT I/O Thermocouple and RTD Modules using the RSLogix 5000 software.

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Appendix

Configure Modules in RSLogix 5000 Software

Overview

Understanding Data, Connection, and

Read this appendix for information about how to configure your modules in RSLogix 5000 software, including how to complete entries on the following dialogs.

• Configuration

• Alarm Configuration

• Calibration

The following table lists where to find specific information in this chapter.

Topic Page

Understanding Data, Connection, and Communication Formats 55 Configure Your Module 56 Use the Help Button 57 Working with Dialogs 57

Before you configure your modules, note the following about Data formats and Connection types.

Communication Formats

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• Data format type is Integer.

• Connection types are:

– Data – Listen Only

Communication formats for adapters are:

• Listen Only - Rack Optimization

•None

• Rack Optimization

Choices for formats for the module depend on the Communication format for the adapter. See the table for a listing of possible module Connection formats based on adapter Communication formats. The modules do not support Rack

56 Configure Modules in RSLogix 5000 Software

Optimized Connections. They only support direct Data (default) and Listen Only Connections.

Module Connection Formats

Adapter Communication Formats Possible Module Connection Formats

Listen Only - Rack Optimization Data (default)

Listen Only

None Data (default)

Listen Only

Rack Optimization Data (default)

Listen Only

When you change Connection and Data Format:

• you do not delete the existing module.

• you do not create a new module.

• you bring forward all possible configuration data for the new setting.

• configuration data that you cannot bring forward sets to the default value.

Configure Your Module

Once you apply new settings, this becomes the base configuration for the next change in Connection and Data Format settings. When you select Apply, you lose all configuration data from previous data formats.

Perform this procedure to configure your module in RSLogix 5000 software:

1. Configure your adapter. Refer to the user manual for your adapter for information on how to configure the adapter and add modules to the I/O configuration to include the following:

• Select a controller

• Select a communication module

2. Add a 1734-IR2, 1734-IR2E or 1734-IT2I module, according to the instructions in your adapter user manual.

3. Complete entries for the following dialogs, as explained in this appendix.

•Configuration

• Alarm Configuration

• Calibration

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Configure Modules in RSLogix 5000 Software 57

Use the Help Button

Working with Dialogs

From the Configuration, Alarm Configuration, and Calibration dialogs, click Help at the bottom of the dialog for information about how to complete entries on the dialogs.

From a warning dialog, click Help at the bottom of the dialog to get information about that specific error.

Follow these procedures to complete entries for the dialogs associated with using RTD and thermocouple modules. You typically display these dialogs from the General dialog.

Work with Dialogs for RTD Modules

Complete entries for the following RTD dialogs.

• Configuration

• Alarm Configuration

• Calibration

Configuration Dialog

This dialog does not appear for Listen-only options. The dialog displays configuration parameters for each channel in individual rows on the grid. The 1734-IR2 and the 1734-IR2E modules have two input channels. To complete entries on this dialog, proceed as follows.

1. From the General dialog, click Configuration to display the following

Configuration dialog.

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58 Configure Modules in RSLogix 5000 Software

TIP

2. Make entries on the dialog, referring to the table for information on how to complete entries for the channel indicated.

For details on these parameters see the Configure Your RTD Input Module section on page 31.

3. From the bottom of the dialog, perform one of the following:

• Click a tab at the top of the dialog to continue making entries.

• Click OK to save changes and close the dialog.

• Click Cancel to return to default values.

• Click Apply to save changes you made on any of the dialogs and continue to display the dialog, noting that you enable the Apply button when you make changes to any of the dialogs.

For This Value Select Comments

Sensor Type Ohms

100 Ω Pt 385 200 Ω Pt 385 100 Ω Pt 3916 200 Ω Pt 3916 10 Ω Cu 427 120 Ω Ni 672 100 Ω Ni 618 120 Ω Ni 618

Temperature Units Custom Scale

Celsius Fahrenheit Kelvin Rankine

High Engineering Select from

-32,768...32,767.

