The Allen Bradley 1794-FLA is a FlexLogix Extended Local I/O Adapter Module designed to extend FLEX I/O systems beyond the primary local chassis in FlexLogix controller architectures. It enables distributed I/O expansion by linking remote FLEX I/O racks to the main FlexLogix controller, ensuring synchronized data exchange and stable system performance in modular automation environments.
This module is primarily used in FlexLogix systems where high-density I/O expansion and flexible cabinet layout are required. It supports extended-local I/O communication, allowing engineers to split FLEX I/O systems across multiple DIN rails while maintaining deterministic control behavior.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model Number | 1794-FLA |
| Product Family | FLEX I/O / FlexLogix |
| Module Type | Extended Local I/O Adapter |
| System Type | FlexLogix Controller System |
| Input Voltage | 24 V DC (19.2–31.2 V DC) |
| Input Current | 0.25–0.39 A |
| Power Dissipation | Up to 7.5 W |
| FlexBus Output Current | Max 653 mA @ 5.1 V DC |
| Isolation Voltage | 30 V DC (system design dependent) |
| Communication Function | Extended local FLEX I/O linking |
| Cable Type | 1794-CE1 / 1794-CE3 I/O interconnect cable |
| I/O Capacity Support | Up to 8 FLEX I/O modules per segment |
| Mounting Type | DIN rail |
| Operating Temperature | 0°C to 60°C |
| Function Role | Local expansion / extended I/O segmentation |
Physical Dimensions & Weight
| Mechanical Property | Specification |
|---|---|
| Overall Dimensions (L × W × H) | Approx. 94 × 69 × 87 mm |
| Combined Size Format | Compact modular FLEX I/O form factor |
| Net Weight | Approx. 0.26 kg |
Recommended Related Models
The 1794-FLA is part of the FlexLogix ecosystem and is typically used with controller and FLEX I/O modules.
| Related Model | Description |
|---|---|
| 1794-L33 | FlexLogix Controller |
| 1794-L34 | FlexLogix Controller (High memory version) |
| 1794-IB16 | Digital Input Module |
| 1794-OB16 | Digital Output Module |
| 1794-IE8 | Analog Input Module |
| 1794-OE4 | Analog Output Module |
| 1794-TB3 | Terminal Base Unit |
| 1794-CE1 | 1 ft I/O Interconnect Cable |
| 1794-CE3 | 3 ft I/O Interconnect Cable |
| 1794-AENT | EtherNet/IP FLEX I/O Adapter |
Popular Allen Bradley Automation Products
Allen Bradley systems are widely used in industrial automation for their modularity, reliability, and long lifecycle support in legacy and modern control architectures.
| Popular Model | Product Category |
|---|---|
| 1756-L85E | ControlLogix Controller |
| 1769-L36ERM | CompactLogix Controller |
| 5069-IF8 | Analog I/O Module |
| 2711P-T12C4D8 | PanelView HMI |
| 20G11NC072AA0NNNNN | PowerFlex 755 Drive |
| 1734-AENTR | POINT I/O Adapter |
| 1606-XLS240E | Industrial Power Supply |
| 1756-EN2TR | Ethernet/IP Communication Module |
| 1794-IE8 | FLEX I/O Analog Module |
| 25B-D013N114 | PowerFlex 525 Drive |
