1756-L84EXT

Allen-Bradley manufactures the 1756-L84EXT ControlLogix-XT Controller which belongs to the ControlLogix-XT 5580 Controllers product line. This controller features 20 MB of user memory and 2 GB of optional nonvolatile memory. The 1756-L84EXT Controller has a current draw of 5 milliamps at 1.2 Volts DC and 1.2 Amps at 5.1 Volts DC. It has 6.2 Watts of rated power dissipation, 21.2 BTU per hour of rated thermal dissipation, and a continuous isolation voltage of 50 Volts for the USB port to backplane, basic insulation type, Ethernet port to backplane, and USB port to Ethernet port isolation. This isolation rating is tested at up to 1000 Volts AC for 60 seconds. The Allen-Bradley 1756-L84EXT Controller features an approximate weight of 0.394 kilograms with its chassis-based module location. It comes with an operating temperature range from -25 to 70 degrees Celsius for the XT Chassis in Series C. This unit has a non-operating temperature range of -40 to 85 degrees Celsius.

The Allen-Bradley 1756-L84EXT ControlLogix-XT Controller can tolerate 70 degrees Celsius of maximum surrounding air temperature without condensation and this device is certified and listed for compliance with the CE, CSA, IECEx, KC, RCM, Ex, FM, cULus, and EAC industrial standards. It has a non-condensing tolerable relative humidity range of 5 to 95 percent, a shock rating of 30 G for both operation and non-operation, and a vibration rating of 2 G at 10 to 500 Hertz. The 1756-L84EXT Controller has an open-style enclosure and it uses wire from category 3 for the USB ports and wire from category 2 for the Ethernet ports. It has support for different programming languages including the sequential function chart, relay ladder logic, function block diagram, and structured text programming languages.