• Original New Siemens 6ES7315-2EH14-0AB0 SIMATIC S7-300 CPU 315-2 PN/DP front view
  • 6ES7315-2EH14-0AB0 CPU 315-2 PN/DP 384KB MPI/DP PROFINET | Siemens - PLC ERA
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SIEMENS

6ES7315-2EH14-0AB0 CPU 315-2 PN/DP 384KB MPI/DP PROFINET | Siemens

6ES7315-2EH14-0AB0 CPU 315-2 PN/DP 384KB MPI/DP PROFINET | Siemens

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$2,557.00 USD
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The Original New Siemens 6ES7315-2EH14-0AB0 SIMATIC S7-300 CPU 315-2 PN/DP is a central processing unit designed for medium-scale automation systems with distributed I/O structures and moderate program volume requirements. It features 384 KB integrated work memory, a 1st interface MPI/DP with 12 Mbps communication speed, and a 2nd interface Ethernet PROFINET with an integrated 2-port switch. This CPU can be used as a PROFINET IO controller and as a standard PROFIBUS DP master, and also supports use as a distributed intelligent slave (DP slave). A Micro Memory Card (MMC) is required for operation.

Core Engineering Highlights:
384 KB integrated work memory (non‑expandable) | 0.05 µs bit operations | 1st interface MPI/DP 12 Mbps | 2nd interface Ethernet PROFINET with 2‑port switch | 24V DC rated supply | 750 mA rated current consumption | 4.65 W typical power loss | 0.05 µs bit processing time | 16,384 digital I/O (1,024 central) | Supports isochronous mode | Micro Memory Card required (max. 8 MB) | IP20 protection

Key Features:

  • Original New Siemens 6ES7315-2EH14-0AB0 CPU

  • 384 KB integrated work memory (non‑expandable)

  • 1st interface: MPI/DP, 12 Mbps

  • 2nd interface: Ethernet PROFINET with integrated 2‑port switch

  • 0.05 µs bit processing time — 0.09 µs for word operations, 0.12 µs for fixed point arithmetic, 0.45 µs for floating point arithmetic

  • Supports PROFINET IO controller and PROFIBUS DP master operation

  • Supports isochronous mode via PROFIBUS DP or PROFINET interface

  • Supports software redundancy

  • 5 ms mains buffering time

  • 10‑year data retention on MMC after last programming

  • Hardware clock with 6‑week backup time at 40°C ambient temperature

  • Up to 16,384 digital I/O (1,024 central) and 1,024 analog I/O (256 central)

  • 1,024 total blocks (DBs, FCs, FBs)

  • 256 S7 counters and 256 timers

  • 4 cyclic interrupt OBs (OB32–35)

  • Micro Memory Card required — supports up to 8 MB

  • 24V DC power supply (20.4–28.8V range)

  • 2 A min. external protection for power supply lines

  • STEP 7 V5.5 or higher programming package

  • IP20 protection

  • 130 x 125 x 40 mm dimensions

  • 0.38 kg weight

  • 0°C to +60°C operating temperature

  • RoHS compliant

Applications:

  • Medium‑scale automation systems with distributed I/O structures

  • Manufacturing and process control systems

  • Distributed automation architectures

  • Software redundancy applications

  • Factory automation and machine control

  • Legacy S7‑300 system expansion and spare part replacement

Technical Specifications:



Attribute Specification
Catalog Number 6ES7315-2EH14-0AB0
Product Type Designation CPU 315-2 PN/DP
Product Family SIMATIC S7-300
HW Functional Status 01
Firmware Version V3.2
Product Status Spare part

Memory:



Attribute Specification
Work Memory (integrated) 384 KB
Work Memory (expandable) No
Load Memory Micro Memory Card (MMC) required
MMC (max.) 8 MB
Data Retention on MMC 10 years minimum (after last programming)

CPU Processing Times:



Attribute Specification
Bit Operations (typ.) 0.05 µs
Word Operations (typ.) 0.09 µs
Fixed Point Arithmetic (typ.) 0.12 µs
Floating Point Arithmetic (typ.) 0.45 µs

CPU Blocks:



Attribute Specification
Number of Blocks (Total) 1,024 (DBs, FCs, FBs)
DB (max.) 1,024; Number range 1 to 16,000; Size max. 64 KB
FB (max.) 1,024; Number range 0 to 7,999; Size max. 64 KB
FC (max.) 1,024; Number range 0 to 7,999; Size max. 64 KB

