Allen Bradley 1771-ASB B Remote I/O Adapter Module Series B
Overview
Description
The Allen-Bradley 1771-ASB B Remote I/O Adapter Module (Series B) is a component in the Allen-Bradley 1771 series of programmable logic controller (PLC) systems. This module is designed to enable communication between the PLC and remote I/O (Input/Output) devices in distributed control systems, typically in large-scale automation applications. Here’s a detailed breakdown of its features and specifications:
Key Features:
Model: 1771-ASB B Remote I/O Adapter Module (Series B)
Part of the Allen-Bradley 1771 I/O family, widely used in industrial control systems.
Model: 1771-ASB B Remote I/O Adapter Module (Series B)
Part of the Allen-Bradley 1771 I/O family, widely used in industrial control systems.
Function: Remote I/O Communication
The 1771-ASB serves as an adapter module to allow remote I/O communication between the PLC and remote I/O devices. It connects the PLC processor to a network of distributed I/O modules over a communication link.
It is typically used to extend the range of a PLC system, enabling it to control devices that are physically far away from the central PLC, reducing wiring complexity and costs.
Function: Remote I/O Communication
The 1771-ASB serves as an adapter module to allow remote I/O communication between the PLC and remote I/O devices. It connects the PLC processor to a network of distributed I/O modules over a communication link.
It is typically used to extend the range of a PLC system, enabling it to control devices that are physically far away from the central PLC, reducing wiring complexity and costs.
Compatibility:
The 1771-ASB module is compatible with Allen-Bradley PLC-5 series controllers and their associated I/O systems.
It supports the Allen-Bradley Remote I/O network, enabling multiple devices to be connected to the same network, streamlining communication.
Compatibility:
The 1771-ASB module is compatible with Allen-Bradley PLC-5 series controllers and their associated I/O systems.
It supports the Allen-Bradley Remote I/O network, enabling multiple devices to be connected to the same network, streamlining communication.
Network Protocol:
The 1771-ASB module supports the Remote I/O (RIO) protocol, which is a robust, fast communication standard designed for industrial environments.
It facilitates data exchange between the PLC and remote I/O devices in real-time, typically through a data bus or fiber optic link.
Network Protocol:
The 1771-ASB module supports the Remote I/O (RIO) protocol, which is a robust, fast communication standard designed for industrial environments.
It facilitates data exchange between the PLC and remote I/O devices in real-time, typically through a data bus or fiber optic link.
Data Transfer:
The 1771-ASB module handles high-speed data transfer, ensuring that input data from remote devices (sensors, switches, etc.) is communicated to the central controller without significant delay.
It also transmits output data from the PLC to remote actuators (motors, valves, relays, etc.).
Data Transfer:
The 1771-ASB module handles high-speed data transfer, ensuring that input data from remote devices (sensors, switches, etc.) is communicated to the central controller without significant delay.
It also transmits output data from the PLC to remote actuators (motors, valves, relays, etc.).
Addressing and Configuration:
The module allows for multiple I/O devices to be addressed and configured as part of the same control system.
Remote I/O devices can be connected to the 1771-ASB module using standard I/O racks and cables.
Addressing and Configuration:
The module allows for multiple I/O devices to be addressed and configured as part of the same control system.
Remote I/O devices can be connected to the 1771-ASB module using standard I/O racks and cables.
Physical Characteristics:
Typically, the 1771-ASB is a modular, rack-mounted unit. It plugs into the I/O chassis and connects to the PLC processor via a communication bus.
It features LED indicators for monitoring the health and status of the communication link and other diagnostics.
Physical Characteristics:
Typically, the 1771-ASB is a modular, rack-mounted unit. It plugs into the I/O chassis and connects to the PLC processor via a communication bus.
It features LED indicators for monitoring the health and status of the communication link and other diagnostics.
Series B Updates:
The Series B version of the 1771-ASB adapter may include enhanced communication capabilities, improved processing speeds, and better integration with newer hardware or networks compared to earlier versions of the module.
Series B Updates:
The Series B version of the 1771-ASB adapter may include enhanced communication capabilities, improved processing speeds, and better integration with newer hardware or networks compared to earlier versions of the module.
Applications:
Industrial Automation: The 1771-ASB is widely used in factory automation, process control, and other industrial settings where multiple I/O devices need to be controlled remotely from a central PLC.
Distributed Control Systems (DCS): Ideal for applications where the PLC needs to monitor and control devices spread over a large physical area (e.g., manufacturing plants, oil refineries, and water treatment facilities).
Remote Sensing and Actuation: Used in systems with distributed sensors and actuators, such as temperature sensors, pressure switches, and motor controllers.
Specifications
| Dimensions | 7 × 10 × 2 in | 7 × 10 × 2 in |
|---|---|---|
| Weight | 3 lbs | 3 lbs |
Weight: 3 lbs
Dimensions: 7 × 10 × 2 in

