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  2. Modbus - Wikipedia

    en.wikipedia.org/wiki/Modbus

    Exception Function code = Function code (1 byte) + 0x80. Exception Function code is equal to the Function code, except that its MSB is set to 1. Exception code (1 byte) of mb_excep_rsp_pdu is defined in the MODBUS Exception Codes table.

  3. Standard Commands for Programmable Instruments - Wikipedia

    en.wikipedia.org/wiki/Standard_Commands_for...

    SCPI was defined as an additional layer on top of the IEEE 488.2-1987 specification "Standard Codes, Formats, Protocols, and Common Commands". [4] The standard specifies a common syntax, command structure, and data formats, to be used with all instruments.

  4. MIL-STD-1553 - Wikipedia

    en.wikipedia.org/wiki/MIL-STD-1553

    Revision C is functionally equivalent to Revision B but contains updated graphics and tables to ease readability of the standard. [ 8 ] The MIL-STD-1553 standard is maintained by both the U.S. Department of Defense and the Aerospace branch of the Society of Automotive Engineers .

  5. Complex programmable logic device - Wikipedia

    en.wikipedia.org/wiki/Complex_programmable_logic...

    An Altera MAX 7000-series CPLD with 2500 gates. Die of an Altera EPM7032 EEPROM-based CPLD.Die size 3446x2252 μm. Technology node 1 μm. A complex programmable logic device (CPLD) is a programmable logic device with complexity between that of PALs and FPGAs, and architectural features of both.

  6. Fieldbus - Wikipedia

    en.wikipedia.org/wiki/Fieldbus

    In Table 5 we find that its protocol scope is defined in IEC 61784 Part 1. It uses protocol type 3, so the documents IEC 61158-3-3, 61158-4-3, 61158-5-3 and 61158-6-3 are required for the protocol definitions.

  7. IEC 61850 - Wikipedia

    en.wikipedia.org/wiki/IEC_61850

    IEC 61850 is an international standard defining communication protocols for intelligent electronic devices at electrical substations.It is a part of the International Electrotechnical Commission's (IEC) Technical Committee 57 reference architecture for electric power systems. [1]

  8. Industrial control system - Wikipedia

    en.wikipedia.org/wiki/Industrial_control_system

    These are platforms programmed in the five standardized IEC languages: ladder logic, structured text, function block, instruction list and sequential function chart. They can also be programmed in modern high-level languages such as C or C++. Additionally, they accept models developed in analytical tools such as MATLAB and Simulink.

  9. SAE J1939 - Wikipedia

    en.wikipedia.org/wiki/SAE_J1939

    A PGN identifies a message's function and associated data. J1939 attempts to define standard PGNs to encompass a wide range of automotive, agricultural, marine and off-road vehicle purposes. A range of PGNs (00FF00 16 through 00FFFF 16 , inclusive) is reserved for proprietary use.