The 1769-L30ER-NSE controller is a programmable logic controller (PLC) that is designed and produced by Allen-Bradley/Rockwell Automation. This component is part of the 1769 series that provides controllers for a variety of applications with different requirements. This particular controller unit is a product from the CompactLogix 5370 L3 product line. The 1769-L30ER-NSE unit has dual ports for EtherNet/IP communication, along with a USB Client port. The integrated EtherNet/IP port features an embedded switch and a single IP address. This powerful controller has the ability to handle up to 32 tasks simultaneously and each assigned task can run 1000 supported programs. The memory capacity of the unit is 1 megabyte and it supports 256 connections. Every controller from the CompactLogix series includes a 1 GB SD card. Additionally, the device supports SD cards rated at up to 2 gigabytes. 

The 1769-L30ER-NSE controller dissipates only 4.5 Watts of power and its current draw is 500 milliAmps at 5 Volts DC. The USB port is mostly used for programming purposes and it can perform with Device Level Ring (DLR) and Linear topologies. The unit has a built-in power supply and it supports local expansion modules. The 1769-L30ER-NSE controller has the following shipping dimensions: 279.4 x 203.2 x 152.3 millimeters (11 x 8 x 6 inches). The weight of this compact I/O module is less than 1 kilogram (2 pounds). The installation of the unit is really simple and it is usually positioned next to power supplies. The module is used with 22 to 14 AWG (solid) or 22 to 16 (stranded) copper wires. The operating temperature range of the 1769-L30ER-NSE controller should be 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit). Also, the unit has an industry-standard tolerance rating to vibration and shock.