The Allen-Bradley 5069-L3100ERMS3 is a Programmable Automation Controller (PAC) that belongs to the Compact GuardLogix 5380 controller. This controller is especially designed to be used in applications that require a controller to meet a certain Safety Integrity Level (SIL) requirement. In particular, the 5069-L3100ERMS3 meets SIL 3 requirement and provided with a dedicates safety memory amounting to 5 MB and supports configuration of 1 Safety task which may have up to 1000 programs using all provided event triggers to the controller.

The 5069-L3100ERMS3 is suitable in applications that require up to and including SIL 3 requirement. Though this is a safety controller, the 5069-L3100ERMS3 carries the specifications and operation of a standard CompactLogix controllers as it comes with 10 MB standard user memory that similarly support up to 31 Tasks. Additionally, this user memory is provided with a non-volatile memory that may be expanded up to 32 GB. This non-volatile memory is typically used for data logging and recipe management as well as for a certain degree of store forward functionality.

The 5069-L3100ERMS3 Compact GuardLogix controller is compatible for with standard and safety I/O modules via local installation or through distributed I/O architecture. This controller ang the associated modules are DIN rail mounted devices that supports horizontal installation only. The recommended DIN rail type for use is a Compatible zinc-plated, chromate steel DIN rail or EN50022 - 35 x 7.5 mm (1.38 x 0.30 in.). Never use DIN rails that are made with materials of poor conductivity as the DIN rail component also connects the Controller and the component module to the grounding system.

The 5069-L3100ERMS3 controller meets the T4 temperature code ratings from the North American Temperature Code, the ATEX Temperature Code, and the IECEx Temperature Code. The 5069-L3100ERMS3 controller is capable of running 32 tasks at a time, specifically 1 safety task and 31 standard tasks at a time. Additionally, the 5069-L3100ERMS3 controller can handle 1000 programs within each of these tasks and it can also handle all of the event triggers. Its ambient operating temperature range is from 0 to 60 degrees Celsius or 32 to 140 degrees Fahrenheit, while its ambient storage temperature range is from -40 to 85 degrees Celsius or -40 to 185 degrees Fahrenheit. In both operating and storage, the 5069-L3100ERMS3 controller can tolerate a humidity level between 5 and 95% as long as the ambient humidity does not condense. Because it has no enclosure, this controller is vulnerable to liquids, chemicals, and debris, and installing it in an external enclosure is recommended.