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Table of Contents IMPORTANT NOTES ............................... II CHAPTER 1 MODULE OVERVIEW ......................... 1-1 1.1 G ..........................1-1 ECTION ENERAL ESCRIPTION 1.1.1 Thermocouple/mV Inputs and Ranges ..................... 1-1 1.1.2 Data Formats ............................1-2 1.1.3 Filter Frequencies ............................. 1-2 1.1.4 Hardware Features ..........................1-2 1.1.5 General Diagnostic Features ........................
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Compact™ IO Isolated Thermocouple Module Wiring Diagram ................................2-16 2.9 C ......................2-16 ECTION UNCTION OMPENSATION 2.10 C ............................2-17 ECTION ALIBRATION CHAPTER 3 MODULE DATA, STATUS, AND CHANNEL CONFIGURATION .............. 3-1 3.1 M ........................... 3-1 ECTION ODULE EMORY 3.2 C ..........................
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Compact™ IO Isolated Thermocouple Module 4.4.3 Open Circuit Detection ..........................4-3 4.5 N ....................4-3 ECTION CRITICAL VS RITICAL ODULE RRORS 4.6 M ......................4-4 ECTION ODULE RROR EFINITION ABLE 4.6.1 Module Error Field ............................ 4-4 4.6.2 Extended Error Information Field ......................4-4 Hardware Errors ................................
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Compact™ IO Isolated Thermocouple Module Preface Read this preface to familiarize yourself with the rest of the manual. This preface covers the following topics: • Who should use this manual • How to use this manual • Related documentation • Technical support •...
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viii Compact™ IO Isolated Thermocouple Module Technical Support For technical support, please contact your local Rockwell Automation TechConnect Office for all Spectrum products. Contact numbers are as follows: • 440-646-6900 • United Kingdom 01908 635230 • Australia 1800-809-929 • Mexico 001-888-365-8677 •...
Chapter 1 Module Overview This chapter describes the 1769sc-IT6I and the conformally coated 1769sc-IT6IK Isolated Thermocouple/mV input modules and explain how the modules read thermocouple or millivolt analog input data. Other than the conformal coating, both modules are identical so all information applicable to the 1769sc-IT6I also applies to the K version.
Chapter 1: Module Overview Millivolt Input Type Range ±50 mV -50 to 50 mV ±100 mV -100 to 100 mV 1.1.2 Data Formats The data can be configured on board each module as: • Engineering units ×1 • Engineering units ×10 •...
Chapter 1: Module Overview 1.1.5 General Diagnostic Features The module contains a diagnostic LED that helps you identify the source of problems that may occur during power-up or during normal channel operation. The LED indicates both status and power. Power-up and channel diagnostics are explained in Chapter 4, Diagnostics and Troubleshooting.
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Chapter 1: Module Overview TERMINAL BLOCK 3.3V x6 isolated channels 5V to 3.3V POWER 5V Analog 24V to 5V Isolated POWER (analog) 20-bit ADC, 5V to 5V Thermocouple Reference, Mux, power INPUT+ TC input Thermocouple Programmable Digital INPUT- Gain In-Amp Isolators BACKPLANE Processor...
Chapter 2 Installation and Wiring Section 2.1 Before You Begin This chapter tells you how to: • Determine the power requirements for the modules • Avoid electrostatic damage • Install the module • Wire the module’s terminal block • Wire input devices Section 2.2 Required Tools and Equipment...
Chapter 2: Installation and Wiring • EN 61000-6-2 Electromagnetic compatibility (EMC) – Part 6-2: Generic standards – Immunity standard for industrial environments. • EN 61000-6-4 Electromagnetic compatibility (EMC) – Part 6-4: Generic standards – Emission standard for industrial environments. This product is intended for use in an industrial environment. 2.3.2 Low Voltage Directive This product is designed to, and verified in compliance with, European Union Safety Standards:...
Chapter 2: Installation and Wiring • Substitution of components may impair suitability for Class I, Division 2. Do not replace components or disconnect equipment unless power has been switched off or the area is known to be non-hazardous. • Do not connect or disconnect components unless power has been switched off or the area is known to be non-hazardous.
Chapter 2: Installation and Wiring 2.5.3 Remove Power Remove power before removing or inserting this module. When you WARNING remove, or insert, a module with power applied, an electrical arc may occur. An electrical arc can cause personal injury or property damage by: •...
