Siemens 6GK7443-5DX05-0XE0 Communications Processor

The CP 443-5 Extended communications processor for SIMATIC S7-400 (6GK7443-5DX05-0XE0) is Siemens’ module that adds PROFIBUS DP connectivity and S7/S5 compatibility to the S7-400 family, including support for PG/OP and S7 communication. It provides a PROFIBUS DP interface as a DP master with DPV1 capabilities and is designed for open communication within DP networks and legacy S5 configurations. The module supports up to 32 DP slaves on the master, with 240 bytes of input data and 244 bytes of output data available to the master, and up to 32 SEND/RECEIVE open communication connections. In multi‑protocol mode, it can maintain up to 59 active connections without DP and up to 54 with DP, while S7 communication supports up to 48 concurrent connections. Configuration is via STEP 7 V5.4 SP4 or higher, or STEP 7 Professional V12 (TIA Portal) or higher, and the product ships with an electronic manual on CD-ROM for local reference. This CP 443-5 Extended is intended for use in SIMATIC S7-400/S7-400H systems requiring reliable PROFIBUS DP integration and multi‑protocol operation.