- Added InstanceManager class for managing backend instances.
- Introduced double HTTP health checks with configurable intervals.
- Implemented PID-based verification and cleanup of stale processes.
- Enhanced instance initialization and cleanup processes.
- Updated main.py to utilize the new instance management system.
- Modified system_state.json to reflect changes in active datasets and last update timestamp.
- Implemented `test_simple_read_multi_vars.py` to validate read_multi_vars functionality with detailed logging and error handling.
- Created `test_snap7v2_comprehensive.py` for extensive testing of snap7 v2, covering various PLC variable types, performance comparisons, data consistency checks, and stress testing.
- Integrated existing backend components and optimized reading methods, with comprehensive reporting and logging features.
- Introduced `test_optimized_reader.py` to validate the functionality and configuration of `OptimizedBatchReader`.
- Created `test_pe_pa_fixed.py` to test the corrected PE/PA reading functionality using appropriate Snap7 area codes.
- Developed `test_real_plc.py` to assess the performance of optimized batch reading against legacy methods with actual PLC configurations.
- Implemented `test_simple_validation.py` for a final validation of core functionalities, ensuring correct implementation of PE/PA area codes and batch reading.
- Added OptimizedBatchReader class to handle batch reading of PLC variables using snap7's read_multi_vars function.
- Introduced automatic chunking to respect S7 PDU limits, allowing for efficient handling of large variable lists.
- Replaced the existing read_variables_batch method in PLCClient with the new optimized implementation.
- Updated system_state.json to reflect the latest last_update timestamp.
- Removed commented-out code related to the previous batch reading method.
- Implemented a new utility class `SymbolLoader` to parse Siemens ASC symbol files and save the output in JSON format.
- Created a `SymbolProcessor` class to handle symbol-based variable processing, including loading symbols and expanding configurations.
- Developed frontend components `FilePathWidget` and `SymbolSelectorWidget` for file selection and symbol selection respectively.
- Added API endpoints for loading symbols and browsing files.
- Introduced test scripts for validating the symbol loader and endpoint functionality.
- Added sample ASC and JSON files for testing purposes.
- Updated JSON schema for plot variables to improve clarity and structure.
- Modified UI schema for dataset variables to enhance user experience and layout.
- Revamped plot definitions UI schema for better organization and usability.
- Enhanced dataset manager to support filtered variable configuration based on selected datasets.
- Implemented a unified JSON manager for streamlined CRUD operations on configuration files.
- Improved error handling and validation for JSON schema loading and configuration management.
- Updated main application logic to utilize new JSON and schema managers for configuration operations.
- Added validation for dataset definitions and PLC configuration schemas.
Miguel