The new BLACKBOX 3 from AUTEM provides an ultra-compact data acquisition computer for the long-term re-cording of PLC signals and external electrical values (PLC process data archiving) and also remote maintenance us-ing the PLC-ANALYZER pro 6. Due to its small dimensions, the system can be integrated in a switching cabinet without any problem. The service technician can also conveniently transport the system to the customer in a suitcase (aircraft). The BLACKBOX can continuously record and archive pro-cessing data (several hundred signals) over a longer period of time; typically, in excess of 3 years.