Chapter 2: Installation and Wiring The maximum I/O module rating is 8, which means that a module may not be located more than 8 modules away from the system power supply. Section 2.6 Mounting Keeping module free of debris and avoiding overheating: WARNING •...
Chapter 2: Installation and Wiring 2.6.2 Parts List Item Description Bus lever Upper panel mounting tab Lower panel mounting tab Module status LED Module door with terminal identification label Movable bus connector (bus interface) with female pins Stationary bus connector (bus interface) with male pins Nameplate label Upper tongue-and-groove slots Lower tongue-and-groove slots...
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Chapter 2: Installation and Wiring The module can be attached to the controller or an adjacent I/O module before or after mounting. For mounting instructions, see Panel Mounting Using the Dimensional Template or DIN Rail Mounting. To work with a system that is already mounted, see Replacing a Single Module within a System.
Chapter 2: Installation and Wiring When attaching I/O modules, it is very important that the bus connectors WARNING are securely locked together to ensure proper electrical connection. 7. Attach an end cap terminator (5) to the last module in the system by using the tongue-and-groove slots as before.
Chapter 2: Installation and Wiring Panel Mounting Using the Dimensional Template Panel Mounting Procedure Using Modules as a Template The following procedure allows you to use the assembled modules as a template for drilling holes in the panel. If you have sophisticated panel mounting equipment, you can use the dimensional template provided on the previous page Due to module mounting hole tolerance, it is important to follow these procedures:...
2-10 Chapter 2: Installation and Wiring 7. Repeat steps 1 to 6 for any remaining modules. 2.6.4 DIN Rail Mounting The module can be mounted using the following DIN rails: 35 × 7.5 mm (EN 50 022 – 35 × 7.5) •...
Chapter 2: Installation and Wiring 2-11 • Routing field wiring in a grounded conduit can reduce electrical noise. • If field wiring must cross AC or power cables, ensure that they cross at right angles Provision shall be made to prevent the rated voltage being •...
2-12 Chapter 2: Installation and Wiring • Ground the shield drain wire at one end only. The typical location is as follows. For grounded thermocouples or millivolt sensors, this is at the sensor end. For insulated/ungrounded thermocouples, this is at the module end.
Chapter 2: Installation and Wiring 2-13 To remove the terminal block, loosen the upper and lower retaining screws. The terminal block will back away from the module as you remove the screws. Be careful not to damage the CJC sensors. When replacing the terminal block, torque the retaining screws to 0.46 Nm (4.1 in-lbs).
2-14 Chapter 2: Installation and Wiring If you need to remove the finger-safe cover, insert a screwdriver into one NOTE of the square wiring holes and gently pry the cover off. If you wire the terminal block with the finger-safe cover removed, you may not be able to put it back on the terminal block because the wires will be in the way.
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Chapter 2: Installation and Wiring 2-15 wires. 2. Trim the signal wires to 2-inch (5 cm) lengths. Strip about 3/16 inch (5 mm) of insulation away to expose the end of the wire. HAZARD OF DAMAGE TO EQUIPMENT WARNING Be careful when stripping wires. Wire fragments that fall into a module could cause damage at power up.
2-16 Chapter 2: Installation and Wiring Wiring Diagram CJC0+ Grounded Thermocouple IN0+ Ungrounded Thermocouple CJC0- IN0- IN3+ IN1+ IN3- IN1- IN4+ IN2+ IN4- IN2- IN5+ CJC1- IN5- CJC1+ When using an ungrounded thermocouple, the shield must be connected to NOTE ground at the module end.
Chapter 2: Installation and Wiring 2-17 Section 2.9 Calibration The thermocouple module is initially calibrated at the factory. The module must be returned to the factory for calibration. User’s Manual Pub. 0300244-02 Rev. A...
Chapter 3 Module Data, Status, and Channel Configuration After installing the 1769sc-IT6I Isolated Thermocouple/mV Input Module, you must configure it for operation, usually using the programming software compatible with the controller (for example, RSLogix 500 or RSLogix 5000). Once configuration is complete and reflected in the ladder logic, you need to operate the module and verify its configuration.
Chapter 3: Module, Data, Status, and Channel Configuration Not all controllers support program access to the configuration file. Refer NOTE to your controller’s user manual. Section 3.2 Configuring Channels After module installation, you must configure operation details, such as thermocouple type, temperature units, etc., for each channel. Channel configuration data for the module is stored in the controller configuration file, which is both readable and writable.