Low Engineering Select from

-32,768...32,767.

Digital Filter (ms) Select from 0...10,000. Default is 0.

Default is 100 Ω Pt 385.

(The 1734-IR2E module only supports Ohms, and 100 Ω Pt 385)

Default is Celsius.

Default is 5000. This is enabled when you select Custom Scale for Temperature Units.

Default is 1000. This is enabled when you select Custom Scale for Temperature Units.

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Notch Filter 50 Hz

60 Hz 100 Hz 120 Hz 200 Hz 240 Hz 300 Hz 400 Hz 480 Hz

The 1734-IR2E can display temperature in tenths. Choose Custom Scale, and set low scaling to 0, and high scaling to 3000.

Default is 60 Hz.

Configure Modules in RSLogix 5000 Software 59

Alarm Configuration Dialog

This dialog does not appear for Listen-Only options. The dialog displays alarm configuration parameters for each channel in individual rows on the grid. The 1734-IR2 module has two input channels. To complete entries on this dialog, proceed as follows.

1. Click Alarm Configuration to display the dialog.

2. From the top of the dialog, at Channel click a push button to select a

channel, with the selected push button appearing pressed.

3. From the dialog, make entries, referring to the table that shows how to complete entries for the channel you selected.

4. From the dialog, perform one of the following:

• Click a tab at the top of the dialog to continue making entries.

• Click OK to save changes and close the dialog.

• Click Cancel to return to default values.

• Click Apply to save changes you made on any of the dialogs and continue to display the dialog, noting that you enable the Apply button when you make changes to any of the dialogs.

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60 Configure Modules in RSLogix 5000 Software

For This Value Select Comments

Channel A push button to

correspond to a channel such as 0, 1, and 2

High-High -32,768...32,767 Select a value so that any value out of range

High -32,768...32,767 Select a value so that any value out of range

Low -32,768...32,767 Select a value so that any value out of range

Low-Low -32,768...32,767 Select a value so that any value out of range

Disable All Alarms

Unlatch Click the push button

Latch Process Alarms

Click to check the checkbox

next to the alarm

Click to check the checkbox

Click a push button for a channel to show it as pushed, which means the values you enter on this dialog apply for the channel you selected.

in this field causes a profile validation error. This value also appears in the HH slider on this dialog.

in this field causes a profile validation error. This value also appears in the HI slider on this dialog.

in this field causes a profile validation error. This value also appears in the LO slider on this dialog.

in this field causes a profile validation error. This value also appears in the LL slider on this dialog.

A check in the checkbox indicates that the alarm is disabled.

An attempt to write a non-valid (any Spare value) into the I/O Disable all Alarms field will cause a profile validation error. If the alarm is disabled, the whole line for the channel can be disabled for alarms. Disable in Hard Run Mode only.

Click the Unlatch button to unlatch each alarm individually. This feature is disabled when offline and in Hard Run mode.

Click to unlatch all alarms together. This feature is disabled when offline and in Hard Run mode.

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Calibration Dialog

To complete entries on this dialog, proceed as follows. Perform calibration in Hard Run or Remote mode.

Configure Modules in RSLogix 5000 Software 61

1. Click Calibration to display the dialog.

2. Check the Calibrate checkbox to specify which channel to calibrate.

3. Under Calibrate Channels select One At a Time.

4. Click Start Calibration, which is active when:

• the system is online, and

• you selected at least one of the channels.

Note that you can press the F1 button on your keyboard or click Help from the wizards and warning message that appear to get detailed information about the procedures for calibration.

A Danger dialog appears.

5. From the Danger dialog, for a module not currently used for control, click Continue.

The Low Value dialog appears.

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62 Configure Modules in RSLogix 5000 Software

6. From the Low Value dialog, click Next to start calibration.

The High Value dialog appears.

7. From the High Value dialog, click Next to start calibration.

The Calibration Completed dialog appears. It shows that you saved the changed calibration constants of the channel.

