Siemens 6ES7517-3HP00-0AB0 RM27900/unit
The Siemens 6ES7517-3HP00-0AB0 is a high-performance CPU 1517H-3 PN from the SIMATIC S7-1500H series, specifically designed for industrial applications that require maximum system availability and fault tolerance. Featuring a redundant controller architecture with H-SYNC interfaces, this CPU ensures continuous operation even during hardware failures. It provides 2 MB program memory, 8 MB data memory, multiple PROFINET communication interfaces, and seamless integration with TIA Portal engineering software. The controller is ideal for process industries, power generation, water treatment, oil & gas, and other critical automation environments where downtime is unacceptable.
Key Specific Features
- High-Availability (H-System) CPU designed for redundant automation systems.
- SIMATIC S7-1500H Series controller for mission-critical applications.
- Article Number: 6ES7517-3HP00-0AB0.
- Program Memory: 2 MB integrated work memory.
- Data Memory: 8 MB integrated work memory.
- Load Memory: Expandable via SIMATIC Memory Card (required).
- Communication Interface 1: PROFINET RT with integrated 2-port switch.
- Communication Interface 2: Dedicated PROFINET interface.
- Communication Interfaces 3 & 4: H-SYNC interfaces for CPU redundancy synchronization.
- Supply Voltage: 24 VDC (19.2–28.8 VDC operating range).
- Current Consumption: Approximately 1.5 A nominal.
- Power Loss: Typical 24 W.
- Display: Integrated front display with 6 control keys.
- Firmware Support: Compatible with TIA Portal V19 and later (FW V3.1).
- Integrated Diagnostic Functions including SysLog and advanced system diagnostics.
- I&M Data Support: I&M0 to I&M3 identification and maintenance functions.
- Reverse Polarity Protection for enhanced system reliability.
- Hot Standby Redundancy Capability minimizes production interruptions


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