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Siemens 6ES7340-1AH00-7CA0 — PLC I/O & Expansion Modules

Siemens 6ES7340-1AH00-7CA0 CP 340, end-of-life hot

MPN6ES7340-1AH00-7CA0
End of Life

Siemens CP 340 configuring package, 6ES7340-1AH00-7CA0, end-of-life hot (EOL) — a serial communications processor for the S7-300 PLC platform.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Product details

The 6ES7340-1AH00-7CA0: The CP 340 is a serial communications processor for the Siemens S7-300 PLC system. This configuring package provides the software and documentation to set up and commission the CP 340 for point-to-point serial links — typically used to connect S7-300 to drives, printers, barcode scanners, or other serial devices. The CP 340 module itself mounts on the S7-300 DIN-rail rack and communicates over the backplane bus.

Frequently asked questions

Does Siemens CP 340 fit S7-300 PLC?

Yes, the CP 340 communications processor is designed for the Siemens S7-300 PLC system. It mounts on the S7-300 DIN-rail rack and communicates over the backplane bus. This configuring package provides the setup software and documentation for that integration.

MPN
6ES7340-1AH00-7CA0