Siemens 6ES7318-3FL00-0AB0 CPU Module – SIMATIC S7-300 Series
When a CPU module fails on the production floor, the entire automated line comes to a halt — conveyors stop, robotic arms freeze, and every idle minute translates directly into lost revenue and missed delivery commitments. In high-stakes environments such as automotive assembly, chemical processing, and power distribution, the central processing unit is the brain of the control system; without it, no logic executes, no safety interlock responds, and no data reaches the SCADA layer. The Siemens 6ES7318-3FL00-0AB0 is the replacement and upgrade component that restores full operational capability with zero compromise on compatibility.
The 6ES7318-3FL00-0AB0 occupies the high-performance tier of the SIMATIC S7-300 family — Siemens’ most widely deployed modular PLC platform globally, with millions of installed units across more than 100 countries. This CPU variant integrates a built-in PROFIBUS-DP master/slave interface alongside the standard MPI port, making it the preferred choice for engineers who need to orchestrate distributed I/O networks, drives, and intelligent field devices from a single controller. Its position in the S7-300 lineup bridges the gap between mid-range processing power and the communication density demanded by complex, multi-axis automation architectures.
Technical Specifications
- Part Number / SKU: 6ES7318-3FL00-0AB0
- Product Family: SIMATIC S7-300
- Module Type: CPU Module
- Manufacturer: Siemens AG
- Communication Interfaces: MPI + integrated PROFIBUS-DP (DP master/slave)
- Programming Software: STEP 7 (SIMATIC Manager) / TIA Portal (with compatibility layer)
- Mounting: DIN rail (S7-300 standard rack)
- Power Supply: Via S7-300 backplane bus (PS 307 or equivalent)
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: -40 °C to +70 °C
- Protection Class: IP20
- Weight: Approx. 1,250 g (as configured)
- Firmware: Refer to Siemens product documentation for current firmware revision
Note: All specifications are sourced from official Siemens documentation. Contact us to confirm the exact firmware version and hardware revision available in current stock.
Key Features & Benefits
- Integrated PROFIBUS-DP Master/Slave: Eliminates the need for a separate CP module, reducing rack space and system cost while enabling direct connection to distributed I/O (ET 200 series), drives (SINAMICS, MICROMASTER), and third-party DP devices.
- High Processing Performance: Handles complex ladder logic, function block diagrams, and structured text programs with fast cycle times suitable for motion-critical and process-critical applications.
- MPI Network Connectivity: Supports multi-point interface for programming, HMI connection (SIMATIC HMI panels), and peer-to-peer CPU communication without additional hardware.
- Broad S7-300 Ecosystem Compatibility: Fully compatible with the extensive S7-300 signal module library (SM 321/322/323/331/332/334/338), function modules (FM), and communication processors (CP).
- Proven Industrial Reliability: Designed to IEC 61131-2 standards with EMC immunity ratings suitable for harsh industrial environments including panel-mount and field-cabinet installations.
