Allen-Bradley module 1785-L20B is a part of the Allen-Bradley PLC-5 series. It is a programmable logic controller (PLC) module designed for industrial automation and control systems. The 1785-L20B module is a processor module that provides the computing power for controlling various processes and machines in an industrial environment.

Here are some key features and specifications of the Allen-Bradley 1785-L20B module:

1. Processor: It is equipped with a 16-bit microprocessor, which provides the processing capability for executing ladder logic instructions, managing I/O communication, and performing mathematical computations.

2. Memory: The module has a memory capacity of 16K words for program storage and 16K words for data storage.

3. Communication: It supports multiple communication protocols to interface with other devices and systems, such as DH+, DH-485, Ethernet, and ControlNet.

4. I/O Modules: The 1785-L20B module can accommodate a wide range of I/O modules to connect and c