TECHNICAL SPECIFICATIONS

An Overview of Allen-Bradley 1734-AENTR: A Dual Ethernet POINT I/O Communication Module

The Allen-Bradley 1734-AENTR is a highly capable dual Ethernet POINT I/O communication module that delivers Ethernet/IP network connectivity with data rates ranging from 10 to 100 Mbits/s in half or full-duplex modes. This article provides an in-depth analysis of the module's features and functionalities.

Ethernet Port and Network Topologies

The 1734-AENTR module comes with two pass-through Ethernet ports with Category 5 RJ-45 connectors, configured as embedded switches that can support ring, daisy chain, linear, tree, and star network topologies. The module is part of the 1734 series of two-port communications adapters for POINT I/O modules, with Category 5-rated twisted pair cable used for interfacing. You don't need any network scheduling and routing tables.

IP Address Configuration

The module's IP address can be assigned using thumbwheel switches or the BOOT-P DHCP utility. The device is commonly configured with a static IP address, which remains the same even when the module is powered off. Alternatively, dynamic IP addresses are assigned, which can cause communication errors due to sudden changes in the IP address. A fixed IP address should be assigned to the I/O adapter to avoid unauthorized or loss of control.

I/O Data Transfer

The 1734-AENTR module is the only module in a POINT I/O system that establishes a connection to the network and the central controller. It transfers I/O data from its local I/O backplane to the controller over the network and supports simultaneous communication with different scanner modules.

POINT I/O Family of Modular I/O Products

All Point I/O automation systems are designed to supply flexibility and affordability. This product family is characterized by how much one can separate and recombine the system's components into various configurations. This feature lowers the system costs and minimizes the size of what is needed. Additionally, customization abilities for this configuration offer numerous more options and help standardization. Also, Point I/O systems are compatible with other I/O systems, which will help reduce engineering costs for designing and implementing local and local I/O infrastructure and remote and open even more possibilities.

Conclusion

The Allen-Bradley 1734-AENTR is a versatile and robust dual Ethernet POINT I/O communication module that offers Ethernet/IP network connectivity, supporting various network topologies and IP address configuration options. Its ability to transfer I/O data from its local I/O backplane to the controller over the network and support simultaneous communication with different scanner modules enhances its functionality. The POINT I/O family of modular I/O products provides added flexibility and low cost of ownership for applications.