- Connects Logix 5000 controllers with EtherNet/IP devices through one 10/100 Mbps copper RJ45 port
- Supports up to sixty-four TCP connections and one hundred twenty-eight CIP connections
- Installs in one slot of a standard ControlLogix chassis and can be placed in any slot
1756-ENBT/A is the Series A hardware form of the legacy Allen-Bradley ControlLogix EtherNet/IP bridge module.
It provides a single Category 5 Ethernet port for controller messaging, I/O communication, HMI access, and other supported EtherNet/IP traffic.
Because the product is discontinued, any replacement plan should preserve IP and routing data, review connection capacity and electronic keying, and validate the documented 1756-EN2T functional replacement in the actual architecture.
Availability, condition, price, and shipping time for 1756-ENBT/A are confirmed during quotation.
Allen-Bradley 1756-ENBT/A EtherNet/IP Communication Bridge Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Count all implicit and explicit CIP connections before approving the module for an existing or expanded system
- Document the IP address, subnet mask, gateway, host name, and switch-port configuration before removal
- Use managed-switch diagnostics to check duplicate addresses, duplex mismatch, errors, and unstable links
- Rockwell identifies 1756-EN2T as the current functional replacement for the discontinued 1756-ENBT
- Treat migration as an engineering change because firmware, profiles, connection capacity, and network behavior differ
- Update the Logix project, network documentation, spare-parts list, and recovery procedure after validation
- Confirm Series A and the selected electronic-keying policy before inserting a replacement
- Verify chassis power capacity and install the module in a supported ControlLogix chassis slot
- Inspect the Category 5 cable, RJ45 latch, grounding, routing, and cabinet environment before restart
- Establishing communication between Logix 5000 controllers over an EtherNet/IP network
- Connecting ControlLogix controllers with remote EtherNet/IP I/O and compatible field devices
- Providing EtherNet/IP messaging and controller access for supported HMI, engineering, and supervisory systems