Work with Dialogs for Thermocouple Modules

Complete entries for the following dialogs for thermocouple modules.

•Configuration

• Alarm Configuration

• Calibration

Configuration Dialog

The Configuration dialog displays configuration parameters for each channel in individual rows on the grid. The 1734-IT2I module has two input channels. The Configuration dialog does not display for Listen-Only connections. To complete the entries on this dialog, proceed as follows.

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Configure Modules in RSLogix 5000 Software 63

1. Click Configuration to display the dialog.

2. Complete entries for the channel indicated per the table.

For more details about these parameters, see seeConfigure Your Thermocouple Input Module on page24.

3. From the dialog, perform one of the following:

• Click a tab at the top of the dialog to continue making entries.

• Click OK to save changes and close the dialog.

• Click Cancel to return to default values.

• Click Apply to save changes you made on any of the dialogs and continue to display the dialog, noting that you enable the Apply button when you make changes to any of the dialogs.

For This Value Select Comments

Sensor Type mV (No

Linearization) Type B Type C Type E Type J Type K Type N Type R Type S Type T

Temperature Units Custom Scale

Celsius Fahrenheit Kelvin Rankine

High Engineering -32,768...32,767. Default is 7000.

Default is Type K.

Default is Celsius

This is enabled when you select Custom Scale for Temperature Units.

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64 Configure Modules in RSLogix 5000 Software

For This Value Select Comments

Low Engineering -32,768...32,767. Default is 1000.

This is enabled when you select Custom

Scale for Temperature Units. Digital Filter (ms) 0...10000. Default is 0. Notch Filter 50 Hz

60 Hz 100 Hz 120 Hz 200 Hz 240 Hz 300 Hz 400 Hz 480 Hz

Cold Junction Enable Click to check the

checkbox

Default is 60 Hz.

If checked the Cold Junction feature is

enabled. Cold Junction Offset

(°C)

Cold Junction Notch Filter

Cold Junction Mode None

0.00...70.00 Select a value to configure the value for cold junction offset. You enable this feature when you check Cold Junction Enable. This feature is disabled in Hard Run mode. Default is 0.

50 Hz 60 Hz

Channel 0 Channel 1 Average Both

Select the value for Cold Junction Notch Filter. Default is 60 Hz.

Select a value for Cold Junction Mode. Default is channel 0.

Alarm Configuration Dialog

This dialog does not appear for Listen-Only options. The dialog displays alarm configuration parameters for each channel in individual rows on the grid. To complete entries on this dialog, proceed as follows.

1. Click Alarm Configuration to display the dialog.

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Configure Modules in RSLogix 5000 Software 65

2. From the top of the dialog, at Channel click on a push button to select a channel, with the selected push button appearing pressed.

3. Make entries on the dialog, referring to the table for information on how to complete entries for the channel indicated.

4. From the dialog, perform one of the following:

• Click a tab at the top of the dialog to continue making entries.

• Click OK to save changes and close the dialog.

• Cancel to return to default values.

• Click Apply to save changes you made on any of the dialogs and continue to display the dialog, noting that you enable the Apply button when you make changes to any of the dialogs.

For This Value Select Comments

Channel A push button to

correspond to a channel such as 0, 1, and 2

High High -32,768...32,767 Select a value so that any value out of

High -32,768…32,767 Select a value so that any value out of

Low -32,768…32,767 Select a value so that any value out of

Low Low -32,768.…32,767 Select a value so that any value out of

Click a push button for a channel to show it as pushed, which means the values you enter on this dialog apply for the channel you selected.

range in this field causes a profile validation error. This value also appears in the HH slider on this dialog. Default is 32,767.

range in this field causes a profile validation error. This value also appears in the HI slider on this dialog. Default is 32,767.

range in this field causes a profile validation error. This value also appears in the LO slider on this dialog. Default is -32,768.

range in this field causes a profile validation error. This value also appears in the LL slider on this dialog. Default is -32,768.

