Communication Processor

The Siemens 6GK7343-1CX10-0XE0 is a communication processor (CP 343-1 Lean) designed to connect SIMATIC S7-300 controllers to Industrial Ethernet networks using standard protocols. This module enables robust, high-speed communication and integrates seamlessly into automation environments.

• Type: CP 343-1 Lean communications processor

• Series: SIMATIC S7-300

• Interfaces: 2 x RJ45 (10/100 Mbit/s), integrated 2-port switch (ERTEC 200)

• Network Protocols: TCP/IP, UDP, Multicast, SEND/RECEIVE (with/without RFC1006), Fetch/Write, S7 communication (server), PROFINET IO device

• Diagnostics: SNMP diagnostics, module replacement without PG, initialisation via LAN

• Supply Voltage:

  • 5 V DC from backplane bus (typical 0.2 A)

  • External 24 V DC (typical 0.16 A, max 0.2 A)

• Power Loss: 5.8 W

• Operating Temperature: 0°C to +60°C

• Storage/Transport Temperature: -40°C to +70°C

• Humidity: Up to 95% (non-condensing)

• Protection Class: IP20

• Dimensions: 40 x 125 x 120 mm (W x H x D)

• Weight: Approx. 0.22 kg (net)

• Mounting: DIN rail

• Certifications: CE, UL, RoHS compliant

• Maximum Open Communication Connections: 8 (via SEND/RECEIVE blocks)

• Maximum Data Volume per Connection: 8 KiB (ISO-on-TCP, open communication)