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The Allen Bradley 1769-IR6 is a Compact I/O analog input module designed for precise temperature and resistance signal acquisition in CompactLogix and Compact GuardLogix automation systems. It is widely used in industrial process control applications where accurate RTD (Resistance Temperature Detector) measurement is required for stable and reliable monitoring of thermal conditions.

With six input channels supporting multiple RTD and resistance sensor types, the 1769-IR6 is optimized for process industries such as chemical, power generation, water treatment, and manufacturing, where temperature accuracy directly impacts product quality and system safety.

Technical Specifications

Specification Item	Details
Manufacturer	Allen Bradley (Rockwell Automation)
Model Number	1769-IR6
Product Type	RTD / Resistance Input Module
Product Family	Compact I/O Series
Number of Channels	6 RTD / Resistance Inputs
Supported Input Types	RTD & resistance sensors
Resistance Ranges	0–150 Ω, 0–500 Ω, 0–1000 Ω, 0–3000 Ω
RTD Types Supported	Platinum (385 / 3916), Nickel (672 / 618), Nickel Iron (518)
Resolution	High-resolution sigma-delta conversion
Backplane Current Draw	Approx. 100 mA @ 5V DC
24V DC Current Draw	Approx. 45 mA
Power Dissipation	Approx. 1.5 W
Isolation Voltage	720V DC (channel-to-bus, 1 minute)
Wiring Type	2-wire / 3-wire / 4-wire RTD compatible
Status Indicators	Module status LED
Diagnostics	Open-circuit detection & fault monitoring
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 85°C
Mounting Type	DIN rail / panel mount
Dimensions	Approx. 118 × 35 × 87 mm
Weight	Approx. 0.25 kg

Recommended Related Models

Related Model	Function
1769-IT6	Thermocouple input module
1769-IF8	Analog input module
1769-OF2	Analog output module
1769-IQ16	Digital input module
1769-L33ER	CompactLogix controller
1768-ENBT	Ethernet communication module

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Industrial Applications

The 1769-IR6 is widely used in industrial systems requiring accurate temperature monitoring and resistance-based measurement in critical process environments.

Typical applications include:

Chemical and petrochemical processing systems
Power plant temperature monitoring
Food and beverage production control
Water and wastewater treatment plants
Pharmaceutical manufacturing systems
HVAC temperature regulation systems
Industrial furnace and heating systems
Precision process control equipment

Its RTD compatibility ensures stable and accurate temperature feedback for safety-critical and quality-sensitive operations.

Key Advantages

High-Accuracy RTD Measurement

Provides precise temperature sensing through advanced resistance measurement and sigma-delta conversion technology.

Multi-Sensor Compatibility

Supports multiple RTD standards including platinum and nickel sensor types, enabling flexible industrial integration.

Reliable Industrial Isolation

Strong channel-to-bus isolation enhances measurement stability and protects against electrical noise.

Flexible Wiring Support

Compatible with 2-wire, 3-wire, and 4-wire RTD configurations for different installation requirements.

Compact and Efficient Design

Delivers six high-precision input channels in a small Compact I/O footprint, optimizing control cabinet space.

Technical FAQs

1. What is the 1769-IR6 used for?

It is used for measuring temperature and resistance signals using RTD sensors in industrial automation systems.

2. How many input channels does it provide?

The module provides 6 RTD or resistance input channels.

3. What types of RTDs are supported?

It supports platinum (385/3916), nickel (672/618), and nickel iron (518) RTD types.

4. What resistance ranges are supported?

It supports 0–150 Ω, 0–500 Ω, 0–1000 Ω, and 0–3000 Ω measurement ranges.

5. Is the module compatible with CompactLogix systems?

Yes. It is fully compatible with CompactLogix and Compact GuardLogix platforms.

6. Does it support different wiring configurations?

Yes. It supports 2-wire, 3-wire, and 4-wire RTD connections.

7. What is the power consumption of the module?

It consumes approximately 100 mA at 5V DC and 45 mA at 24V DC.

8. Is the module suitable for harsh environments?

Yes. It is designed for industrial environments with strong electrical isolation and durability.

9. Does it include diagnostics?

Yes. It supports open-circuit detection and module-level fault diagnostics.

10. Why is the 1769-IR6 widely used in industry?

Because it delivers high-precision RTD measurement, multi-sensor flexibility, reliable isolation, and seamless integration into Allen Bradley CompactLogix control systems.

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