Order now the 20-750-ENET2P, a cutting-edge communication adapter that provides high-speed, dual-port EtherNet/IP connectivity for Allen-Bradley PowerFlex 750-Series variable frequency drives. This module is the foundation for high-availability industrial networks, supporting advanced redundancy protocols for modern smart factories.
What Is the 20-750-ENET2P?
The 20-750-ENET2P is a dual-port EtherNet/IP option module for PowerFlex 753 and 755 drives. It enables the drive to act as a high-speed node on an industrial Ethernet network, facilitating real-time control, configuration, and diagnostics. The «2P» designation indicates dual RJ45 ports with an integrated switch, which supports various network topologies, including Star, Linear, and Device Level Ring (DLR). DLR is especially valuable as it provides a resilient network; if any segment of the ring is damaged, the module maintains communication through the alternative path. This module also supports the CIP Motion protocol in PowerFlex 755 drives, allowing for highly synchronized motion control across multiple axes.
Key Technical Specifications
- Network Protocol: EtherNet/IP
- Number of Ports: 2 (RJ45)
- Speed: 10/100 Mbps (Full Duplex)
- Topology Support: Star, Linear, and Device Level Ring (DLR)
- Maximum Connections: 30 TCP connections
- Packet Rate: High-performance cyclic data exchange
- Diagnostic LEDs: Module, Network, and Link status
- Compatibility: PowerFlex 753 and 755
Connectivity and Automatic Configuration
The 20-750-ENET2P supports Automatic Device Configuration (ADC). This feature allows the Logix controller to detect when a drive has been replaced and automatically download all configuration parameters to the new drive via the ENET2P module. This drastically reduces the time required for maintenance and eliminates the risk of human error in parameter entry. Furthermore, the dual-port design allows for daisy-chaining multiple drives in a line, significantly reducing the cost and complexity of external network switches in large-scale motor control centers.
Expert Tips
For the best network stability, always use Category 5e (or better) industrial-grade shielded twisted-pair (STP) cables. When configuring a Device Level Ring (DLR), ensure that at least one device on the ring (usually the PLC) is configured as the Ring Supervisor. If the «MS» LED is flashing red on the 20-750-ENET2P, it often indicates a firmware mismatch between the module and the drive’s main control board—always check for the latest Add-On Profile (AOP) in Studio 5000.
Frequently Asked Questions
Q: Can the two ports be used for different subnets?
A: No, the ports share a single IP address and act as an internal switch. They are intended for network redundancy and daisy-chaining within a single subnet.
Q: Does this module support web-based diagnostics?
A: Yes, the 20-750-ENET2P has an embedded web server that allows users to view drive status and diagnostic information using a standard web browser.
Do you need more references from this brand? Explore our full catalog of Allen-Bradley here: https://atlantechdrives.com/manufacturers/allen-bradley/
