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High-Performance Connectivity for Logix Family Controllers
This driver is included in the following TOP Server driver suites:
Channels and devices per channel.
Max configurable packet size.
Elements per single array request.
Parallel communication threads.
The Rockwell Allen-Bradley ControlLogix Ethernet driver works in conjunction with TOP Server to provide data exchange between OPC UA, OPC DA, SuiteLink and DDE clients and Allen-Bradley Logix Family controllers via the Allen-Bradley ControlLogix Ethernet protocol and even legacy controllers via gateway support.
Advanced features such as ControlLogix Gateway support and NET-ENI support allow the ControlLogix Ethernet driver to connect, not only to Logix controllers, but also to legacy PLC-5 and SLC Family controllers. The ControlLogix Ethernet driver is a multi-threaded high performance driver for simultaneous communication with multiple PLCs using multiple channels.
This driver does not require a Rockwell Automation RSLinx license.
Proven benefits that help you deploy faster and operate more reliably
Compatible with most firmware revisions, refer to the latest supported firmware details for specifics. Open address range support ensures compatibility with PLC 5, SLC 500, and MicroLogix controllers, including ENI and ControlLogix Gateway applications.
ControlLogix native tag addressing is supported, along with user defined tags. Arrays are supported for all atomic data types, enabling flexible and scalable data structures.
Supports all file types, including output, input, and integer. Data types such as float, long word, and BCD are supported depending on file type, along with numerous predefined types and locale specific multi byte strings.
Optimized memory access improves performance across all tags and data types. Communication uses a standard Ethernet network interface card with TCP and IP protocols.
"I've used your software since 1998. Different company, different time. Your service has always been spectacular."
Joseph Wills
Automation Engineer
Everything you need for reliable industrial connectivity
Access live process data from your devices with minimal latency and maximum reliability.
Read and write configuration parameters directly from your SCADA or HMI application.
Intelligent connection management automatically recovers from network interruptions.
Supports multiple communication protocols for flexible deployment options.
Optimized algorithms deliver maximum throughput with minimal system overhead.
Comprehensive logging helps troubleshoot issues and monitor driver performance.
Protocols
EtherNet/IP (CIP), Logix Gateway Routing (ControlNet, DH+, EtherNet/IP)
Max Channels
1024
Devices per Channel
1024
Max Programs
1024
Max Packet Size
Up to 4000 bytes (ControlLogix v20+)
License Type
Perpetual
Delivery
Online (download)
RSLinx Required
No
Note: Supports the full Logix family plus legacy controllers via gateway routing.
Everything you need to get started, configure, and troubleshoot your driver
Video tutorial for connecting to Logix controllers using the ControlLogix Ethernet driver
View →Library of tutorial videos covering installation, configuration, features, etc.
View →Collection of application notes and guides for TOP Server
View →Comprehensive troubleshooting guide for TOP Server
View →Complete driver documentation with setup instructions and configuration examples
Download →In-depth guide for optimizing performance with ControlLogix protocol modes
View →Configuration guide covering all key choices for the ControlLogix Ethernet driver
View →View the complete TOP Server release history and version information
View →3 global ratings
Reviewed in the United States on March 5, 2026
Verified PurchaseI was very new to this type of software. John was very knowledgeable and able to help me figure out where I was making my mistake.
Reviewed in the United States on March 25, 2026
Verified PurchaseZach helped us fix the problem quickly. Win answered the call initially and it was great to talk to my old friend again. We were back up in minutes.
Reviewed in the United States on March 23, 2026
Verified PurchaseZach is AMAZING!!!
The demo is the full product once licensed. Once a client application connects to TOP Server, the runtime will operate for 2 hours at a time. At the end of the 2 hour demo period, the demo timer must be reset by restarting the TOP Server runtime service.
