Siemens 6GK7343-1EX11-0XE0 Communications Processor

Siemens 6GK7343-1EX11-0XE0 Communications Processor, CP343-1 Advanced, is a single-port Ethernet communications module for the SIMATIC S7-300 line that links a CPU to Industrial Ethernet networks. It provides one 10/100 Mbit/s Ethernet interface (RJ45) for ISO, TCP/IP and UDP communications, enabling S7 data exchange (fetch/write, SEND/RECEIVE) over Industrial Ethernet and supporting RFC1006 diagnostic options and LAN-based initialization. The unit is powered from the backplane at 5 V and accepts an external 24 V supply for the device, mounting in the backplane of the S7-300 rack to expose the Ethernet connection to the network. This CP343-1 Advanced module is designed specifically for connecting S7-300 controllers to Ethernet networks and is not a Profinet IO controller, distinguishing it from PN-enabled devices and defining its use in classic Ethernet configurations rather than Profinet IO systems.