The Siemens 6GK7343-1EX30-0XE0 is a high-performance communications processor designed for the SIMATIC S7-300 PLC system. This module enables seamless integration of the S7-300 controller into Industrial Ethernet networks, supporting both ISO and TCP/IP communication protocols. It features an integrated 2-port switch based on the ERTEC 200 controller, allowing for flexible network topologies without the need for external switches.
Features
Supports PROFINET IO Controller and PROFINET IO Device functionality.
Integrated 2-port switch (RJ45) for cost-effective 10/100 Mbit/s Ethernet connectivity.
Supports S7 communication, Fetch/Write, and SEND/RECEIVE services (RFC1006).
Includes advanced diagnostic capabilities and DHCP support.
Enables time-of-day synchronization via LAN.
Supports multicast communication and remote initialization via the network.
Technical Specifications
Model
6GK7343-1EX30-0XE0
Interface Speed
10/100 Mbit/s
Supply Voltage (External)
24V DC
Backplane Supply
5V DC
Power Connection
2-pole pluggable terminal block
Voltage Tolerance
+20% / -15%
Manufacturer
Siemens
Installation Guidelines
Ensure the PLC rack is powered down before inserting or removing the CP 343-1 module to prevent electrical damage.
Mount the module onto the S7-300 standard DIN rail and secure it using the integrated locking mechanism.
Connect the 24V DC power supply to the provided 2-pole pluggable terminal block, ensuring correct polarity.
Use high-quality shielded RJ45 Ethernet cables to minimize electromagnetic interference (EMI) in industrial environments.
Maintain proper ventilation around the S7-300 rack to ensure the module operates within its specified temperature range.
Verify that the backplane bus connector is fully seated to ensure reliable communication with the CPU.
FAQ
What is the primary function of the 6GK7343-1EX30-0XE0? This module serves as a communications processor that bridges the S7-300 PLC to Industrial Ethernet networks for data exchange and PROFINET IO control.
Does this module require an external power supply? Yes, it requires a 24V DC external power supply connected via the integrated 2-pole terminal block, in addition to the 5V power provided by the S7-300 backplane bus.
Can this module act as a PROFINET IO Controller? Yes, the CP 343-1 supports both PROFINET IO Controller and PROFINET IO Device roles, making it highly versatile for automation network architectures.
