Siemens 6GK7343-1GX31-0XE0 SIMATIC NET CP 343-1 Advanced Gigabit PROFINET PLC Communication Module

The Siemens CP 343-1 Advanced (6GK7343-1GX31-0XE0) is a communications processor that connects a SIMATIC S7-300 CPU to Industrial Ethernet with a Gigabit RJ45 port plus a 2-port 10/100 Mbit/s switch, operating as a PROFINET IO controller for up to 128 IO devices or as an IO device with IRT support. It adds PROFINET CBA, firewall/VPN security, and PROFIenergy, drawing 24 V DC at 0.48 A typical.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• KC
• RCM
• RoHS
• EAC
• ATEX
• IECEx
• ULhazloc
• CCC-Ex

Selection Notes

The Gigabit uplink plus a separate 2-port 10/100 switch let this CP run a high-speed backbone connection alongside a local PROFINET IO line, and its 128-device IO controller capacity with IRT support covers larger S7-300 machine cells than the Lean variant's device-only role. Choose the Advanced module when the station must act as a PROFINET IO controller, needs PROFINET CBA, or requires VPN/firewall security - the Lean CP covers none of these.

Applications

Suited to S7-300 stations acting as a PROFINET IO controller for machine or line segments, or where VPN/firewall protection and Gigabit backbone connectivity are required alongside PROFINET CBA component-based automation.