< All Topics Main User Guides Communications Protocols Allow Siemens PLC (1200/1500) to communicate with Experior through TIA Allow Siemens PLC (1200/1500) to communicate with Experior through TIA PostedNovember 5, 2021 UpdatedNovember 5, 2021 ByKasper Vestrup If you are using a Siemens 1200 or 1500 series PLC, you will need to grant Experior full access through TIA.Open project in TIAGo to PLC propertiesUnder General tab select ProtectionMake sure Full Access is selected as shown in the figureCheck Permit access with PUT/GET communication from remote partner as shown in the figure below