The 6ES7317-2AK14-0AB0 is a high-performance CPU module from Siemens’ SIMATIC S7-300 series, specifically the CPU 317-2 PN/DP model. It is designed for large-scale and complex industrial automation applications requiring exceptional processing power, extensive expandability, and advanced dual-protocol communication capabilities to handle demanding control and network integration tasks.
Key Features:
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Core Processing Power:
- Equipped with a high-performance 32-bit processor optimized for real-time control of complex systems, delivering ultra-fast instruction execution (as low as 0.05 µs for basic operations). This enables it to handle large control programs, intensive data processing, and coordination of distributed devices with minimal latency.
- Includes 1 MB of work memory (RAM) for program execution and dynamic data handling—providing ample capacity for sophisticated automation logic, large data blocks, and simultaneous processing of multiple tasks. It supports external load memory via SIMATIC Micro Memory Cards (MMC, up to 8 MB) for secure storage of programs, configurations, and user data.
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Communication Interfaces:
- PROFINET IO interface (10/100 Mbps, RJ45) supporting high-speed Ethernet-based communication, including PROFINET RT (Real-Time) and IRT (Isochronous Real-Time) for time-critical applications. This enables seamless integration with PROFINET devices such as distributed I/O modules, HMIs, robots, drives, and other controllers in large-scale networks.
- PROFIBUS DP interface (up to 12 Mbps) in master mode, ensuring compatibility with legacy PROFIBUS networks. It can connect to a wide range of field devices, distributed I/O systems, and drives, facilitating flexible integration in mixed-protocol industrial environments.
- MPI interface (187.5 kbps) for programming, HMI communication, and data exchange with other S7-300/400 CPUs, simplifying network configuration, diagnostics, and cross-device coordination.
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Expandability & Scalability:
- Designed for extensive I/O expansion via S7-300 I/O modules (digital, analog, specialty modules) connected to the S7-300 rack. This allows customization to support hundreds of I/O points, making it suitable for large machines, multi-stage production lines, or complex process control systems.
- Supports connection to multiple distributed I/O stations (via PROFINET or PROFIBUS DP), enabling decentralized automation architectures while maintaining centralized control.
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Functional Capabilities:
- Complies with IEC 61131-3 programming standards, supporting languages such as LAD (Ladder Diagram), FBD (Function Block Diagram), STL (Statement List), and SCL (Structured Control Language) for developing modular, reusable, and complex control logic.
- Integrated advanced diagnostic functions with status LEDs (RUN, STOP, ERROR, PN, DP) for real-time visual monitoring of system health, communication status, and fault detection—reducing downtime and simplifying troubleshooting.
- Configurable and programmable via Siemens’ TIA Portal (STEP 7) software, streamlining engineering workflows from design to commissioning and maintenance.
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Mechanical & Environmental Design:
- Compact, DIN rail-mountable housing designed for seamless integration into S7-300 rack systems, optimizing space in control cabinets even for large-scale installations.
- Built to withstand harsh industrial environments, operating reliably in a temperature range of 0°C to 60°C (with appropriate cooling) and complying with standards such as CE, UL, and IEC 61131-2 for resistance to vibration, shock, and electromagnetic interference (EMC).
Applications:
Ideal for large-scale and complex automation systems in industries such as automotive manufacturing, heavy machinery, process control (chemicals, pharmaceuticals), and logistics. It excels in scenarios requiring high-performance processing of intricate control logic (e.g., multi-axis synchronization, complex process regulation), coordination of distributed subsystems, and seamless integration into both modern PROFINET networks and legacy PROFIBUS infrastructure.
This CPU combines exceptional processing power, extensive expandability, and dual-protocol communication, making it a robust solution for the most demanding industrial automation tasks requiring reliability, scalability, and advanced network integration.
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