The Allen-Bradley 1756-EN2T/B is a high-performance communication bridge module designed for the ControlLogix platform. This Series B module facilitates robust Ethernet/IP connectivity, enabling high-speed data exchange between the ControlLogix backplane and various industrial network components, including HMIs, distributed I/O, and peer-to-peer PLC messaging. It serves as a critical interface for integrating control systems into broader plant-wide Ethernet networks.
This module is widely utilized in industrial automation applications requiring reliable Ethernet/IP communication, such as process control, motion control, and discrete manufacturing. It is ideal for systems that demand high-speed data transfer between controllers and remote I/O stations or supervisory systems.
| Brand | Allen-Bradley |
| Product Line | ControlLogix |
| Module Type | Ethernet/IP Bridge |
| Communication Rate | 10/100 Mbps |
| Backplane Current @ 5.1V DC | 1.0 A |
| Backplane Current @ 24V DC | 3 mA |
| Power Dissipation | 5.1 W (Max) |
| Isolation Voltage | 30V (Continuous) |
| Operating Temperature | 0 to 60 degC (32 to 140 degF) |
| Relative Humidity | 5% to 95% (non-condensing) |
What does the /B suffix indicate?
The /B indicates that this is a Series B hardware revision, which typically includes updated firmware capabilities and hardware optimizations over the original Series A modules.
Does this module support DLR?
Yes, the 1756-EN2T/B supports Device Level Ring (DLR) topologies, allowing for fault-tolerant network configurations.
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