Siemens SIMATIC S7-300 CPU 314C-2 DP Compact PLC – 6ES7314-6CH04-0AB0

The Siemens SIMATIC S7-300 CPU 314C-2 DP (6ES7314-6CH04-0AB0) is a compact programmable logic controller designed for industrial automation, machine control, and process monitoring applications. It combines CPU processing, integrated digital and analog I/O, temperature measurement capability, high-speed counting functions, and PROFIBUS DP communication in a single unit.

With 192 KB of work memory, 24 digital inputs, 16 digital outputs, four analog inputs, two analog outputs, and one Pt100 temperature input, this controller supports a wide range of automation tasks. Four integrated high-speed counters support frequencies up to 60 kHz, making it suitable for applications involving fast pulse counting and signal processing.

The integrated MPI and PROFIBUS DP interfaces enable communication with compatible Siemens programming devices, operator panels, and distributed I/O systems.

Technical Specifications

• Brand: Siemens

• Product Family: SIMATIC S7-300

• Product Type: CPU 314C-2 DP Compact CPU

• Part Number: 6ES7314-6CH04-0AB0

• Work Memory: 192 KB

• Digital Inputs: 24

• Digital Outputs: 16

• Analog Inputs: 4

• Analog Outputs: 2

• Temperature Measurement: 1 integrated Pt100 input

• High-Speed Counters: 4, up to 60 kHz

• Communication: MPI and integrated PROFIBUS DP interface

• Rated Supply Voltage: 24 V DC

• Permissible Supply Voltage: 19.2–28.8 V DC

• Rated Current Consumption: 880 mA

• Typical No-Load Current: 150 mA

• Typical Power Loss: 13 W

• Firmware Version: V3.3

• Hardware Functional Status: 01

• Front Connectors: 2 × 40-pin

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

• Maximum MMC Capacity: 8 MB

• Programming Software: STEP 7 V5.5 SP1 or later, or STEP 7 V5.3 SP2 with HSP 203

• Product Lifecycle: Spare part; phase-out announced

Key Features

• Compact PLC with integrated digital and analog I/O.

• 192 KB work memory for automation programs.

• 24 digital inputs and 16 digital outputs.

• Four analog inputs and two analog outputs.

• Integrated Pt100 temperature measurement input.

• Four high-speed counters supporting up to 60 kHz.

• MPI and PROFIBUS DP communication.

• Integrated 24 V DC power supply.

• Designed for existing SIMATIC S7-300 automation installations.

Typical Applications

• Industrial machine automation

• Production and assembly lines

• Temperature monitoring and control

• Analog signal acquisition and output control

• High-speed pulse counting

• Distributed I/O systems using PROFIBUS DP

• Maintenance and replacement of existing S7-300 systems

Compatibility and Installation

Before ordering, verify the PLC configuration, PROFIBUS DP network, analog signal requirements, Pt100 sensor wiring, STEP 7 software version, front connectors, and required Micro Memory Card. This is the CPU 314C-2 DP variant; it should not be confused with the CPU 314C-2 PtP or CPU 314C-2 PN/DP models.

Availability Notice

Siemens lists this product as a spare part and indicates that phase-out began on October 1, 2023. Confirm current stock, condition, warranty, and replacement compatibility with the supplier before purchasing.