Allen Bradley 1794-TB3TS Flex I/O Terminal Base Unit
Allen Bradley 1794-TB3TS Flex I/O Terminal Base Unit
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Brand:Allen Bradley PLC Item No.:1794-TB3TS Product Origin:USA Product Dimensions:94 x 94 x 69 mm Product Weight:0.2 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen-Bradley 1794-TB3TS FLEX I/O Terminal Base Unit is an interface component designed for modular distributed I/O installations. Manufactured by Rockwell Automation, it provides the field-wiring connection point for compatible FLEX I/O modules, helping integrate sensors, actuators, and other industrial devices into an automation system.
Unlike an active I/O module or communication adapter, the 1794-TB3TS primarily serves as a terminal and mounting interface. It works as part of a larger FLEX I/O assembly, where the installed I/O module handles signal processing and the communication adapter connects the system to the controller network.
Its modular architecture supports organized wiring and flexible system expansion. For maintenance projects, the terminal base can be an important replacement component when field connections or the existing base require attention.
Before purchasing or installing the 1794-TB3TS, users should confirm compatibility with the selected FLEX I/O module, adapter, and existing wiring arrangement. Correct terminal identification and installation procedures are essential for reliable operation.
Technical Specifications
Parameter
Description
Brand
Allen-Bradley
Manufacturer
Rockwell Automation
Model
1794-TB3TS
Product Series
FLEX I/O
Product Type
Terminal Base Unit
System Type
Distributed I/O
Function
Field Wiring and I/O Module Connection
Module Compatibility
Compatible FLEX I/O modules
Communication Function
Provided by a separate FLEX I/O adapter
Application
Industrial Automation and Control
Dimensions
94 × 94 × 69 mm
Weight
0.2 kg / 0.44 lb
Recommended Related Models
The following components are relevant to Allen-Bradley FLEX I/O system configuration and maintenance:
1794-TB3 – FLEX I/O terminal base unit for compatible I/O modules.
1794-TB3S – FLEX I/O terminal base with screw-clamp connections.
1794-TB3T – FLEX I/O terminal base with compatible terminal connection design.
1794-IB16 – FLEX I/O 16-point digital input module.
1794-OB16 – FLEX I/O 16-point digital output module.
1794-AENTR – FLEX I/O EtherNet/IP communication adapter.
Popular Related Models
Allen-Bradley 1794-TB3 FLEX I/O Terminal Base Unit
Allen-Bradley 1794-TB3S FLEX I/O Terminal Base Unit
Allen-Bradley 1794-TB3T FLEX I/O Terminal Base Unit
The Allen-Bradley 1794-TB3TS is a terminal base unit designed for the Allen-Bradley FLEX I/O distributed automation system. It provides the electrical connection between compatible FLEX I/O modules and field wiring, supporting signal distribution and modular I/O installation in industrial control applications.
Typical applications include:
Distributed I/O systems: Connecting field devices to FLEX I/O modules in distributed control architectures.
Factory automation: Supporting signal connections for sensors, switches, and actuators.
Machine control: Providing terminal connections for digital and analog I/O modules.
Process automation: Organizing field wiring for monitoring and control applications.
Control panel integration: Supporting modular I/O arrangements in industrial cabinets.
Remote equipment monitoring: Connecting field signals to controllers through compatible FLEX I/O adapters.
Advantages and Key Features
FLEX I/O System Compatibility
The 1794-TB3TS is designed for use with the Allen-Bradley FLEX I/O platform, providing a modular connection point for compatible I/O modules.
Organized Field Wiring
Its terminal arrangement simplifies the connection of field devices and helps keep control-panel wiring organized.
Modular Installation
The terminal base supports modular FLEX I/O configurations, allowing users to install and maintain compatible I/O modules within a distributed control system.
Secure Electrical Connections
The terminal base provides connection points for field wiring, helping maintain reliable electrical connections when installed and tightened according to manufacturer requirements.
Industrial Automation Integration
It supports applications involving sensors, actuators, switches, and other field devices connected through compatible FLEX I/O modules.
Convenient Maintenance
The modular design makes it easier to replace compatible I/O modules without redesigning the entire field-wiring arrangement, subject to the system's installation and safety procedures.
Technical FAQs
1. What is the main function of the Allen-Bradley 1794-TB3TS?
The 1794-TB3TS is a FLEX I/O terminal base unit. It provides the field-wiring connections and electrical interface required by compatible FLEX I/O modules.
2. Which product family does the 1794-TB3TS belong to?
It belongs to the Allen-Bradley 1794 FLEX I/O distributed I/O family manufactured by Rockwell Automation.
3. Is the 1794-TB3TS a standalone I/O module?
No. It is a terminal base rather than an independent input or output module. It must be used with a compatible FLEX I/O module and system configuration.
4. Which I/O modules can be installed on the 1794-TB3TS?
Compatibility depends on the terminal-base design and the requirements of the selected FLEX I/O module. Check the module's installation documentation and compatibility information before assembly.
5. Does the 1794-TB3TS provide communication with a PLC?
The terminal base itself does not provide network communication. Communication is handled by the FLEX I/O adapter and the connected control system.
6. What types of field devices can be connected through this terminal base?
Depending on the installed I/O module, connected devices may include proximity sensors, push buttons, limit switches, solenoid valves, and other compatible industrial field devices.
7. Can the terminal base be replaced without changing the entire FLEX I/O system?
A replacement may be possible if the new terminal base is fully compatible with the installed I/O module and wiring arrangement. Confirm the catalog number and connection requirements before replacement.
8. What should be checked if an installed I/O module does not operate correctly?
Inspect the terminal-base connections, module seating, field wiring, supply voltage, adapter status, and controller diagnostics. Also check whether the installed module is compatible with the terminal base.
9. Does the 1794-TB3TS require a separate communication adapter?
Yes. In a FLEX I/O system, an appropriate communication adapter is required to connect the I/O assembly to the controller network. The terminal base does not perform this function.
10. What precautions should be taken when installing the 1794-TB3TS?
Disconnect power before installation or wiring work. Verify terminal assignments, conductor specifications, module compatibility, and the manufacturer's installation instructions before energizing the system.
