CPU 314C-2 PN/DP Sourcing Guide for Legacy S7-300 Systems

The Siemens SIMATIC S7-300 CPU 314C-2 PN/DP (Part No. 6ES7314-6EH04-0AB0) is currently in a critical transition period, moving from an active industrial standard to an obsolete spare part.

Product Insights & Capabilities

* Compact Integration: As a "Compact" CPU, it integrates diverse I/O directly on the module (24 Digital Inputs, 16 Digital Outputs, 4 Analog Inputs, 2 Analog Outputs, and 1 Pt100) Electricautomationnetwork Eichler-Service.

* Dual Communication: It features a multi-protocol interface (MPI/DP) for legacy PROFIBUS networks and a PROFINET interface with an integrated 2-port switch for modern Ethernet daisy-chaining Eichler-Service.

* Performance: Compared to its non-PROFINET predecessor, it offers 50% more work memory (192 KB) and 4 high-speed counters (60 kHz) for positioning tasks Industrialmonitordirect Electricautomationnetwork.

Market Trends & Lifecycle Status

* Official Phase-Out: The product entered the "Product Phase-out" stage (PM400) on October 1, 2023 Electricautomationnetwork. Siemens has scheduled the official Product Cancellation (discontinuation) for October 1, 2025 Linkedin Eichler-Service.

* Obsolescence Premium: The market is seeing a typical "historical pattern" of 50–200% price increases as new stock diminishes Industrialmonitordirect Reddit. Current pricing on B2B platforms ranges widely from $259 for refurbished units to over $900 for new original stock Alibaba Alibaba.

* Secondary Market Dominance: Availability is shifting from official distribution to specialized spare parts vendors offering repair, exchange, and refurbished units to support legacy systems until migration to the S7-1500 series is completed Eichler-Service Electricautomationnetwork.

Cpu 314c 2pn Dp

Overview

Product Insights & Capabilities

Market Trends & Lifecycle Status

Siemens Simatic S7 300 Cpu 314c 2 Pn Dp 6es7314 6eh04 0ab0

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Sources & References