In the Falcon SERIES* the start page (page 0, basic screen) is also always the page where active fault messages are displayed. Therefore, in order to see the fault messages you only need to call the start page. The page is changed by setting bit 13 (positive edge) in the dynamic control word (start address of control words +04).
Dynamic control word:
* Exception for ET-75 and ET-125 (In these cases, the fault message page can be displayed via bit 5 or the function "Activate fault message page")
In the case of the ET-75 and ET-125 operator interfaces the fault message page is generated by SPSPlusWIN does not indicate the fault message page. There are no restrictions for page "0" using these operator interfaces.