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6ES5095-8MC03

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A compact controller for local machine logic, Siemens 6ES5095-8MC03 combines SIMATIC S5-95U processing and onboard I/O with a second AS511 serial interface.
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Technical specifications for 6ES5095-8MC03

  • Manufacturer:
    Siemens
  • Part Number:
    6ES5095-8MC03
  • Product Family:
    Siemens Simatic S5
  • Product Type:
    Compact PLC with Second AS511 Interface
  • Stock:
    1
  • Additional interface:
    Second AS511 serial interface
  • Supply voltage:
    24 V DC
  • Mounting:
    35 mm DIN rail
  • Programming language:
    STEP 5
  • I/O expansion:
    SIMATIC S5-100U modules
  • Integrated signal functions:
    Digital, analog, counter, and interrupt I/O
  • Serial signaling:
    20 mA TTY / AS511
  • Weight:
    2.8043 lbs (1.272 kg)
  • Estimated shipping dimensions:
    15.9x15.5x15.2cm
  • 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 Second Interface I/O Organization Mounting and Power Programming Flow

Features:

  • SIMATIC S5-95U compact controller architecture
  • Second AS511 serial interface
  • Onboard I/O with S5-100U expansion path
Siemens 6ES5095-8MC03 executes STEP 5 logic and exchanges process signals through integrated S5-95U resources.

The second AS511 interface on 6ES5095-8MC03 separates an additional serial communication path from the controller's primary engineering connection.

Bus units let 6ES5095-8MC03 extend local signal capacity with S5-100U I/O modules when the onboard points are insufficient.

The Siemens 6ES5095-8MC03 Compact PLC with Second AS511 Interface may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES5095-8MC03 Compact PLC with Second AS511 Interface 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 the extra AS511 path changes access

  • Separate path: The second AS511 interface gives 6ES5095-8MC03 an additional serial connection beyond the primary controller interface.
  • Engineering access: A programming device can use an AS511 path to exchange STEP 5 project and diagnostic data.
  • Operator link: The other serial route can be assigned to a supported operator or communication task defined for the S5-95U configuration.
  • Variant identity: The 8MC03 suffix identifies the S5-95U order configuration with the second AS511 interface.

From onboard signals to external modules

  • Local signals: 6ES5095-8MC03 processes integrated digital, analog, counter, and interrupt functions without a separate CPU rack.
  • Expansion bus: S5-100U modules connect through bus units when the onboard signal set does not cover the control task.
  • Signal exchange: The CPU updates process inputs, executes the STEP 5 program, and then transfers results to the output area.
  • Bus units: Each bus unit carries module communication and field-terminal connections for the attached external I/O.

Compact controller installation path

  • Rail mounting: The S5-95U body of 6ES5095-8MC03 snaps onto a 35 mm standard mounting rail.
  • Supply input: A 24 V DC source powers the controller and must be sized for the base unit and attached I/O.
  • Expansion position: Bus units mount beside the controller so external I/O follows the local S5-100U bus path.
  • Cabinet planning: Added bus units increase the station width even though 6ES5095-8MC03 remains a compact CPU.

How STEP 5 data reaches the controller

  • Program transfer: STEP 5 engineering data enters 6ES5095-8MC03 through an AS511 serial connection.
  • Cycle processing: The CPU reads process data, executes the stored control program, and updates output data each scan.
  • Integrated blocks: Parameter blocks configure onboard functions such as analog processing, counters, interrupts, and communication.
  • Diagnostics: Programming access exposes controller status and stored diagnostic information without changing the field wiring.
Description
Built as a SIMATIC S5-95U compact programmable controller, Siemens 6ES5095-8MC03 adds a second AS511 interface to its controller structure. It executes STEP 5 control logic, exchanges signals through onboard I/O, and provides the processing core for a small S5 control station.

The additional serial path distinguishes 6ES5095-8MC03 from basic S5-95U configurations. One AS511 connection can remain assigned to programming while the second interface serves a separate serial communication task, keeping the two access paths functionally distinct.

Mounted on a 35 mm rail, 6ES5095-8MC03 can operate from its integrated digital, analog, counter, and interrupt resources or exchange process data with added S5-100U I/O modules. The external modules connect through bus units, so expansion increases the available signal points without changing the compact CPU structure.

A 24 V DC supply powers 6ES5095-8MC03 and its internal controller circuits. Engineering parameters, integrated functions, and serial-interface behavior are configured within the SIMATIC S5 programming environment rather than by separate front-panel controls.
Alternative Names
6ES50958MC03 6ES5 095 8MC03 6ES5095 8MC03 Siemens 6ES5095-8MC03 6ES5095-8MC03 S5-95U Siemens S5-95U 8MC03 6ES5O95-8MC03 6ES5095-8MCO3
Technical notes
Siemens 6ES5095-8MC03 runs STEP 5 control logic while its additional AS511 interface creates a separate serial path for programming or operator communication.
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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.
What makes 6ES5095-8MC03 different from a basic S5-95U compact controller?
Siemens 6ES5095-8MC03 includes a second AS511 serial interface, so it provides an additional communication path alongside the normal S5-95U controller functions.
Can 6ES5095-8MC03 run without external S5-100U I/O modules?
Yes. Siemens 6ES5095-8MC03 can use its onboard signal functions by itself; S5-100U modules are added only when the station needs more I/O.
Where does a programming device connect when commissioning 6ES5095-8MC03?
A programming device exchanges STEP 5 project and diagnostic data with Siemens 6ES5095-8MC03 through an AS511 serial interface.
How is power brought into 6ES5095-8MC03?
Siemens 6ES5095-8MC03 uses a 24 V DC supply for the compact controller, while any attached I/O must be included in the station power calculation.
Why must the second-interface configuration be checked before replacing 6ES5095-8MC03?
The extra AS511 path is part of the Siemens 6ES5095-8MC03 configuration; a unit without that second interface would not preserve the same two serial access routes.