Tia Portal V13 Sp1 Update 4 Best Guide
It’s a maintenance update for Siemens engineering software (STEP 7, WinCC, Startdrive) used to program S7-1200, S7-1500, S7-300/400, HMI panels, and drives.
: Users can consistently use multi-instance tags in Ladder (LAD) and Function Block Diagram (FBD) editors. License Compatibility : Improved compatibility for the STEP 7 Safety Basic V13 SP1 Performance and Stability Reduced Lag Tia Portal V13 Sp1 Update 4