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  2. Continuous Function Chart - Wikipedia

    en.wikipedia.org/wiki/Continuous_Function_Chart

    A Continuous Function Chart (CFC) is a graphic editor that can be used in conjunction with the STEP 7 software package [1] or with other tools, such as CODESYS. [2] It is used to create the entire software structure of the CPU from ready-made blocks.

  3. Electrical resistivity and conductivity - Wikipedia

    en.wikipedia.org/wiki/Electrical_resistivity_and...

    The SI unit of electrical conductivity is siemens per metre (S/m). Resistivity and conductivity are intensive properties of materials, giving the opposition of a standard cube of material to current. Electrical resistance and conductance are corresponding extensive properties that give the opposition of a specific object to electric current.

  4. Siemens - Wikipedia

    en.wikipedia.org/wiki/Siemens

    Siemens is the largest industrial manufacturing company in Europe, [7] and holds the position of global market leader in industrial automation and industrial software. [8] The origins of the conglomerate can be traced back to 1847 to the Telegraphen Bau-Anstalt von Siemens & Halske established in Berlin by Werner von Siemens and Johann Georg ...

  5. Sequential function chart - Wikipedia

    en.wikipedia.org/wiki/Sequential_function_chart

    Sequential function chart (SFC) is a visual programming language used for programmable logic controllers (PLCs). It is one of the five languages defined by IEC 61131-3 standard. The SFC standard is defined as Preparation of function charts for control systems , and was based on GRAFCET [ fr ] (itself based on binary Petri nets [ 1 ] [ 2 ] ).

  6. List of 7400-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_7400-series...

    Some TTL logic parts were made with an extended military-specification temperature range. These parts are prefixed with 54 instead of 74 in the part number. [1]A short-lived 64 prefix on Texas Instruments parts indicated an industrial temperature range; this prefix had been dropped from the TI literature by 1973.

  7. Siemens NX - Wikipedia

    en.wikipedia.org/wiki/Siemens_NX

    NX, formerly known as "Unigraphics", is an advanced high-end CAD/CAM/CAE, which has been owned since 2007 by Siemens Digital Industries Software. [1] [2] In 2000, Unigraphics purchased SDRC I-DEAS and began an effort to integrate aspects of both software packages into a single product which became Unigraphics NX or NX.

  8. Siemens Building Technologies - Wikipedia

    en.wikipedia.org/wiki/Siemens_Building_Technologies

    Siemens Building Technologies is an operating division of Siemens providing automation technologies and services for commercial, industrial and public buildings, and infrastructures. The division is headquartered in Zug, Switzerland, and employs 28,069 people worldwide (September 2018).

  9. Siemens and Halske T52 - Wikipedia

    en.wikipedia.org/wiki/Siemens_and_Halske_T52

    The Siemens & Halske T52, also known as the Geheimschreiber [1] ("secret teleprinter"), or Schlüsselfernschreibmaschine (SFM), was a World War II German cipher machine and teleprinter produced by the electrical engineering firm Siemens & Halske. The instrument and its traffic were codenamed Sturgeon by British cryptanalysts.