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66 Configure Modules in RSLogix 5000 Software

IMPORTANT

For This Value Select Comments

Disable All Alarms

Unlatch Click the push button

Latch Process Alarms

Click to check the checkbox

next to the alarm

Click to check the checkbox

A check in the checkbox indicates that the alarm is disabled.

Click the Unlatch button to unlatch each alarm individually. This feature is disabled when offline and in Hard Run mode.

Click to unlatch all alarms together. This feature is disabled when offline and in Hard Run mode.

Calibration Dialog

To complete the entries on the Calibration Dialog, proceed as follows. Module must be inhibited before you can begin calibration.

Configure channels that will be calibrated to MV Sensor Type and apply.

1. Click Calibration to display the dialog.

2. Check the Calibrate checkbox to specify channels to calibrate.

3. For Type of Calibration, select one of the following:

•Input

• Cold Junction

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Configure Modules in RSLogix 5000 Software 67

4. For Calibrate Channels, select One At a Time or In Groups to calibrate multiple channels.

5. Click Start Calibration, which is active when:

• the system is online.

• you selected at least one of the channels.

Note that you can press the F1 button on your keyboard or click Help from the wizards and warning messages that appear to get detailed information about the procedures for calibration.

If a Danger dialog appears, the module is not inhibited. (Calibration for channel 0 shown)

6. From the Danger dialog, for a module not currently used for control, click Cancel and inhibit the module before you begin calibration.

The Low Value dialog appears.

7. From the Low Value dialog, click Next to start calibration.

The High Value dialog appears.

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68 Configure Modules in RSLogix 5000 Software

8. From the High Value dialog, click Next to start calibration.

The Calibration Completed dialog appears. It shows that you saved the changed calibration constants of the channel.

9. Click Finish to exit the wizard. The channels can now be configured for the sensor type desired for normal operation.

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Appendix

Calculate Absolute Accuracy and Accuracy Drift

Overview

Calculate with Formulas

The Absolute Accuracy and Accuracy Drift with temperature specification applies only to mV input for 1734-IT2I, and to ohms input for 1734-IR2 and 1734-IR2E modules. These specifications are listed in the POINT I/O RTD and Isolated Thermocouple Input Module Installation Instructions, publication 1734-IN011

Use mV input (1734-IT2I) or ohms input (1734-IR2 and 1734-IR2E) to verify the Absolute Accuracy or Accuracy Drift of the POINT I/O modules.

Here are the formulas for calculating Absolute Accuracy and Accuracy Drift in mV or ohms.

Absolute Accuracy Formula

Absolute Accuracy measurement is to be done at 25 ⋅ C. The formula to calculate Absolute Accuracy is as follows:

[(measured value - expected value)/ full scale] x 100 %

Accuracy Drift Formula

Accuracy Drift measurement is to be done at 2 ambient Temperature points: T1 and T2. The formula to calculate Accuracy Drift is as follows:

[(measured value (T2) - (measured value (T1)]/ [(T2 - T1) x full scale] x 1000 000

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70 Calculate Absolute Accuracy and Accuracy Drift

Full Scale Values

Use the following full scale values to calculate the formula:

Full Scale Values

Module Full Scale Value

1734-IT2I 160 mV 1734-IR2 625 Ω 1734-IR2E 157 Ω

To find out the Absolute Accuracy or Drift in degree Celsius, you can consult a conversion table.

