{"product_id":"siemens-6es7314-6ch04-0ab0-original-industrial-spare-cpu314c-2-dp-compatible","title":"Siemens 6ES7314-6CH04-0AB0 Original Industrial Spare CPU314C-2 DP Compatible","description":"\u003ch2\u003eSiemens 6ES7314-6CH04-0AB0 CPU314C-2 DP: Industrial-Grade System Stability Spare\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSiemens 6ES7314-6CH04-0AB0\u003c\/strong\u003e is a high-performance compact CPU from the SIMATIC S7-300 series, engineered for demanding industrial automation environments. As a direct original spare, this unit ensures seamless continuity of your production line without costly reprogramming or system reconfiguration. Designed for process industries, manufacturing cells, and distributed control architectures, the CPU314C-2 DP integrates onboard I\/O with a built-in PROFIBUS DP master interface — making it the backbone of reliable, scalable automation systems.\u003c\/p\u003e\n\n\u003cp\u003eWhether you are managing a scheduled maintenance window or responding to an unplanned failure, having a verified original \u003cstrong\u003e6ES7314-6CH04-0AB0\u003c\/strong\u003e on hand is the single most effective strategy to minimize Mean Time to Repair (MTTR) and protect your operational uptime. This unit is fully compatible with existing S7-300 racks, power supplies, and signal modules, enabling a drop-in replacement with zero hardware redesign.\u003c\/p\u003e\n\n\u003ch3\u003eCritical Technical Specs\u003c\/h3\u003e\n\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e6ES7314-6CH04-0AB0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-300\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCPU Type\u003c\/td\u003e\n\u003ctd\u003eCPU314C-2 DP\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWork Memory\u003c\/td\u003e\n\u003ctd\u003e192 KB (expandable via MMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOnboard Digital I\/O\u003c\/td\u003e\n\u003ctd\u003e24 DI \/ 16 DO\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOnboard Analog I\/O\u003c\/td\u003e\n\u003ctd\u003e4 AI \/ 2 AO\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eMPI + PROFIBUS DP Master (12 Mbit\/s)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCounting \/ Positioning\u003c\/td\u003e\n\u003ctd\u003e4 × 60 kHz counters\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions (W×H×D)\u003c\/td\u003e\n\u003ctd\u003e80 × 125 × 130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 620 g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e12 Months\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePreventive Maintenance Strategy\u003c\/h3\u003e\n\n\u003cp\u003eReplacing the \u003cstrong\u003e6ES7314-6CH04-0AB0\u003c\/strong\u003e CPU is rarely an isolated event — it is an opportunity to audit the health of your entire S7-300 control cabinet. During the replacement procedure, we strongly recommend a systematic inspection of all interconnected components to prevent cascading failures within 6–12 months of the CPU swap.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNetwork \u0026amp; Communication Layer:\u003c\/strong\u003e After restoring the CPU, verify the integrity of your PROFIBUS DP network. The \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/siemens-6gk7242-5dx30-0xe0-cm-1243-5-profibus-dp-slave-module\"\u003eSiemens 6GK7242-5DX30-0XE0 CM 1243-5 PROFIBUS DP Slave Module\u003c\/a\u003e is a frequent companion component — inspect its bus termination resistors and connector pins for oxidation or mechanical wear. Similarly, if your plant uses Ethernet-based supervisory control, audit the \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/siemens-6gk5008-0ba10-1ab2-industrial-ethernet-switch\"\u003eSiemens 6GK5008-0BA10-1AB2 Industrial Ethernet Switch\u003c\/a\u003e for port errors and firmware currency.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePower Supply Integrity:\u003c\/strong\u003e CPU failures are frequently preceded by power supply degradation. We recommend bench-testing or replacing the rack power supply in parallel with the CPU. The \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/siemens-6es7505-0ra00-0ab0-ps-60w-power-supply-module\"\u003eSiemens 6ES7505-0RA00-0AB0 PS 60W Power Supply Module\u003c\/a\u003e and the \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/siemens-6ds1003-8ba-power-supply-module-teleperm-m-system\"\u003eSiemens 6DS1003-8BA Power Supply Module\u003c\/a\u003e are proven replacements for aging power infrastructure in Siemens control systems.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eI\/O \u0026amp; Distributed Peripherals:\u003c\/strong\u003e With the CPU offline, take the opportunity to inspect field-level I\/O modules. The \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/siemens-6es7650-8dk80-1aa0-et-200pa-digital-input-module\"\u003eSiemens 6ES7650-8DK80-1AA0 ET 200PA Digital Input Module\u003c\/a\u003e is commonly deployed alongside S7-300 CPUs in distributed I\/O architectures — check for blown fuses, loose terminal connections, and LED fault indicators. For bus redundancy applications, inspect the \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/siemens-6es7654-7hy00-0xa0-bus-unit-simatic-s7-y-coupler-module\"\u003eSiemens 6ES7654-7HY00-0XA0 Bus Unit Y-Coupler Module\u003c\/a\u003e to ensure failover paths remain intact.