Improved support for multi-instance tags in Ladder (LAD) and Function Block Diagram (FBD) editors. It also introduced automatic support for F-blocks that were previously marked as "Unsupported Blocks" after a project upgrade.
Refined compatibility for the STEP 7 Safety Basic V13 SP1 license.
Fixed various UI and functional bugs, such as issues with adding new STL networks and ghost ladder networks that appeared in previous iterations. System Requirements & Compatibility
Siemens TIA Portal V13 SP1 Update 4 is a critical stability and performance update for the TIA Portal V13 ecosystem, specifically designed to refine the engineering environment for SIMATIC S7 controllers and HMI systems. Released in July 2015, this update serves as a major milestone for users who require a stable legacy platform for older hardware that may not be fully optimized for newer TIA versions.
Significant general stability improvements based on user feedback and crash reports.
To run TIA Portal V13 SP1 Update 4 effectively, the following specifications are recommended: Update for TIA Portal V13 SP1 - SiePortal - Siemens
This update focused heavily on industrial safety and system reliability. Some of the most notable changes include:
