1785-L40L | 1785L40L
ALLEN-BRADLEY PLC-5 1785-L40L | 1785L40L EXTENDED LOCAL PLC5/40, 48K WORD SRAM
The reference number 1785-L40L refers to a specific model of an Allen-Bradley PLC-5 standard programmable logic controller (PLC), not an “Introduction to AI” course or document.
The 1785-L40L processor is an industrial automation component, a high-performance, chassis-based module designed for complex control tasks in manufacturing environments.
Key Features of the Allen-Bradley 1785-L40L
- Function: It is a processor module (part of the PLC-5 series) used for industrial automation and process control, managing input/output (I/O) operations based on a stored program.
- Memory: It has a maximum user memory of 48,000 words of volatile static RAM, which requires a battery backup to retain data after power loss.
- I/O Support: It supports up to 16 I/O racks and a maximum of 61 I/O chassis, capable of coordinating a significant number of digital and analog I/O points.
- Communication: The processor supports communication networks such as Data Highway Plus (DH+) and Remote I/O, facilitating data transfer and remote programming.
- Programming: It is programmed using Rockwell Software’s RSLogix 5 software, which primarily uses ladder logic and instruction list programming languages.









