When PCM600 connects securely to an IED, the IED security certificate is shown. The user can select to trust that IED forever or for the current PCM600 session.
These certificates are added to Windows Certificate Storage and can be viewed using the certmgr.msc management snippet in Windows.
In Certificate Manager, all IED certificates are stored under PCM Permanent Trust and PCM Session Trust. PCM Session Trust is cleared when PCM600 is closed. Permanently trusted IED certificates can be manually removed by deleting them from PCM Permanent Trust.
Note: All IED certificates are trusted in the current user scope. Every PCM600 user must trust IED certificates individually.