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Allen-Bradley ControlLogix 1756 1756-IT6I 6-Point Isolated Thermocouple/mV Input Module | Original New

Allen-Bradley ControlLogix 1756 1756-IT6I 6-Point Isolated Thermocouple/mV Input Module | Original New

Allen-Bradley ControlLogix 1756 6-Point Isolated Thermocouple/mV Input Module

Complete Model

1756-IT6I

Official Product Description

ControlLogix temperature-sensing analog input module with six individually isolated thermocouple or millivolt channels, one cold-junction sensor and two selectable millivolt ranges.

CORE FEATURE: Six individually isolated thermocouple channels with ITS-90 linearization and selectable standard or high-resolution millivolt ranges.

LEAD TIME: In stock

WARRANTY: 1 year

Email Inquiry [email protected]

WhatsApp +86 18159889985

Appurtenance:

allen bradley controllogix 1756 1756 it6i 6 point isolated thermocouple input module-1

Overview
Technical Data
Inquiry
Features
Wiring
Installation
Environment
FAQ
Recommend Models
Recommended Products

Product Overview

1756-IT6I is an Allen-Bradley ControlLogix 1756 temperature-sensing analog input module with six individually isolated thermocouple channels and one cold-junction sensor.

Rockwell Automation specifies -12 to 78 mV and -12 to 30 mV input ranges with 16-bit conversion and support for B, E, J, K, R, S, T, N, C, D and L thermocouple types.

The module provides ITS-90 thermocouple linearization, open-circuit detection, selectable notch filtering and one ControlLogix chassis slot.

Technical Data

Complete model	1756-IT6I
Brand	Allen-Bradley / Rockwell Automation
Product family	ControlLogix 1756
Product type	Individually isolated thermocouple and millivolt input module
Inputs	6 individually isolated thermocouple channels and 1 cold-junction sensor
Input ranges	-12 to 78 mV; -12 to 30 mV high-resolution range
Resolution	16 bits; 1.4 uV/bit typical or 0.7 uV/bit high-resolution
Thermocouple types	B, E, J, K, R, S, T, N, C, D and L (TXK/XK)
Linearization	ITS-90
Current draw at 5.1 V	250 mA
Current draw at 24 V	125 mA
Total backplane power	4.3 W
Power dissipation	4.3 W maximum
Input impedance	More than 10 MOhm
Open-circuit detection	Positive full-scale indication within 2 seconds
Overvoltage protection	120 VAC/DC maximum
Channel bandwidth	15 Hz at -3 dB, notch-filter dependent
Settling time	Less than 80 ms to 5 percent of full scale
Calibrated accuracy at 25 degrees C	Better than 0.1 percent of range
Isolation voltage	250 V continuous, channels-to-backplane and channel-to-channel
Removable terminal block	1756-TBNH or 1756-TBSH, ordered separately
Dimensions	144.5 x 34.6 x 146.9 mm, height x width x depth
Weight	Approximately 0.2 kg (0.5 lb)
Slot width	One ControlLogix chassis slot
Enclosure type	None, open-style equipment
Operating temperature	0 to 60 degrees C
Storage temperature	-40 to +85 degrees C
Relative humidity	5 to 95 percent, noncondensing
Lifecycle	Discontinued March 31, 2017
Official sources	Rockwell Automation product page; publication 1756-TD002M-EN-E pages 110-113; official drawing ABIOM091; Rockwell ControlLogix 1756 system reference

Inquiry

CONTACT

STELLA

Email Inquiry [email protected]

WhatsApp +86 18159889985

Features

Individually isolated channels

Six thermocouple or millivolt inputs are isolated channel-to-channel and from the ControlLogix backplane.

Broad thermocouple support

The published list covers eleven thermocouple designations with ITS-90 linearization.

High-resolution option

Select the -12 to 30 mV range for nominal 0.7 uV/bit resolution.

Cold-junction measurement

One supplied cold-junction sensor supports thermocouple reference compensation at the 20-pin RTB.

Wiring

Field wiring	Use a 1756-TBNH or 1756-TBSH 20-pin removable terminal block housing; order the RTB separately.
Thermocouple channels	Connect IN-0 through IN-5 and their returns with polarity and shield treatment shown in the official diagram.
Cold-junction sensor	Install the specified CJC sensor across the published CJC positive and negative terminals.
Backplane	The module draws 250 mA at 5.1 V and 125 mA at 24 V from the ControlLogix backplane.

Installation

01 - Verify the complete catalog number

Match 1756-IT6I on the quotation, module label, packaging and Rockwell Automation discontinued-product record.

02 - Confirm the thermocouple

Verify the type, polarity, temperature span and required -12 to 78 mV or -12 to 30 mV range.

03 - Select the RTB and CJC

Use 1756-TBNH or 1756-TBSH and confirm the correct cold-junction sensor and terminal placement.

04 - Wire isolated channels

Follow the official 20-pin diagram, maintain shield grounding and do not defeat the 250 V isolation arrangement.

05 - Configure and calibrate

Set the thermocouple type, units, range, notch filter and scaling, then complete the specified calibration checks.

Environment

Operating temperature

0 to 60 degrees C.

Storage temperature

-40 to +85 degrees C.

Relative humidity

5 to 95 percent, noncondensing.

Mechanical endurance

2 g vibration at 10-500 Hz, 30 g operating shock and 50 g nonoperating shock.

Protection

Open-style equipment; install the module in a suitable industrial enclosure.

Certifications

UL, CSA, CE, RCM, ATEX, FM, KC and EAC when marked.

Lifecycle

Discontinued; verify replacement and software migration requirements before purchase.

FAQ

Q1. How can the exact quoted 1756-IT6I be verified?

Match 1756-IT6I on the quotation, module label and packaging. Confirm six isolated thermocouple channels, one CJC, the -12 to 78 mV and -12 to 30 mV ranges and the 20-pin RTB interface.

Q2. How can New, Used or Refurbished condition be distinguished?

Request date-marked photos of the full label, serial and series markings, CAL and OK indicators, CJC sensor, RTB connector, backplane connector and housing. Check for changed labels, worn terminals, repaired plastic or prior panel residue.

Q3. How should supplier legality and reliability be checked?

Verify the supplier legal entity, registered address, invoice details, payment beneficiary and traceable contact. The offer must state Allen-Bradley, 1756-IT6I, discontinued status, condition, quantity and whether the CJC and RTB are included.

Q4. Which specifications must engineering confirm before purchase?

Confirm thermocouple type and polarity, -12 to 78 mV or -12 to 30 mV range, 16-bit resolution, one-CJC arrangement, 250 V isolation, 1756-TBNH or 1756-TBSH RTB, backplane power and controller software profile.

Q5. What physical evidence should be requested before payment?

Ask for date-marked photos showing the full 1756-IT6I label, serial and series markings, six-channel analog faceplate, supplied CJC, 20-pin RTB connector, backplane connector, housing condition and packaging.

Q6. Can 1756-IT6I2 or 1756-IRT8I replace 1756-IT6I?

Not automatically. The enhanced and combined RTD/thermocouple modules differ in channel count, CJC arrangement, isolation performance, RTB and software profile. Complete a wiring and program migration review before substitution.

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