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Siemens 6ES7340-1AH00-7AA0 — PLC I/O & Expansion Modules

Siemens 6ES7340-1AH00-7AA0 CP 340 Configuring Package

MPN6ES7340-1AH00-7AA0
End of Life

Siemens 6ES7340-1AH00-7AA0, CP 340 configuring package, PLC I/O & Expansion Modules, lifecycle stage eol_hot.

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

Product details

What the eol_hot lifecycle means for your BOM

The 6ES7340-1AH00-7AA0: For an active S7-300 line, securing stock now avoids a forced migration mid-cycle. The CP 340 handles point-to-point serial communication (RS-232/RS-422/RS-485) for protocols like Modbus RTU and ASCII — if your application relies on that specific serial interface, the eol_hot flag means the supply chain is tightening.

Sourcing reality for the 6ES7340-1AH00-7AA0

No stock-holding claim — each order is placed to your spec. The eol_hot status means factory allocations are shrinking. If you need a handful for a line-down repair or a batch for a production run, the spread between buy and sell narrows as supply tightens — the margin lives in the gap, so locking in a quote early matters.

Frequently asked questions

What is the replacement for 6ES7340-1AH00-7AA0?

The CP 341 is a different processor with a different feature set and is not a direct pin-compatible drop-in. For a like-for-like replacement, the independent surplus channel is the current option.

Where to buy Siemens 6ES7340-1AH00-7AA0?

Available to order through independent distribution against an RFQ. No stock-holding claim — each order is sourced to your BOM quantity.

MPN
6ES7340-1AH00-7AA0