The A-B 1785-L40C15 module is an Allen-Bradley Flex I/O Analog Input module based on the naming convention for Rockwell Automation products. 、

Product Name：

Allen-Bradley 1785-L40C-15 Flex I/O Analog Input Module

Product Description:

If it is an analog input module, it would be designed to convert analog signals from sensors and other devices into digital data for processing by a programmable logic controller (PLC) within the Flex I/O system.

Product Parameters:

Number of Analog Input Channels: 4 based on “L40C” (assuming it follows the format “Lx0C-Y” where x represents the number of channels)
Input Range: Unknown without further information, but common voltage ranges for analog input modules are 0-10V or +-10V.
Resolution:but refers to the smallest voltage change the module can detect and convert into a digital value.

Product Use:

Reading voltage or current signals from various sensors like temperature sensors, pressure transducers, and position sensors.
Monitoring and collecting analog process data in industrial automation applications.
Interfacing with external equipment that provides analog output signals.