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Basic modules interact with the Axxon PSIM kernel via the data exchange interface of the Axxon PSIM kernel, using module.mdl, a dynamic library.The program modules and Axxon PSIM kernel interaction scheme are shown in the figure.
psimPsim.dbi and Axxon PSIMpsim.ddi object setting files contain the information about integrated modules (objects) required to support operation of the Axxon PSIM kernel. System setting files are edited using ddi.exe, a specialized utility. At the object integration stage, the names and parameters of the integrated object and related system events and responses, used for this object, and the values thereof are recorded in the system setting files.
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Consequently, module.mdl supports two-way data exchange between the Axxon PSIM kernel and module. The responses and events, which are used, will be described in the system manuals of the appropriate object (in Axxon PSIMpsim.ddi file).
To simplify integration with the joint data systems, auxiliary software or extension modules, Axxon PSIM™ PSIM system offers an alternative interface for data exchange between modules and the Axxon PSIM kernel – IIDK.