Siemens 6ES7314-6EH04-0AB0 S7-300 CPU

The Siemens 6ES7314-6EH04-0AB0 CPU 314C-2 PN/DP is a compact controller in the SIMATIC S7-300 family, combining integrated digital and analog I/O, technological functions, MPI/DP, and a dual-port PROFINET industrial Ethernet interface for machine automation.

Key Technical Specifications

• Manufacturer: Siemens
• Part Number: 6ES7314-6EH04-0AB0
• Product Series: SIMATIC S7-300
• CPU Model: CPU 314C-2 PN/DP
• Work Memory: 192 KB integrated work memory (operation requires a SIMATIC Micro Memory Card / MMC for load memory and retentive data storage, supporting up to 8 MB MMC)
• Integrated Digital Inputs: 24 digital inputs (24V DC); specific inputs may be allocated to onboard technological functions depending on configured modes
• Integrated Digital Outputs: 16 digital outputs (24V DC transistor, 0.5A rated current); specific outputs may be allocated to onboard technological functions depending on configured modes
• Integrated Analog Inputs: 4 analog input channels (configurable for standard voltage/current) plus 1 dedicated channel for Pt100 resistance temperature measurement
• Integrated Analog Outputs: 2 analog output channels (voltage/current)
• Integrated Technological Functions: 4 integrated high-speed counter channels (up to 60 kHz depending on mode and wiring); onboard support for frequency measurement, period duration, and positioning functions subject to channel assignment and operational mode limits
• Communication Interface 1 (MPI/DP): 1x combined RS-485 interface configurable for MPI or PROFIBUS DP master/slave communication (up to 12 Mbps)
• Communication Interface 2 (PROFINET): 1x PROFINET interface (Ethernet) with an integrated 2-port switch (2x RJ45 ports, 100 Mbps full duplex) supporting PROFINET IO services
• Front Connectors: Requires 2x 40-pin front connectors for field I/O wiring (available separately)
• Engineering Software Requirements: Siemens specifies STEP 7 V5.5 or higher with hardware support package HSP 191 for this CPU. Verify the installed STEP 7 version, service pack, and HSP compatibility against the applicable Siemens documentation before configuration. Confirm TIA Portal compatibility separately for the target engineering environment.

Applications and System Configuration

This compact CPU is designed for industrial machinery and distributed control systems requiring onboard digital/analog I/O, integrated counting or positioning tasks, and direct PROFINET network integration. Before replacing an installed unit, verify terminal wiring, 40-pin front connector pinouts, analog signal scaling, technological channel assignments, communication topology, and engineering software project compatibility against official Siemens documentation.

Product Status and Sourcing Notice

The SIMATIC S7-300 product family is a mature, legacy platform from Siemens, with this model categorized by the manufacturer as a spare part. Confirm the specific hardware revision, firmware release, physical condition, and MMC memory card requirements for your application prior to order confirmation. Product availability, unit condition, pricing, lead time, warranty terms, and shipping options will be confirmed individually in the quotation.

Request a Quote

Submit an inquiry with part number 6ES7314-6EH04-0AB0, required quantity, destination country, and any relevant machine or nameplate details. Availability, unit condition, pricing, lead time, warranty terms, and shipping options will be confirmed individually in the quotation.

Technical information is provided for preliminary model identification. Always verify the physical unit nameplate and official Siemens documentation before installation.