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The Allen Bradley 1747-L40L is a versatile component of the SLC 500 system, offering the simplicity and power of a compact yet efficient PLC. Equipped with a processor supporting 1,024 words of user memory, this fixed controller operates at 120/240V AC and includes 24 DC source inputs and 16 DC transistor sink outputs. It features high-speed performance with a 4-microsecond bit execution time and an 8 millisecond/1K typical scan time, complemented by 24V user power at 200mA and a robust heat dissipation capacity. The 1747-L40L supports RS-232 communication and offers extensive functionality through a 2-slot expansion chassis and LED status indicators, making it ideal for industrial applications, operating from 0 to 60 degrees Celsius and resistant to vibration and environmental noise.