# Creating SoftPLC User Data

The SoftPLC can interact with protocol adapters through a dedicated part of the shared memory.

1. Select Add in the GENERAL SOFTPLC SETTINGS field.

2. In the Create SoftPLC user data window, choose the relevant protocol from the drop-down.

3. Fill in the TO SOFTPLC and FROM SOFTPLC address fields.

4. Select Add.

5. Select SoftPLC ON or OFF.

   - On: If the SoftPLC process is lost the tool will be locked from performing any tightenings.

   - Off: If the SoftPLC process is lost the tool will still be able to perform tightenings.