Siemens Simatic S7-1500 PLC CPU, 16DI/16DO, 5AI/2AO Part number 6ES7511-1CK01-0AB0

Product Overview

The Siemens 6ES7511-1CK01-0AB0 is a CPU in the SIMATIC S7-1500 Compact family (CPU 1511C-1 PN) designed for high-performance automation in compact systems. With integrated I/O, PROFINET IRT interface and powerful processing capabilities, it is engineered for fast, flexible control in machine and system applications.

Key Features

• Compact CPU with integrated digital and analog I/O (16 DI, 16 DO, 5 AI, 2 AO)
• Working memory: 175 kB for program data
• Data memory: 1 MB for user variables and parameters
• Integrated PROFINET IRT interface with 2-port switch for real-time communication
• High-speed counters and high-speed PWM / frequency outputs (4 high-speed outputs) for motion and positioning tasks
• Compact, space-saving design for control cabinet integration
• Front connector (push-in) simplifies wiring and maintenance

Technical Specifications

• Product Series: SIMATIC S7-1500 Compact CPU (CPU 1511C-1 PN)
• Article Number: 6ES7511-1CK01-0AB0
• Program Memory (Max): 175 kB
• Data Memory (Max): 1 MB
• Digital Inputs (DI): 16
• Digital Outputs (DO): 16
• Analog Inputs (AI): 5
• Analog Outputs (AO): 2
• High-Speed Counters: 6
• High-Speed Outputs (PTO/PWM/Frequency): 4
• Interface: PROFINET IRT with integrated 2-port switch
• Net Weight: Approx. 1.229 kg

Compliance & Certifications

• Manufactured to Siemens industrial automation quality and reliability standards
• Complies with RoHS directive (Restriction of Hazardous Substances) since March 2018
• WEEE (2012/19/EU) take-back obligation applies

Applications

Ideal for compact automation systems in machine building, packaging, material handling, and factory automation where integrated processing, I/O and real-time communication are required. It supports tasks such as motion control, process automation, and real-time networking with minimal footprint.