If you have STEP7, but no Software Update Service, then now is the time to purchase one.
It is almost certain that v5.5 will be released in 1-2 months time.
Purchasing an upgrade later, in stead of a Software Update Service costs almost twice as much.
It is almost certain that v5.5 will be released in 1-2 months time.
Purchasing an upgrade later, in stead of a Software Update Service costs almost twice as much.