1785-LT4

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The Allen-Bradley 1785-LT4 is a PLC-5 Series processor module designed for mid-range industrial control applications. It features a user memory capacity of 6,000 words and includes an 8,000-word EEPROM for program backup and retention. This controller supports up to 256 analog I/O points and delivers reliable performance with scan times of 2 milliseconds per 1,000 words for discrete logic and 8 milliseconds for typical applications. Operating on 5V DC, it draws 2.5 Amps of backplane current, making it suitable for integration into standard PLC-5 chassis. The 1785-LT4 is ideal for legacy systems requiring dependable and scalable processing power. Manufacturer Allen-Bradley Brand Rockwell Automation Part Number/Catalog No. 1785-LT4 Series PLC-5 Module Type Processor Module User Memory 6,000 words EEPROM Module Capacity 8,000 words Analog I/O Capacity 256 points Scan Time (Discrete) 2 ms per 1,000 words Scan Time (Typical) 8 ms per 1,000 words Backplane Current 2.5 Amps Backplane Voltage 5 Volts DC Show more