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- 1794-IB16XT
- ControlNet Flex I/O Adapter Module
- USA
- 94 × 94 × 69 mm
- 0.11kg
- Xiamen, China
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1794-IB16XT FLEX XT 16-Point DC Input Module – Detailed Technical Overview
1. Product Introduction
The 1794-IB16XT is a FLEX XT series industrial-grade 16-channel DC digital input module designed for harsh and extreme temperature environments. It is used in distributed control systems to collect ON/OFF status signals from field devices such as sensors, switches, and relays.
This module is part of an extended temperature FLEX I/O architecture, designed specifically for environments where standard I/O modules may not operate reliably.
The “XT” version is optimized for improved thermal resistance and environmental robustness, making it suitable for outdoor control cabinets, high-temperature process areas, and heavy industrial automation systems.
It connects through a FLEX I/O terminal base system and communicates with the controller via the backplane architecture, enabling modular expansion and fast maintenance.
2. Product Features
- 16-channel 24V DC sinking digital inputs
- FLEX XT extreme temperature design
- Industrial distributed I/O compatibility
- LED status indicators for each input channel
- Compact modular plug-in structure
- DIN rail mounting system
- Hot-swappable capability
- High vibration and shock resistance
- Stable operation in harsh environments
- Conformal coating option depending on configuration
3. Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 1794-IB16XT |
| Product Type | FLEX XT DC digital input module |
| Series | FLEX I/O XT Series |
| Input Channels | 16 channels |
| Input Type | 24V DC sinking |
| Input Voltage Range | 24V DC nominal (approx. 10–31.2V DC) |
| ON-State Current | ~2–4 mA per channel |
| FlexBus Current | ~30 mA |
| Power Supply | 24V DC system |
| Power Dissipation | ~2 W (typical) |
| Isolation | Field-to-system basic isolation |
| Indicator Lights | 16 channel LED indicators |
| Mounting Type | DIN rail / panel mounting |
| Enclosure Type | Open-style industrial module |
| IP Rating | IP20 (cabinet installation) |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Vibration Resistance | 5g (10–500 Hz) |
| Shock Resistance | 30g |
| Humidity Range | 5%–95% non-condensing |
| Dimensions | 94 × 94 × 69 mm |
| Weight | 0.11 kg |
4. Product Function Description
The 1794-IB16XT is responsible for acquiring digital input signals from field devices and transmitting them to the PLC system through the FLEX backplane.
Each of the 16 channels continuously monitors the presence or absence of a 24V DC signal. When a signal is detected, the module converts it into a digital status bit for controller processing.
The XT version is specifically engineered to maintain stable signal acquisition in high-temperature or thermally unstable environments.
It does not perform control logic; instead, it acts as a reliable interface between field wiring and the control system.
5. Product Applications
The 1794-IB16XT is widely used in industrial automation systems exposed to harsh environmental conditions.
Typical Applications
- Outdoor industrial control cabinets
- Oil and gas production systems
- Chemical processing plants
- Mining equipment automation
- Steel and metallurgy systems
- Power generation auxiliary systems
- High-temperature manufacturing lines
- Water treatment outdoor stations
- Heavy machinery control systems
- Remote distributed I/O installations
Typical Field Devices
- Proximity switches
- Limit switches
- Push buttons
- Relay contacts
- Safety interlocks
- Position sensors
6. Product Advantages
6.1 Extended Temperature Capability
Operates reliably in environments from -20°C to +70°C, suitable for extreme industrial conditions.
6.2 High Environmental Resistance
Designed for vibration, shock, humidity, and electrical noise resistance.
6.3 Compact Modular Structure
Allows high-density input integration in a small footprint.
6.4 Fast Maintenance
Hot-swappable design reduces downtime during replacement.
6.5 Stable Signal Acquisition
Provides consistent performance under fluctuating industrial conditions.
6.6 Simple System Expansion
Easily integrated into FLEX XT distributed I/O systems.
6.7 Reduced Wiring Complexity
Modular terminal base design simplifies field wiring layout.
7. Brand Overview
This product belongs to a globally established industrial automation manufacturer specializing in:
- PLC systems
- Distributed I/O platforms
- Industrial control networks
- Safety and motion systems
- Process automation solutions
Its equipment is widely used across automotive, oil & gas, energy, manufacturing, and infrastructure sectors, known for durability, system integration capability, and long lifecycle support.
8. Product Series Information
Series Name
FLEX I/O XT Series
Series Type
Extreme environment distributed I/O system
Key Characteristics
- Extended temperature range (-20°C to +70°C)
- Industrial-grade environmental protection
- Modular I/O expansion
- DIN rail mounting
- Hot-swappable modules
- Compatible with FLEX I/O architecture
- Designed for harsh industrial conditions
The 1794-IB16XT belongs to the standard 16-channel digital input family within the XT platform.
9. Recommended Related Models (Same Series or Similar)
| Model | Product Type | Function | Dimensions | Weight (kg) | Key Parameters |
|---|---|---|---|---|---|
| 1794-IB16XT | XT DC input module | 16-channel input | 94 × 94 × 69 mm | 0.11 kg | Extreme temperature |
| 1794-IB16 | Standard DC input module | 16-channel input | 94 × 94 × 69 mm | 0.11 kg | General purpose |
| 1794-IB8 | DC input module | 8-channel input | 94 × 94 × 69 mm | 0.10 kg | Compact input |
| 1794-OB16 | DC output module | 16-channel output | 94 × 94 × 69 mm | 0.30 kg | Sourcing output |
| 1794-TB3XT | XT terminal base | Wiring base | 94 × 94 × 69 mm | 0.19 kg | Harsh environment base |
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 processor |
| 1769-L33ER | Compact PLC | CompactLogix controller | 118 × 87 × 87 mm | 0.60 kg | Integrated Ethernet |
| 1734-AENTR | Ethernet adapter | POINT I/O communication | 75 × 75 × 55 mm | 0.18 kg | Distributed I/O network |
| 2711P-T10C4D8 | HMI panel | Operator interface | 271 × 212 × 60 mm | 1.80 kg | Industrial touchscreen |
| 20-COMM-E | Drive communication module | Ethernet interface | 140 × 95 × 30 mm | 0.22 kg | Industrial Ethernet |
11. Installation Notes
- Ensure XT-compatible terminal base selection
- Maintain proper grounding in control cabinet
- Separate signal wiring from power lines
- Confirm stable 24V DC supply
- Avoid mechanical stress on module connectors
- Secure DIN rail installation firmly
12. Maintenance Recommendations
- Regularly check LED status indicators
- Inspect wiring terminals for looseness
- Monitor input signal stability
- Maintain clean and dry enclosure environment
- Replace module if abnormal behavior occurs
13. Summary
The 1794-IB16XT is an industrial-grade 16-channel DC input module designed for extreme environmental conditions. Its extended temperature capability, stable signal processing, and modular architecture make it suitable for demanding industrial automation systems.
It is especially effective in outdoor, high-temperature, and heavy-duty industrial applications where reliability and continuous operation are critical.