Siemens 6ES7315-2EH14-0AB0 SIMATIC S7-300 CPU 315-2 PN/DP PLC 384KB MPI PROFIBUS DP PROFINET

Basic Specifications

• Brand: Siemens
• Model: 6ES7315-2EH14-0AB0 (CPU 315-2 PN/DP)
• Series: SIMATIC S7-300 (Standard CPU)
• Power Supply: Integrated 24V DC (20.4~28.8V), 750mA rated, ~4.65W loss
• Work Memory: 384KB (~128K instructions); Retentive Memory: 128KB
• Load Memory: Micro Memory Card (MMC, up to 8MB, required)
• Communication:
  • MPI/PROFIBUS DP (master/slave, 12Mbps max)
  • PROFINET IO (2-port switch, real-time Ethernet, RT/IRT)
• Processing Speed: Bit 0.05μs, Word 0.1μs, Fixed-point 0.12μs, Floating-point 0.45μs
• I/O Capacity: Up to 256 modules, max 16384 DI/DO or 1024 AI/AO
• Protection Class: IP20
• Temperature: 0°C ~ +60°C (operation); -25°C ~ +70°C (storage)
• Certification: CE, UL, RoHS, CSA, FM
• Dimensions (W×H×D): 40 × 125 × 130mm; Weight: ~0.34kg
• Mounting: DIN rail; Connector: 1×40-pin front connector (required)
• Product Status: Active (replaces 6ES7315-2AH14-0AB0)

Control & Interface

• Programming: STEP 7 V5.5+ / TIA Portal, ladder/FBD/STL/SCL/GRAPH
• Communication:
  • MPI: Connect up to 125 nodes, 187.5kbps max
  • PROFIBUS DP: Real-time distributed I/O, motion control
  • PROFINET: 2-port switch, IO controller, TCP/IP/ISO-on-TCP/UDP
• Expansion: Up to 4 racks (IM360/361), 31 modules per rack
• Data Logging: MMC for non-volatile storage (≥10yrs data retention)
• Diagnostics: 500-entry buffer, real-time fault tracking

Features & Benefits

• 384KB large memory handles complex programs and data-intensive tasks
• Dual PN/DP + MPI interfaces enable flexible network integration
• 2-port PROFINET switch saves external switch cost and wiring
• High processing speed (0.05μs bit) ensures reliable real-time control
• Modular expansion supports large-scale I/O and system scalability
• Battery-free MMC for maintenance-free data storage
• Enhanced diagnostics simplifies troubleshooting and reduces downtime

Applications

• Automotive assembly lines (body, paint, final assembly)
• Process control (chemical, water treatment, HVAC, energy management)
• Packaging machinery (high-speed, multi-axis control)
• Material handling (warehousing, sorting, conveyor systems)
• OEM equipment and machine building
• Retrofit of legacy S7-300 systems with Ethernet upgrade