Allen-Bradley Controllogix 1756-L74 Module

About1756-L74

The1756-L74controllerhas a 16 MB user memory and a 0.98 MB I/O memory. It has 128,000 total and digital I/O and 4000 analog I/O. The controller has compatible energy storage modules like the 1756-ESMCAP, 1756-ESMCAPK, 1756-ESMNSE, 1756-ESMNSEK, 1756-ESMNRM, and the 1756-ESMNRMK modules. The1756-L74 controlleronly requires 2.5 W of power dissipation and only 8.5 BTU/hr of thermal dissipation. It has a USB port-to-system basic insulation type. It has a chassis-based module location at any slot for the 1756 series with a 1-slot width. Possible chassis include the 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K,1756-A17, and the 1756-A17 K.

The1756-L74uses a standard power supply such as the 1756-PA50, 1756-PA72, and the 1756-PA72K. For power supply redundancy, it only uses the 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, or the 1756-PSCA2K. The1756-L74has an open-style enclosure, an operating temperature of 0-60°C, and a non-operating temperature of -40 - 85°C. Its operating vibration is 10 – 500 Hz at 2 g, its operating shock is 30 g, and its non-operating shock is 50 g.

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