6GK7343-1EX11-0XE0 SIEMENS

6GK7343-1EX11-0XE0 Siemens Basis unit

Brand：SIEMENS Model number：6GK7343-1EX11-0XE0

Country of origin: Germany Product weight：0.55kg

HS code：8517623990

Product Details：

Product Dimensions：

The Siemens 6GK7343-1EX11-0XE0 is a Communications Processor (CP 343-1) specifically designed for the SIMATIC S7-300 automation system. It acts as an interface module that allows the S7-300 PLC to connect to Industrial Ethernet networks. This module is essential for integrating the controller into larger factory networks, enabling high-speed data exchange between different PLCs, HMIs, and supervisory systems. It supports a variety of communication services including ISO-on-TCP, TCP/IP, and UDP protocols.

Product Parameters

Product Type: SIMATIC NET CP 343-1 Communications Processor
Transmission Rate: Supports 10 Mbps and 100 Mbps (autosensing)
Interface: 1 x RJ45 port for Industrial Ethernet connection
Supply Voltage: 24 V DC (via backplane bus or external supply)
Current Consumption: Maximum 0.2 A from the backplane bus
Power Loss: Approximately 5.8 W
Connection Capacity: Supports up to 16 simultaneous S7, TCP, or ISO-on-TCP connections
PROFINET Functionality: Supports PROFINET IO Device and PROFINET CBA (Component Based Automation)
Addressing: IP address assignment via DHCP, BootP, or STEP 7 software
Dimensions: 40 mm (width) x 125 mm (height) x 120 mm (depth)
Weight: Approximately 0.22 kg

Product Advantages

High Integration: Specifically designed for the S7-300, it provides a seamless fit within the hardware rack and requires no additional external power supply cables when used with standard backplane configurations.
Versatile Communication: The module supports multiple protocols simultaneously, allowing it to communicate with both modern PROFINET devices and older ISO/TCP based industrial equipment.
Network Security: It provides a basic level of security by isolating the control network from the enterprise network, and it can be used to manage data traffic efficiently.
Ease of Configuration: Fully integrated into the Siemens STEP 7 engineering environment, making it easy for engineers to configure IP addresses and communication blocks without deep networking expertise.
Robust Design: Built for industrial environments, it handles vibrations and wide temperature ranges better than standard commercial networking hardware.

Important Considerations

Lifecycle Status: This specific model is an older version of the CP 343-1. It has largely been succeeded by the 6GK7343-1EX30-0XE0. Users should check for firmware updates or consider newer models for improved security features and higher connection limits.
Single Port Limitation: Unlike newer "Lean" or "Advanced" versions that may have built-in switches with multiple ports, this model features a single RJ45 port. An external industrial switch is required if you need to daisy-chain multiple devices.
Proper Grounding: To ensure reliable communication and prevent electromagnetic interference (EMI), the S7-300 rail must be properly grounded, and shielded Ethernet cables (STP) should be used.
Power Cycles: Always ensure the PLC rack is powered down before inserting or removing the module to prevent damage to the backplane bus connectors.

Product Applications

The 6GK7343-1EX11-0XE0 is used in a wide range of industrial automation scenarios.

PLC-to-PLC Communication: It allows multiple S7-300 or S7-400 controllers to exchange data over a central Ethernet backbone for coordinated machine control.
HMI and SCADA Connectivity: It serves as the bridge between the factory floor controller and supervisory systems like WinCC or physical touch panels that require an Ethernet connection.
Data Logging: Frequently used to send production data, fault codes, and performance metrics to a central PC or server for analysis.
Remote Programming: Enables engineers to upload, download, and monitor PLC logic remotely over the company network instead of connecting a laptop directly to the front of the CPU.
PROFINET IO Integration: Functions as a PROFINET IO device, allowing it to be controlled by a higher-level PROFINET IO controller in complex distributed systems.

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