ProductPRODUCT
Featured products
Contact Us
- Allen Bradley
- 1756-IB16DK
- ControlLogix ControlNet Communication Module
- USA
- 14.0 × 13.5 × 3.5 cm
- 0.25kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 5
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
Industrial Technical Report – 1756-IB16DK ControlLogix Digital Input Module
Product Overview
The 1756-IB16DK is a ControlLogix digital input module designed for high-density DC input signal acquisition in industrial automation systems. It provides 16-point sinking input channels for monitoring digital field devices such as switches, sensors, relays, and industrial signaling equipment.
This module is engineered for reliable signal detection in high-speed automation environments where accurate and fast input status monitoring is required. It is commonly used in machine control systems, production lines, and process automation applications.
The DK variant is typically associated with enhanced diagnostic capability and channel-level fault detection, improving system reliability and maintenance efficiency.
Brand Information
The product belongs to a globally recognized industrial automation ecosystem specializing in programmable logic controllers, distributed I/O systems, industrial networking, and motion control technologies.
It is widely applied in:
- Industrial automation systems
- Manufacturing control systems
- Process monitoring environments
- Energy and utility systems
- Machine safety and control systems
Key characteristics include:
- High-density digital input capability
- Fast signal response performance
- Channel-level diagnostics
- Industrial-grade reliability
- Modular system integration
Product Series
ControlLogix Digital I/O Platform
The 1756-IB16DK belongs to the ControlLogix digital input module family, designed for scalable PLC-based automation systems.
Key system features include:
- 16-channel DC digital input
- Sink-type input architecture
- High-speed input detection
- Per-channel diagnostics support
- Modular chassis-based design
- Hot-swap capability (RIUP supported)
Supported input devices include:
- Proximity sensors
- Limit switches
- Push buttons
- Relay contacts
- PLC-level digital signals
The module integrates directly into ControlLogix chassis backplane architecture.
Technical Parameters
Detailed Specification Table
| Parameter | Specification |
|---|---|
| Model | 1756-IB16DK |
| Product Type | Digital Input Module |
| Series | ControlLogix Digital I/O |
| Input Type | 24V DC sinking input |
| Channels | 16-point input |
| Input Voltage Range | 10–31.2V DC |
| Nominal Voltage | 24V DC |
| On-State Voltage | ≥ 10V DC |
| Off-State Voltage | ≤ 5V DC |
| Input Current | ~3–6 mA per channel |
| Input Delay Time | 1–8 ms selectable filter |
| Signal Isolation | Channel-to-backplane isolation |
| Diagnostics | Per-channel fault detection |
| Filter Options | Programmable input filtering |
| Backplane Current (5V DC) | ~120–150 mA |
| Power Dissipation | ~3 W |
| RIUP Support | Yes (hot-swappable) |
| Mounting Type | ControlLogix chassis slot |
| Slot Width | 1 slot |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Vibration Resistance | Industrial rated |
| Shock Resistance | Industrial rated |
| EMC Protection | Industrial immunity design |
| Dimensions | 14.0 × 13.5 × 3.5 cm |
| Weight kg（ ） | ~0.25 kg |
Product Description
The 1756-IB16DK is designed to collect and process discrete DC input signals from industrial field devices. Each of its 16 channels independently detects ON/OFF states and transmits them to the PLC processor through the ControlLogix backplane.
The module includes diagnostic functionality that allows detection of wiring faults, open circuits, and signal anomalies. This improves system reliability and reduces troubleshooting time in industrial environments.
It is commonly used in medium to large-scale automation systems where dense digital signal acquisition is required.
Product Applications
Industrial Automation Systems
Used in:
- Assembly line monitoring
- Machine status detection
- Conveyor control systems
- Packaging machinery
Manufacturing Industry
Applied in:
- Automotive production lines
- CNC machine monitoring
- Robotics systems
- Material handling equipment
Process Control Systems
Used in:
- Chemical plant monitoring
- Pharmaceutical systems
- Food processing equipment
- Batch control systems
Energy Systems
Used in:
- Power distribution monitoring
- Substation status control
- Renewable energy systems
- Utility automation
Infrastructure Systems
Used in:
- Traffic signal systems
- Building automation
- Security monitoring systems
- Public utility control
Product Advantages
1. High-Density Input Capability
Provides 16-channel compact digital input acquisition.
2. Fast Response Time
Ensures rapid detection of field signal changes.
3. Channel-Level Diagnostics
Supports fault detection per input channel.
4. Industrial Reliability
Designed for harsh industrial environments.
5. Modular Integration
Fully compatible with ControlLogix chassis systems.
6. Maintenance Efficiency
Reduces troubleshooting time through diagnostics.
Recommended Models (Same Series or Related)
ControlLogix Digital I/O Modules
| Model | Type | Function | Key Feature | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-IB16DK | Digital Input | 16-point DC input | Diagnostic input channels | 14.0×13.5×3.5 cm | 0.25 kg |
| 1756-IB16 | Digital Input | Standard input module | 16-channel DC input | 14.0×13.5×3.5 cm | 0.24 kg |
| 1756-IB32 | Digital Input | High-density input | 32-channel input | 14.8×14.2×3.8 cm | 0.32 kg |
| 1756-OB16E | Digital Output | Output module | Electronic output | 14.0×13.5×3.5 cm | 0.26 kg |
| 1756-OW16I | Relay Output | Relay output module | Isolated outputs | 14.0×13.5×3.8 cm | 0.35 kg |
| 1756-IH16I | High-speed Input | Fast input module | High-speed detection | 14.0×13.5×3.5 cm | 0.28 kg |
Recommended Popular Models (Same Platform Ecosystem)
Widely Used ControlLogix Modules
| Model | Function | Network | Role | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-L85E | PLC Controller | EtherNet/IP | Main processor unit | 15×14×13 cm | 0.65 kg |
| 1756-EN2TR | Ethernet Module | EtherNet/IP | Industrial communication | 13×14×12 cm | 0.48 kg |
| 5069-L320ER | Advanced PLC | EtherNet/IP | High-performance control | 13×10×9 cm | 0.54 kg |
| 1734-AENTR | I/O Adapter | EtherNet/IP | Remote I/O gateway | 7×7×7 cm | 0.20 kg |
| 1769-L36ERM | Compact PLC | Ethernet | Mid-range controller | 15×11×10 cm | 0.75 kg |
Installation Notes
Proper installation ensures stable signal acquisition performance.
Key requirements:
- Correct 24V DC wiring polarity
- Proper shielding of input cables
- Secure terminal tightening
- Avoid high-voltage interference lines
- Configure input filters in PLC program
Maintenance Characteristics
- Low maintenance requirement
- Hot-swappable module design
- Built-in diagnostic capability
- High operational reliability
- Long lifecycle operation
Final Summary
The 1756-IB16DK is a 16-channel DC digital input module designed for ControlLogix systems, offering high-density signal acquisition with enhanced diagnostics.
Its key advantage lies in reliable industrial signal detection combined with channel-level fault diagnostics, making it suitable for complex automation systems requiring stable and efficient input monitoring.