Posted 14 Feb 2014 Hi, I want to create a DB for registers and bits used to store values for modbus communication. How can I create a DB without optimized block access in TIA V11 or V12 (have booth installed) ? The plan is to use a pointer to address the arrays I create in the DB, but I can only create DB's without the option to switch off the "Optimized block access" attribute. Life was easier in Step 7 Share this post Link to post Share on other sites