Industrial Automation Solution – Siemens 6ES7315-1AF03-0AB0 CPU 315 | S7-300 Series
Where This Product Is Used
The Siemens 6ES7315-1AF03-0AB0 CPU 315 is a mid-range central processing unit designed for the SIMATIC S7-300 programmable logic controller platform. It is widely deployed across demanding industrial environments where reliable, deterministic control is non-negotiable:
- Automotive Manufacturing – Body-in-white welding lines, paint shop conveyors, and press automation requiring precise multi-axis sequencing.
- Chemical & Petrochemical Plants – Reactor control, batch processing, and safety interlock systems operating under continuous duty cycles.
- Water & Wastewater Treatment – Pump station control, dosing systems, and SCADA-integrated monitoring for municipal utilities.
- Food & Beverage Processing – Filling lines, pasteurization control, and CIP (Clean-In-Place) automation with hygienic-area panel integration.
- Material Handling & Logistics – Conveyor routing, sortation systems, and automated storage/retrieval (AS/RS) coordination.
- Power Generation & Distribution – Turbine auxiliary control, switchgear automation, and substation monitoring panels.
- Machine Tool & OEM Equipment – Standalone CNC auxiliary control, injection molding machines, and packaging machinery.
Technical Specifications
- Part Number: 6ES7315-1AF03-0AB0
- Series: SIMATIC S7-300
- Module Type: CPU 315 – Central Processing Unit
- Work Memory: 48 KB (program) / 48 KB (data)
- Load Memory: Integrated 80 KB RAM; expandable via Memory Card (up to 4 MB)
- Processing Speed: 0.3 ms / 1000 binary instructions
- Digital I/O (max): 1024 inputs / 1024 outputs
- Analog I/O (max): 256 inputs / 256 outputs
- Communication Interface: MPI (Multi-Point Interface), 187.5 kbps
- Programming Language: LAD, FBD, STL, S7-Graph, S7-HiGraph (via STEP 7)
- Supply Voltage: 24 V DC (via PS 307 power supply module)
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: –40 °C to +70 °C
- Protection Rating: IP20
- Dimensions (W×H×D): 40 × 125 × 130 mm
- Weight: Approx. 290 g
- Certifications: CE, UL, cULus, ATEX (Zone 2)
Why Engineers Specify This Model
- Proven S7-300 Ecosystem: Seamlessly integrates with the full SIMATIC S7-300 I/O range, ET 200 distributed I/O, and HMI panels — minimizing engineering risk on brownfield upgrades.
- Deterministic Scan Cycle: 0.3 ms/1K instruction throughput ensures tight loop control for motion-adjacent and process-critical applications.
- MPI Network Simplicity: Native MPI port enables direct programming and HMI connection without additional communication modules, reducing BOM cost.
- Memory Card Expandability: Supports Siemens MMC (Micro Memory Card) for program backup, firmware updates, and recipe storage — critical for multi-recipe production lines.
- Long Field Track Record: The CPU 315 platform has accumulated decades of field hours across global installations, with extensive third-party documentation and integrator expertise.
- STEP 7 Compatibility: Fully programmable with Siemens STEP 7 v5.x, the most widely deployed PLC programming environment in European and Asian industrial markets.