Publication 1734-UM004F-EN-E - December 2012

Index

Numerics

1734 POINT I/O

overview

Absolute Accuracy 69

calculate 69 formula 69

Accuracy Drift 69

calculate 69 formula 69

apply sequential auto addressing 19

base assembly

mounting

calculate

Absolute Accuracy Accuracy Drift 69

calibrate

your module

Calibration

Module command words

calibration

periodic setup 40, 48 tools 48

calibration setup

analog input module

check I/O defaults 36 commisioning nodes 17 commisioning tools

RSNetWorx

commission a node 21 common techniques used in this manual

Communication formats 55 communication formats

understanding

configuration

EDS files

configuration software 19

third party 19

Configure

RSLogix 5000 software

configure

your module

40, 48

connection

understanding

Connection types 55 conventions x

data

understanding

Data format type 55 DIN rail locking screw

position

EDS files

configuration

formula

Absolute Accuracy Accuracy 69

full scale

value

I/O Status

check defaults

install

module

installation

removable terminal block wiring base assembly 9

keyswitch position 10

1734-IT2I 11 1734-RTD 11

Listen Only 55

manuals

Module 1 module 1

shipping state 39

Module Connection Formats 56

Publication 1734-UM004F-EN-E - December 2012

72 Index

Modules

configure in RSLogix 5000

modules

overview

mounting

base assembly

mounting base

removal

node commissioning tool 21 node setting (out of box) 21

Overview

1734 POINT I/O

parameter setting 22, 29 position the keyswitch 10 publications

purpose of this manual ix

Rack Optimization 55 related documentation ix related publications ix RSNetWorx

commisioning tool

RTB

install and remove

SAA 19 sequential auto addressing

steps to apply

Sequential AutoAddress 19 set module parameters 22, 29 setup

calibration

40, 48

third party configuration software 19 tools

calibration

Understanding communication formats

Understanding connection 55 Understanding data 55

value

full scale

viewing EDS files 36

wiring base assembly 8

your module

calibrate configure 56 install 10

Publication 1734-UM004F-EN-E - December 2012

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Publication 1734-UM004F-EN-E - December 2012 74

Rockwell Automation 1734-IT2I User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Important User Information

Table of Contents

Summary of Changes

New and Revised Information

Change Bars

Preface

Who Should Use this Manual

Purpose of this Manual

Related Documentation

Common Techniques Used in this Manual

Module Features

Selecting a Module Input Type

Communicating with Your Module

Default Data Map for the Thermocouple Input Module (catalog number 1734-IT2I)

Default Data Map for the RTD Input Module (catalog numbers 1734-IR2, and 1734-IR2E)

Data Format (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

Use Module Alarms

Overrange Alarm (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

Underrange Alarm (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

Level Alarms (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

Open-wire Alarm (1734-IT2I, 1734-IR2, and 1734-IR2E modules)

Cold Junction Compensation (1734-IT2I module)

Chapter Summary

Overview

Preventing Electrostatic Discharge

Environment and Enclosure

Install the Mounting Base

Install an I/O Module

Install the Removable Terminal Block

Remove a Mounting Base

Wire the Modules

Chapter Summary

Overview

Configuration Overview

Commissioning a Node

Using the RSNetWorx Commissioning Tool

Use Sequential Auto Addressing

Add the Adapter to Your Network

Use Third Party Configuration Software

Add I/O Modules to Your Network POINTBus

Configure Your Thermocouple Input Module

Basic Set-up Parameters

Advanced Setup Parameters

Basic Setup

Advanced Setup

Set the RTD Input Module Parameters Using RSNetWorx

Configure Your RTD Input Module

Basic Setup Parameters

Advanced Setup Parameters

Basic Setup

Advanced Setup

Check I/O Status and View the EDS File

1734-IT2I module

1734-IR2 and 1734-IR2E modules

Chapter Summary

Overview

Calibration Method

Access Calibration Parameters in RSNetWorx

Input (mV) Calibration

Cold Junction Compensation Calibration

Tools and Equipment Required to Calibrate Your RTD Module

Calibrate the RTD Input Module

Chapter Summary

Overview

Interpret the Status Indicators

Chapter Summary

Overview

Understanding Data, Connection, and Communication Formats 55 Configure Your Module 56 Use the Help Button 57 Working with Dialogs 57

Configure Your Module

Use the Help Button

Working with Dialogs

Work with Dialogs for RTD Modules

Configuration Dialog

Alarm Configuration Dialog

Calibration Dialog

Work with Dialogs for Thermocouple Modules