The SIMATIC DP, Electronic Module for ET 200 PRO 4 DIO/4 DO 24 V DC, 0.5A (6ES7143-4BF00-0AA0) is a digital input/output module from Siemens, designed for SIMATIC ET 200 PRO systems, operating with a 24 V DC power supply and a 0.5A current rating. The module provides 4 digital input/outputs (DIO, 24 V DC) and 4 digital outputs (DO, 24 V DC), and supports module diagnostics. With a net weight of 0.176 kg and packaging dimensions of 7.30 x 13.70 x 6.50 cm, its compact design helps save space in control cabinets. The module includes a bus module, but the connection module (IO 6ES7194-4CB50-0AA0) must be ordered separately. This module is used in SIMATIC ET 200 PRO systems for industrial automation projects, such as reading digital signals from sensors or switches and generating digital signals to control actuators or relays. Its high reliability and flexibility make it widely used in industrial applications.