Features:
- The CP 343-1 links an S7-300 CPU to Industrial Ethernet and PROFINET services.
- Two 10/100 Mbit/s RJ45 ports form an integrated switch on one PROFINET interface.
- Backplane and external 24 V supplies serve different sections of the communication processor.
CPU communication enters through the S7-300 backplane and leaves through the configured Ethernet service.
The integrated switch forwards frames between its two ports as well as toward the communication processor.
LEDs and diagnostic data identify link, operating and fault conditions without reducing every issue to a CPU error.
The Siemens 6GK7343-1EX30-0XE0 CP 343-1 Communication Processor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6GK7343-1EX30-0XE0 CP 343-1 Communication Processor Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Mapping controller jobs to Ethernet services
- S7 communication: The CP transports configured S7 communication jobs between the S7-300 station and Ethernet partners.
- Open services: Configured TCP, UDP and ISO-on-TCP connections use the same Ethernet interface.
- PROFINET IO: The processor carries the configured PROFINET IO role and device traffic.
- CPU exchange: All controller-side data reaches the CP through the S7-300 backplane.
Using two RJ45 sockets on one interface
- Port pair: Both RJ45 sockets belong to the integrated two-port Industrial Ethernet switch.
- Link rate: Each port negotiates the documented 10 or 100 Mbit/s Ethernet connection.
- Line topology: Frames can pass from one port to the other while the CP exchanges its own network traffic.
- Ring support: Media Redundancy Protocol can be configured when the surrounding topology supports it.
Keeping rack and network parameters aligned
- Hardware catalog: The loaded project must select the complete 6GK7343-1EX30-0XE0 hardware entry.
- IP parameters: Device name, IP addressing and subnet values identify the CP on Industrial Ethernet.
- Connection data: S7, open communication and PROFINET relationships are created for the required service.
- Download path: Configuration is transferred through the supported station or network commissioning route.
Separating supply faults from network faults
- Backplane power: The rack provides the 5 V DC path used by the S7-300 interface.
- External source: A separate front connection supplies the CP from 24 V DC.
- Link indicators: Port LEDs report link and activity for the individual Ethernet sockets.
- Module diagnosis: Operating and fault LEDs distinguish processor state from a missing network link.