Chapter 3: Module, Data, Status, and Channel Configuration Word/ 14 13 12 11 10 Not Used Not Used Not Used Not Used Not Used The configuration file can also be modified through the control program, if supported by the controller. For information on configuring the module using RSLogix 500 (with MicroLogix 1500 controller), see Appendix C;...
Chapter 3: Module, Data, Status, and Channel Configuration Input Type Type J Thermocouple Type K Thermocouple Type T Thermocouple Type E Thermocouple Type R Thermocouple Type S Thermocouple Type B Thermocouple Type N Thermocouple Type C Thermocouple Type L Thermocouple* ±50 mV ±100 mV Data Format...
Chapter 3: Module, Data, Status, and Channel Configuration 3.2.4 Selecting Data Formats (Bits 12 through 14) This selection configures channels 0 through 5 to present analog data in any of the following formats: • Raw/Proportional Data • Engineering Units ×1 •...
Chapter 3: Module, Data, Status, and Channel Configuration Raw/Proportional Data The value presented to the controller is proportional to the selected input and scaled into the maximum data range allowed by the bit resolution of the A/D converter and filter selected. The raw/proportional data format also provides the best resolution of all the data formats.
Chapter 3: Module, Data, Status, and Channel Configuration 3.2.6 Selecting Temperature Units (Bit 7) The module supports two different linearized/scaled ranges for thermocouples, degrees Celsius (°C) and degrees Fahrenheit (°F). Bit 7 is ignored for millivolt input types, or when raw/proportional, scaled-for-PID, or percent data formats are used.
Chapter 3: Module, Data, Status, and Channel Configuration 3.2.8 Display CJC Data (Bit 4) When Bit 4 is set, the CJC compensated temperature is displayed for each channel instead of the measured thermocouple or millivolt reading. Setting bit 4 to 0 allows the measured thermocouple or millivolt reading to be displayed. 3.2.9 Selecting Input Filter Frequency (Bits 0 through 2) The input filter selection field allows you to select the filter frequency for each channel 0 through 5.
Chapter 3: Module, Data, Status, and Channel Configuration When selecting a filter frequency, be sure to consider the cut-off frequency to obtain acceptable noise rejection. Choose a filter frequency so that your fastest- changing signal is below that of the filter’s cut-off frequency. The Filter Effects table above lists the expected normal mode rejection for each of the filter settings.
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3-10 Chapter 3: Module, Data, Status, and Channel Configuration The update time can slow down for channels 0 and 5 during CJC sampling which occurs once every 10 seconds. At the 10 second internal the ADC switches from measuring the thermocouple voltage to measuring the CJC voltage. Once a sample of the CJC voltage is taken, the ADC will switch back to measuring the thermocouple voltage.
Chapter 3: Module, Data, Status, and Channel Configuration 3-11 Section 3.3 Input Image File The input image file represents data words and status words. Input words 0 through 5 hold the input data that represents the value of the analog inputs for channels 0 through 5.
3-12 Chapter 3: Module, Data, Status, and Channel Configuration module. This “invalid data” condition can occur (bit set) when the download of a new configuration to a channel is accepted by the module (proper configuration) but before the A/D converter can provide valid (properly configured) data to the 1769 bus master/controller.
Chapter 4 Diagnostics and Troubleshooting This chapter describes troubleshooting the isolated thermocouple/mV input module. This chapter contains information on: Safety considerations while troubleshooting • • Internal diagnostics during module operation • Module errors Section 4.1 Safety Considerations Safety considerations are an important element of proper troubleshooting procedures.
Compact™ IO Isolated Thermocouple Module 4.1.4 Safety Circuits Circuits installed on the machine for safety reasons, like over-travel limit switches, stop push buttons, and interlocks, should always be hard-wired to the master control relay. These devices must be wired in series so that when any one device opens, the master control relay is de-energized, thereby removing power to the machine.
Chapter 5: Diagnostics and Troubleshooting on every scan for configuration errors, over-range and under-range, and open- circuit conditions. 4.4.1 Invalid Channel Configuration Detection Whenever a channel configuration word is improperly defined, the module reports an error. See pages 4-3 to 4-5 for a description of module errors. 4.4.2 Over or Under Range Detection Whenever the data received at the channel word is out of the defined operating range, an over-range or under-range error is indicated in input data word 7.
