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- 1794-IF2XOF2I
- ControlNet Flex I/O Adapter Module
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- 94 × 94 × 66 mm
- 2kg
- Xiamen, China
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1794-IF2XOF2I FLEX I/O 2 Input / 2 Output Analog Isolated Module – Detailed Technical Overview
1. Product Introduction
The 1794-IF2XOF2I is a FLEX I/O isolated analog combination module designed for distributed industrial automation systems. It integrates 2 analog inputs and 2 analog outputs, supporting both current and voltage signal types.
This module is widely used in process control applications where precise analog signal acquisition and output control are required in a compact distributed architecture.
It is part of the FLEX I/O 1794 family and is installed on a terminal base, communicating with PLC systems through a FLEX I/O adapter. The module is designed with electrical isolation between channels and system circuits, improving signal stability and protection in industrial environments.
2. Product Features
- 2-channel analog inputs
- 2-channel analog outputs
- Fully isolated input/output design
- Supports voltage and current signals (0–10V / 4–20mA)
- 16-bit high-resolution analog conversion
- Sigma-delta / precision ADC architecture
- Factory calibrated channels
- Channel fault detection capability
- DIN rail mounting system
- FLEX I/O modular distributed architecture
- LED status indicator
3. Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 1794-IF2XOF2I |
| Product Type | Isolated analog input/output module |
| Series | FLEX I/O 1794 Series |
| Input Channels | 2 isolated analog inputs |
| Output Channels | 2 isolated analog outputs |
| Input Signal Types | 4–20 mA / 0–20 mA / ±10 V |
| Output Signal Types | 4–20 mA / 0–20 mA / ±10 V |
| Resolution | 16-bit high precision |
| Conversion Type | Sigma-Delta ADC / DAC |
| Input Accuracy | High precision industrial grade (±0.1–0.2% FS typical) |
| Output Accuracy | ±0.1–0.2% FS typical |
| FlexBus Current | ~50 mA |
| External Power Supply | 24V DC (19.2–31.2V DC) |
| External Current Draw | ~100–180 mA @ 24V DC |
| Power Dissipation | ~3.3 W |
| Thermal Dissipation | ~11.3 BTU/hr |
| Isolation Voltage | 120V–250V continuous isolation (system dependent) |
| Channel Isolation | Input/output/channel/system isolation |
| Calibration | Factory calibrated (adjustable if required) |
| Communication Method | Block transfer (BTR/BTW) |
| Response Time | ~10–20 ms typical |
| Indicator Lights | 1 red/green status LED |
| Mounting Type | DIN rail |
| Terminal Base | 1794-TB2 / TB3 / TB3S / TB3T compatible |
| Operating Temperature | -20°C to 55°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Vibration Resistance | 5g (10–500 Hz) |
| Shock Resistance | 30g |
| IP Rating | IP20 |
| Dimensions | 94 × 94 × 66 mm |
| Weight | 2.0 kg (shipping) / ~0.26 kg module (typical) |
4. Product Function Description
The 1794-IF2XOF2I functions as a dual-purpose analog interface module capable of both measurement and control.
On the input side, it receives analog signals from field instruments such as transmitters and sensors, converting them into digital signals for PLC processing.
On the output side, it generates analog control signals used to drive actuators, valves, and process control devices.
The key feature of this module is full isolation, which protects the control system from electrical noise, ground loops, and field-side disturbances. This makes it suitable for demanding industrial environments where signal integrity is critical.
5. Product Applications
The 1794-IF2XOF2I is widely used in process automation and industrial control systems requiring isolated analog I/O functionality.
Typical Applications
- Chemical processing systems
- Oil and gas production facilities
- Water treatment and wastewater plants
- Power generation control systems
- HVAC automation systems
- Pharmaceutical manufacturing
- Industrial batching systems
- Pump and valve control systems
- Remote process monitoring stations
- SCADA distributed control systems
Typical Field Devices
- Pressure transmitters
- Flow sensors
- Level transmitters
- Temperature transmitters
- Control valves
- Variable speed drives (VFDs)
- Industrial analog actuators
6. Product Advantages
6.1 Full Isolation Design
Provides strong electrical isolation between input, output, and system, improving safety and stability.
