Introduction: Comparing Rockwell’s 1756-L8xE vs. 1756-L7x Series
Since Rockwell released its new 1756-L8xE (5580) series processors, many users have been sharing feedback about performance boosts and potential issues. In this article, we’ll compare the cost and performance of the 1756-L83E and L85E processors against the previous generation 1756-L73 and L75 models.
Performance Improvements of the 1756-L8xE Series
The 1756-L8xE series processors offer a significant performance improvement over the L7x series. Rockwell claims users can experience up to 20 times faster processing speeds, a notable increase compared to the 2-4 times improvement in older models. This upgrade can greatly enhance the efficiency of industrial automation systems.
Memory and Storage Upgrades in the 1756-L8xE Series
The 1756-L8xE series processors come with more memory. The L83E has 10MB, while the L85E offers 40MB. In comparison, the L73 and L75 have 8MB and 32MB, respectively. Additionally, the 5580 series ships with a larger 2GB SD card, compared to the 1GB cards found in the L7x models.
Ethernet Speed and Capacity Enhancements
The 1756-L8xE series offers a significant upgrade in Ethernet speed, supporting up to 1GB, while the L7x series is limited to 100MB. This increase in speed allows for faster communication between devices and better network performance, making the 5580 series a more attractive choice for high-speed applications.
I/O Capacity: A Closer Look at the Differences
When comparing I/O capacity, the L8xE processors show limitations in certain areas. The L83E supports up to 100 Ethernet nodes, and the L85E supports up to 300. In contrast, the L73 and L75 support 500 connections, and the ENBT module supports 128 CIP and 64 TCP connections. The actual capacity will depend on the devices in use.
Weighing the Cost and Value of the 1756-L8xE Series
While the 1756-L8xE series offers faster processing and better memory, the newer hardware comes with potential drawbacks. Firmware and software bugs may arise, and updating to Studio 5000 v28 could be costly for larger organizations. Despite these factors, the improved performance may justify the upgrade.
Conclusion: Which Processor Offers Better Value?
The 1756-L8xE series processors, with their faster processing, higher memory, and improved Ethernet speed, offer significant advantages over the L7x models. However, potential issues with firmware and software compatibility should be considered before making the switch. Overall, the L8xE series is an excellent choice for those needing faster speeds and enhanced performance.
Discover below Allen-Bradley popular items for more information in Ubest Automation Limited.
| Model | Title | Link |
|---|---|---|
| 1756-L74 | Allen Bradley 1756-L74 ControlLogix 5574 Processor | Learn More |
| 1756-L75 | Allen Bradley 1756-L75 ControlLogix Controller | Learn More |
| 1756-L73 | Allen Bradley 1756-L73 ControlLogix Logix5573 Processor | Learn More |
| 1756-L72 | Allen Bradley 1756-L72 Programmable Controller ControlLogix | Learn More |
| 1756-L7SP | Safety Partner Controller 1756-L7SP Allen Bradley | Learn More |
| 1756-L71S | Allen Bradley 1756-L71S GuardLogix Controller | Learn More |
| 1756-L85EP | Allen Bradley 1756-L85EP ControlLogix 5580E Processor | Learn More |
| 1756-L81E | Allen Bradley 1756-L81E ControlLogix 5580 Controller | Learn More |
| 1756-L84E | Allen Bradley 1756-L84E ControlLogix 5580 Controller | Learn More |
| 1756-L82ES | Allen Bradley 1756-L82ES Industrial Controller | Learn More |
| 1756-L71 | Allen Bradley 1756-L71 ControlLogix 5571 Processor 2MB | Learn More |
| 1756-L71K | Allen Bradley 1756-L71K ControlLogix Logix5571 Controller | Learn More |
| 1756-L73XT | Allen Bradley 1756-L73XT ControlLogix XT Logix5673 Controller | Learn More |
| 1756-L85E | Allen Bradley 1756-L85E ControlLogix 5580 Controller | Learn More |
| 1756-L81E-NSE | Allen Bradley 1756-L81E-NSE ControlLogix 5580 Controller | Learn More |