Siemens 6GK7443-1EX11-0XE0 CP443-1

Meet the Siemens 6GK7443-1EX11-0XE0, a high-performance CP443-1 communications processor for the SIMATIC S7-400 PLC platform. This module connects your S7-400 controller directly to Industrial Ethernet networks for seamless data exchange. Moreover, it supports key protocols including ISO, TCP/IP, UDP, and S7 communication for maximum flexibility. Consequently, it enables robust connectivity for plant-wide automation, MES integration, and remote diagnostics.

Detailed Technical Specifications

The 6GK7443-1EX11-0XE0 processor provides versatile network access with precise electrical requirements. Below are its core technical parameters for network design and system integration.

Parameter	Specification
Manufacturer & Model	Siemens 6GK7443-1EX11-0XE0
Module Designation	Communications Processor CP443-1
Compatible Controller	SIMATIC S7-400
Network Type	Industrial Ethernet (IEEE 802.3)
Supported Protocols	ISO, TCP/IP, UDP, S7 Comm, FETCH/WRITE, NTP
Transmission Rate	10 / 100 Mbit/s (Auto-negotiating)
Number of Interfaces	1
Interface 1 Types	RJ45 (Twisted Pair) & 15-pin Sub-D (AUI/ITP)
Interface Design	Electrical
Removable Storage (C-PLUG)	No
Supply Voltage	5 VDC (from S7-400 backplane bus)
Voltage Tolerance	±5%
Key Features	SEND/RECEIVE, Multicast, IP Access List Security

Core Functionality and Network Integration

This processor handles high-level communication tasks, offloading the central CPU. Therefore, it ensures fast and deterministic data exchange without impacting control program scan times. Additionally, its dual RJ45 and AUI interfaces offer flexible cabling options for various network infrastructures.

The module includes advanced functions like clock synchronization via NTP and network security via IP access lists. Furthermore, for complete system integrity, protect critical network paths with reliable components like the RMS-TSG-TZ-C Static Trip device for associated equipment.

Engineered for Secure and High-Speed Data Exchange

Choosing the Siemens 6GK7443-1EX11-0XE0 establishes a reliable and secure gateway for your S7-400 system. Its support for standard IT protocols bridges the gap between operational technology (OT) and information technology (IT). Ultimately, this communications processor is essential for building modern, connected, and future-proof industrial control systems.