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6ES7315-2AF03-0AB0

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The Siemens 6ES7315-2AF03-0AB0 CPU 315-2 DP executes the SIMATIC S7-300 control program and coordinates MPI and PROFIBUS DP communication.
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Technical specifications for 6ES7315-2AF03-0AB0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7315-2AF03-0AB0
  • Product Family:
    Siemens Simatic S7-300
  • Product Type:
    S7-300 CPU 315-2 DP Central Processing Unit
  • Stock:
    1
  • Rated Supply Voltage:
    24 V DC
  • Permissible Supply Range:
    20.4 to 28.8 V DC
  • Maximum Current Consumption:
    1 A
  • Typical Power Loss:
    8 W
  • Integrated Work Memory:
    64 KB
  • Expandable Flash EPROM:
    Maximum 4 MB
  • Integrated RAM:
    Maximum 96 KB
  • Bit Operation Time:
    0.3 µs typical
  • Word Operation Time:
    1 µs typical
  • Floating-Point Operation Time:
    50 µs typical
  • Data Blocks:
    Maximum 255
  • Function Blocks:
    Maximum 192
  • Counters:
    64
  • Timers:
    128
  • Digital Address Area:
    8192 inputs and 8192 outputs
  • Analog Address Area:
    512 inputs and 512 outputs
  • MPI Nodes:
    Maximum 32
  • MPI Rate:
    187.5 kbit/s
  • PROFIBUS DP Slaves:
    Maximum 64
  • PROFIBUS DP Rate:
    Maximum 12 Mbit/s
  • Configuration Software:
    STEP 7 V5.0
  • Weight:
    1.1552 lbs (0.524 kg)
  • Estimated shipping dimensions:
    13.2x15.1x9.1cm
  • Tariff Code:
    85371091
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Program Execution DP Network Map MPI Services Startup Diagnosis

Features:

  • The CPU executes the S7-300 program and updates rack and distributed process data.
  • Integrated work memory and optional load memory divide active execution from stored program blocks.
  • MPI and PROFIBUS DP serve different engineering, controller, and field-device connections.
The operating system schedules the cyclic program, interrupts, timers, counters, and communication tasks.

Backplane data connects local modules while the DP interface maps remote station data.

CPU LEDs and the diagnostic buffer relate program, supply, and bus conditions to the controller state.

The Siemens 6ES7315-2AF03-0AB0 S7-300 CPU 315-2 DP may remain available for quotation and support beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7315-2AF03-0AB0 S7-300 CPU 315-2 DP Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Turning stored blocks into a cyclic control program

  • Load memory: The memory card retains the complete program and configuration.
  • Work memory: Active program and data blocks occupy the integrated execution space.
  • Cycle path: Inputs are read, logic is executed, and output data is updated in sequence.
  • Interrupts: Configured organization blocks handle timed, process, and diagnostic events.

Coordinating remote devices from the second interface

  • Master role: The CPU polls as many as 64 configured PROFIBUS DP slaves.
  • Slave role: An upstream master exchanges the assigned input and output areas with the CPU.
  • Bus rate: All stations use the rate and addresses defined in the STEP 7 project.
  • Process image: Remote bytes are mapped into the controller address areas used by the program.

Separating engineering and controller communication

  • Programming access: STEP 7 reaches the CPU through the MPI network.
  • Operator access: Configured OP communication shares CPU connection resources.
  • S7 exchange: Controller-to-controller services use the assigned S7 connections.
  • Node plan: Unique MPI addresses and the documented rate keep all partners reachable.

Tracing a stop condition through CPU evidence

  • Supply check: The 24 V input remains inside the permissible range.
  • Memory check: Load and work-memory blocks agree with the intended project.
  • Bus check: MPI and PROFIBUS diagnostics identify a missing or mismatched station.
  • Program check: The diagnostic buffer and status LEDs locate startup, runtime, and I/O events.
Description
Siemens 6ES7315-2AF03-0AB0 is the CPU 315-2 DP central processing unit for a SIMATIC S7-300 controller. It executes the STEP 7 user program, updates the process image, and coordinates rack I/O together with MPI and PROFIBUS DP communication.

Within 6ES7315-2AF03-0AB0, 64 KB of integrated work memory holds the active program and data while an optional memory card expands the load-memory path. Timers, counters, data blocks, function blocks, and organization blocks are scheduled by the CPU operating system around the cyclic control program.

The MPI interface on 6ES7315-2AF03-0AB0 serves engineering, operator, and S7 communication, whereas the second interface can run as a PROFIBUS DP master or slave. As a master it polls configured field stations and maps their data into the S7-300 address areas; as a slave it exchanges an assigned data set with an upstream controller.

Power for 6ES7315-2AF03-0AB0 enters through the 24 V DC supply and feeds the processor and communication electronics before rack modules exchange data over the backplane. CPU LEDs and diagnostic buffers connect operating state, bus faults, and program events to the affected part of the station.
Alternative Names
6ES73152AF030AB0 6ES7 315-2AF03-0AB0 6ES7315 2AF03 0AB0 Siemens 6ES7315-2AF03-0AB0 6ES7315-2AF03-0AB0 CPU 315-2 DP CPU 315-2 DP 6ES7315-2AF03-0AB0 6ES 7315 2AF03 0AB0 6ES7315/2AF03/0AB0
Technical notes
Retain the STEP 7 project, memory-card image, MPI address, PROFIBUS master or slave map, rack assignment, and 24 V supply record for Siemens 6ES7315-2AF03-0AB0.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which files should be preserved before replacing Siemens 6ES7315-2AF03-0AB0?
Preserve the Siemens 6ES7315-2AF03-0AB0 STEP 7 archive, hardware configuration, blocks, symbols, memory-card image, MPI and DP addresses, and diagnostic records.
Why does 6ES7315-2AF03-0AB0 show a DP fault after the CPU starts?
For 6ES7315-2AF03-0AB0, compare slave addresses, GSD data, module layouts, bus rate, termination, cable condition, and each station diagnostic against the project.
Can Siemens 6ES7315-2AF03-0AB0 operate as both MPI node and DP master?
Yes. Siemens 6ES7315-2AF03-0AB0 uses its MPI interface for engineering and S7 services while the second interface independently coordinates the configured DP network.
What causes a memory reset request on 6ES7315-2AF03-0AB0?
A 6ES7315-2AF03-0AB0 reset request can follow an inconsistent memory card, incompatible project, startup fault, or maintenance command; read the LEDs and diagnostic buffer first.
How is an input-voltage problem separated from a program fault on Siemens 6ES7315-2AF03-0AB0?
Measure the Siemens 6ES7315-2AF03-0AB0 24 V supply, review CPU LEDs and buffer entries, then compare operating mode, memory contents, and rack diagnostics.