Engineer’s Insight / Overview
The Allen Bradley 1746-NI8 is an 8-channel analog input module for the SLC 500 I/O system. It supports both voltage and current inputs and is designed for high-precision industrial control applications. Engineers value this module for its compact footprint, flexible input ranges, and seamless integration into the SLC 500 chassis. It provides reliable signal acquisition for process monitoring, automation logic, and analog-to-digital conversion in industrial environments.
Technical Specifications
| Parameter | 描述 |
|---|---|
| 型号 Number | 1746-NI8 |
| Module Type | Analog Input Module |
| System Compatibility | Allen-Bradley SLC 500 |
| Channel Count | 8 analog input channels |
| Input Types | ±10 V DC, ±5 V, 0‑5 V, 0‑10 V, 0‑20 mA, 4‑20 mA |
| Backplane Current | 200 mA @ +5 V DC; 100 mA @ +24 V DC |
| Bandwidth / Filter | 1–75 Hz selectable |
| Update Time | ~6 ms |
| Operating Temperature | 0 °C to +55 °C (up to +60 °C in rightmost slot) |
| Storage Temperature | –40 °C to +85 °C |
| Dimensions (W × H × D) | 150 mm × 170 mm × 60 mm |
| 重量 | 0.38 kg |
| Mounting | Single slot in SLC 500 chassis (not slot 0) |
Applications / Use Scenarios
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Monitoring analog process variables such as pressure, temperature, or flow.
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Integration with SLC 500 PLCs for process control and data acquisition.
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Compact I/O panels where multiple analog channels per slot are needed.
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Retr/itting or expanding SLC 500 systems requiring flexible voltage/current input.
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Industrial applications where reliable signal conversion is critical for automation logic.
Advantages / Key Features / Engineering Benefits
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High Channel Density: 8 analog inputs in a single module reduce panel footprint.
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Flexible Input Types: 支持s multiple voltage and current ranges, configurable per channel.
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SLC 500 Compatibility: Seamless integration with existing SLC 500 systems.
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Stable and Reliable Performance: Designed for continuous operation in industrial environments.
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Programmable Filtering: Selectable low-pass filters enhance signal quality.
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Cost-Effective: High channel count per slot lowers overall system cost.
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