Known Issues - References - SIMATIC AX - AX Hardware Engineering documentation - Hardware Engineering,

This page describes known issues and limitations in the Hardware Engineering tools for SIMATIC AX.

• Fail-safe GSD modules produce unexpected outcome without proper error messages. Please do not use them. Safety functionality and checks are yet to be implemented.
• Large GSD files such as gsdml-v2.42-siemens-et200sp can't be installed in online workspaces. We recommend to install them on a local PC and copy the generated gsd folder to the online workspace.
• Known issues regarding OPC UA server configuration:
  • If an S7-1500 PLC with firmware 3.1 or above has an enabled OPC UA server configuration, the warning message OPC UA server: Access without user authentication is permitted (guest authentication activated). appears, although it is not true. Please ignore this message. S7-1500 PLCs with firmware 3.1 and above does not support guest authentication.
  • If an S7-1500 PLC with firmware 3.0 or below has an enabled OPC UA server configuration, and if the GuestAuthentication parameter is set to false (same as not configuring GuestAuthentication parameter, as it is the default value.) and if no user is added with OpcUaServerAccess function rights, the compile and download will be successful, however, OPC-UA server will be inaccessible as no user has proper rights for OPC UA server access.
  • On S7-1500 PLCs with FW3.0 and below the warning message OPC UA server: Unsecured communication is permitted ("No security" is activated) appears due to the default security policy allowing non-secure communication. On S7-1500 PLCs with FW3.1 warning message does not appear but non secure communication is allowed. In this version, this OPC UA policy setting cannot be changed by the user.