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The Siemens 6GK7343-1CX10-0XE0 is a communications processor that connects the SIMATIC S7-300 to Industrial Ethernet. This module offloads communication tasks from the CPU for better performance. It supports TCP/IP, UDP, and multicast protocols for flexible networking. This device also serves as a PROFINET IO device with an integrated 2-port switch. Additionally, it offers web-based diagnostics and SNMP management for efficient monitoring.
Technical Specifications
The Siemens 6GK7343-1CX10-0XE0 comes in a compact S7-300 single-width form factor. The module weighs 0.22 kg and measures 40 x 125 x 120 mm. It features two RJ45 ports for LAN connection at 10/100 Mbps. For power, it draws 5 V DC from the backplane bus at 0.2 A typical. It also requires a 24 V DC external supply, consuming up to 0.2 A. The total power loss is 5.8 W. Furthermore, the module supports up to 4 S7 connections and 8 open communication connections.
Key Technical Data
| Parameter | Specification |
|---|---|
| Product Type | CP 343-1 Lean Communications Processor |
| Transmission Rate | 10/100 Mbps |
| Interfaces | 2x RJ45 (Industrial Ethernet) |
| Power Supply | 5 V DC (backplane), 24 V DC (external) |
| Current Consumption (24 V DC) | 0.16 A typical, 0.2 A max |
| Power Loss | 5.8 W |
| Dimensions (W x H x D) | 40 x 125 x 120 mm |
| Net Weight | 0.22 kg |
| Protection Class | IP20 |
| Ambient Temperature (Horizontal) | 0 °C to +60 °C |
| Ambient Temperature (Vertical) | 0 °C to +40 °C |
Communication Capabilities
This processor excels in multiple communication protocols and connection types. It handles S7 communication for up to 4 connections. For open communication, it manages up to 8 SEND/RECEIVE connections . Each TCP or ISO-on-TCP connection can transfer up to 8 KB of user data . For UDP, the maximum data volume is 2 KB per connection. It also supports up to 8 multicast stations. The module operates in multi-protocol mode with up to 12 active connections. Consequently, it integrates seamlessly into diverse automation networks.
PROFINET and Diagnostic Functions
The Siemens 6GK7343-1CX10-0XE0 functions as a PROFINET IO device. It handles up to 512 bytes of input and output data each, with 240 bytes per submodule . The device supports up to 32 submodules. For diagnostics, it provides SNMP v1, MIB support, and web-based diagnostics. It also features DCP and LLDP protocols. Moreover, it supports ring redundancy via Media Redundancy Protocol (MRP). Time synchronization is available through NTP and SICLOCK support. Security features include IP-based ACL and the ability to disable non-required services .
Installation and Configuration
Installing this communications processor is straightforward. It mounts directly onto the S7-300 DIN rail and connects via the backplane bus . Configuration requires STEP 7 V5.4 or higher, or STEP 7 Professional V11 (TIA Portal) or higher . The module supports remote programming and initial startup via LAN. It also allows module replacement without a PG. Therefore, this device ensures minimal downtime and efficient maintenance.