6ES7317-2EK14-0AB0 Siemens SIMATIC S7-300 CPU317-2 PN/DP Central Processing Unit

6ES7317-2EK14-0AB0 Siemens SIMATIC S7-300 CPU317-2 PN/DP Central Processing Unit

1.Overview of the 6ES7317-2EK14-0AB0 Siemens

The Siemens 6ES7317-2EK14-0AB0 is a high-performance central processing unit (CPU) in the Siemens SIMATIC S7-300 series, specifically the CPU 317-2 PN/DP. It features 1MB of work memory, integrated MPI/PROFIBUS DP interfaces, and a PROFINET dual-port switch, making it suitable for mid- to high-end applications handling complex automation tasks.

The 317-2 PN/DP, a mid- to high-end CPU in the SIMATIC S7-300 family, integrates classic PROFIBUS and PROFINET. With 1MB of work memory and a bitwise operation speed of 0.1μs, it is suitable for small- to medium-sized automation projects with fewer than 2,000 points, multiple network segments, and requirements for real-time communication and motion control.

Excellent processing performance: The processor processes each binary instruction in approximately 25ns and floating-point instructions in approximately 160ns, demonstrating exceptional speed when processing word, double-word, and 32-bit fixed-point instructions.

Powerful Communication Capabilities: Integrated MPI/PROFIBUS DP combined interface and PROFINET interface (with dual-port switch) support multiple communication protocols, including S7 communication, TCP/IP, ISO-on-TCP, and UDP, making it easy to build complex network architectures.

Flexible Scalability: Up to 32 modules (four-row configuration) can be expanded to accommodate centralized or distributed I/O configurations, meeting different scale and process requirements.

Advanced Functions and Diagnostics: Supports programming in high-level languages ​​such as SCL and S7-GRAPH, enabling simple motion control and PID control tasks. A built-in diagnostic buffer stores up to 500 error and interrupt events for rapid troubleshooting.

Reliable Data Management: A SIMATIC Micro Memory Card (MMC) is used as load memory (up to 8MB) for data archiving and recipe management. A maintenance-free data backup function automatically saves data (up to 256KB) upon power restoration.

2.Core Features:

Model: 6ES7317-2EK14-0AB0
Family: SIMATIC S7-300
Work memory: 1 MB (integrated, not expandable)
Load memory: MMC 4 MB (standard), maximum 8 MB
Bit operation time: 0.025 µs
Word operation time: 0.03 µs
Fixed-point arithmetic: 0.04 µs
Floating-point arithmetic: 0.16 µs
Maximum I/O address area: 8,192 Byte DI / 8,192 Byte DQ
Analog channels: 4,096 AI / 4,096 AQ
Bit memory M: 4,096 Byte
S7 counters: 512
S7 timers: 512
Data blocks: 2,048, maximum 64 KB/block
Interface 1: MPI / PROFIBUS DP, 12 Mbit/s, master/slave selectable
Interface 2: Dual port PROFINET IO controller/device with IRT support
Real-time clock: Hardware RTC, ±2 s/day accuracy, MMC retention
Power supply: 24 V DC (20.4–28.8 V)
Rated current: 750 mA
Power consumption: Typical 4.65 W
Operating temperature: 0°C … +60°C (horizontal installation)
Protection rating: IP20
Dimensions (W × H × D): 12.80 x 15.20 x 5.20 mm
Weight: 0.38 kg
Approvals: CE, UL, cULus, SIL2 (Ordinary Zone)

Power Requirements: Rated supply voltage 24V DC, rated current draw 750mA.

Required Accessories: A SIMATIC Micro Memory Card (MMC) is required for CPU operation.

Programming Environment: STEP 7 V5.5 or higher is required for configuration and programming.

Typical Applications:

Packaging Machine - 16-Axis Servo Synchronized Filling & Sealing
Logistics Crossbelt - 32-Segment PROFINET Distributed I/O
Robotic Welding Line - DP Welder + PN Servo Hybrid Network
Textile High-Speed ​​Winding - 10 kHz Counter + Electronic Cam Traverse
Process Control - 4,096 Analog Closed-Loop Regulation

3.Product details pictures

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