Enhanced support for telecontrol protocols (SINAUT ST7, DNP3) and RTU communication diagnostics. Related Component Link to Siemens Support Portal Download/Delivery Release Update 1 for SIMATIC WinCC V7.0 SP3 Compatibility Tool Siemens Industry Online Support
In SP3 base, the Graphic Runtime (PdlRt.exe) would slowly leak GDI handles when switching between complex faceplates containing WinCC Controls (like Trend and Alarm controls). After 48-72 hours, screens would turn black, or the system would throw "Out of resources" errors. Update 1 plugged three major GDI leaks, allowing runtimes to operate for months without restart. wincc 70 sp3 update 1 upd
Key improvements in the following areas have been documented: screens would turn black
The layout below highlights the primary operational roles optimized by this patch: wincc 70 sp3 update 1 upd