Excellent PLC
Product Introduction
The Allen-Bradley 1771-NOC High Resolution Analog Output Module is a precision analog output module designed for the PLC-5 based 1771 I/O platform from Allen-Bradley. It is used to control field devices that require current-based analog input signals, converting digital instructions from the PLC into precise 0–25 mA current outputs.
The module supports eight high-resolution output channels, allowing the PLC to control multiple devices such as valves, actuators, or process instruments simultaneously. Its fast signal response ensures accurate and timely control for critical automation processes, with typical AC and DC signal delays of 45–50 ms.
Installed in a 1771 I/O chassis, the 1771-NOC communicates with the PLC-5 processor via the backplane. It is ideal for process control applications requiring precise analog output regulation and reliable integration with other PLC modules.
Product Specifications
| Parameter | Description |
|---|---|
| Product Name | Allen-Bradley 1771-NOC High Resolution Analog Output Module |
| Manufacturer | Allen-Bradley |
| Series | 1771 PLC-5 I/O System |
| Module Type | High-resolution analog current output module |
| Number of Outputs | 8 current outputs |
| Output Range | 0–25 mA |
| Typical AC Signal Delay (Off) | 45 ms (±15 ms) |
| Typical DC Signal Delay (Off) | 50 ms |
| Installation Location | 1771 I/O chassis |
| Dimensions | 165 × 51 × 89 mm |
| Weight | 0.79 kg |
Applications
● Industrial Process Control
Provides precise analog current outputs to control valves, actuators, and other process devices.
● PLC-5 Automation Systems
Translates digital commands from the PLC into accurate current signals for field devices.
● Manufacturing and Production Lines
Controls equipment requiring high-resolution analog inputs for process optimization.
● Energy and Utility Systems
Regulates devices such as pumps, meters, and actuators based on PLC instructions.
● Instrumentation and Monitoring Systems
Interfaces with process instruments to maintain desired operational parameters.
Advantages
● High-Resolution Outputs
Delivers precise current output control for accurate process regulation.
● Eight Output Channels
Supports multiple devices simultaneously for efficient automation.
● Fast Response Times
Typical AC and DC signal delays are minimal, ensuring timely control actions.
● Reliable PLC Integration
Communicates seamlessly with PLC-5 processors via the 1771 backplane.
● Compact Modular Design
Fits easily into standard 1771 I/O chassis slots for flexible system expansion.
● Stable Industrial Operation
Engineered for long-term performance in demanding industrial environments.
