Siemens 6GK7343-1EX30-0XE0 SIMATIC NET CP 343-1 PROFINET IO 2x RJ45 10/100 Mbit/s PLC Communication Module

The Siemens CP 343-1 (6GK7343-1EX30-0XE0) is a communication processor that connects a SIMATIC S7-300 CPU to Industrial Ethernet, offering an integrated 2-port ERTEC 200 switch, 10/100 Mbit/s over two RJ45 ports, and support for both PROFINET IO controller and IO device operation. It handles S7 communication, open communication via SEND/RECEIVE, and multicast, drawing 24 V DC at 0.16 A typical plus 0.2 A from the backplane bus.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• KC
• RCM
• RoHS
• EAC
• ATEX
• IECEx
• ULhazloc
• CCC for hazardous zone

Selection Notes

The integrated 2-port switch lets this CP sit inline in a PROFINET line or ring topology without a separate switch, and it can run simultaneously as a PROFINET IO controller for up to 32 IO devices or as an IO device with 512 byte of input and output data - useful where the same station both hosts remote I/O and reports into a higher-level controller. Choose it over the CP 443-1 series when the backplane is S7-300 rather than S7-400, since the two module formats are not interchangeable.

Applications

Adds PROFINET/Industrial Ethernet connectivity, S7 routing, and open communication (SEND/RECEIVE, multicast) to S7-300 stations in machine and process cells that need to exchange data with SCADA, MES, or other S7 controllers over Ethernet.