6ES7317-2AK14-0AB0 Siemens S7-300 CPU

Product Overview

• Spare part CPU 317-2 DP for SIMATIC S7-300.
• 1 MB work memory, high processing speed.
• Two PROFIBUS DP interfaces (MPI/DP master/slave).
• Requires Micro Memory Card (MMC) for load memory.
• Firmware V3.3, HW status 01.

Key Features

• Very fast processing: bit ops 0.025 µs.
• Large work memory: 1 MB integrated.
• Supports up to 8 Mbyte MMC.
• Data retentive without battery (MMC).
• Wide ambient temperature 0…60 °C.
• Compact size: 40 x 125 x 130 mm, 360 g.

Technical Specifications (Tree View)

• Supply & Power
  • Rated voltage: 24 V DC (19.2…28.8 V)
  • Current consumption: 870 mA (rated)
  • Inrush current: 4 A typ.
  • Power loss: 4.5 W typ.
• Memory
  • Work memory: 1 MB (not expandable)
  • Load memory: MMC, max. 8 MB
  • Data retention on MMC: min. 10 years
• Performance
  • Bit op: 0.025 µs
  • Word op: 0.030 µs
  • Fixed point: 0.040 µs
  • Floating point: 0.160 µs
• Interfaces
  • Interface 1: MPI/DP (RS485, 12 Mbps)
  • Interface 2: DP master/slave (RS485, 12 Mbps)
  • Both isolated, max. 200 mA output
• Address Areas & I/O
  • Inputs: 8192 bytes (distributed same)
  • Outputs: 8192 bytes
  • Digital channels: 65536 (central 1024)
  • Analog channels: 4096 (central 256)
• Blocks & Nesting
  • Total blocks: 2048 (DB, FC, FB)
  • DB max: 2048, size 64 KB
  • Nesting depth: 16 per priority class
• Timers & Counters
  • S7 counters: 512 (retentive adjustable)
  • S7 timers: 512 (range 10 ms…9990 s)
  • IEC counters/timers: unlimited (SFB)
• Communication
  • PG/OP, S7 basic, S7 communication
  • Global data: max. 8 loops
  • Routing, SYNC/FREEZE, DPV1
  • Connections total: 32

Applications & Compatible Systems

• Medium to large automation tasks.
• Industrial manufacturing, process control.
• Works with S7-300 racks (max. 4 racks, 8 modules each).
• Supports up to 3 expansion units.
• Compatible with FM, CP modules (PtP, LAN).

Compare with Similar Models

• 6ES7317-2AJ10-0AB0 (older version, less memory)
• 6ES7315-2EH14-0AB0 (lower performance, fewer I/O)
• 6ES7318-3EL01-0AB0 (higher-end CPU 318)
• 6ES7317-2EK14-0AB0 (similar but with PROFINET)

Expert Review

“The 6ES7317-2AK14-0AB0 is a reliable workhorse for S7-300 systems. Its fast processing and dual DP interfaces make it ideal for complex automation. As a spare part, it ensures continuity for legacy plants.”

Manager’s Insight

“For plant managers, this CPU offers excellent value. The 1 MB memory handles large programs, and the MMC backup guarantees data safety. With 12-month warranty and quick dispatch, it’s a smart choice for critical applications.”

Frequently Asked Questions (FAQ)

• Is this CPU a new or spare part?

  It is a spare part (marked ***spare part***) – ideal for replacements.

• What memory card is required?

  You need a Micro Memory Card (MMC) of up to 8 MB for load memory.

• What is the warranty period?

  We provide 12 months warranty against defects.

• How fast is delivery?

  We dispatch within 12-24 hours via FedEx, UPS, or DHL.

• Can I use this as a DP slave?

  Yes, both interfaces can be DP slaves (but not simultaneously).

Selection Guide

• Choose this CPU if you need high speed and large memory.
• For new projects, consider newer S7-1500 or 317 with PN.
• Check your MMC size requirements – up to 8 MB supported.
• Verify firmware compatibility with your STEP 7 version.

Contact Information

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825

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