Siemens 6GK7443-5DX05-0XE0 SIMATIC S7-400 CP 443-5 EXT PROFIBUS DP 12 Mbit/s PLC Communication Module

The Siemens CP 443-5 Extended (6GK7443-5DX05-0XE0) is a communication processor that connects a SIMATIC S7-400 CPU to PROFIBUS DP, acting as a DP master (DPV1) for up to 125 distributed I/O devices at transfer rates from 9.6 kbit/s to 12 Mbit/s over a 9-pin Sub-D RS485 port. It also supports S7 communication, open communication (SEND/RECEIVE), and dataset routing, drawing 5 V from the backplane bus at 0.6 A typical.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• RCM
• RoHS
• EAC
• ATEX
• IECEx
• CCC for hazardous zone
• FM registration
• EPD

Selection Notes

The 125-device DP master capacity and 4096 byte total I/O address range make this CP the choice when an S7-400 station needs PROFIBUS DP as a dedicated fieldbus alongside PROFINET handled by a separate CP 443-1 - up to 10 CP 443-5 Extended modules can operate as DP masters in one S7-400 station. Dataset routing with up to 30 connections lets engineering tools reach DP slaves through the S7-400 backplane without a direct PROFIBUS connection at the PC.

Applications

Connects PROFIBUS DP field devices - drives, remote I/O, valve islands - to an S7-400 CPU in process and machine control systems that still run PROFIBUS-based field instrumentation alongside newer PROFINET segments.