MC-3020 has a new feature called State Save.
A mechanism to capture the present state of all state machine instances is provided through the State Save feature. Once triggered, the current state of each running instance state machine is written to a buffer. Outstanding events from the event queues are also written to the buffer. This information presents a snapshot of the system at the exact moment in time when the state save was triggered and can be valuable to understand erroneous behavior during development and testing of user models.