1.Product Overview
The Allen-Bradley 1794-0B16P FLEX I/O™ 24V DC Sourcing Input Module delivers high-density discrete signal acquisition for harsh industrial environments. Designed for Rockwell’s distributed FLEX platform, this 16-channel module features IP67-rated epoxy encapsulation (–40°C to +70°C), resisting high-pressure washdowns, oils, and corrosive chemicals. It supports 24V DC sourcing inputs (current flows from sensor to module) with 1.5kV integrated surge suppression per channel. Each point includes optical isolation (500V AC continuous) and dual-color LED diagnostics (green=ON/red=fault). Tool-less 1794-TB3/B push-lock terminals accelerate wiring, while Studio 5000® enables per-channel filtering (0.1–16ms) for noise immunity. Ideal for interfacing proximity sensors, push buttons, and safety switches.
2.Critical Technical Specifications
Key performance parameters:
- Input Voltage: 10–30V DC (ON-state min. 15V DC @ 6mA)
- Input Type: Sourcing (PNP)
- Isolation: 500V AC field-to-backplane (IEC 61131-2 reinforced)
- Response Time: ≤1ms ON/OFF (software-adjustable filtering)
- Surge Protection: 1.5kV per channel (IEC 61000-4-5)
- Power Consumption: 85mA @ 5V DC backplane; 0.45W per channel
- Wire Gauge: 0.5–2.5mm² (20–14 AWG) via screwless terminals
- Certifications: UL 61010-1, ATEX II 3G, IECEx, SIL 2 (IEC 61508)
- EMC: EN 61326-3-1 (4kV ESD/10V/m RF immunity), EN 61000-4-4 (EFT 4kV)
3.Targeted Applications
Robust sensing in extreme conditions:
- Automotive Welding Lines: Robotic tool position verification in IP67 workcells
- Food Packaging: Washdown-rated proximity sensors for fillers (EHEDG/3-A compliant)
- Material Handling: Conveyor jam detection with vibration tolerance (5g @ 55Hz IEC 60068-2-6)
- Water Treatment: Corrosion-resistant float switch monitoring in flood zones
- Pharmaceuticals: Cleanroom door interlocks with 21 CFR Part 11 audit trails
- Mining: Explosion-protected limit switches (ATEX Zone 21)
- AGVs: Navigation sensor inputs in dusty warehouse environments
4.Competitive Advantages
Operational superiorities:
- Space Efficiency: 16 inputs in 35mm width (highest density in class)
- Diagnostic Precision: Real-time channel-level fault detection (open wire/short circuit)
- Installation Speed: 70% faster wiring vs. screw terminals with push-lock connectors
- Safety Integration: SIL 2 functional safety without external barriers
- Extreme Resilience: Sustains 95% humidity and chemical splashes (ISO 12944 C4)
- Lifecycle Economy: 10M+ mechanical cycles (50× relay lifespan)
- Energy Optimization: 0.1mA leakage current minimizes standby power
- Studio 5000® Integration: Pre-tested AOI blocks reduce SIL 2 validation time
5.Functional Capabilities
Advanced monitoring features:
- Adaptive Noise Filtering: Configurable 0.1–16ms debounce for mechanical contacts
- Voltage Threshold Adjustment: Software-defined ON-state voltage (12–28V DC)
- Sequence-of-Events Logging: 1ms timestamp resolution for fault forensics
- Redundancy Support: Input mirroring to backup controllers via produced tags
- Startup Diagnostics: Detects wiring faults during initialization (<50µs)
- Current Monitoring: Measures per-point consumption for predictive maintenance
- Hot-Swap Capability: Module replacement without system shutdown (1794-AENT adapters)
- Field Configurability: DIP switches override default filtering for legacy sensors
| Parameter Category | Specification / Details |
| Module Description | 16-Channel, 24V DC Sinking (NPN) Digital Output Module (POINT I/O™ System) |
| Output Type | Solid-State Transistor (Sinking) |
| Number of Channels | 16 |
| Rated Voltage | 24V DC (18–30V DC operating range) |
| Max Continuous Current | 0.5 A per channel (≤ 40°C)
Derated to 0.3 A/channel at 60°C |
| Max Inrush Current | 1.5 A for 20 ms |
| Leakage Current | ≤ 0.1 mA @ 30V DC |
| Voltage Drop (On-State) | ≤ 1.5V DC @ 0.5 A |
| Switching Frequency | ≤ 1 kHz (resistive load) |
| Response Time | Turn-On Delay: ≤ 100 μs
Turn-Off Delay: ≤ 1 ms |
| Isolation | Channel-to-Channel: None (common group)
Channel-to-Bus: 500V AC |
| Grouping | 2 groups (Channels 0–7 and 8–15), each with:
• Common power connection (V+ terminal)
• Shared fuse protection (external required) |
| Backplane Current Draw | 5V DC: 85 mA max
24V DC: 8 mA (logic power only) |
| Field Power Consumption | 24V DC via V+/V- terminals (external supply) |
| Status Indicators | Per Channel: Green LED (output active)
Module: Green/Red LED (status/fault) |
| Fusing Requirements | External fuse required per group (recommended: 4 A slow-blow per 8-channel group) |
| Surge Protection | 30V peak transient suppression per channel |
| Communication Interface | POINTBus via 1794 adapter (e.g., 1794-AENT/AENTR for EtherNet/IP) |
| Compatible Bases | 1794-TB3, 1794-TB3S (requires fuse holders) |
| Operating Temperature | -20°C to 60°C (-4°F to 140°F) |
| Agency Certifications | cULus Listed, CE, ATEX/IECEx Zone 2 (with approved base), RoHS |
| Connection Type | Removable 20-pin screw terminal (1794-EC1xx cables) or TB3/TB3S base |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are
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we are major in PLC,Sensors,HIM,Transmitters.
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