Siemens SIMATIC S7-300 CPU 315F-2 DP Fail-Safe PLC – 6ES7315-6FF04-0AB0

The Siemens SIMATIC S7-300 CPU 315F-2 DP (6ES7315-6FF04-0AB0) is a fail-safe programmable logic controller designed for industrial automation systems that require both standard control and safety-related functions. It combines a standard PLC CPU with integrated safety functionality, making it suitable for compatible safety applications in manufacturing and process automation.

Featuring 384 KB of work memory, an integrated MPI interface, and a second PROFIBUS DP interface that can operate as a master or slave, this CPU supports distributed automation architectures. When engineered with compatible Siemens safety software and safety-related I/O, it can be used to implement appropriate safety functions within a SIMATIC S7-300 system.

Technical Specifications

• Brand: Siemens

• Product Family: SIMATIC S7-300

• Product Type: CPU 315F-2 DP Fail-Safe CPU

• Part Number: 6ES7315-6FF04-0AB0

• Work Memory: 384 KB

• Power Supply: Integrated 24 V DC

• Communication Interfaces: MPI and PROFIBUS DP

• Second Interface: PROFIBUS DP master/slave

• Rated Supply Voltage: 24 V DC

• Permissible Supply Voltage: 19.2–28.8 V DC

• Rated Current Consumption: 850 mA

• Typical No-Load Current: 150 mA

• Typical Power Loss: 4.5 W

• Firmware Version: V3.3

• Hardware Functional Status: 01

• Width: 40 mm

• Dimensions: Approximately 40 × 125 × 130 mm

• Memory Card: Siemens Micro Memory Card (MMC) required

• Programming Software: STEP 7 V5.5 SP1 or later, or compatible STEP 7 version with HSP 218 and Distributed Safety

• Product Lifecycle: Spare part; phase-out announced

Key Features

• Fail-safe CPU for compatible safety-related automation systems.

• 384 KB work memory for control and safety programs.

• Integrated MPI communication interface.

• PROFIBUS DP interface supporting master/slave operation.

• Integrated 24 V DC power supply.

• Supports distributed automation architectures.

• Designed for use with compatible Siemens safety engineering tools and safety I/O.

Typical Applications

• Safety-related industrial machine control

• Manufacturing and assembly lines

• Conveyor and material-handling systems

• Distributed automation using PROFIBUS DP

• Industrial systems requiring standard and safety logic

• Maintenance and replacement of existing SIMATIC S7-300 safety systems

Compatibility and Installation

Verify the existing CPU model, safety program, engineering software version, PROFIBUS DP configuration, safety I/O modules, and required Micro Memory Card before ordering. Safety functions must be engineered, validated, and maintained according to the applicable safety standards and Siemens documentation.

Availability Notice

Siemens identifies this product as a spare part and lists its phase-out as effective from October 1, 2023. Confirm current stock, condition, warranty, and compatibility with the supplier before purchasing.