Allen-Bradley 1756-IT6I2/A ControlLogix Enhanced Thermocouple Input Module
$123.00
$320.00
Description
Allen-Bradley 1756-IT6I2/A ControlLogix Enhanced Thermocouple Input Module
The Allen-Bradley 1756-IT6I2/A, also cataloged as the 1756-IT6I2 Analog Thermocouple Module, operates as a dedicated hardware component for isolated temperature signal acquisition within ControlLogix platforms. The module processes six isolated thermocouple and millivolt input channels with dual cold junction compensation and 16-bit analog conversion.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-IT6I2/A |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.63 lbs |
| Power Consumption | 4.6 W maximum |
| Module Type | Analog Thermocouple Module |
| Product Line | ControlLogix |
| Input Channels | 6 isolated thermocouple / millivolt inputs |
| Cold Junction Compensation | 2 CJC sensors |
| Input Resolution | 16 bits |
| Input Range | -12 to 78 mV; -12 to 30 mV high resolution range |
| Resolution | 1.4 microvolt/bit typical; 0.7 microvolt/bit high resolution range |
| Supported Sensors | B, C, D, E, J, K, L, N, R, S, T thermocouples |
| Isolation | 250 V channel-to-channel and channel-to-backplane |
| Module Scan Time | 25 ms minimum floating point millivolt; 50 ms minimum floating point temperature; 10 ms minimum integer millivolt |
| Data Format | Integer mode (left justified, 2s complement); IEEE 32-bit floating point |
| Backplane Current | 200 mA at 5 VDC; 120 mA at 24 VDC |
| Terminal Blocks | 1756-TBNH, 1756-TBSH |
| Connector Type | 20 pin removable terminal block |
ControlLogix Isolated Thermocouple Signal Processing
The 1756-IT6I2/A provides six individually isolated thermocouple and millivolt input paths for ControlLogix systems. Each input channel performs independent analog signal conversion while maintaining electrical isolation between field circuits and the chassis backplane.
The module supports thermocouple types B, C, D, E, J, K, L, N, R, S, and T. Dual cold junction compensation sensors are integrated for thermocouple temperature calculation. Signal conversion uses 16-bit resolution with configurable data formatting through integer mode or IEEE 32-bit floating point representation.
EtherNet/IP and ControlLogix Platform Integration
The 1756-IT6I2/A operates through the ControlLogix chassis backplane communication structure. Processed analog values, module status information, and configuration parameters are exchanged through the controller backplane bus.
The module supports ControlLogix I/O density scaling through isolated analog input channel allocation. Firmware configuration compatibility allows sensor selection, input range parameters, and filtering settings to be managed through the ControlLogix programming environment.
Frequently Asked Questions (FAQ)
Q: How many isolated input channels are available on the 1756-IT6I2/A module?
A: The module provides six isolated thermocouple/millivolt input channels and includes two cold junction compensation sensors.
Q: What type of data output formats does the 1756-IT6I2/A support?
A: The module supports integer mode with left justified 2s complement formatting and IEEE 32-bit floating point data representation.
Q: Is the 1756-IT6I2/A still an active ControlLogix module?
A: The module has been discontinued and is no longer part of the current product offering. Existing units may require migration planning or replacement evaluation.
Field Installation Guidelines
Install the 1756-IT6I2/A module in a compatible ControlLogix chassis slot and verify available backplane power capacity before installation. Use approved 1756-TBNH or 1756-TBSH removable terminal blocks for field connections.
Route thermocouple extension cables away from power conductors, motor cables, and high-frequency switching equipment to reduce electromagnetic interference. Maintain correct thermocouple polarity and use matching extension wire materials for each sensor type.
Terminate cable shields according to site grounding practices. Confirm channel configuration, thermocouple type selection, cold junction compensation settings, and input scaling parameters before commissioning.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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