6.2 Dual Input and Output Function
Combines analog acquisition and control in a single compact module.
6.3 High Precision Signal Handling
16-bit resolution ensures accurate process measurement and control.
6.4 Flexible Signal Support
Compatible with both voltage and current industrial standards.
6.5 Industrial Reliability
Stable operation in noisy and harsh electrical environments.
6.6 Modular FLEX I/O Integration
Easily integrates into distributed I/O systems for scalable automation.
6.7 Reduced Wiring Complexity
Combines multiple functions into one module, reducing cabinet space and wiring cost.
7. Brand Overview
This product belongs to a globally recognized industrial automation technology provider specializing in:
- PLC control systems
- Distributed I/O architectures
- Industrial communication networks
- Process automation solutions
- Safety and motion control systems
Its solutions are widely used in oil & gas, chemical, power generation, water treatment, and manufacturing industries due to high reliability and long lifecycle support.
8. Product Series Information
Series Name
FLEX I/O 1794 Series
Series Type
Distributed analog I/O system
Key Characteristics
- Modular distributed architecture
- Mixed analog input/output support
- High isolation specialty modules
- DIN rail mounting system
- Hot-swappable design capability
- Industrial-grade reliability
The 1794-IF2XOF2I is a specialty isolated analog combination module in this platform.
9. Recommended Related Models (Same Series or Similar)
| Model | Product Type | Function | Dimensions | Weight (kg) | Key Parameters |
|---|---|---|---|---|---|
| 1794-IF2XOF2I | Isolated AI/AO module | 2AI + 2AO isolated | 94 × 94 × 66 mm | 0.26 kg | Full isolation |
| 1794-IE8 | Analog input module | 8-channel AI | 94 × 94 × 69 mm | 0.11 kg | Standard input |
| 1794-OE4 | Analog output module | 4-channel AO | 94 × 94 × 69 mm | 0.10 kg | Output control |
| 1794-IE12 | Analog input module | 12-channel AI | 94 × 94 × 69 mm | 0.12 kg | High density input |
| 1794-IE4XOE2 | Analog combo module | 4AI + 2AO | 94 × 94 × 69 mm | 0.12 kg | Mixed I/O |
10. Recommended Popular Models from Same Brand
| Model | Product Type | Function | Dimensions | Weight (kg) | Key Parameters |
|---|---|---|---|---|---|
| 1756-L81E | PLC controller | ControlLogix CPU | 145 × 175 × 52 mm | 0.92 kg | High-performance control |
| 1769-L33ER | Compact PLC | CompactLogix system | 118 × 87 × 87 mm | 0.60 kg | Ethernet integrated |
| 1734-AENTR | Ethernet adapter | POINT I/O system | 75 × 75 × 55 mm | 0.18 kg | Distributed I/O |
| 2711P-T10C4D8 | HMI panel | Operator interface | 271 × 212 × 60 mm | 1.80 kg | Touchscreen HMI |
| 20-COMM-E | Drive communication module | Ethernet interface | 140 × 95 × 30 mm | 0.22 kg | Industrial networking |
11. Installation Notes
- Install on compatible FLEX I/O terminal base
- Ensure proper grounding for isolation performance
- Keep analog wiring separated from power cables
- Verify stable 24V DC supply
- Avoid noise-sensitive routing near high voltage lines
- Secure DIN rail installation properly
12. Maintenance Recommendations
- Periodically check isolation performance
- Inspect wiring integrity and shielding
- Monitor signal drift or noise interference
- Maintain clean and dry cabinet conditions
- Replace module if output instability occurs
13. Summary
The 1794-IF2XOF2I is a high-reliability isolated analog input/output module designed for demanding industrial environments. Its full isolation architecture, dual-function design, and stable signal performance make it ideal for process control systems requiring both measurement and precise analog control in distributed automation setups.