SIEMENS 6ES7511-1CK01-0AB0 CPU 1511C-1 PN Compact PLC | Replacement, Equivalent & Selection Guide
The SIEMENS 6ES7511-1CK01-0AB0 is the CPU 1511C-1 PN compact controller from the SIMATIC S7-1500 family. It integrates onboard digital and analog I/O with a high-performance PROFINET interface, making it ideal for mid-range automation tasks that demand both processing power and I/O density in a single compact unit. Konmask.com supplies genuine and compatible units with full traceability.
Technical Specifications
- Part Number / SKU: 6ES7511-1CK01-0AB0
- Product Family: SIMATIC S7-1500 Compact CPU
- CPU Type: CPU 1511C-1 PN
- Work Memory: 175 KB (program) / 1 MB (data)
- Bit Processing Speed: 60 ns
- Integrated Digital I/O: 32 DI / 32 DO (transistor, 0.5 A)
- Integrated Analog I/O: 5 AI / 2 AO
- Communication: 1× PROFINET IRT (2-port switch)
- Motion Control: Up to 6 axes (speed/positioning)
- Display: Integrated front display with operator panel
- Power Supply: 24 V DC
- Weight: approx. 920 g
- Firmware: V2.9 and above
- Mounting: DIN rail (35 mm)
- Protection Rating: IP20
- Operating Temperature: 0 °C to +60 °C
- MLFB / Order Number: 6ES7511-1CK01-0AB0
Compatible Replacement & Equivalent Models
When the 6ES7511-1CK01-0AB0 is unavailable or over budget, the following models are functionally compatible or serve as direct replacements. Always verify firmware version and I/O count before substitution.
- 6ES7511-1AK02-0AB0 (CPU 1511-1 PN) — Same S7-1500 platform, no onboard I/O; requires external I/O modules. Suitable when distributed I/O is preferred.
- 6ES7511-1CK02-0AB0 (CPU 1511C-1 PN, newer firmware) — Direct successor with identical pinout and expanded firmware features. Drop-in replacement.
- 6ES7515-2AM02-0AB0 (CPU 1515-2 PN) — Higher-end option with more memory and dual PROFINET ports; use when scalability is required.
- 6ES7214-1AG40-0XB0 (S7-1200 CPU 1214C) — Downgrade option for smaller applications; reduced performance but lower cost.
- 6ES7317-2EK14-0AB0 (S7-300 CPU 317-2 PN/DP) — Legacy replacement for existing S7-300 installations; requires program migration.
Why Choose the Original Model
- Integrated I/O saves rack space: 32 DI + 32 DO + 5 AI + 2 AO onboard eliminates the need for multiple expansion modules in compact panels.
- PROFINET IRT support: Isochronous Real-Time communication ensures deterministic cycle times for motion and process control.
- TIA Portal native: Full integration with SIMATIC STEP 7 / TIA Portal V15.1+ for seamless programming, diagnostics, and firmware updates.
- Proven reliability: S7-1500 platform MTBF exceeds 300,000 hours under standard industrial conditions.
- Scalable motion control: Up to 6 axes without additional motion controllers reduces BOM cost.
Typical Applications
- Packaging machinery and conveyor systems
- Textile and printing equipment
- HVAC and building automation
- Water treatment and pump control
- Small-to-mid-scale robotic cells
- Machine tool auxiliary control
System Compatibility
- Programming Software: TIA Portal V15.1, V16, V17, V18, V19
- Communication Protocols: PROFINET IO, OPC UA, Modbus TCP, S7 communication
- I/O Expansion: Compatible with all ET 200MP, ET 200SP distributed I/O stations
- HMI: SIMATIC HMI Basic / Comfort / Unified panels via PROFINET
- Power Supply: SIMATIC PM 70W 24V DC (6EP1333-4BA00) recommended
- Memory Card: SIMATIC Memory Card (e.g., 6ES7954-8LF03-0AA0) for program backup
Selection Guide
Use the table below to select the right CPU for your application:
- Need onboard I/O in compact panel? → 6ES7511-1CK01-0AB0 (this model) ✓
- Need more memory (>175 KB program)? → Consider CPU 1513 or CPU 1515 series
- Need dual PROFINET ports? → CPU 1515-2 PN (6ES7515-2AM02-0AB0)
- Budget-constrained small machine? → S7-1200 CPU 1214C (6ES7214-1AG40-0XB0)
- Replacing existing S7-300 system? → Use migration tool in TIA Portal; CPU 317-2 PN/DP is closest legacy match
- Motion control priority? → This CPU supports 6 axes; for >30 axes consider SIMOTION D
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified surplus channels
- Each module inspected for physical integrity, firmware version, and label authenticity
- Batch traceability records maintained for B2B customers
- Warranty: 12 months from shipment date
- Counterfeit-free guarantee — units rejected if authentication fails
How to Order
- Confirm your required quantity and delivery timeline
- Contact us via email or phone with your PO or inquiry
- Receive proforma invoice with lead time confirmation
- Payment via T/T, PayPal, or trade assurance
- Shipment via DHL / FedEx / UPS with tracking number provided
📧 support@konmask.com | 📞 +0086 19859288691
Replacement & Compatibility FAQ
Q: Is 6ES7511-1CK02-0AB0 a direct replacement for 6ES7511-1CK01-0AB0?
A: Yes. The -1CK02- is the successor with updated firmware. Hardware pinout and I/O count are identical; a firmware update in TIA Portal is recommended after swap.
Q: Can I use this CPU with S7-300 I/O modules?
A: No. S7-1500 CPUs use ET 200MP backplane I/O. S7-300 modules are not directly compatible; use ET 200MP adapters or replace with S7-1500 I/O modules.
Q: What memory card is required for program backup?
A: SIMATIC Memory Card with minimum 4 MB capacity (e.g., 6ES7954-8LF03-0AA0). The CPU does not retain programs without a memory card after power loss.
Q: Does this CPU support PROFIBUS DP?
A: No. The 1511C-1 PN supports PROFINET only. For PROFIBUS, add a CM DP communication module (6GK7343-1EX30-0XE0) or select a CPU with integrated DP port.
Q: Is the unit available with warranty?
A: Yes. All units from Konmask.com carry a 12-month warranty. Contact us for extended warranty options.
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Contact: support@konmask.com | +0086 19859288691
