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2026-09-07
The Siemens 6ES7314-6CG03-0AB0 is a SIMATIC S7-300 CPU 314C-2 PN/DP compact processor designed for industrial automation and machine control applications. With integrated PROFINET and PROFIBUS DP communication interfaces, the CPU 314C-2 PN/DP combines PLC processing and integrated I/O capabilities in a compact automation solution.
For maintenance teams, system integrators and industrial automation distributors searching for a Siemens 6ES7314-6CG03-0AB0 replacement, identifying the exact Siemens article number is essential for maintaining compatibility with an existing S7-300 control system.
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The 6ES7314-6CG03-0AB0 is a Siemens SIMATIC S7-300 CPU 314C-2 PN/DP compact processor.
The CPU 314C-2 PN/DP is designed for applications that require PLC processing together with integrated communication and I/O functions. It can be used in machine automation, production equipment, material handling systems and other industrial control applications.
The complete identification is:
Siemens Article Number: 6ES7314-6CG03-0AB0
Product: SIMATIC S7-300 CPU 314C-2 PN/DP
Processor Type: Compact CPU
For customers sourcing this exact Siemens component, the complete MLFB 6ES7314-6CG03-0AB0 should be included in purchase inquiries to avoid confusion with other CPU 314C variants.
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| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Family | SIMATIC S7-300 |
| CPU Model | CPU 314C-2 PN/DP |
| Article Number | 6ES7314-6CG03-0AB0 |
| Product Type | Compact CPU |
| Programming / Engineering | STEP 7 |
| Communication | PROFINET + PROFIBUS DP |
| Integrated I/O | Yes |
| Application | Industrial automation and machine control |
| Mounting System | S7-300 |
The exact hardware and firmware configuration should always be checked against the existing S7-300 project documentation before replacement.
The CPU 314C-2 PN/DP integrates several automation functions into a compact S7-300 CPU, helping reduce the amount of additional hardware required for suitable machine-control applications.
For applications where cabinet space and hardware integration are important, a compact CPU can simplify the overall control architecture.
The 6ES7314-6CG03-0AB0 supports PROFINET communication, making it suitable for industrial Ethernet-based automation networks.
PROFINET can be used for communication between the PLC, distributed I/O devices, HMIs and other compatible automation equipment.
The CPU also supports PROFIBUS DP, allowing it to communicate with compatible distributed I/O and field devices.
This combination of PROFINET and PROFIBUS DP makes the CPU 314C-2 PN/DP useful when an existing automation system contains both Ethernet-based and PROFIBUS-based devices.
One of the main characteristics of the CPU 314C-2 PN/DP is its integrated I/O functionality.
Instead of using only a CPU with separate modules for every basic control function, the compact CPU can provide integrated functions for machine automation applications.
The Siemens 6ES7314-6CG03-0AB0 CPU 314C-2 PN/DP can be used in various industrial automation environments.
The compact CPU is suitable for controlling automated machinery and production equipment.
Typical functions include:
Sequence control
Digital signal processing
Machine status monitoring
Communication with HMI systems
Distributed I/O communication
Basic production control
Manufacturing machines can use an S7-300 CPU as the central controller for sensors, actuators, drives and operator interfaces.
Conveyor systems, sorting equipment and automated material-handling machinery can use PLC controllers to coordinate sensors, motors and machine sequences.
The combination of PROFINET and PROFIBUS DP makes the CPU suitable for industrial systems that communicate with different generations of Siemens automation equipment.
Many industrial plants continue to operate established Siemens S7-300 control systems. When a CPU fails, replacing it quickly can be important for reducing machine downtime.
For this reason, industrial maintenance teams may keep Siemens S7-300 spare parts in stock.
The exact article number is especially important because Siemens produced multiple S7-300 CPU variants with different communication interfaces, memory configurations and integrated functions.
When replacing a CPU, do not select a product based only on the name "CPU 314C." Always compare the complete article number and existing system configuration.
Before replacing an existing S7-300 CPU, maintenance engineers should verify the following information:
Siemens article number
CPU model
Firmware version
Existing STEP 7 project
PROFINET configuration
PROFIBUS DP configuration
Integrated I/O configuration
Memory and communication requirements
Existing hardware configuration
The original article number should be checked carefully:
6ES7314-6CG03-0AB0
A similar-looking Siemens S7-300 CPU may not provide exactly the same functionality or interfaces.
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Keeping a replacement CPU available can be particularly useful for factories operating critical production equipment.
The Siemens 6ES7314-6CG03-0AB0 CPU 314C-2 PN/DP can be considered for:
S7-300 PLC maintenance
Emergency CPU replacement
Machine refurbishment
Industrial automation repair
Control-system upgrades
Siemens PLC spare-parts inventory
Production-line maintenance
For international buyers, the full Siemens MLFB should be included when requesting a quotation.
Siemens 6ES7314-6CG03-0AB0 is the article number for a SIMATIC S7-300 CPU 314C-2 PN/DP compact processor.
Yes. The CPU 314C-2 PN/DP belongs to the Siemens SIMATIC S7-300 PLC family.
Yes. The CPU 314C-2 PN/DP includes PROFINET communication capability.
Yes. PROFIBUS DP is also supported, making the CPU suitable for automation systems using compatible PROFIBUS DP devices.
Yes. The CPU 314C-2 PN/DP is a compact S7-300 CPU with integrated I/O functionality.
CXY Trade PLC supplies Siemens industrial automation components and S7-300 spare parts, including the 6ES7314-6CG03-0AB0 CPU 314C-2 PN/DP.
Customers can check the current product availability and purchasing information on the product page:
The Siemens 6ES7314-6CG03-0AB0 CPU 314C-2 PN/DP is a compact SIMATIC S7-300 processor designed for industrial automation applications.
Its combination of PLC processing, integrated I/O functions, PROFINET and PROFIBUS DP communication makes it suitable for machine automation, manufacturing equipment and established S7-300 control systems.
For customers searching for a Siemens 6ES7314-6CG03-0AB0 replacement, CPU 314C-2 PN/DP, or Siemens S7-300 spare parts, checking the complete article number is the best way to identify the required component.
CXY Trade PLC provides Siemens PLC and industrial automation spare parts for customers worldwide.
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