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMemory \u0026amp; Program Backup:\u003c\/strong\u003e Before powering down the CPU, always back up the user program to a Micro Memory Card (MMC). The \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/siemens-c79040-a7320-c428-01-86-memory-module\"\u003eSiemens C79040-A7320-C428-01-86 Memory Module\u003c\/a\u003e provides a reliable storage medium for program retention across power cycles and hardware swaps.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMeasurement \u0026amp; Protection:\u003c\/strong\u003e For plants with energy monitoring requirements, verify that the \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/siemens-7kg6000-8ab-ll-digital-transducer\"\u003eSiemens 7KG6000-8AB\/LL Digital Transducer\u003c\/a\u003e is calibrated and communicating correctly. In high-voltage environments, confirm that the \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/siemens-7ut6125-4eb20-1aa0-bb-differential-protection-relay\"\u003eSiemens 7UT6125-4EB20-1AA0\/BB Differential Protection Relay\u003c\/a\u003e is operational to prevent surge damage to the newly installed CPU.\u003c\/p\u003e\n\n\u003ch3\u003eStrategic Replacement Solutions\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e6ES7314-6CH04-0AB0\u003c\/strong\u003e (firmware version V3.3) supersedes earlier CPU314C-2 DP variants including the 6ES7314-6CF02-0AB0 and 6ES7314-6CG03-0AB0. Key improvements in this revision include expanded work memory (192 KB vs. 96 KB in earlier versions), enhanced diagnostic buffer capacity, and improved PROFIBUS DP cycle time performance. For facilities still operating legacy CPU314 units without onboard DP, this model provides a direct upgrade path with full backward compatibility for existing S7-300 hardware racks and signal modules.\u003c\/p\u003e\n\n\u003cp\u003eFor applications requiring higher processing power or additional communication ports, the \u003ca href=\"https:\/\/www.indctrlhub.com\/products\/6es7-215-1hg40-0xb0-siemens-cpu-1215c-dc-dc-relay-module\"\u003eSiemens 6ES7215-1HG40-0XB0 CPU 1215C DC\/DC\/Relay Module\u003c\/a\u003e (S7-1200 series) represents a modern migration path with PROFINET integration and expanded onboard I\/O, suitable for new installations or major system upgrades.\u003c\/p\u003e\n\n\u003ch3\u003eSupport FAQ\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is the 6ES7314-6CH04-0AB0 still in production by Siemens?\u003c\/strong\u003e\u003cbr\u003e\nA: This model has reached end-of-life (EOL) status in Siemens' standard product portfolio. However, original new-old-stock (NOS) and factory-refurbished units remain available through authorized industrial spare parts distributors. All units supplied by Industrial Control Hub are tested and verified before shipment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What warranty is included with this spare part?\u003c\/strong\u003e\u003cbr\u003e\nA: Every 6ES7314-6CH04-0AB0 unit ships with a \u003cstrong\u003e12-month warranty\u003c\/strong\u003e covering manufacturing defects and functional failures under normal operating conditions. Warranty claims are processed within 5 business days with advance replacement options available for critical production environments.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use my existing MMC program card with the replacement CPU?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. The CPU314C-2 DP uses a standard Siemens Micro Memory Card (MMC) slot. Your existing program card will be recognized automatically upon first power-up, provided the firmware version on the card is compatible with the V3.3 hardware revision.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the typical lead time for this spare part?\u003c\/strong\u003e\u003cbr\u003e\nA: In-stock units ship within 1–3 business days. For urgent requirements, expedited shipping options (DHL Express, FedEx Priority) are available at checkout. Contact our team for same-day dispatch availability.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I verify the authenticity of the unit I receive?\u003c\/strong\u003e\u003cbr\u003e\nA: All units include original Siemens labeling, holographic authenticity seals where applicable, and a factory test report. Industrial Control Hub provides full traceability documentation upon request for quality audit purposes.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What happens to my spare part after the 12-month warranty expires?\u003c\/strong\u003e\u003cbr\u003e\nA: Post-warranty, our technical support team remains available for diagnostic assistance and repair referrals. We also maintain a stock of common S7-300 spare components to support long-term lifecycle management of your installed base.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003cp style=\"font-size:0.85em;color:#555;\"\u003e© 2026 INDUSTRIAL CONTROL HUB. All rights reserved.\u003cbr\u003e\nOriginal Source: \u003ca href=\"https:\/\/www.indctrlhub.com\"\u003ehttps:\/\/www.indctrlhub.com\u003c\/a\u003e\u003cbr\u003e\nContact: \u003ca href=\"mailto:sales@indctrlhub.com\"\u003esales@indctrlhub.com\u003c\/a\u003e | +0086 18359243191\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":48073518678275,"sku":"6ES7314-6CH04-0AB0","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0768\/6147\/files\/SIEMENS6ES7314-6CH04-0AB0CompactCPU.webp?v=1784621112","url":"https:\/\/www.indctrlhub.com\/products\/siemens-6es7314-6ch04-0ab0-original-industrial-spare-cpu314c-2-dp-compatible","provider":"Industrial Control Hub","version":"1.0","type":"link"}