SIEMENS 6ES7314-6CH04-0AB0 CPU314C-2 DP Processor – SIMATIC S7-300 Series
When a SIMATIC S7-300 CPU fails on the production floor, the consequences are immediate and severe: assembly lines halt, process variables go unmonitored, and every minute of unplanned downtime translates directly into lost revenue and missed delivery commitments. In high-throughput manufacturing, automotive body shops, chemical dosing systems, and water treatment facilities, the CPU is the brain of the entire control architecture — without it, every downstream actuator, sensor, and HMI becomes inert. The SIEMENS 6ES7314-6CH04-0AB0 is not a commodity component; it is the exact replacement that restores full system intelligence without re-engineering your existing rack configuration.
Within the SIMATIC S7-300 family, the CPU 314C-2 DP occupies a well-defined mid-range position: it delivers integrated I/O, onboard PROFIBUS-DP master/slave capability, and a work memory sufficient for complex sequential and process control programs — all without requiring additional communication modules for standard DP networks. Globally, the S7-300 platform remains one of the most widely deployed PLC families in discrete and process manufacturing, with millions of installed units across Europe, Asia, and the Americas. The 6ES7314-6CH04-0AB0 represents the mature, field-proven revision of this CPU, making it the preferred choice for both OEM machine builders and end-user maintenance teams managing long-lifecycle plant assets.
Technical Specifications
- Order Number: 6ES7314-6CH04-0AB0
- Product Family: SIMATIC S7-300
- CPU Type: CPU 314C-2 DP
- Work Memory: 192 KB
- Load Memory: Integrated 64 KB RAM + MMC slot
- Processing Speed (Bit Operations): 0.1 µs
- Integrated Digital Inputs: 24 × DI (24 V DC)
- Integrated Digital Outputs: 16 × DO (24 V DC, 0.5 A)
- Integrated Analog Inputs: 4 × AI (12-bit)
- Integrated Analog Outputs: 2 × AO (12-bit)
- Integrated Counting/Positioning: 4 × 60 kHz counters
- Communication Interface 1: MPI/PROFIBUS-DP (12 Mbit/s), DP Master/Slave
- Communication Interface 2: PROFIBUS-DP (12 Mbit/s), DP Master/Slave
- Supply Voltage: 24 V DC
- Power Consumption: Typically 2.5 W
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: −40 °C to +70 °C
- Dimensions (W × H × D): 80 × 125 × 130 mm
- Weight: Approx. 500 g
- Protection Class: IP20
- Certifications: CE, UL, cULus, ATEX (Zone 2)
Note: All specifications are sourced from Siemens official documentation. Konmask.com does not modify or fabricate technical data.
Key Features & Benefits
- Integrated PROFIBUS-DP Master/Slave (×2): Eliminates the need for a separate CP 342-5 communication module, reducing rack width and system cost in standard DP topologies.
- Onboard Compact I/O: 24 DI / 16 DO / 4 AI / 2 AO built into the CPU housing — ideal for small-to-medium machine panels where minimizing module count is critical.
- High-Speed Counting (4 × 60 kHz): Supports encoder feedback, frequency measurement, and positioning tasks directly at the CPU level without additional FM modules.
- 192 KB Work Memory: Accommodates complex structured programs (STL, LAD, FBD, SCL) with sufficient headroom for large data blocks and process images.
- MMC-Based Program Retention: Program and data are stored on a Micro Memory Card — no battery required for program backup, simplifying long-term maintenance.
- Direct Drop-In Replacement: Fully compatible with existing S7-300 racks, power supplies, and I/O modules; no hardware re-wiring or software migration required for like-for-like swap.
