Siemens 6ES7317-6FF04-0AB0 CPU Module

Siemens SIMATIC S7-300 CPU 317F-2DP (6ES7317-6FF04-0AB0) Overview

The Siemens SIMATIC S7-300 CPU 317F-2DP with the order number 6ES7317-6FF04-0AB0 is a high-performance, fail-safe central processing unit designed for the SIMATIC S7-300 modular controller system. It is specifically engineered to handle both standard and safety-related automation tasks simultaneously within a single controller, making it suitable for applications requiring high levels of safety integrity.

Product Detailed Description

• Core Functionality: The CPU 317F-2DP is the brain of the S7-300 safety system. It executes user programs for both standard automation and safety applications. Its fail-safe capabilities are based on a diverse, redundant internal architecture and comprehensive self-testing mechanisms, ensuring safe operation even in the event of internal failures.

• Integrated Safety: It provides certified safety functions up to Safety Integrity Level 3 (SIL 3) according to IEC 61508 and Performance Level e (PL e) according to ISO 13849-1. This allows it to control safety-critical processes and machinery, ensuring personnel and plant safety. It requires the software package S7 Distributed Safety V5.2 SP1 or higher for safety programming.

• Memory: It comes with 1.5 MB of work memory, providing ample space for complex programs and data. A Micro Memory Card (MMC) is required for operation, which stores the program and configuration.

• Communication Interfaces:

• 1st Interface (MPI/DP): An integrated Multi-Point Interface (MPI) that also supports PROFIBUS DP (Decentralized Periphery) at 12 Mbit/s. This allows communication with other CPUs, HMI devices, programming devices, and distributed I/O systems.

• 2nd Interface (DP Master/Slave): A second PROFIBUS DP interface that can be configured as either a master or a slave. This provides flexibility for connecting to additional distributed I/O or integrating into a larger PROFIBUS network.

• System Integration: The CPU 317F-2DP is part of the SIMATIC S7-300 family, allowing seamless integration with various S7-300 modules (digital and analog I/O, communication processors, technology modules) and the broader Siemens TIA (Totally Integrated Automation) Portal engineering environment.

Product Parameters

(Note: As this product is in a phase-out status, some features might be superseded by newer generations or specific detailed documentation might require access to older Siemens resources.)

• Product Type: Central Processing Unit (CPU)

• Series: SIMATIC S7-300

• Model: CPU 317F-2DP (Fail-safe)

• Order Number: 6ES7317-6FF04-0AB0

• Work Memory: 1.5 MB (integrated RAM)

• Load Memory: Requires Micro Memory Card (MMC)

• Interfaces:

• Interface 1: MPI / PROFIBUS DP (12 Mbit/s), configurable as Master or Slave

• Interface 2: PROFIBUS DP (12 Mbit/s), configurable as Master or Slave

• Programming Software: STEP 7 (specifically for safety, S7 Distributed Safety V5.2 SP1 or higher)

• Safety Standard Compliance:

• IEC 61508 up to SIL 3

• ISO 13849-1 up to PL e

• Cat. 4 (according to EN 954-1, often superseded by ISO 13849-1)

• Cycle Time: Varies significantly with program size and complexity.

• Supply Voltage: 24 V DC (via backplane bus from a PS 300 power supply module)

• Ambient Temperature: Typically 0 °C to +60 °C (operating, horizontal mounting); reductions for vertical mounting.

• Dimensions (W x H x D): Standard S7-300 CPU module dimensions.

• Weight: Approx. 0.3 kg.

• Status: PM400 (Announcement of product phase-out)

Product Advantages

• Integrated Safety and Standard Automation: Performs both standard and safety-related control tasks in a single controller, simplifying architecture and reducing hardware costs compared to separate systems.

• High Safety Integrity: Certified to achieve SIL 3 and PL e, ensuring the highest level of safety for demanding applications.

• Robust and Reliable: Designed for industrial environments, ensuring reliable operation under various conditions.

• Flexible Communication: Two PROFIBUS DP interfaces allow for versatile network configurations, connecting to a wide range of distributed I/O and other devices.

• Ample Memory: 1.5 MB work memory supports complex control programs and data handling.

• Proven Technology: Part of the widely adopted SIMATIC S7-300 family, benefiting from extensive documentation, support, and a large user base (though the S7-300 series itself is a mature product line).

• Simplified Engineering (with TIA Portal/STEP 7): Integrated engineering with a common software environment for both standard and safety functions.

Precautions

• Phase-Out Status (PM400): Be aware that this product is in a phase-out status. While still available for replacement or spare parts, for new designs or projects, it is highly recommended to consider newer generations of Siemens safety CPUs (e.g., from the SIMATIC S7-1500F series) which offer enhanced performance, features, and long-term availability.

• Micro Memory Card (MMC): An MMC is absolutely required for operation. Ensure the correct type and size of MMC is used.

• Software Compatibility: Requires specific software versions (S7 Distributed Safety V5.2 SP1 or higher) for programming and configuration of safety functions. Ensure your engineering software is compatible.

• Safety Guidelines: Strict adherence to safety programming guidelines and standards (IEC 61508, ISO 13849-1) is crucial when implementing safety functions. Proper validation and verification of the safety application are mandatory.

• Power Supply: Ensure a stable and correctly sized 24 V DC power supply is provided via the S7-300 backplane bus.

• Environmental Conditions: Install the CPU within its specified operating temperature and humidity ranges. Ensure adequate ventilation within the control cabinet.

• Grounding and Shielding: Proper grounding and shielding of communication cables (PROFIBUS DP) are essential to prevent electromagnetic interference and ensure reliable communication.

• System Knowledge: Operation and maintenance require personnel with adequate knowledge of SIMATIC S7-300 systems, PROFIBUS DP, and functional safety principles.

Product Applications

The Siemens SIMATIC S7-300 CPU 317F-2DP is used in a wide array of industrial automation applications where both standard control and integrated safety functionality are required.

• Machine Safety:

• Emergency stop circuits and safety door monitoring on machinery.

• Light curtain integration for access control in hazardous areas.

• Two-hand control devices.

• Safe speed monitoring for drives.

• Process Industry:

• Safety interlocks in chemical plants, oil & gas facilities, and power generation.

• Burner management systems where safe shutdown is critical.

• Emergency shutdown (ESD) systems for localized processes.

• Material Handling:

• Safety functions on conveyors, automated guided vehicles (AGVs), and robotic cells to prevent collisions or entrapment.

• Automotive Industry:

• Safety-related control in assembly lines and robotics applications.

• Packaging Machines:

• Monitoring of safety guards and safe operating modes.

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