Iec 61131 2 Pdf Download
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New additions to the standard are: A new definition of programmable controller is included along with a detailed logical definition and definition of an abstract (generic) programmable controller. A new term is defined: the soft control processor, which is a more specific term than the notion of a programmable controller. More detailed definitions are given for operating system, application programming interface, and application program. A new metacontrol unit is defined, and an erratum related to its definition is corrected. A new preview test is defined. This test simulates the first situation for which a control product in a particular field is intended and can be used to certify that it meets IEC 61131-2 for that application.
The changes to the standard are contained in a number of sections. The first section (A.1.1) describes an abstract controller definition, a logical definition of the abstract controller, and a checklist for verification. Next, Section A.1.3 contains changes in the physical definition of a programmable controller to conform with the definition of an abstract controller. d2c66b5586