The 1769-IR6 is a high-precision analog input module designed for the Allen-Bradley CompactLogix and MicroLogix 1500 series. Featuring six isolated-to-bus channels, this module provides accurate temperature monitoring and resistance measurements in demanding industrial environments. It supports a wide array of RTD types and direct resistance configurations, making it essential for thermal processing, HVAC systems, and precision cooling applications.
With integrated diagnostic capabilities, the 1769-IR6 ensures system reliability by detecting hardware faults before they impact production.
| Specification | Details |
|---|---|
| Module Identifier | 1769-IR6 |
| Input Channels | 6 RTD / Resistance channels |
| Resistance Ranges | 0–150 Ω, 0–500 Ω, 0–1000 Ω, 0–3000 Ω |
| Supported RTD Types | Platinum 100, 200, 500, 1000 Ω (385/3916); Copper 10 Ω; Nickel 120 Ω; Nickel-Iron 604 Ω |
| Input Impedance | >10 MΩ |
| Resolution | 14-bit (16-bit for some resistance ranges) |
| Channel-to-Bus Isolation | 720V DC for 1 minute (Optical and Magnetic) |
| Current Draw | 100 mA at 5.1V DC; 45 mA at 24V DC |
| Power Dissipation | 1.5 W |
| Working Voltage | 30V AC / 30V DC |
| Cable Impedance | ≤25 Ω |
| Response Time | 6 ms to 303 s (User-configurable filter) |
| Operating Shock | 30 G (Panel Mount) / 20 G (DIN Rail) |
| Dimensions | 35 x 87 x 118 mm |
| Weight | 0.45 kg |
The 1769-IR6 provides comprehensive onboard diagnostics to maintain peak system performance. Each of the six channels monitors:
Open-Circuit Detection: Detects broken field wiring with response time as low as 6 ms.
Short-Circuit Detection: Protects the module and alerts the CPU if an input is shorted.
Range Indication: Visual LED and software bit alerts for Over-range and Under-range status.
Data Conversion: Analog signals are digitally converted and stored as 16-bit integers, easily scaled in Studio 5000 or RSLogix 500.
Removable Terminal Block (RTB): Allows module replacement without disturbing existing field wiring.
Sensor Support: Compatible with 2-wire, 3-wire, and 4-wire RTD configurations. (3-wire and 4-wire recommended for maximum accuracy over long cables).
Stability: Low power dissipation (1.5 W) reduces heat buildup, extending the life of adjacent components.
Can I mix different RTD types on the same 1769-IR6 module?
Yes. Each channel is individually configurable. You can have a Pt100 sensor on channel 0 and a 1000 Ω resistance sensor on channel 1 simultaneously.
How does the 1769-IR6 handle cable resistance compensation?
With 3-wire or 4-wire sensors, the module automatically measures and cancels the resistance of the lead wires (up to 25 Ω per wire), ensuring the reading reflects only the sensor element's value.
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.