Allen-Bradley 1715-A2A 2-Slot Redundant I/O Adapter Base Unit

Description

Allen-Bradley 1715-A2A 2-Slot Redundant I/O Adapter Base Unit

Product Dimensions：

The Allen-Bradley 1715-A2A is a specialized 2-slot redundant I/O adapter base designed for the 1715 Redundant I/O System. This module is a critical component for high-availability applications where system uptime and fault tolerance are non-negotiable.

Product Detailed Description

The 1715-A2A serves as the physical and electrical foundation for the 1715-ASB2 adapter modules. It provides the backplane connectivity required to support a pair of redundant adapters, ensuring that if one adapter fails, the other takes over seamlessly without interrupting the process. The base is designed for easy DIN-rail mounting and includes the necessary termination points for power and network synchronization.

Technical Parameters

Product Advantages

• Fault Tolerance: Enables true hardware redundancy. By hosting two 1715-ASB2 modules, it eliminates a single point of failure at the communication level.
• Hot-Swap Support: The base allows for the removal and replacement of an adapter module while the system is under power and the redundant partner is still controlling the I/O.
• Rugged Design: Specifically built for harsh industrial environments, offering a wider temperature range and higher vibration resistance than standard commercial-grade hardware.
• Ease of Expansion: Acts as the starting point for a 1715 I/O lineup, allowing for easy connection to subsequent I/O bases (like the 1715-A3IO) via integrated bus connectors.

Important Considerations (Precautions)

• Orientation: This module must be mounted horizontally on the DIN rail to ensure proper heat dissipation and mechanical stability of the plugged-in adapters.
• Termination: Ensure that the 1715-TADIB adapter base termination assembly is correctly seated to maintain signal integrity across the redundant pair.
• Grounding: The DIN rail must be properly grounded to the industrial earth ground to prevent electromagnetic interference (EMI) from affecting communication.
• Module Seating: Ensure that the 1715-ASB2 adapters are fully locked into the 1715-A2A base. A loose connection can cause intermittent “Partner Lost” errors in the Logix controller.

Product Applications

The 1715-A2A is used in high-availability “Mission Critical” systems:

• Oil & Gas: Control systems for offshore platforms and pipeline pumping stations where downtime is extremely costly.
• Power Generation: Monitoring and control for turbines and boilers that require continuous operation for grid stability.
• Chemical Processing: Managing batch reactors where a loss of control could lead to spoiled product or hazardous conditions.
• Critical Infrastructure: Water treatment and tunnel ventilation systems where system failure could impact public safety.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

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