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SKU:1756-IR6I
Allen-Bradley 1756-IR6I ControlLogix 6-Point Isolated RTD Input Module
Manufacturer: Allen-Bradley
Product No.: 1756-IR6I
Product Type: Analog RTD Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 320g
Shipping port: Xiamen
Warranty: 12 months
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Beskrivelse
Allen-Bradley 1756-IR6I ControlLogix RTD Input Module
The Allen-Bradley 1756-IR6I is a high-precision, temperature-measuring analog input module for the ControlLogix platform. Featuring six individually isolated channels and a 16-bit resolution architecture, this lightweight 0.32 kg module interfaces with 3-wire and 4-wire RTD sensors to deliver accurate thermal tracking in demanding process environments.
Key Advantages
- Channel-to-Channel Isolation: Six fully independent isolated sensor circuits eliminate ground loop risks and prevent cross-channel signal corruption.
- Dual Processing Modes: Supports baseline integer conversion as well as advanced 32-bit floating-point execution with temperature linearization and process/rate alarming.
- Intelligent Diagnostics: Embedded with under-range/over-range detection, programmable digital notch filters, and real-time wire-off loop sensing.
Technical Specifications
| Input Points | 6 Individually Isolated Channels (20-pin faceplate) |
| Supported RTD Types | Platinum (100, 200, 500, 1000 Ω; α=385/3916), Nickel (100, 120, 200, 500 Ω; α=672/618), Copper (10 Ω) |
| Analog Resolution | 16 bits (7.7 mΩ/bit at 487 Ω max, 15 mΩ/bit at 1000 Ω max, 30 mΩ/bit at 2000 Ω max, 60 mΩ/bit at 4020 Ω max) |
| Module Scan Speeds | 10 ms min (Integer Mode) / 25 ms min (Floating Point Ohms) / 50 ms min (Floating Point Temp) |
| Backplane Current Draw | 250 mA at 5.1 VDC / 125 mA at 24 VDC (Total Power Dissipation: 4.3 Watts max) |
| Operating Scope & Weight | 0°C to 60°C (32°F to 140°F) / Net Module Weight: Approx. 0.32 kg |
Quick Installation
- Chassis Placement: Align and firmly slide the module into any available local or remote I/O slot within the ControlLogix chassis.
- Terminal Block Setup: Wire the sensors using a compatible 1756-TBNH or 1756-TBSH 20-pin Removable Terminal Block (RTB).
- Multicast Configuration: Establish the proper Requested Packet Interval (RPI) and Real-Time Sampling (RTS) parameters to enable deterministic data multicasting.
Technical FAQs
Q1: What are the differences between Integer and Floating-Point data formats?
A1: Integer mode limits scaling data but processes raw readings much faster. Floating-Point mode utilizes the full internal processing library to support temperature linearization, rate alarms, and engineering unit scaling.
Q2: How does the module handle inherent line noise or minor resistance variances?
A2: A built-in digital notch filter minimizes plant electrical field noise, while an integrated 10-ohm copper offset feature compensates for small layout errors on sensitive copper RTD loops.
Q3: How does the wire-off detection feature operate?
A3: The wire-off diagnostic checks loop completeness continuously. If a connection on the terminal block is loosened or a field wire breaks, a system fault flag activates instantly to avoid inaccurate control loops.
Ytterligere spesifikasjoner
Skalar (V/f)
Vektor
AC-drevet
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For mer informasjon, vennligst se vår Frakt- og returpolicy.

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