The Siemens 6AG1343-1EX30-4XE0 is a compact S7-300 PROFINET IO switch module that supports DCP (Discovery and Configuration Protocol), NTP (Network Time Protocol), and LLDP (Link Layer Discovery Protocol) for network management and time synchronization. It includes a 2-port switch with IRT (Isochronous Real-Time) support, ring redundancy, and ACL IP-based filtering, making it suited for high-availability PROFINET networks.
Power and Mounting
The module is powered by a dual supply: 24 V DC from an external 2-pole pluggable terminal block and 5 V DC from the S7-300 backplane bus, drawing 0.2 A typical from the backplane. Compact S7-300 single-width format measuring 40 mm wide, 125 mm high, and 120 mm deep. IP20 protection class. Operating temperature 0 to 40 °C when mounted vertically.
Key Ratings and Capabilities
Supports up to 32 submodules per PROFINET IO-Device and 16 multicast stations. Power loss is 5.8 W. Network interfaces are RJ45 ports with 10/100 Mbit/s at the first interface. Additional protocols include SNMP, MIB support, and SICLOCK for clock synchronization.