- STEP 7 & TIA Portal Compatible: Programmable and configurable via both legacy STEP 7 V5.x and TIA Portal with appropriate hardware support packages.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white welding lines, paint shop conveyors, engine assembly test benches
- Food & Beverage: Filling and capping machines, pasteurization control, CIP (Clean-In-Place) systems
- Chemical & Pharmaceutical: Batch reactor control, dosing and blending systems, cleanroom HVAC automation
- Water & Wastewater Treatment: Pump station control, filtration sequencing, SCADA-integrated monitoring
- Packaging Machinery: Form-fill-seal machines, palletizers, labeling and inspection lines
- Material Handling: Conveyor routing, sortation systems, automated storage and retrieval (AS/RS)
- Energy & Utilities: Substation automation, turbine auxiliary control, district heating networks
System Integration & Compatible Parts
The 6ES7314-6CH04-0AB0 is designed to operate within the standard SIMATIC S7-300 ecosystem. Commonly paired components include:
- Power Supplies: PS 307 series (6ES7307-1BA01-0AA0, 6ES7307-1EA01-0AA0)
- Signal Modules: SM 321 / SM 322 / SM 331 / SM 332 digital and analog I/O modules
- Micro Memory Card: 6ES7953-8LJ31-0AA0 (4 MB MMC) — required for program storage
- PROFIBUS-DP Slaves: ET 200M, ET 200S, ET 200eco distributed I/O stations
- HMI: SIMATIC TP/MP series panels via MPI or PROFIBUS-DP
- Programming Cable: PC Adapter USB (6ES7972-0CB20-0XA0) for STEP 7 / TIA Portal connection
- Rack: UR1 / UR2 universal racks (6ES7390-1AE80-0AA0 / 6ES7390-1AF30-0AA0)
Our Quality Assurance Process
At Konmask.com, every unit of the 6ES7314-6CH04-0AB0 passes through a structured verification process before dispatch:
- Source Verification: Units are sourced exclusively from authorized distributors, certified resellers, or directly from OEM-controlled supply chains. Grey-market and counterfeit channels are strictly excluded.
- Visual & Physical Inspection: Housing integrity, label authenticity, connector condition, and firmware version markings are checked against Siemens reference standards.
- Functional Pre-Test (where applicable): Select units undergo power-on verification and communication port testing prior to packaging.
- Secure Packaging: Anti-static ESD bags, foam-lined cartons, and moisture-barrier sealing are used for all shipments to prevent transit damage.
- Documentation: Each order is accompanied by a packing list, inspection record, and — where available — original manufacturer documentation or test certificates.
How to Order
- Submit an Inquiry: Contact us via the form below or email support@konmask.com with your required quantity and delivery timeline.
- Receive a Quotation: Our team will respond within 1 business day with pricing, lead time, and availability confirmation.
- Order Confirmation: Upon agreement, a proforma invoice is issued. Payment terms are discussed based on order volume and customer profile.
- Shipment & Tracking: Orders are dispatched via DHL, FedEx, or UPS Express with full tracking. Export documentation (commercial invoice, packing list, COO) is provided for customs clearance.
- After-Sales Support: Our technical team is available post-delivery for integration questions and warranty claims.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, HMI, and drive components — not a generalist electronics marketplace.
- Global B2B Supply: Serving OEMs, system integrators, and MRO procurement teams across Asia, Europe, the Middle East, and the Americas.
- Fast Response: Inquiries answered within 1 business day; urgent requirements handled with priority sourcing.
- Competitive Pricing: Direct relationships with distributors and volume purchasing enable us to offer market-competitive quotes.
- Reliable Logistics: Experienced in export compliance, dangerous goods classification, and multi-country customs documentation.
- Long-Term Partnership: We maintain order history and technical records to support repeat procurement and lifecycle management for your installed base.
Frequently Asked Questions
Q: Is the 6ES7314-6CH04-0AB0 a new, refurbished, or used unit?
A: Konmask.com supplies both new (factory-sealed) and professionally refurbished units depending on availability. The condition is clearly stated in the quotation. All refurbished units pass our QA inspection process.
Q: What is the difference between 6ES7314-6CH04-0AB0 and earlier revisions such as 6ES7314-6CF02-0AB0?
A: The -6CH04- revision features expanded work memory (192 KB vs. earlier 96 KB variants), improved processing speed, and enhanced diagnostic capabilities. It is the recommended replacement for all earlier CPU 314C-2 DP variants.
Q: Do I need a Micro Memory Card (MMC) to operate this CPU?
A: Yes. The CPU 314C-2 DP requires an MMC (e.g., 6ES7953-8LJ31-0AA0) for program storage. The CPU will not retain the user program without an MMC inserted. Please specify if you need an MMC included with your order.
Q: Can this CPU be programmed with TIA Portal?
A: Yes, with limitations. TIA Portal supports S7-300 CPUs via the “S7-300/400 Migration” hardware support package. Full native TIA Portal programming is available on S7-1500 series. For new projects, Siemens recommends migrating to S7-1500; for existing S7-300 installations, STEP 7 V5.6 or TIA Portal with HSP is the standard approach.
Q: What is the typical lead time for delivery?
A: For in-stock units, dispatch is within 2–5 business days. For sourced units, lead time is typically 1–3 weeks depending on origin. Urgent requirements can be accommodated — please indicate your deadline in the inquiry.
Q: Does Konmask.com provide export documentation for customs clearance?
A: Yes. We provide a commercial invoice, packing list, and certificate of origin as standard. Additional documentation (e.g., EUR.1, Form A, test certificates) can be arranged upon request.
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