Siemens 6GK7 443-5DX04-0XE0 Profibus Communication Module

The Siemens CP 443-5 Extended Communications Processor (order number 6GK7443-5DX04-0XE0) provides the PROFIBUS DP interface that connects a SIMATIC S7-400 controller to PROFIBUS DP networks. This compact, single-width module is designed for backplane mounting in the S7-400 rack and is listed as a spare part under the 6GK7443-5DX04-0XE0 designation in Siemens Industry Mall. It supports S5 compatibility as well as PG/OP access and S7 communication, enabling use of SIMATIC NET to exchange SEND/RECEIVE data with PROFIBUS DP devices, including DP slaves and masters on the network. As part of the SIMATIC NET CPs for PROFIBUS family, the CP 443-5 Extended bridges legacy and contemporary automation assets, allowing S7-400 systems to participate in PROFIBUS DP communications within a SIMATIC NET environment. Hardware version is 1, reflecting its release iteration, and this module is specifically intended for PROFIBUS DP connectivity for S7-400 rather than functioning as a standalone fieldbus controller. In factory automation contexts, it enables reliable integration of S7-400 PLCs with PROFIBUS DP devices such as remote I/O, sensors, and actuators, facilitating coordinated control and data exchange across the DP network.