Allen-Bradley 1756-IR6I ControlLogix 6-Point Isolated RTD Input Module

Allen-Bradley 1756-IR6I ControlLogix 6-Point Isolated RTD Input Module

Price range: $824.91 through $3,114.57

The Allen-Bradley 1756-IR6I is a 6-point isolated RTD temperature input module supporting 100, 200, 500, and 1000 Ohm Platinum RTDs with individual channel isolation. It converts continuous temperature readings from resistive temperature detectors and resistance sources into digital data for ControlLogix controllers. Point-to-point channel isolation prevents electrical noise and ground loops from compromising sensitive thermal measurements across harsh industrial environments. Built-in digital filtering and 16-bit resolution ensure measurement stability across critical process applications.

$824.91
$2,363.13
$3,114.57
SKU: 1756-IR6I Category: Brand:

Description

  • Part Number: 1756-IR6I
  • Manufacturer: Allen-Bradley
  • Type: 6-Point Isolated RTD Input Module
  • Series: ControlLogix 1756 Series
  • Application: Precision Temperature Monitoring & Thermal Control
  • Size // Rating: 6 Isolated Channels, 16-Bit Resolution
  • Connection Type: Removable Terminal Block / Backplane
  • Compatibility: Allen-Bradley ControlLogix 1756 System

TCI is not an authorized Allen-Bradley distributor.

Warranty Coverage

This product is backed by a TCI Supply 1 year Warranty.

Industrial Repair Services

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Description

The Allen-Bradley 1756-IR6I is a high-accuracy temperature input card designed for the ControlLogix 1756 platform, offering six channels of individually isolated RTD (Resistance Temperature Detector) inputs. It provides precise temperature sensing for process monitoring applications including boilers, heat exchangers, reactors, turbines, and environmental chambers.

With support for a broad range of sensor types—including Platinum (100, 200, 500, and 1000 Ohm), Nickel, Copper, and direct resistance inputs—the 1756-IR6I delivers exceptional application flexibility. True point-to-point channel isolation eliminates ground loop interference and protects sensitive signal processing circuitry from common-mode voltage spikes across separate plant areas.

The module converts field resistance signals using high-resolution 16-bit analog-to-digital converters, featuring customizable notch filtering to suppress 50 Hz and 60 Hz line noise. Wiring terminates into a standard 20-pin Removable Terminal Block (1756-TBNH or 1756-TBSH), and full Removal and Insertion Under Power (RIUP) capability allows technicians to replace the card live without stopping chassis operations or interrupting adjacent control channels.

Frequently Asked Questions

What is the primary function of the Allen-Bradley 1756-IR6I module?

The 1756-IR6I measures resistance signals from RTD temperature sensors and translates them into digital temperature data for ControlLogix processors.

Which RTD sensor types and resistance ranges are compatible with the 1756-IR6I?

It supports 100, 200, 500, and 1000 Ohm Platinum RTDs, as well as Nickel, Copper, and direct resistance inputs up to 1000 Ohms.

What are the advantages of individual channel isolation on this card?

Channel-to-channel isolation prevents ground loop current errors, cancels out common-mode voltages, and ensures signal integrity when sensor wiring runs near heavy electrical equipment.

Does the 1756-IR6I support 2-wire, 3-wire, and 4-wire RTD sensor wiring?

Yes. Each channel can be wired in 2-wire, 3-wire, or 4-wire RTD configurations to compensate for lead wire resistance based on application accuracy needs.

Which Removable Terminal Block (RTB) is required for the 1756-IR6I?

The module requires a 20-pin RTB, such as the 1756-TBNH (NEMA screw clamp) or 1756-TBSH (spring clamp).

What digital conversion resolution does the 1756-IR6I provide?

It provides 16-bit digital resolution across all operating resistance and temperature ranges.

Does the 1756-IR6I support Removal and Insertion Under Power (RIUP)?

Yes. The 1756-IR6I can be inserted or removed from an active ControlLogix chassis without removing system power.

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