Description
The Allen-Bradley 1756-ENBT/A is an Ethernet/IP communication bridge module for the ControlLogix platform. It provides robust and high-speed network integration, supporting up to 64 TCP and 128 CIP connections. With a communication rate of 10/100 Mbps and a single-slot chassis design, the 1756-ENBT enables real-time data exchange, diagnostics access, and distributed I/O control through a single, simplified Ethernet network.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Allen Bradley |
| Category |
|
| Part Number |
1756-ENBT/A |
| Subcategory |
PLC Module/Rack |
| Series |
ControlLogix
|
| Module Type |
Ethernet Communication Module
|
| TCP Connections |
Up to 64
|
| CIP Connections |
Up to 128
|
| Communication Speed |
10/100 Mbps (auto-negotiation)
|
| Integrated Ports |
1 x RJ45, 1 x USB 1.1
|
| Packet Throughput |
5000 I/O, 900 HMI/MSG packets/sec
|
| Power Dissipation |
3.7 Watts
|
| Thermal Dissipation |
12.6 BTU/hr
|
| Current Draw (5.1V DC) |
700 mA
|
| Current Draw (24V DC) |
3 mA
|
| Insulation Voltage |
30V Continuous
|
| Slot Width |
1 Slot
|
| Mounting |
Any slot in ControlLogix chassis
|
| Operating Temperature Range |
0 to 60 °C (32 to 140 °F)
|
| Enclosure Type |
Open
|
| USB Version |
USB 1.1
|
| Compatibility |
Backward compatible with legacy systems
|
| Weight |
1.00 lbs |
Information About 1756-ENBT/A
The 1756-ENBT/A is a first-generation ControlLogix Ethernet/IP bridge module developed by Allen-Bradley, part of Rockwell Automation’s ControlLogix series. It allows industrial controllers to communicate across Ethernet networks using the Common Industrial Protocol (CIP), and supports up to 5000 I/O packets per second with auto-negotiation functionality. It is web-enabled, offering diagnostics and configuration access via a standard browser. The 1756-ENBT/A can function both in local and remote I/O chassis and is compatible with older system versions, enhancing network flexibility.
Key Features:
- Ethernet/IP Protocol Support: Enables high-speed industrial networking over standard Ethernet infrastructure.
- 64 TCP Connections: Supports simultaneous communication with multiple devices without multiplexer requirements.
- 128 CIP Connections: Allows extensive I/O control and real-time data exchange over CIP.
- Web-Enabled Diagnostics: Access module status, IP setup, collision histograms, and network health via browser.
- High Packet Throughput: Handles up to 5000 I/O and 900 HMI/MSG packets per second.
- Auto-Negotiating Speed: Communicates at 10 or 100 Mbps with automatic speed and duplex detection.
- Chassis Versatility: Installs in any slot of a ControlLogix chassis and supports remote I/O operation.
- Single-Slot Design: Occupies minimal space in the control cabinet, enhancing scalability.
- Integrated RJ45 and USB Ports: Offers standard Ethernet and configuration access.
- Backward Compatibility: Seamlessly integrates into legacy ControlLogix systems.
The 1756-ENBT/A delivers the reliability and precision required for high-performance industrial communication.
