The 1769-L33ER CompactLogix 5370 controller from Allen-Bradley is a compact Logix controller. The 1769-L33ER can communicate with the controller or other devices through the Ethernet port. The controller has 2 MB of internal user memory and comes with an optional non-volatile memory card with up to 1GB of capacity, expandable to 2GB. The 1769-L33ER can support sixteen (16) I/O modules, up to three (3) I/O banks connected and connected via the appropriate expansion cables. The 1769-L33ER consumes 5 V DC, 560 mA on 4 power modules, with a maximum power consumption of 4.5 W. Its backplane power consumption is 500 mA @ 5VDC, with a maximum bus isolation voltage of 30 V. The 1769-L33ER can be mounted using a DIN rail or panel. The 1769-L3ER CompactLogix controller weighs an average of 0.31 kg (0.68 lb) and is available in an open enclosure. It is an electronic device with an operating temperature range of 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit), a storage temperature range of -40 to 85 degrees Celsius (-40 to 185 degrees Celsius), and a maximum non-condensing relative humidity range of 0 to 95%. The device can be used with a variety of different power supplies, such as the 1769-PA4, 1769-PA2, and 1769-PB4.