Product Details
Module Overview
The 1715-TASIF16 is a high-reliability termination assembly (TA) designed for the Allen-Bradley 1715 Redundant I/O system. This assembly provides the physical connection interface for up to 16 simplex analog input signals, allowing them to communicate with 1715-IF16 analog input modules. Engineered for "Mission Critical" applications such as oil and gas processing, power generation, and chemical manufacturing, the 1715-TASIF16 facilitates a fault-tolerant architecture. While the assembly itself is "Simplex" (meaning it supports a single set of field wiring), it is designed to seat within a redundant I/O baseplate, ensuring that signal integrity is maintained even during module maintenance or partial system failures.
Detailed Engineering Specifications
The 1715-TASIF16 serves as the ruggedized bridge between field instrumentation and the high-speed redundant backplane.
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Module Type: Analog Input Termination Assembly (TA)
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Configuration: Simplex (Single field wiring path)
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Number of Channels: 16 Channels
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Signal Type: Analog Input (typically 4–20 mA or 0–10V DC)
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Connectivity: Dual-port interface for module redundancy
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System Compatibility: 1715 Redundant I/O System / 1715-IF16 Modules
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Mounting: Plugs directly into the 1715-A3IO or 1715-A6IO baseplate
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Field Termination: Screw-terminal or spring-clamp (depending on the RTB used)
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Isolation: Galvanic isolation between field signals and the system backplane
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Operating Temperature: -25°C to 70°C (-13°F to 158°F)
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Storage Temperature: -40°C to 85°C (-40°F to 185°F)
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Physical Weight: 0.45 lbs (0.20 kg)
Fault-Tolerant Architecture
A key design feature of the 1715-TASIF16 is its "Dual Port" capability. In a redundant configuration, two 1715-IF16 modules are plugged into the baseplate side-by-side. The termination assembly maps the 16 field signals to both modules simultaneously. If one module fails or is removed for calibration, the second module continues to process the analog data without interruption. This "Hot-Swap" capability ensures that the control loop remains closed and the process stays online, significantly reducing the risk of unplanned downtime.
Installation and Field Wiring
The 1715-TASIF16 is a passive component that contains no active electronics, which contributes to its high MTBF (Mean Time Between Failures). It is installed onto the 1715 baseplate by aligning the heavy-duty connectors and securing it with the integrated mounting screws. Field wiring for the 16 analog channels is then landed on the associated terminal block. To ensure the highest level of noise immunity, shielded twisted-pair cabling is recommended, with the shields properly landed on the assembly’s grounding bar.
Technical FAQ
What is the difference between a Simplex and a Duplex termination assembly?
The 1715-TASIF16 (Simplex) provides one set of terminals for 16 field devices. A Duplex TA would provide redundant terminal paths for each field device, typically used in SIL-3 safety applications where even a loose wire on a terminal block must be mitigated.
Does this assembly support HART communication?
Yes. When used with the 1715-IF16 module, the 1715-TASIF16 supports the pass-through of HART digital signals, allowing for remote asset management and device diagnostics via the EtherNet/IP network.
Is an external power supply required for the assembly?
The assembly itself is passive. However, the analog loops connected to it (such as 2-wire transmitters) will require a 24V DC loop power source, which can often be distributed through the 1715 system's power architecture.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
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- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
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- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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