SIMATIC S7-300 CPU315F-2 PNDP, Central processing unit with 512 KB work memory

The SIMATIC S7-300 CPU315F-2 PNDP is a robust central processing unit designed for advanced industrial automation applications. Featuring a 512 KB work memory, it ensures seamless data processing and reliable performance. Operating efficiently at a rated voltage of 24V DC with an input current of 750 mA, this unit delivers a power rating of 4.65 W. Built for versatility, it supports a broad frequency range of 50/60 Hz and operates within temperatures from -20C to 60C, making it suitable for diverse environments. Its compact dimensions of 40 x 125 x 130 mm and lightweight construction (340 g) facilitate easy installation on standard DIN-rails. Its protected by an IP20-rated enclosure and can withstand up to 95% humidity, ensuring durability in challenging conditions. The sleek black design complements its functional reliability and durability in industrial settings, optimizing processes with precision.

General Information

• Product Type: CPU 315F-2 PN/DP

• HW Status: 01

• Firmware: V3.2

• Isochronous Mode: Yes (via PROFIBUS DP or PROFINET)

• Engineering Software: STEP 7 V5.5 or higher, Distributed Safety V5.4 SP4

Supply Voltage

• Rated Voltage: 24 V DC

• Range: 20.4 V 28.8 V

• Recommended Protection: 2 A

• Stored Energy Time: 5 ms

• Repeat Rate: 1 s

Current Consumption

• Rated Consumption: 750 mA

• No-load: 150 mA

• Inrush Current: 4 A

• Power Loss: 4.65 W

Memory

Work Memory

• Integrated: 512 KB

• Expandable: No

Load Memory (MMC)

• MMC Required: Yes

• Max MMC size: 8 MB

• Data Retention: 10 years

• Backup: Via MMC (no battery needed)

CPU Processing Times

• Bit operations: 0.05 s

• Word operations: 0.09 s

• Fixed-point: 0.12 s

• Floating-point: 0.45 s

Blocks

• Total blocks: 1024 (DB, FC, FB)

• Max DB/FC/FB size: 64 KB

• OBs supported: OB1, OB10, OB20/21, OB32-35, OB40, OB55-57, OB61, OB80-87, OB100, OB121-122

Timers & Counters

• S7 Counters: 256

• IEC Counters: Unlimited

• S7 Timers: 256

• IEC Timers: Unlimited

• Retentive Area: Max 128 KB

Address Areas

• Inputs: 2048 bytes

• Outputs: 2048 bytes

• Process Image (I/O): 2048 bytes each

• Digital Channels: 16,384 IN / 16,384 OUT

• Analog Channels: 1024 IN / 1024 OUT

Hardware Configuration

• Expansion units: 3

• DP Masters: 1 integrated, up to 4 via CP

• Racks: 4 max, 8 modules per rack

Clock

• Real-time clock: Yes

• Backup time: 6 weeks

• Max deviation: 10 s/day

Interfaces

1. RS485 (MPI/DP)

• Baud rate: up to 12 Mbit/s

• MPI, PROFIBUS DP Master/Slave supported

2. PROFINET

• Ports: 2 (RJ45)

• 10/100 Mbit/s, Autonegotiation, Autocrossing

• PROFINET IO Controller/Device

• Web server (read-only)

• Open IE Communication (TCP/IP, UDP, ISO-on-TCP)

Communication

• Total connections: 16

• PG/OP: 15

• S7 Basic Communication: 14

• S7 Communication: 14

• Routing supported

Diagnostics & Commissioning

• Diagnostic buffer: 500 entries

• Forcing: Yes

• Single step: Yes

• Breakpoints: 4

Programming Languages

• LAD, FBD, STL, SCL, CFC, GRAPH, HiGraph

Protection

• Password protection

• Block encryption (S7 Block Privacy)

Mechanical Data

• Width: 40 mm

• Height: 125 mm

• Depth: 130 mm

• Weight: 340 g

Technical Details 

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