Compact™ IO Isolated Thermocouple Module Section 4.6 Module Error Definition Table Analog module errors are expressed in two fields as four-digit Hex format with the most significant digit as “don’t care” and irrelevant. The two fields are “Module Error” and “Extended Error Information”. The structure of the module error data is shown below.
Chapter 5: Diagnostics and Troubleshooting If no errors are present in the module error field, the extended error NOTE information field is set to zero. Hardware Errors General or module-specific hardware errors are indicated by module error code 001. See the Extended Error Codes table. Configuration Errors If you set the fields in the configuration file to invalid or unsupported values, the module generates a critical error.
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Controls Inc., please ensure that the unit is enclosed in approved ESD packaging (such as static-shielding/metallized bag or black conductive container). Spectrum Controls, Inc. reserves the right to void the warranty on any unit that is improperly packaged for shipment.
Appendix A Specifications Table A-1 Input/Performance/Environmental Requirements Input Description Value Operating Temperature 0 °C to +60 °C (32 °F to +140 °F) Storage/Non-Operating -40 °C to +85 °C (-40 °F to +185 °F) Temperature Operating Humidity 5% to 95% non-condensing Storage/Non-Operating 5% to 85%, non-condensing Humidity...
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Compact™ IO Isolated Thermocouple Module Input Description Value Thermocouple Type ±1.2 °C maximum at 25 °C for 4.17 Hz, 10 Hz, 16.7 Hz, and 19.6 Hz filters. N (-210 °C to -200 °C) ±1.8 °C maximum at 0 °C to 60 °C for 4.17 Hz, 10 Hz, 16.7 Hz, and 19.6 Hz filters.
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Appendix A: Specifications Input Description Value Thermocouple Type L ±0.6 °C maximum at 25 °C for 4.17 Hz, 10 Hz, 16.7 Hz, and 19.6 Hz filters. ±0.9 °C maximum at 0 °C to 60 °C for 4.17 Hz, 10 Hz, 16.7 Hz, and 19.6 Hz filters.
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Compact™ IO Isolated Thermocouple Module Input Description Value Thermocouple Type ±2.0 °C K (-270°C to -170°C) Thermocouple Type ±0.1 °C E (-220°C to 1000°C) Thermocouple Type ±1.0 °C E (-270°C to -220°C) Thermocouple Types ±0.4 °C S and R Thermocouple Type B ±0.7 °C Thermocouple Type C ±0.2 °C...
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Appendix A: Specifications Input Description Value Max Current input is limited due to input impedance Fault detection Open circuit detection, over-range and under-range error bits. Open circuit detection time is equal to the channel update time. Approximate Shipping 276 g (0.61 lbs.) Weight (with carton) Module Dimensions 118 mm (height) ×...
Appendix B Using Thermocouple Junctions This appendix describes the types of thermocouple junctions available and explains the trade-offs in using them with the 1769sc-IT6I Isolated thermocouple/mV analog input module. HAZARD OF ELECTRICAL SHOCK WARNING Take care when choosing a thermocouple junction and connecting it from the environment to the module.
1769sc-IT6I Spectrum Controls recommends that a grounded junction thermocouple have a protective sheath made of electrically insulated material (for example, ceramic). An alternative is to float the metal sheath with respect to any path to chassis ground or to another thermocouple metal sheath.
Appendix B: Using Thermocouple Junctions Section B.3 Using an Exposed Junction Thermocouple An exposed junction thermocouple uses a measuring junction that does not have a protective metal sheath. A thermocouple with this junction type provides the fastest response time but leaves thermocouple wires unprotected against corrosive or mechanical damage.
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Compact™ IO Isolated Thermocouple Module • For multiple exposed junction thermocouples, do not allow the measuring junctions to make direct contact with electrically conductive process material. • Preferably use a single exposed junction thermocouple with multiple ungrounded junction thermocouples. • Consider using all ungrounded junction thermocouples instead of the exposed junction type.
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Appendix C Module Configuration Using MicroLogix 1500 and RSLogix 500 This appendix examines the 1769sc-IT6I module’s addressing scheme and describes module configuration using RSLogix 500 and a MicroLogix 1500 controller. Section C.1 Module Addressing The following memory map shows the input and configuration image tables for the module.
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Compact™ IO Isolated Thermocouple Module For example, to obtain the general status of channel 2 of the module located in slot e, use address I:e.6/2. Note: The end-cap does not use a slot address. C.1.1 1769sc-IT6I Configuration File The configuration file contains information you use to define the way a specific channel functions.
