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1756-DNB ControlLogix DeviceNet Bridge Scanner Module Firmware Upgradeable -20C to 60C Range
| Place of Origin | USA |
| Brand Name | ControlLogix Communication Modules |
| Certification | CE |
| Model Number | 1756-DNB |
Product Overview
1756-DNB is a ControlLogix DeviceNet bridge and scanner module used in industrial network systems, PLC control cabinets, factory automation lines, and maintenance replacement projects. It is designed to connect a 1756 PLC system with DeviceNet field devices, including distributed I/O, sensors, drives, motor starters, valve islands, and other networked automation components.
This module is commonly required in existing production systems where DeviceNet is still used as part of the machine communication architecture. It is suitable for maintenance teams that need to restore communication between the main PLC system and field-level devices without redesigning the complete control network.
Main Features
- ControlLogix 1756 series DeviceNet bridge and scanner module
- Used for communication between PLC systems and DeviceNet field devices
- Suitable for distributed I/O, motor control, sensors, and valve network applications
- Common spare part for legacy industrial network maintenance
- Useful for production line repair, network troubleshooting, and system recovery
Technical Specifications
| Model | 1756-DNB |
| Product Type | ControlLogix DeviceNet Bridge Scanner Module |
| Series | ControlLogix 1756 |
| Network Type | DeviceNet |
| Function | DeviceNet Communication and Scanner Function |
| Application | PLC Network Integration and Field Device Communication |
| Mounting | Installed in 1756 PLC Chassis |
| Software Check | Confirm Studio 5000 project, firmware, and DeviceNet configuration |
Compatible System and Chassis Use
1756-DNB is used in ControlLogix 1756 chassis systems with controllers, power supplies, I/O modules, and communication hardware. Before replacement, users should confirm the installed chassis, slot position, firmware revision, DeviceNet node settings, scanner configuration, network power, cable condition, and project configuration. DeviceNet systems are sensitive to addressing, termination, and wiring quality, so the network should be checked carefully.
Industrial Applications
This module is used in packaging machines, conveyor systems, material handling lines, motor control panels, valve control systems, process skids, assembly equipment, and factory automation networks. It is especially useful for plants maintaining older DeviceNet systems where compatible spare parts are still required.
Maintenance and Replacement Notes
When replacing 1756-DNB, confirm the complete catalog number, firmware revision, DeviceNet address settings, network configuration, chassis compatibility, and original nameplate. Communication faults may also come from DeviceNet power supply failure, incorrect termination, damaged trunk cables, drop line issues, duplicate node addresses, or field device faults.
Related Models
Related models include 1756-DNB, 1756-DHRIO, 1756-RIO, 1756-CN2R, and 1756-EN2T. These models may differ by supported network type, bridge function, scanner function, lifecycle status, or system migration path.
Inquiry and Supply Notes
DF Automatic supplies ControlLogix DeviceNet modules, ControlNet modules, EtherNet/IP bridge modules, PLC controllers, I/O modules, power supplies, chassis, terminal blocks, and industrial automation spare parts for equipment repair and factory maintenance.
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