Allen-Bradley 1756-DNB/E DeviceNet Scanner Module

Availability: 6 left in stock

The Allen-Bradley 1756-DNB/E is a Series E DeviceNet scanner module designed for integration within the ControlLogix platform. This module serves...

SKU: 1756-DNB/E

Manufacturer: Allen-Bradley
Product No.: 1756-DNB/E
Product Type: DeviceNet Scanner Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 260g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

The Allen-Bradley 1756-DNB/E is a Series E DeviceNet scanner module designed for integration within the ControlLogix platform. This module serves as a robust communication bridge, allowing the ControlLogix controller to manage and monitor field-level devices connected via a DeviceNet network. By offloading network management tasks from the main processor, the 1756-DNB/E ensures efficient data exchange and reliable I/O performance in demanding industrial environments.

Features

Supports up to 64 nodes on a single DeviceNet network.
Optimized Series E hardware architecture for improved processing and stability.
Integrated USB port for localized network configuration and diagnostic access.
Automatic baud rate detection for simplified network integration.
Supports multiple data rates: 125 Kbps, 250 Kbps, and 500 Kbps depending on cable length.
Occupies a single slot in any standard ControlLogix chassis.

Applications

This module is widely utilized in automated manufacturing, material handling systems, and large-scale process control applications where distributed I/O and intelligent field device integration are required.

Technical Specifications

Model	1756-DNB/E (Series E)
Platform	ControlLogix
Network Capacity	64 Nodes
Power Dissipation	3.5 Watts
Thermal Dissipation	11.9 BTU/hr
Backplane Current	400 mA at 5.1 VDC
External Voltage	11 to 25 VDC
Weight	0.26 kg

Installation Guidelines

Ensure the ControlLogix chassis is powered down before inserting or removing the module to prevent electrical damage.
The module must be seated fully in the chassis slot and secured with the top and bottom mounting screws.
Use shielded twisted-pair cabling for DeviceNet trunk lines to minimize EMI interference.
Maintain proper ventilation in the control cabinet to keep the ambient temperature within operating limits.
Verify that the DeviceNet network is properly terminated at both ends of the trunk line to ensure signal integrity.

FAQ

Is the USB port on the 1756-DNB/E used for real-time control?
No, the USB port is intended for configuration and diagnostic purposes only. It operates independently of the chassis backplane to ensure that maintenance activities do not disrupt active control operations.

What is the maximum cable length for this module?
The maximum cable length depends on the selected data rate. It supports up to 500m at 125 Kbps, 250m at 250 Kbps, and 100m at 500 Kbps.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Maintenance Manager, USA

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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

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Engineering Lead, Germany

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We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.