ISPSoft User Manual The users can select global symbols or local symbols in the POUs in the Symbols Select window. Before they select local symbols in a function block, the program must be compiled. After the function block instances declared in the superior POU are produced, they will be assigned substantial memory blocks. The users can monitor the local symbols in the function block instances. Different function block instances are assigned different memory blocks. If users want to monitor local symbols in a function block, they must select the local symbols in the instances of the function block.
After the users select an item in the Object Source section, they can select symbols in the Symbols section. If a symbol whose data type is ARRAY is declared, the elements will be listed in the Symbols section. After symbols in the Symbols section are selected, the user can click Apply to add the symbols to the device monitoring table. The users can continue to select other symbols. After the users finish adding symbols to the device monitoring table, they can click Cancel to close the window. *.
The symbols whose data types are POINTER, the symbols whose data types are T_POINTER, the symbols whose data types are C_POINTER, and the symbols whose data types are HC_POINTER can not be monitored. 18-18