Siemens 6GK7 443-5DX03-0XE0 Profibus Communication Module

CP 443-5 Extended communications processor (model 6GK7 443-5DX03-0XE0) provides the PROFIBUS DP master interface that connects SIMATIC S7-400 controllers to PROFIBUS DP networks. It preserves S5 compatibility and supports PG/OP access and S7-to-PLC communications, making it a versatile link within the SIMATIC NET family. As a PROFIBUS DP master, the CP 443-5 Extended handles standard data exchange and supports DP V1 features, time synchronization, and advanced routing options including data-record routing, enabling deterministic communication across the plant. The module also offers synchronization modes (sync/freeze) and redundancy capabilities for higher availability in critical automation applications. Typical uses include linking S7-400 CPUs to PROFIBUS DP I/O blocks, drives, remote I/O, and other PROFIBUS devices, while maintaining robust S7 communication channels and network management through CiR routing capabilities. Installed in the S7-400 rack, this CP functions as a dedicated DP master within SIMATIC NET, facilitating reliable, scalable fieldbus communications for industrial automation tasks.