EAS File – What is .eas file and how to open it?
EAS File Extension
RSLogix Symbol File – file format by Rockwell Automation
EAS (RSLogix Symbol File) is a file extension developed by Rockwell Automation. It is used to store symbol information for RSLogix software, a programming environment for programmable logic controllers (PLCs). The file extension allows for the exchange of symbol information between different RSLogix software applications and projects.
EAS File Format
An EAS file is a text file that contains the symbol table for a Rockwell Automation RSLogix PLC program. The symbol table maps symbolic names to addresses in the PLC’s memory. This allows programmers to use meaningful names for variables and other objects in their programs, rather than having to remember complex memory addresses.
The EAS file format is a simple text format that is easy to read and edit. Each line in the file contains a single symbol definition. The definition includes the symbol name, the address, the data type, and the value. For example, the following line defines a symbol named “MyVariable” that is located at address %MW100 and has a data type of integer:
MyVariable %MW100 INT 0
EAS files are typically created by the RSLogix software development environment. However, they can also be created or edited manually using a text editor.
Using RSLogix Software
Rockwell Automation’s RSLogix software is a comprehensive suite designed for programming, configuring, and troubleshooting industrial automation systems. It can open and edit EAS files, which contain symbol table information for PLCs (Programmable Logic Controllers). To open an EAS file in RSLogix, navigate to the “File” menu, select “Open,” and locate the desired file. Once opened, the EAS file’s symbol table will be accessible for viewing, editing, and management.
Converting EAS to Exportable Formats
If you need to share or use the symbol table information in a non-RSLogix environment, consider converting the EAS file to an exportable format. One common option is to convert the EAS file to a CSV (Comma-Separated Values) file. CSV is a text-based format that is compatible with most spreadsheet and database applications. To convert an EAS file to CSV, use a third-party tool or consult Rockwell Automation’s documentation for recommended conversion methods.
EAS File Structure and Usage
An EAS file, short for RSLogix Symbol File, is a binary file format used by Rockwell Automation’s RSLogix software suite for programmable logic controllers (PLCs). It contains a collection of symbols that represent the various data elements used in the PLC program, such as input and output addresses, timers, counters, and data structures. EAS files play a crucial role in the programming and debugging process, providing a structured and human-readable representation of the PLC’s memory and I/O layout.
The structure of an EAS file is defined by Rockwell Automation and is optimized for efficient use within the RSLogix software environment. It consists of a header that contains metadata about the file, followed by a series of records that represent the individual symbols. Each record contains information such as the symbol name, data type, value, and I/O address. This allows RSLogix to quickly access and manipulate the symbols during program development and execution.