Siemens 6GK7543-1AX00-0XE0 Communications Processor

The Siemens 6GK7-543-1AX00-0XE0 CP 1543-1 provides seamless, secure Industrial Ethernet communication for S7-1500 systems. With full protocol support and built-in security, it was a reliable choice for protected and connected automation environments.

Technical Specifications

• Model: 6GK7543-1AX00-0XE0 Siemens
• Series: SIMATIC S7-1500
• Type: Communications Processor (CP 1543-1)
• Interface: 1 x RJ45 (10/100/1000 Mbps)
• Supported Protocols:
  • TCP/IP, ISO, UDP, S7 Communication
  • IP Broadcast / Multicast
  • SNMP V1/V3
  • FTP Client/Server
  • DHCP
  • Email
• Security Features:
  • VPN
  • Integrated Firewall
  • IEEE 802.1X (Radius)
• Synchronization: Time-of-day via NTP
• IP Versions Supported: IPv4 / IPv6
• Diagnostics: Full integrated diagnostics functions
• Net Weight: 0.356 kg
• Dimensions (W×H×D): 54.0 × 86.0 × 8.0 mm
• Product Lifecycle: Phased out (since 05.09.2024)
• Country of Origin: Germany

Function & Application

Purpose:
The CP 1543-1 enables secure and high-performance Industrial Ethernet connectivity for SIMATIC S7-1500 controllers. Designed to handle a wide range of industrial communication protocols, it integrates cybersecurity features including firewall and VPN while supporting both IPv4 and IPv6 networking.

Typical Applications:

• Industrial Ethernet integration for S7-1500 controllers
• Secure remote access with VPN and firewall
• SCADA system connectivity via SNMP, FTP, and email
• Time-synchronized machine networks via NTP

Performance & Features

• Multi-Protocol Support. Includes TCP/IP, UDP, S7, ISO, and IP multicast.
• Advanced Security. Integrated VPN and firewall with user authentication.
• Industrial Diagnostics. SNMP v1/v3 and email alerts for system monitoring.
• IPv6 Ready. Compatible with modern network infrastructure.
• Time-Sync via NTP. Ensures synchronized PLC operations in distributed systems.

Recommended Accessories

• 6GK1901-1GA00 – IE FastConnect Stripping Tool
• 6XV1870-3QE30 – CAT6A TP Cord, RJ45/RJ45, 0.3m
• 6XV1870-3QE50 – CAT6A TP Cord, RJ45/RJ45, 0.5m
• 6XV1871-5BH10 – IE FC Cable, Preassembled, 1.0m

Delivery & Compliance

• 6GK7543-1AX00-0XE0 Packaging Dimensions: 54.0 × 86.0 × 8.0 mm
• Net Weight: 0.356 kg
• Packaging Quantity: 1 Piece
• Country of Origin: Germany

Product Compliance & Classification

• RoHS Compliance: Since 27.02.2013
• SCIP Number: 25bded44-110a-4cc7-8520-0393588028ef
• REACH Substances:
  • Lead (CAS 7439-92-1) > 0.1%
  • Lead monoxide (CAS 1317-36-8) > 0.1%
  • Bisphenol A (CAS 80-05-7) > 0.1%
  • Silicic acid, lead salt (CAS 11120-22-2) > 0.1%
• Commodity Code: 85176200
• Catalog ID: IK
• Product Group: 2443
• Group Code: R322
• Product Class: A – Stock item, returnable
• EAN: 4019169224277
• UPC: 887621150105

Key Features & Benefits:

✅ Full Industrial Protocol Suite: Supports S7, TCP/IP, ISO, UDP, SNMP, FTP.

✅ Integrated Firewall + VPN: Secure remote access and data exchange.

✅ IPv4 / IPv6 Compatibility: Future-proof for modern industrial networks.

✅ Time Synchronization via NTP: Accurate, reliable coordination across devices.

✅ Compact Gigabit RJ45 Port: Fast and space-saving installation.

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Need help selecting cables, migrating to a successor CP, or implementing secure VPN solutions? Contact our Siemens industrial networking team today.

We connect your PLCs securely—today and for the future.