Allen-Bradley 1769-IR6 CompactLogix 6-Channel RTD Input Module
The 1769-IR6 is a 6-point analog RTD and resistance input module designed for Allen-Bradley CompactLogix control systems and MicroLogix 1500 expansion racks. It provides high-accuracy temperature and resistance measurements for industrial process automation, equipment monitoring, and thermal control loops. Equipped with onboard Sigma-Delta analog-to-digital conversion, the 1769-IR6 digitizes input signals directly while maintaining minimal signal noise across wide operational temperature ranges.
High-Precision Signal Processing and Resistance Ranges
The module supports six independent channels configurable for resistance temperature detectors (RTDs) or direct resistance sensing. Supported resistance input ranges include 0 to 150 ohms, 0 to 500 ohms, 0 to 1000 ohms, and 0 to 3000 ohms. With an input impedance exceeding 10 MOhm and a common mode voltage range of -10 to 10 VDC, the module minimizes loading effects on field sensor loops and delivers high-resolution temperature feedback.
To ensure transmission integrity over long field wiring runs, the module supports cable impedances up to 25 ohms. Operating on the internal Compact I/O backplane bus, it consumes 100 mA at 5.1 VDC and 35 mA at 24 VDC while generating a maximum heat dissipation of only 1.5 W.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-IR6 |
| Brand | Allen-Bradley |
| Product Line | CompactLogix / Compact I/O |
| Product Type | Analog Input Module |
| Number of Inputs | 6 RTD / Resistance channels |
| Input Ranges | 0 to 150 Ω, 0 to 500 Ω, 0 to 1000 Ω, 0 to 3000 Ω |
| Converter Type | Sigma-Delta |
| Current Draw @ 5.1V DC | 100 mA |
| Current Draw @ 24V DC | 35 mA |
| Maximum Heat Dissipation | 1.5 W |
| Common Mode Voltage Range | -10 to +10 VDC |
| Maximum Cable Impedance | 25 Ω |
| Input Impedance | > 10 MΩ |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
| Storage Temperature | -40 to 85 °C (-40 to 185 °F) |
| Operating Humidity | 5 to 95% (non-condensing) |
| Weight | 0.28 kg (0.63 lbs) |
Frequently Asked Questions
Q: What input devices can be connected to the 1769-IR6 module? A: The module accepts direct inputs from standard Resistance Temperature Detectors (RTDs) as well as general direct-resistance devices operating within the 0 to 3000 ohm range.
Q: Does the 1769-IR6 require an external power supply for channel operation? A: No, operating power is drawn directly from the Compact I/O backplane bus (100 mA at 5.1 VDC and 35 mA at 24 VDC).
Allen-Bradley 1769-IR6 CompactLogix 6-Channel RTD Input Module
Allen-Bradley 1769-IR6 CompactLogix 6-Channel RTD Input Module
The 1769-IR6 is a 6-point analog RTD and resistance input module designed for Allen-Bradley CompactLogix control systems and MicroLogix 1500 expansion racks. It provides high-accuracy temperature and resistance measurements for industrial process automation, equipment monitoring, and thermal control loops. Equipped with onboard Sigma-Delta analog-to-digital conversion, the 1769-IR6 digitizes input signals directly while maintaining minimal signal noise across wide operational temperature ranges.
High-Precision Signal Processing and Resistance Ranges
The module supports six independent channels configurable for resistance temperature detectors (RTDs) or direct resistance sensing. Supported resistance input ranges include 0 to 150 ohms, 0 to 500 ohms, 0 to 1000 ohms, and 0 to 3000 ohms. With an input impedance exceeding 10 MOhm and a common mode voltage range of -10 to 10 VDC, the module minimizes loading effects on field sensor loops and delivers high-resolution temperature feedback.
To ensure transmission integrity over long field wiring runs, the module supports cable impedances up to 25 ohms. Operating on the internal Compact I/O backplane bus, it consumes 100 mA at 5.1 VDC and 35 mA at 24 VDC while generating a maximum heat dissipation of only 1.5 W.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-IR6 |
| Brand | Allen-Bradley |
| Product Line | CompactLogix / Compact I/O |
| Product Type | Analog Input Module |
| Number of Inputs | 6 RTD / Resistance channels |
| Input Ranges | 0 to 150 Ω, 0 to 500 Ω, 0 to 1000 Ω, 0 to 3000 Ω |
| Converter Type | Sigma-Delta |
| Current Draw @ 5.1V DC | 100 mA |
| Current Draw @ 24V DC | 35 mA |
| Maximum Heat Dissipation | 1.5 W |
| Common Mode Voltage Range | -10 to +10 VDC |
| Maximum Cable Impedance | 25 Ω |
| Input Impedance | > 10 MΩ |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
| Storage Temperature | -40 to 85 °C (-40 to 185 °F) |
| Operating Humidity | 5 to 95% (non-condensing) |
| Weight | 0.28 kg (0.63 lbs) |
Frequently Asked Questions
Q: What input devices can be connected to the 1769-IR6 module? A: The module accepts direct inputs from standard Resistance Temperature Detectors (RTDs) as well as general direct-resistance devices operating within the 0 to 3000 ohm range.
Q: Does the 1769-IR6 require an external power supply for channel operation? A: No, operating power is drawn directly from the Compact I/O backplane bus (100 mA at 5.1 VDC and 35 mA at 24 VDC).
