Product Specification
Allen Bradley 1734-TOP POINT I/O Terminal Base
Brand Name:Allen Bradley
Product Name:1734-TOP
Place of Origin:USA
Warranty:1Year
Key Features
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8 Screw‑Clamp Terminals – Accommodates field wiring for up to 8 connections; suitable for 2‑wire devices
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One‑Piece Design – Integrated terminal base with no separate removable terminal block; simplifies inventory and installation
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12 mm Width – Ultra‑compact footprint for space‑constrained control panels
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Removal and Insertion Under Power (RIUP) – Replace modules while the system remains operational, minimizing downtime
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Universal Mounting – DIN rail mountable; supports horizontal or vertical installation with no derating required
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Modular Slide‑Together Design – Easy installation and removal for faster maintenance
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Available with Conformal Coating – For protection against humidity and corrosive environments
Technical Parameters
Core Advantages
1. Modular Flexibility
The POINT I/O system lets you independently select I/O modules, termination styles, and network interfaces, providing maximum design freedom. The 1734‑TOP supports digital, analog, and specialty I/O modules, enabling system customization to match exact application requirements.
2. Installation & Maintenance Efficiency
The slide‑together module design and RIUP capability allow fast installation and module replacement without system shutdown. The removable wiring system reduces installation and troubleshooting time.
3. Seamless Integration with Integrated Architecture™
The 1734‑TOP, when paired with POINT I/O modules, integrates smoothly into Rockwell Automation Integrated Architecture systems via Add‑on‑Profiles in Studio 5000 Logix Designer®. Support for producer/consumer technology enables data sharing across multiple Logix controllers.
4. Space‑Saving Design
With a 12 mm width, the terminal base enables dense I/O mounting, making it ideal for compact control cabinets and distributed control panels.
5. Diagnostics & Reliability
POINT I/O modules provide comprehensive diagnostics and configurable features. The 1734‑TOP supports modules with field diagnostics (e.g., 1734‑IB4D) and forms the foundation for reliable system operation.
Compatibility & Selection Guide
Compatible I/O Modules (Partial List)
The 1734‑TOP is compatible with a broad range of POINT I/O modules, including but not limited to:
Important: Always verify module compatibility with the terminal base before selection. The 1734‑TOP is suitable for 2‑wire devices. For 3‑wire sensors requiring additional power and common terminals, the 1734‑TOP3 (12‑terminal) is recommended.
When to Choose 1734‑TOP vs. 1734‑TOP3
Recommended Models & Ordering Information
System Components to Consider
Applications
The 1734‑TOP terminal base is used wherever POINT I/O modules are deployed, including:
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Machine Control – Local and remote I/O for packaging, material handling, and assembly machines
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Process Control – Distributed control panels for chemical, oil & gas, and water/wastewater applications
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Factory Automation – Discrete and analog I/O in manufacturing systems
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Safety Systems – Mounting POINT Guard I/O safety modules (e.g., 1734‑IB8S) in safety applications
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Control Cabinets – Space‑optimized I/O integration in compact panels
Frequently Asked Questions (FAQ)
Q1: What is the difference between 1734‑TOP and 1734‑TOP3?
The 1734‑TOP has 8 terminals and is designed for modules that do not require individual power and common wiring for each channel. The 1734‑TOP3 has 12 terminals and supports modules that require separate +24V and common connections (e.g., 3‑wire sensors). The TOP3 can always replace the TOP, but the TOP cannot replace the TOP3 in all cases.
Q2: What is the difference between 1734‑TOP and 1734‑TOPS?
Both provide the same 8‑terminal functionality. The difference is in the termination type: 1734‑TOP uses screw‑clamp terminals; 1734‑TOPS uses spring‑clamp terminals.
Q3: Which I/O modules are compatible with 1734‑TOP?
The 1734‑TOP is compatible with a wide range of digital I/O, analog I/O, and specialty modules. It is specifically required for some diagnostic modules like the 1734‑IB4D (diagnostic input) and is also compatible with many standard modules. Always check the module's installation instructions for the required terminal base.
Q4: Can the 1734‑TOP be used with safety modules?
Yes. Some POINT Guard safety I/O modules, such as the 1734‑IB8S safety input module, are compatible with the 1734‑TOP terminal base.
Q5: Does the 1734‑TOP support hot swapping?
Yes. The POINT I/O system supports Removal and Insertion Under Power (RIUP), allowing I/O modules to be replaced without powering down the system.
Q6: Is the 1734‑TOP still in production?
Yes, the 1734‑TOP remains in active lifecycle status and is widely available.
Q7: What is the width of the 1734‑TOP?
The terminal base has a width of 12 mm, enabling dense I/O mounting in space‑constrained applications.
Q8: Can I mount the 1734‑TOP vertically?
Yes. POINT I/O systems can be mounted horizontally or vertically with no derating required.
Q9: What certification does the 1734‑TOP carry?
Certifications include China CCC, IECEx Scheme, and Registro Italiano Navale. Always check the product label for specific certifications on your unit.
Q10: Where can I find detailed wiring information?
Refer to Rockwell Automation publication 1734‑IN028 for installation instructions and 1734‑UM016 for the POINT I/O user manual.
