Product details
The Siemens SIMATIC S7-300 CP 343-1 (6GK7343-1EX30-0XE0) is the genuine Industrial Ethernet communications processor that connects S7-300 controllers to Ethernet networks. For plants running older DP-only CPUs like the 315-2 DP, the CP 343-1 is the established retrofit path to SCADA connectivity, remote programming and data logging – without replacing the CPU or rewriting code.
- Connects SIMATIC S7-300 to Industrial Ethernet
- S7 communication, PG/OP access and open communication services
- Proven retrofit path for DP-only CPUs needing Ethernet/SCADA access
- Scarce since discontinuation – enquire early for lead time
- Discontinued by Siemens – sourced to order
Technical specifications
| Order number | 6GK7343-1EX30-0XE0 |
| Product range | SIMATIC S7-300 |
| Type | CP 343-1 communications processor |
| Interface | Industrial Ethernet (RJ45) |
| Services | S7 communication, PG/OP, open communication |
| Supply voltage | 24 V DC |
| Lifecycle status | Discontinued (Siemens phase-out October 2025) |
End-of-life availability
Siemens ended new production of the S7-300 / ET 200M range in October 2025, with official spares support winding down towards 2033. New units are no longer available through authorised channels. We source genuine S7-300 stock through our global parallel-import network specifically for Australian plants that need to keep existing installations running.
Request a quote online or call our team on 0403 082 383 to confirm stock, condition and lead time for the 6GK7343-1EX30-0XE0.
InstroDirect is an independent reseller and is not an authorised Siemens distributor. All products are 100% genuine, sourced through legitimate parallel-import channels.
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