Plc Rslogix 500
Consequently, facilities are actively migrating RSLogix 500 platforms to modern CompactLogix systems. Rockwell provides an tool and a Studio 5000 Logix Designer conversion utility that automatically translates RSLogix 500 files into tag-based Studio 5000 projects.
In the world of industrial automation, Programmable Logic Controllers (PLCs) play a vital role in controlling and monitoring various processes. One of the most popular and widely used PLCs is the RSLogix 500, developed by Rockwell Automation. In this article, we will provide an in-depth look at the features, benefits, and applications of the PLC RSLogix 500, as well as its programming and configuration.
RSLogix 500 is a legacy PLC programming software from Rockwell Automation, primarily used for the SLC 500 and MicroLogix families. While it has been largely superseded by Studio 5000 (for newer Logix controllers), it remains a staple in industrial maintenance and a highly recommended starting point for beginners. Core Software Overview
| Feature / Aspect | RSLogix 500 | Studio 5000 (Modern Successor) | | :--- | :--- | :--- | | | SLC 500, MicroLogix series | ControlLogix, CompactLogix series | | Programming Language | Primarily Ladder Logic (LD) | All IEC 61131-3 languages (LD, ST, FBD, SFC) | | Addressing / Data | File-based, fixed memory addresses (e.g., B3:0/0 ) | Tag-based, descriptive names (e.g., Start_Pushbutton ) | | Modular Code | Program files and subroutines | User-defined Add-On Instructions, reusable AOIs | | Core Features | Data files, project verifier, search-and-replace | Advanced debugging, user-friendly editors | | Interface | Classic, less user-friendly, but feature-rich | Modern IDE with enhanced data management | | Modern Capabilities | Lacks features like tag-based programming and structured text | Supports tag-based programming, modular AOIs, and all IEC 61131-3 languages | | Lifecycle Status | Active Mature/End of Life | Active (Latest platform) | | Relative Cost | Lower initial entry ($$) | Higher ($2,000-$30,000 annual) |
RSLogix 500 does handle communication drivers directly. Instead, it relies on RSLinx Classic (Rockwell’s communication server). To go online with a PLC, you must first configure a driver in RSLinx, then select that driver from within RSLogix 500. plc rslogix 500
Programming in RSLogix 500 utilizes standard Allen-Bradley bit and word instructions. Instruction Mnemonic Description Examine if Closed
The software provides a tabular view of all data files (Outputs – O, Inputs – I, Status – S, Binary – B, Timer – T, Counter – C, Control – R, Integer – N, Float – F). You can monitor and force bits or change values online.
A free is available for MicroLogix 1000/1100 only.
Understanding the technological divide between older and newer Rockwell systems is vital for modern control engineers. RSLogix 500 Studio 5000 (Logix Designer) SLC 500, MicroLogix ControlLogix, CompactLogix Memory Structure Memory-address based (e.g., B3:0/1 , N7:0 ) Tag-based (e.g., Motor_Start_PB ) Languages Supported Ladder Diagram (LD) only LD, Structured Text (ST), Function Block (FBD), SFC Task Model Single continuous program file scan Multi-tasking (Continuous, Periodic, Event-driven) Online Editing Restricted based on memory; limited in older SLCs Highly robust; almost all tags and structures editable live 7. Troubleshooting and Maintenance Diagnostics One of the most popular and widely used
RSLogix 500 is powerful despite its age. Here are the features that made it—and keep it—a staple in automation.
A standard full project report for RSLogix 500 usually includes the following structured data: Description Processor Info Type (e.g., MicroLogix 1100), memory usage, and name [25]. Channel Config Communication settings for DF1, DH-485, or Ethernet [25]. I/O Config
Always verify baud rate, node address, and COM port settings. A common mistake is mismatched serial parameters between the PLC and the PC.
Click File → New . A dialog box appears asking for processor type. Select your exact model (e.g., MicroLogix 1400 series B). While it has been largely superseded by Studio
in some versions) [17, 41]. This is the most critical step, as the software does not include everything by default [41]. Check All Necessary Sections
: The second book in Anderson's series, which bridges the gap between basic instructions and complex industrial applications.
RSLinx Classic is the communication driver. Ensuring it is properly configured is 90% of the battle in troubleshooting connection issues. Conclusion