Complete System Bill of Materials
A typical S7-300 control panel built around the 6ES7315-1AF03-0AB0 requires the following components:
- Power Supply: 6ES7307-1BA01-0AA0 (PS 307, 24 V DC / 2 A) or 6ES7307-1EA01-0AA0 (5 A)
- CPU (this unit): 6ES7315-1AF03-0AB0
- DIN Rail & Bus Connectors: 6ES7390-1AE80-0AA0 (DIN rail 482 mm) + 6ES7390-5AA00-0AA0 (bus connector)
- Digital Input Module: 6ES7321-1BH02-0AA0 (SM 321, 16 × 24 V DC DI)
- Digital Output Module: 6ES7322-1BH01-0AA0 (SM 322, 16 × 24 V DC DO)
- Analog Input Module: 6ES7331-7KF02-0AB0 (SM 331, 8 × AI)
- Memory Card: 6ES7953-8LF31-0AA0 (MMC 4 MB)
- Programming Cable / PC Adapter: 6ES7972-0CB20-0XA0 (PC Adapter USB)
- HMI Panel (optional): 6AV6647-0AB11-3AX0 (KTP600 Basic PN)
Compliance & Industry Standards
- CE Marking: Compliant with EU Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU
- UL / cULus Listed: Recognized for use in North American industrial control panels
- ATEX Zone 2: Suitable for installation in potentially explosive atmospheres (gas group IIC, temperature class T4)
- IEC 61131-2: Programmable controllers – Equipment requirements and tests
- EN 61000-6-2 / EN 61000-6-4: Industrial EMC immunity and emission standards
- RoHS Compliant: Restriction of Hazardous Substances per EU Directive 2011/65/EU
Quality Assurance & Sourcing
At Konmask.com, every unit of the 6ES7315-1AF03-0AB0 undergoes a structured verification process before dispatch:
- Visual Inspection: Housing integrity, label authenticity, connector pin condition, and seal verification checked against OEM reference samples.
- Functional Power-On Test: Each CPU is powered up and firmware version confirmed via STEP 7 diagnostic read.
- Authenticity Screening: Batch traceability cross-referenced against authorized distributor documentation where available.
- Anti-Static Packaging: Shipped in ESD-safe bags with foam cushioning inside double-wall corrugated cartons.
- Warranty: 12-month warranty against manufacturing defects. DOA (Dead on Arrival) replacement within 7 business days.
How to Source This Part
Konmask.com maintains stock of the Siemens 6ES7315-1AF03-0AB0 for immediate dispatch. To place an order or request a formal quotation:
- Online: Add to cart directly on this page and proceed to checkout.
- Email RFQ: Send your purchase order or BOM to support@konmask.com for volume pricing.
- Phone / WhatsApp: +0086 19859288691 (Mon–Fri, 09:00–18:00 CST)
- Lead Time: In-stock units ship within 1–2 business days. Ex-stock international delivery: 5–10 business days via DHL / FedEx.
- Payment: T/T (Wire Transfer), PayPal, and major credit cards accepted.
Application-Specific FAQ
Q: Is the 6ES7315-1AF03-0AB0 compatible with TIA Portal?
A: No. This CPU is programmed exclusively with Siemens STEP 7 Classic (v5.4 or higher). TIA Portal supports the S7-300 family only from CPU 315-2 PN/DP and newer variants. For TIA Portal compatibility, consider the 6ES7315-2EH14-0AB0.
Q: Can I use this CPU in a PROFIBUS DP network?
A: The 315-1AF03-0AB0 features only an MPI interface. It does not support PROFIBUS DP master/slave operation. For PROFIBUS DP, specify the CPU 315-2 DP (6ES7315-2AF03-0AB0).
Q: What is the maximum number of S7-300 I/O modules I can connect?
A: Up to 8 modules per rack, with a maximum of 4 expansion racks (ER), giving up to 32 signal modules total per station.
Q: Does this unit support Ethernet / PROFINET?
A: No. The 315-1AF03-0AB0 has no integrated Ethernet port. For PROFINET IO controller functionality, use the CPU 315-2 PN/DP (6ES7315-2EH14-0AB0) or add a CP 343-1 communication processor.
Q: Can I replace a failed 315-1AF03-0AB0 without re-programming?
A: Yes — if the program is stored on a Micro Memory Card (MMC). Insert the MMC from the failed unit into the replacement CPU; it will load the program automatically on first power-up.
Q: What is the difference between 6ES7315-1AF03-0AB0 and 6ES7315-1AF01-0AB0?
A: The -0AB0 suffix denotes the standard version. The -1AF03 revision introduced improved EMC performance and extended operating temperature tolerance versus the earlier -1AF01 revision. Both are functionally equivalent for most applications.
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Contact: support@konmask.com | +0086 19859288691