Appendix C: Module Configuration Using MicroLogix 1500 and RSLogix 500 and that RSLinx™ is properly configured and a communications link has been established between the MicroLogix processor and RSLogix 500. Start RSLogix and create a MicroLogix 1500 application. The following screen appears: While offline, double-click on the IO Configuration icon under the controller folder and the following IO Configuration screen appears.
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Compact™ IO Isolated Thermocouple Module Click on an empty slot in the chassis. Under the “Current Cards Available” list, select the “other” option. The following screen should appear. Enter the settings from the table below. Table C-2 Module ID Codes Vendor ID Product Type Product Code...
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Appendix C: Module Configuration Using MicroLogix 1500 and RSLogix 500 Enter the decimal equivalent of each configuration word. There are a total of 13 words that need to be configured. The module default settings are used if all the configuration words are left at zero. Refer to Chapter 3 for a complete description of each configuration word.
Appendix D Configuring the IT6I for CompactLogix Controllers in RSLogix 5000 The procedure in this example is used only when your 1769sc-IT6I Isolated Thermocouple module add-on profile is not available. An add-on profile for the 1769sc-IT6I will be made available on our website (www.spectrumcontrols.com) after the initial release of the module.
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Compact™ IO Isolated Thermocouple Module The following main RSLogix 5000 screen appears: In the Controller Organizer on the left of the screen, right click on “CompactBus Local”, select New Module, and the following screen appears: This screen is used to narrow your search for I/O modules to configure into your system.
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Appendix D: Configuring the IT6I for CompactLogix Controllers in RSLogix 5000 Click the OK button and the following default Generic Profile screen appears: First, select the Comm Format (“Input Data – INT” for the 1769sc-IT6I), then fill in the name field. For this example, “IT6I” is used to help identify the module type in the Controller Organizer.
Compact™ IO Isolated Thermocouple Module At this point you may click “Finish” to complete the configuration of your I/O module. Configure each I/O module in this manner. Section D.3 Configuring I/O Modules Once you have created a Generic Profile for 1769sc-IT6I Isolated Thermocouple module, you must enter configuration information into the tag database that is automatically created from the Generic Profile information you entered.
Appendix D: Configuring the IT6I for CompactLogix Controllers in RSLogix 5000 Section D.4 Configuring a 1769sc-IT6I Isolated Thermocouple Module To configure the 1769sc-IT6I module in slot 1, click on the plus sign left of Local:1:C. Configuration data is entered under the Local:1:C.Data tag. Click the plus sign to the left of Local:1:C.Data to reveal the 13 integer data words where configuration data may be entered for the 1769sc-IT6I module.
Appendix E Configuring the IT6I to be Used with a 1769-ADN DeviceNet Adapter This application example assumes your 1769sc-IT6I isolated thermocouple input module is in a remote DeviceNet system controlled by a 1769-ADN DeviceNet adapter. RSNetworx for DeviceNet is not only used to configure your DeviceNet network but is also used to configure individual I/O modules in remote DeviceNet adapter systems.
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Compact™ IO Isolated Thermocouple Module Start RSNetworx for DeviceNet. The following screen appears: In the left column under Category, click on the “+” sign next to Communication Adapters. The list of products under Communication Adapters contains the 1769-ADN/A. Should this adapter not appear under Communication Adapters, your RSNetworx for DeviceNet software is not version 6.00 or later.
Appendix E: Configuring the IT6I to be Used with a 1769-AND DeviceNet Adapter To configure I/O for the adapter, double-click on the adapter that you just placed on the network, and the following screen appears: At this point, you may modify the adapters DeviceNet node address, if desired. Next, click on the Module Configuration tab.
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Compact™ IO Isolated Thermocouple Module 1769-ADN. From the module list on the left, select the 1769sc-IT6I. The module should appear in the empty slot. Double-click on the 1769sc-IT6I module in slot 1 and the following 1769sc-IT6I configuration screen appears: Enter 1 into the bank field at the bottom of the screen. By default, the 1769sc-IT6I module contains eight input words and no output words.
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Appendix E: Configuring the IT6I to be Used with a 1769-AND DeviceNet Adapter When complete, the configuration screen looks like the following: Click OK and your configuration for the 1769sc-IT6I isolated thermocouple input module is complete. Refer to your Compact™ I/O 1769-ADN DeviceNet Adapter user’s manual, publication number 1769-UM001A-US-P, for information concerning DeviceNet network configuration and operation.
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