File storage

After installation, TwinCAT 3 Usermode Runtime files are located in two places:

• C:\Program Files (x86)\Beckhoff\TwinCAT\3.1\Runtimes
  Contains the TwinCAT 3 Usermode Runtime itself as well as a copy template ("UmRT_Template") for the ProgramData directories of the TwinCAT 3 Usermode Runtime
• C:\ProgramData\Beckhoff\TwinCAT\3.1\Runtimes
  Contains a directory "UmRT_Default" after installation.
  In addition to this directory, the copy template can be copied from the Program Files (x86) and thus several TwinCAT 3 Usermode Runtimes can be provided in parallel.
  This directory essentially contains a start.bat, which can be used to start the respective instance.

Both locations have the same structure:

• The 3.1/ subdirectory contains the boot directory, as well as a TcRegistry.xml file, which serves as a configuration interface.
• The subdirectory 3.1/Target/StartManConfig/ can be used to store files that specify which processes should be started and stopped when the Usermode Runtime starts. This configuration is relevant for systems where multiple Usermode Runtimes exist on a single system, see “Several Usermode Runtimes on a System.”