6ES7338-4BC01-0AB0 is a digital input module manufactured by Siemens. It has a 17.6mm wide housing and accepts 24V DC power supply. The module can handle a total of 8 digital inputs and 5 types of inputs, including DC24V, DC12V, DC 5V, and two others depending on the type of module. It has a 5-way plug-in screw connection terminal and a status LED to indicate the condition of the inputs. This module also includes diagnostic and communication functions through PROFIBUS DP, Ethernet, and other bus systems. It is designed for mounting on DIN rail or wall-mounting.