Address Area:



Attribute Specification
I/O Address Area (Inputs) 2,048 bytes
I/O Address Area (Outputs) 2,048 bytes
Digital Channels (Inputs) 16,384 (1,024 central)
Digital Channels (Outputs) 16,384 (1,024 central)
Analog Channels (Inputs) 1,024 (256 central)
Analog Channels (Outputs) 1,024 (256 central)

Interfaces:



Attribute Specification
1st Interface MPI/DP, 12 Mbps
2nd Interface Ethernet PROFINET with 2‑port switch
PROFINET Ports 2 (integrated switch)

Counters & Timers:



Attribute Specification
S7 Counters 256 (retentivity adjustable)
S7 Timers 256

Isochronous Mode:



Attribute Specification
Isochronous Mode Support Yes; Via PROFIBUS DP or PROFINET interface

Power Supply:



Attribute Specification
Rated Supply Voltage 24V DC
Permissible Range (Lower) 20.4V DC
Permissible Range (Upper) 28.8V DC
External Protection (recommended) 2A min.
Mains Buffering Time 5 ms

Current/Power:



Attribute Specification
Current Consumption (Rated) 750 mA
Current Consumption (No Load, typ.) 150 mA
Inrush Current (typ.) 4 A
I²t 1 A²·s
Power Loss (typ.) 4.65 W

Clock:



Attribute Specification
Hardware Clock Yes
Backup Time 6 weeks (at 40°C)
Deviation per Day (max.) 10 s
Deviation per Day (typ.) 2 s

Physical & Environmental:



Attribute Specification
Enclosure Type IP20
Dimensions (W x H x D) 40 x 125 x 130 mm
Weight Approx. 0.38 kg
Operating Temperature 0°C to +60°C
Country of Origin Germany
Certifications CE, cULus
RoHS Compliant Yes

System Compatibility:

  • Siemens SIMATIC S7-300 series architecture

  • S7-300 I/O modules (digital, analog, special function)

  • S7‑300 communication processors (CPs) and function modules (FMs)

  • STEP 7 V5.5 or higher programming software

  • TIA Portal via HSP (Hardware Support Package)

  • PROFIBUS DP and PROFINET networks

  • Up to 3 expansion racks (4 racks total)

  • Up to 8 modules per rack

Typical System Architecture:
24V DC Power Supply
↓
6ES7315-2EH14-0AB0 CPU 315-2 PN/DP (S7‑300 rack)
│
├── 1st Interface: MPI/DP (12 Mbps) → PROFIBUS DP Network
├── 2nd Interface: PROFINET (2‑port switch) → PROFINET Network
├── Micro Memory Card (required, max. 8 MB) → Program/Data Storage
│
├── Up to 3 Expansion Racks (total 4 racks, 8 modules per rack)
├── S7‑300 I/O Modules (Digital, Analog, Special Function)
├── Communication Processors (CPs) and Function Modules (FMs)
│
↓
STEP 7 V5.5 / TIA Portal Programming Software

Related Products:

  • 6ES7953-8LJ30-0AA0 – SIMATIC S7 Micro Memory Card 2 MB (required accessory)

  • 6ES7953-8LL31-0AA0 – SIMATIC S7 Micro Memory Card 4 MB

  • 6ES7953-8LM31-0AA0 – SIMATIC S7 Micro Memory Card 8 MB

  • 6ES7315-2EH13-0AB0 – Previous version (drop‑in compatible replacement)

  • 6ES7315-2AH14-0AB0 – CPU 315‑2 DP (without PROFINET interface)

  • 6ES7317-2EK14-0AB0 – CPU 317‑2 PN/DP (higher memory, faster performance)

  • 6ES7390-1AE80-0AA0 – S7‑300 mounting rail (160 mm)

  • 6ES7390-1AF30-0AA0 – S7‑300 mounting rail (530 mm)

  • 6ES7392-1AJ00-0AA0 – S7‑300 front connector (20‑pin, screw‑type)

  • 6ES7392-1BM01-0AA0 – S7‑300 front connector (40‑pin, screw‑type)

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Siemens and SIMATIC are trademarks of Siemens AG.

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