| 4.5 W | |
| Load Memory | Micro Memory Card (MMC) required |
| Maximum MMC Capacity | 8 MB |
| First Communication Interface | MPI / PROFIBUS DP, up to 12 Mbit/s |
| Second Communication Interface | PROFIBUS DP, master/slave |
| Physical Interfaces | 2 × RS485 |
| Maximum Digital I/O Address Area | 8,192 bytes each for inputs and outputs, subject to system configuration |
| Typical Bit Processing Time | 0.025 µs |
| Typical Word Processing Time | 0.03 µs |
| Typical Fixed-Point Arithmetic Time | 0.04 µs |
| Typical Floating-Point Arithmetic Time | 0.16 µs |
| Programming Software | STEP 7 V5.5 SP1 or later; supported earlier versions may require the relevant hardware support package |
| Programming Languages | LAD, FBD, STL, SCL and other languages supported by the selected engineering environment |
| Dimensions (W × H × D) | Approximately 40 × 125 × 130 mm |
| Net Weight | Approximately 401 g |
| Operating Temperature | 0°C to +60°C |
| Product Lifecycle | Phase-out announced; verify current spare-part availability |
1 MB work memory: Supports larger PLC programs and data processing for compatible automation tasks.
Dual communication interfaces: Provides MPI/PROFIBUS DP and a second PROFIBUS DP interface.
PROFIBUS DP master/slave capability: Supports integration with compatible distributed I/O and industrial network architectures.
Integrated 24 V DC power supply: Designed for compatible SIMATIC S7-300 system configurations.
Micro Memory Card support: Stores the PLC program and load memory using a compatible Siemens MMC.
Advanced processing performance: Supports fast logic, arithmetic, and control operations.
Modular S7-300 architecture: Integrates into compatible Siemens automation systems.
Factory and production-line automation
Industrial machine control
PROFIBUS DP distributed I/O networks
Process monitoring and control
Packaging and manufacturing systems
Industrial equipment maintenance
Refurbishment of existing Siemens S7-300 installations
Before ordering, confirm the exact part number, rack configuration, connected I/O modules, PROFIBUS network topology, Micro Memory Card, and STEP 7 project compatibility. CPU replacement may require transferring the existing program, checking hardware configuration, and recommissioning the system.
Communication note: The 6ES7317-2AK14-0AB0 is the CPU 317-2 DP model. It has MPI/PROFIBUS DP and a second PROFIBUS DP interface; it does not have an integrated PROFINET Ethernet interface. If your system requires PROFINET, verify the required CPU model before purchasing.
Availability notice: Siemens lists this model under its product phase-out announcement, effective October 1, 2023. Remaining stock and specialist spare-part availability may vary. Confirm whether the unit is new, refurbished, or used, along with warranty and authenticity, before ordering.
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