- Long-Term Availability: Konmask.com maintains sourcing channels for legacy and current-production S7-300 CPUs, supporting both new installations and long-term maintenance contracts.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white welding lines, paint shop conveyors, engine assembly test benches
- Chemical & Petrochemical: Batch reactor control, pipeline monitoring, safety instrumented systems (SIS) integration
- Food & Beverage: Filling and packaging lines, CIP (clean-in-place) automation, cold-chain conveyor control
- Power Generation & Utilities: Substation automation, turbine control auxiliaries, water treatment plant SCADA integration
- Pharmaceutical: GMP-compliant process control, validated batch management systems
- Material Handling & Logistics: Automated storage and retrieval systems (AS/RS), sortation conveyors, palletizing cells
- Machine Tool & OEM: CNC auxiliary control, press line sequencing, injection molding machine integration
System Integration & Compatible Parts
The 6ES7318-3FL00-0AB0 operates within the standard S7-300 hardware architecture. Typical system components used alongside this CPU include:
- Power Supplies: 6ES7307-1BA01-0AA0 (PS 307, 2 A), 6ES7307-1EA01-0AA0 (PS 307, 5 A), 6ES7307-1KA02-0AA0 (PS 307, 10 A)
- Digital Input Modules: 6ES7321-1BH02-0AA0 (SM 321, 16 DI × 24 VDC)
- Digital Output Modules: 6ES7322-1BH01-0AA0 (SM 322, 16 DO × 24 VDC/0.5 A)
- Analog Input Modules: 6ES7331-7KF02-0AB0 (SM 331, 8 AI)
- Analog Output Modules: 6ES7332-5HF00-0AB0 (SM 332, 8 AO)
- PROFIBUS-DP Slaves: ET 200M (6ES7153-series), ET 200S (6ES7151-series)
- HMI Panels: SIMATIC TP700, TP900, KTP series (MPI/PROFIBUS connection)
- Memory Cards: 6ES7953-8LF31-0AA0 (MMC, 4 MB)
Contact our technical team if you need a complete BOM review or compatibility confirmation for your existing rack configuration.
Our Quality Assurance Process
- Source Verification: All units are procured exclusively from authorized distributors, certified resellers, or directly from Siemens-approved supply chains. Grey-market and unverified sources are categorically excluded.
- Physical Inspection: Each module undergoes visual inspection for label authenticity, housing integrity, connector condition, and firmware label consistency before dispatch.
- Functional Pre-check: Where test infrastructure permits, modules are powered and communication ports are verified prior to packaging.
- Secure Packaging: Anti-static ESD bags, foam-lined boxes, and moisture-barrier packaging are used for all CPU modules to prevent transit damage.
How to Order
- Submit your inquiry via the Contact / Quote Request form on this page, or email support@konmask.com directly.
- Include your required quantity, delivery timeline, and destination country so we can confirm stock availability and prepare a freight quote.
- Our team responds within 1 business day (Mon–Fri, UTC+8).
- Upon agreement, we issue a proforma invoice. Payment terms and shipping options (DHL Express, FedEx, sea freight) are confirmed at this stage.
- Tracking information is provided upon dispatch. Average lead time: 3–7 business days for in-stock items.
Why Choose Konmask.com?
- ✅ Verified Supply Chain: We source only from traceable, documented channels — no counterfeit risk.
- ✅ Global Shipping: Export experience to 60+ countries; full customs documentation (commercial invoice, packing list, COO) provided.
- ✅ Technical Support: Our team includes qualified automation engineers who can assist with compatibility questions, firmware guidance, and system integration advice.
- ✅ Competitive Lead Times: Extensive supplier network enables fast sourcing even for discontinued or hard-to-find part numbers.
- ✅ B2B Focus: We serve OEMs, system integrators, MRO procurement teams, and plant maintenance departments — not retail consumers.
Frequently Asked Questions
- Q: Is the 6ES7318-3FL00-0AB0 still in production?
- A: Siemens has transitioned the S7-300 platform toward end-of-life, but the 6ES7318-3FL00-0AB0 remains available as new-old-stock (NOS) and refurbished units through authorized channels. Contact us for current availability.
- Q: Can this CPU be programmed with TIA Portal?
- A: The S7-300 series is natively programmed with STEP 7 (SIMATIC Manager V5.x). TIA Portal supports S7-300 CPUs via a compatibility mode. Confirm your software version with our team before ordering.
- Q: Do you provide a warranty?
- A: Yes. All modules supplied by Konmask.com carry a minimum 90-day warranty against manufacturing defects. Extended warranty options are available — please inquire.
- Q: Can you supply multiple units for a plant-wide upgrade?
- A: Absolutely. We handle both single-unit MRO orders and bulk procurement for system integrators and EPC contractors. Volume pricing is available upon request.
- Q: What documentation do you provide with the shipment?
- A: Standard shipment documentation includes commercial invoice, packing list, and certificate of origin. Test reports and third-party inspection certificates can be arranged for large orders.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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