The Allen Bradley 1794-IE12 is a FLEX I/O analog input module designed to provide 12 single-ended input channels for voltage and current signal acquisition in industrial automation systems. It is widely used in distributed control architectures where multiple analog signals—such as pressure, flow, level, or temperature transmitter outputs—must be collected efficiently and reliably.
This module supports both voltage and current inputs, making it a flexible solution for mixed instrumentation environments in process control, manufacturing automation, and OEM machine systems.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model Number | 1794-IE12 |
| Product Family | FLEX I/O |
| Module Type | Analog Input Module |
| Input Channels | 12 single-ended inputs |
| Input Types | Voltage (±10V / 0–10V), Current (0–20 mA / 4–20 mA) |
| Resolution | 16-bit |
| Conversion Time | ~8 ms (all channels) |
| Input Configuration | Non-isolated channels |
| Accuracy | ~0.1% of full scale at 25°C |
| Input Impedance | >1 MΩ (voltage), <100 Ω (current) |
| Backplane Power | 5V DC via FLEX system |
| FlexBus Current Draw | ~30–80 mA |
| Power Supply | 24V DC (10–31.2V DC operating range) |
| Power Dissipation | ~1.2–2.0 W |
| Isolation Voltage | Field-to-system isolation (no channel-to-channel isolation) |
| Diagnostics | Module status LED |
| Terminal Base | 1794-TB3G / 1794-TB3GS |
| Mounting Type | FLEX I/O DIN rail system |
| Operating Temperature | -20°C to 60°C |
| Protection Class | IP20 |
Physical Dimensions & Weight (L × W × H Combined)
| Parameter | Specification |
|---|---|
| Dimensions (L × W × H) | 94 × 69 × 69 mm |
| Weight | Approx. 0.10–0.15 kg |
Recommended Related Models
The 1794-IE12 is typically used alongside other FLEX I/O analog and digital modules to build complete distributed control systems.
| Related Model | Description |
|---|---|
| 1794-IE8 | 8-channel analog input module |
| 1794-OE4 | Analog output module |
| 1794-IB16 | Digital input module |
| 1794-OB16 | Digital output module |
| 1794-IA16 | AC input module |
| 1794-TB3G | Terminal base unit |
| 1794-AENT | EtherNet/IP adapter |
| 1794-AENTR | Redundant EtherNet/IP adapter |
| 1794-ACN15 | ControlNet adapter |
| 1794-ASB | Remote I/O adapter |
Popular Allen Bradley Automation Products
Allen Bradley FLEX I/O systems are widely used in industrial environments for scalable, modular control architectures and long lifecycle support.
| Popular Model | Product Category |
|---|---|
| 1756-L85E | ControlLogix Controller |
| 1769-L36ERM | CompactLogix Controller |
| 5069-IF8 | Analog Input 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 |
