Description: The Allen-Bradley 1756-L61S processor is part of the ControlLogix and GuardLogix series. This processor comes with 2 MB of standard memory and with 1 MB of safety memory. The 1756-L61S ControlLogix and GuardLogix processor can be used as part of an Allen-Bradley 1756 control system or an Allen-Bradley 1768 control system. It supports DeviceNet, ControlNet, and EtherNet/IP communication. The 1756-L61S ControlLogix and GuardLogix processor does not support controller redundancy and it does not have an enclosure, but it has an I/O memory capacity of 478 KB.