Allen Bradley 1794-TB2 Flex I/O Terminal Base Unit
Allen Bradley 1794-TB2 Flex I/O Terminal Base Unit
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Brand:Allen Bradley PLC Item No.:1794-TB2 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-TB2 Flex I/O Terminal Base Unit is a key component in Flex I/O distributed control systems. It provides the physical wiring interface between field devices and I/O modules, enabling flexible and modular system design.
Each I/O module plugs into the terminal base, which handles signal routing, power distribution, and communication interface through the Flex I/O backplane. This design allows modules to be replaced without disturbing field wiring, significantly improving maintenance efficiency.
The 1794-TB2 is widely used in industrial automation systems where modularity, scalability, and reduced wiring complexity are important design requirements.
Technical Specifications
Parameter
Specification
Product Model
1794-TB2
Product Type
Flex I/O Terminal Base Unit
Brand
Allen-Bradley
System Platform
Flex I/O
Function
Wiring interface for I/O modules
Mounting Type
DIN rail
Module Compatibility
Digital / analog Flex I/O modules
Wiring Type
Screw clamp terminal
Application
Distributed industrial automation
Dimensions
94 × 94 × 69 mm
Weight
0.2 kg (0.44 lb)
Industrial Applications
The Allen-Bradley 1794-TB2 is a Flex I/O terminal base unit used as the wiring interface between Flex I/O modules and field devices. It provides the physical and electrical connection points for digital and analog I/O modules in distributed automation systems.
Typical applications include:
PLC-based distributed I/O systems
Manufacturing automation panels
Conveyor and material handling systems
Packaging and assembly machines
Process control systems
Remote I/O installations
Industrial machine control systems
Factory automation systems
Product Advantages
Provides secure wiring interface for Flex I/O modules
Modular plug-in design for easy replacement
Supports both digital and analog I/O modules
DIN rail mounting for flexible installation
Reduces panel wiring complexity
Enables quick module replacement without rewiring
Strong mechanical and electrical connection system
Compatible with Flex I/O distributed architectures
Technical FAQs
1. What is the main function of this module?
It serves as the terminal base that connects Flex I/O modules to field wiring.
2. Which system uses this base unit?
It is part of the Allen-Bradley Flex I/O distributed I/O platform.
3. What does it connect?
It connects I/O modules to field devices and system backplane communication.
4. Can it be reused?
Yes, the terminal base remains installed while I/O modules can be replaced.
5. What types of modules are supported?
Digital input/output, analog input/output, relay, and specialty Flex I/O modules.
6. How is it mounted?
It mounts on a DIN rail as part of a modular Flex I/O assembly.
7. Why is a terminal base needed?
Because it provides wiring termination and electrical interface for I/O modules.
8. Does it reduce wiring time?
Yes, it allows pre-wired field connections and fast module replacement.
9. What industries use it?
Manufacturing, automotive, packaging, oil & gas, and process industries.
10. Is it part of the control system logic?
No, it is purely a physical wiring and connection interface.
