From the [Project (F)] menu, point to [Information (I)] and select [Project Information (I)].
The [Project Information] dialog box appears.
Click [Logic Memory] and then click the [Logic] tab to check [Logic Capacity (Steps)], [Variable Capacity], [Number of Addresses Used in Logic] and [Comment Memory].
From [Variable Capacity], click [Details] to check the current number, assignable number, and the current sum for each symbol variable type.
You can choose to display [Retentive Variable]/[Volatile Variable] by clicking the tab.
From the [Number of Addresses Used in Logic] dialog box, click [Details] to check the number of addresses or variables set up as [Bit], [Integer] or [System Variable] on the left-hand side, and the number of internal device addresses on the right-hand side.
The [Number of Addresses Used in Logic] is the number of device/PLC addresses of [PLC1]**** and internal device addresses of [USER]. Please note that the number of addresses that can be used in a logic program is limited.
30.16.6 Restrictions for Logic Programs