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- Allen Bradley
- 1746-NI16I
- PLC Module/Rack
- USA
- 251 × 170 × 59 mm
- 0.4kg
- Xiamen, China
- New & In Stock
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- 1 Year
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Allen-Bradley 1746-NI16I Detailed Technical Overview
1. Product Overview
The Allen-Bradley 1746-NI16I is a high-resolution analog current input module designed for modular PLC systems in the SLC 500 platform. It is a single-slot module that provides 16 independent input channels for precise acquisition of analog current signals.
This module is used to convert analog signals from field devices—such as transmitters, sensors, and process instruments—into digital data that can be processed by the PLC controller. It is widely applied in industrial environments where accurate monitoring of current signals is essential.
2. Brand Information
- Brand: Allen-Bradley
- Industry: Industrial automation and PLC control
- Product Type: Analog input module
The brand is known for producing durable and high-performance automation components used in manufacturing, energy, and process control industries.
3. Product Series
- Series: SLC 500
- Category: Analog I/O module
- Module Type: Current input module
The SLC 500 system is a modular PLC platform that allows flexible configuration. The 1746-NI16I is specifically designed for analog signal acquisition within this system.
4. Technical Parameters
Core Specifications Table
| Parameter | Value |
|---|---|
| Model | 1746-NI16I |
| Module Type | Analog Current Input |
| Series | SLC 500 |
| Number of Channels | 16 |
| Input Signal Range | 0–20 mA, 4–20 mA, ±20 mA, 0–1 mA |
| Resolution | 16-bit |
| Conversion Type | Sigma-Delta |
| Bandwidth | 6–250 Hz |
| Backplane Current (5V) | 125 mA |
| Backplane Current (24V) | 75 mA |
| Power Consumption | approx. 2.43 W |
| Isolation | 500V AC (channel isolation) |
| Step Response | 9–630 ms |
| Operating Temperature | -25°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5–95% non-condensing |
| Dimensions (mm) | 251 × 170 × 59 |
| Weight (kg) | 0.34–0.40 kg |
5. Product Functions and Applications
Main Functions
- Converts analog current signals into digital PLC data
- Supports multi-channel data acquisition (16 inputs)
- Provides isolation between channels and system backplane
- Enables high-precision measurement with 16-bit resolution
- Filters noise through programmable digital filtering
Typical Applications
- Process control systems (flow, pressure, temperature monitoring)
- Industrial manufacturing lines
- Chemical and pharmaceutical production
- Energy and utilities monitoring
- Water treatment and environmental systems
6. Product Advantages
1. High Channel Density
Supports 16 input channels in a single module, reducing hardware footprint and cost.
2. Wide Signal Compatibility
Accepts multiple current signal ranges, making it adaptable to various field devices.
3. High Accuracy
16-bit resolution ensures precise measurement and control.
4. Strong Isolation Performance
Channel isolation improves signal integrity and protects the system from electrical interference.
5. Flexible Filtering
Programmable low-pass filters help eliminate noise in industrial environments.
7. Recommended Models (Same Series or Related)
SLC 500 Series Related Models
| Model | Type | Channels | Voltage / Signal | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1746-NI8 | Analog Input | 8 | ±20 mA | 145 × 35 × 140 | 0.30 |
| 1746-NI4 | Analog Input | 4 | ±20 mA | 145 × 35 × 140 | 0.28 |
| 1746-NO4I | Analog Output | 4 | 0–20 mA | 145 × 35 × 140 | 0.32 |
| 1746-IB16 | Digital Input | 16 | 24V DC | 145 × 35 × 140 | 0.32 |
| 1746-OB32 | Digital Output | 32 | 24V DC | 145 × 35 × 140 | 0.36 |
8. Recommended Popular Models (Same Brand)
Popular Automation Models
| Model | Type | Channels | Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1756-L73 | Control Processor | — | 5V DC | 150 × 140 × 130 | 0.36 |
| 1769-L33ER | Compact Controller | — | 24V DC | 120 × 90 × 70 | 0.28 |
| 1734-IE8C | Analog Input | 8 | 4–20 mA | 75 × 12 × 60 | 0.16 |
| 1769-OF8C | Analog Output | 8 | 0–10V | 118 × 87 × 35 | 0.30 |
| 1756-EN2TR | Ethernet Module | — | 5V DC | 150 × 140 × 130 | 0.32 |