| Parameter | Description |
| Model Number | 6ES7517-3AP00-0AB0 |
| Product Type | SIMATIC S7-1500 CPU Module – CPU 1517-3 PN/DP (Standard, High-Performance) |
| Power Supply | 24 V DC |
| Dimensions (W × H × D) | 175 mm × 149 mm × 129 mm |
| Weight | Approx. 1929 g |
| Technology Functions | - High-speed counting (up to 200 kHz)<br> - Pulse-width modulation (PWM)<br> - PID control (standard)<br> - Motion control (up to 20 axes)<br> - Integrated web server, SNMP, alarm handling<br> - System redundancy support<br> - Real-time diagnostics and trace functions<br> - 3 PROFINET ports (2 with switch, 1 for I/O controller) |
| Expansion Capability | Up to 32 modules (signal, communication, and technology) on the local I/O rack |
| Installation | DIN rail mounting (35 mm top-hat rail, per IEC 60715); uses S7-1500 backplane bus; requires front connector (e.g., 6ES7971-0BB00-0XA0); IP20 protection (for use in control cabinets) |
The Siemens 6ES7517-3AP00-0AB0 (CPU 1517-3 PN/DP) is a high-performance standard CPU within the SIMATIC S7-1500 automation system, designed for medium to large-scale industrial applications that require fast processing, extensive communication capabilities, and advanced control functions—without integrated fail-safe logic.
With 2 MB of program and data memory and execution times as fast as 1 nanosecond per bit operation, this CPU is ideal for handling complex automation tasks such as high-speed packaging lines, robotic cells, process control systems, and assembly machinery. It supports advanced technologies including motion control for up to 20 axes, PID control, and high-speed counting, making it suitable for precision applications in manufacturing, printing, and material handling.
| Question | Answer |
| 1. What is the difference between 6ES7517-3AP00-0AB0 and 6ES7517-3FP00-0AB0? | The 6ES7517-3AP00-0AB0 is a standard CPU for high-performance automation, while the 6ES7517-3FP00-0AB0 is its fail-safe (F-CPU) version, certified for SIL 3 / PL e safety applications. Both have similar performance, but only the "F" version supports integrated safety logic using STEP 7 Safety Advanced. |
| 2. How many PROFINET ports does this CPU have? | It has three integrated PROFINET ports: two support device switching (for line topology), and one is dedicated for use as an I/O controller port. This enables flexible network configurations such as lines, stars, or rings. |
| 3. Can this CPU be used in redundant systems? | Yes. The CPU 1517-3 PN/DP supports system redundancy when used with a second identical CPU and a Y-link or network switch, making it suitable for applications requiring high availability and continuous operation. |
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