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        • Lifecycle status

          Discontinued / Obsolete by OEM
          Apter Power provides 6ES7314-6CG03-0AB0 manuals, quotations, product selection, and model matching.

        6ES7314-6CG03-0AB0

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        1001 reviews ｜ Need a Specific Revision?
        Siemens 6ES7314-6CG03-0AB0 is a SIMATIC S7-300 CPU 314C-2 DP compact controller that executes machine logic and connects onboard mixed I/O to PROFIBUS DP devices.
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        Ships by Wednesday, October 28
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Technical specifications for 6ES7314-6CG03-0AB0

        • Manufacturer:
          Siemens
        • Part Number:
          6ES7314-6CG03-0AB0
        • Product Family:
          Siemens Simatic S7-300
        • Product Type:
          CPU 314C-2 DP Compact CPU
        • Stock:
          1
        • Firmware version:
          V2.6
        • Work memory:
          96 KB
        • Load memory:
          SIMATIC MMC up to 8 MB
        • Integrated digital inputs:
          24
        • Integrated digital outputs:
          16
        • Integrated analog inputs:
          4 + 1
        • Integrated analog outputs:
          2
        • First interface:
          MPI over RS485
        • Second interface:
          PROFIBUS DP over isolated RS485
        • Maximum DP rate:
          12 Mbaud
        • Maximum DP slaves:
          32
        • High-speed counters:
          4 channels; 60 kHz
        • Pulse outputs:
          4 channels; 2.5 kHz
        • Positioning channels:
          1
        • Supply voltage:
          24 V DC; 20.4–28.8 V
        • Power loss:
          Approximately 14 W
        • Weight:
          1.4903 lbs (0.676 kg)
        • Estimated shipping dimensions:
          12x12.5x13cm
        • 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 Integrated I/O PROFIBUS DP Memory and Program Technology Functions

        Features:

        • CPU 314C-2 DP processing with 96 KB work memory
        • Integrated digital, analog, counter, pulse, and positioning channels
        • MPI plus isolated PROFIBUS DP interfaces
        Siemens 6ES7314-6CG03-0AB0 combines S7-300 program execution and mixed onboard I/O in one compact CPU.

        An MMC supplies load memory while the CPU work area processes blocks, retentive data, timers, counters, and the process image.

        Separate MPI and PROFIBUS DP interfaces divide local engineering communication from distributed fieldbus data exchange.

        The Siemens 6ES7314-6CG03-0AB0 CPU 314C-2 DP Compact CPU may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Siemens 6ES7314-6CG03-0AB0 CPU 314C-2 DP Compact CPU 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.

        How local signals enter the CPU cycle

        • Digital inputs: Twenty-four onboard inputs place field states directly into the process-image path of 6ES7314-6CG03-0AB0.
        • Digital outputs: Sixteen integrated outputs receive results from the user program without an added signal module.
        • Analog channels: Four standard analog inputs plus one Pt100 path and two analog outputs share the compact CPU.
        • Address assignment: Default onboard addresses can be changed only within the CPU and process-image limits defined for the project.

        Distributed I/O through the second interface

        • DP master: The isolated RS485 interface of 6ES7314-6CG03-0AB0 can control up to 32 configured DP slaves.
        • DP slave: The same interface can instead expose the CPU as a slave with configured input and output areas.
        • Transfer rate: PROFIBUS operation is parameterized up to 12 Mbaud according to the network design.
        • Routing: When the DP interface is active, engineering communication can be routed through the configured station path.

        From MMC load memory to CPU execution

        • Load storage: A SIMATIC MMC holds the load memory for the 6ES7314-6CG03-0AB0 project.
        • Work memory: The CPU copies active blocks and data into its 96 KB integrated work area for execution.
        • Retentive data: Configured retentive regions preserve selected values across restart conditions.
        • Block structure: OBs schedule execution while FBs, FCs, and DBs divide program logic from stored process data.

        Special channels inside the compact CPU

        • High-speed counters: Four channels count input events up to the documented 60 kHz limit.
        • Pulse generation: Four pulse outputs can create PWM signals up to 2.5 kHz for configured control tasks.
        • Positioning: One integrated channel supports the documented controlled-positioning function.
        • PID control: An integrated control SFB links process feedback and program setpoints without a separate controller module.
        Description
        Processing, onboard mixed I/O, and PROFIBUS DP are combined in Siemens 6ES7314-6CG03-0AB0, a CPU 314C-2 DP compact controller in the SIMATIC S7-300 family. It executes the STEP 7 user program and maintains the process image for the connected signals.

        Inside 6ES7314-6CG03-0AB0, 96 KB of work memory holds active program and data blocks while a SIMATIC Micro Memory Card provides the load-memory path. Retentive data and the maintenance-free MMC buffering preserve configured program information without a separate backup battery for the load memory.

        The first RS485 interface of 6ES7314-6CG03-0AB0 carries MPI engineering and operator communication. Its second isolated RS485 interface operates as a PROFIBUS DP master or slave, linking the compact CPU to distributed stations without requiring a separate DP communication module.

        Integrated technology functions let 6ES7314-6CG03-0AB0 connect four high-speed counter channels, four pulse outputs, one controlled-positioning channel, and a PID control block to the user program. These functions share the compact CPU with the onboard I/O, so their configured addresses must be coordinated with the remaining S7-300 process image.
        Alternative Names
        6ES73146CG030AB0 6ES7 314 6CG03 0AB0 6ES7314 6CG03 0AB0 Siemens 6ES7314-6CG03-0AB0 6ES7314-6CG03-0AB0 CPU 314C-2 DP Siemens CPU 314C-2 DP 6CG03 6ES7314-6CGO3-0AB0 6ES73I4-6CG03-0AB0
        Technical notes
        Siemens 6ES7314-6CG03-0AB0 combines 96 KB work memory, integrated digital and analog I/O, four technology channels, MPI, and a second PROFIBUS DP interface.
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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.
        VIEW ALL FAQS
        Which interface on 6ES7314-6CG03-0AB0 should be used for PROFIBUS DP?
        Use the second, electrically isolated RS485 interface of Siemens 6ES7314-6CG03-0AB0 for PROFIBUS DP master or slave operation; the first interface is MPI.
        Does 6ES7314-6CG03-0AB0 require a SIMATIC Micro Memory Card?
        Yes. Siemens 6ES7314-6CG03-0AB0 uses a SIMATIC MMC for load memory, with supported capacity up to 8 MB.
        How are local analog signals organized on 6ES7314-6CG03-0AB0?
        Siemens 6ES7314-6CG03-0AB0 provides four standard analog inputs, one additional Pt100 input path, and two onboard analog outputs.
        Can 6ES7314-6CG03-0AB0 count signals faster than a normal cyclic input?
        Yes. Siemens 6ES7314-6CG03-0AB0 includes four high-speed counter channels rated up to 60 kHz for configured technology functions.
        Why must MPI and DP settings be treated separately on 6ES7314-6CG03-0AB0?
        The first interface of Siemens 6ES7314-6CG03-0AB0 carries MPI, while the second isolated interface carries PROFIBUS DP with its own address and bus parameters.

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