The 5069-L320ERMS3K controller is an Allen-Bradley industrial machine controller that is a member of the Compact GuardLogix 5380 SIL 3 controller product line in the Allen-Bradley CompactLogix 5069 controller series. This controller is an Ethernet controller that uses the industrial Ethernet network to communicate with other machines. It comes with 2 Ethernet ports that operate in a full duplex setup at speeds of 10 Mbps, 100 Mbps, and even 1 Gbps, depending on the application and on the volume of data that is being transmitted. The 5069-L320ERMS3K controller can communicate with as many as 16 local I/O modules at a time. It comes with 2 MB of user memory and 1 MB of safety memory built in, and its memory capacity can be increased with a variety of optional Allen-Bradley non-volatile memory expansion modules.

The Allen-Bradley 5069-L320ERMS3K industrial machine controller from the CompactLogix 5069 and the Compact GuardLogix 5380 SIL 3 controller series has a rated ambient operating temperature range from 0 to 60 degrees Celsius or 32 to 140 degrees Fahrenheit. The rated ambient storage and transportation temperature range for this controller is from -40 to 85 degrees Celsius or -40 to 185 degrees Fahrenheit. In operation, transit, and storage, the 5069-L320ERMS3K controller can tolerate non-condensing relative humidity levels between 5 and 95%. It must be protected from condensation, other types of liquids, chemicals, dust, and debris because it is open-style equipment that does not come in an enclosure. It can be installed in an external enclosure for protection, and it is meant to be mounted horizontally on a DIN rail.