Excellent PLC
Product Introduction
The Allen-Bradley 1746-NO8I is an analog output module designed for the SLC 500 programmable controller platform. It provides precise current output signals for controlling field devices, making it suitable for applications requiring stable and accurate analog control.
This module features 8 analog output channels, each capable of delivering 0–20 mA current signals. It is typically used to drive actuators, control valves, variable frequency drives, and other process control equipment. The module converts digital values from the PLC into proportional current outputs, enabling smooth and continuous control of industrial processes.
With 16-bit resolution, the 1746-NO8I ensures high output accuracy and fine control granularity. Its plug-in connection design simplifies installation and maintenance, while its compatibility with the SLC 500 system allows easy integration into existing automation architectures.
Product Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Allen-Bradley |
| Series | SLC 500 |
| Module Type | Analog Output Module |
| Catalog Number | 1746-NO8I |
| Number of Channels | 8 Outputs |
| Output Type | Current |
| Output Range | 0–20 mA |
| Resolution | 16-bit |
| Output Accuracy | ±0.3% of full scale (typical) |
| Load Range | Up to 500 Ω |
| Conversion Method | Digital-to-Analog Conversion |
| Update Time | Approx. 2.5 ms (all channels) |
| Backplane Current Consumption | Approx. 0.150 A |
| Isolation | No channel-to-channel isolation |
| Operating Temperature | 0 to 60°C |
| Connection Type | Plug-in terminal block |
| Installation | SLC 500 Chassis |
| Wiring Category | Category 1 |
| Dimensions | 144.5 × 34.6 × 130.18 mm |
| Weight | 0.25 kg |
Applications
● Process Control Systems
Used to output control signals to valves, dampers, and actuators requiring precise current regulation.
● Industrial Automation
Provides analog control signals for drives, controllers, and other field equipment in automated systems.
● Chemical and Petrochemical Industries
Ensures stable control of flow, pressure, and temperature through proportional current outputs.
● Power and Energy Systems
Applies to systems requiring controlled current signals for regulating power-related equipment.
● Machine Control Applications
Supports fine-tuned control of machinery where analog output precision is critical.
Advantages
● High-Precision Output Control
16-bit resolution allows fine adjustment of output signals, improving process accuracy.
● Stable Current Output
Provides consistent 0–20 mA signals suitable for industrial-grade control devices.
● Fast Response Time
Quick update rate ensures timely response in dynamic control systems.
● Simple Installation
Plug-in connection design reduces wiring complexity and maintenance time.
● Compact Integration
Fits directly into SLC 500 chassis without additional hardware requirements.
● Reliable Performance
Engineered for continuous operation in demanding industrial environments.
