Glossary
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
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Pre-coincidence
Block change occurs already when the path distance approaches an amount equal to a specifiable delta of the
end position.
Program block
Program blocks contain the main program and subroutines of → part programs.
Program level
A part program started in the channel runs as a → main program on program level 0 (main program level). Any
part program called up in the main program runs as a → subprogram on a program level 1 ... n of its own.
Programmable frames
Programmable → frames enable dynamic definition of new coordinate system output points while the part
program is being executed. A distinction is made between absolute definition using a new frame and additive
definition with reference to an existing starting point.
Programmable Logic Control
Programmable logic controllers (PLC) are electronic controls, the function of which is stored as a program in the
control unit. This means that the layout and wiring of the device do not depend on the function of the control. The
programmable logic controller has the same structure as a computer; it consists of a CPU (central module) with
memory, input/output modules and an internal bus system. The peripherals and the programming language are
matched to the requirements of the control technology.
Programmable working area limitation
Limitation of the motion space of the tool to a space defined by programmed limitations.
Programming key
Character and character strings that have a defined meaning in the programming language for → part programs.
Protection zone
Three-dimensional zone within the → working area into which the tool tip must not pass.
Quadrant error compensation
Contour errors at quadrant transitions, which arise as a result of changing friction conditions on the guideways,
can be virtually entirely eliminated with the quadrant error compensation. Parameterization of the quadrant error
compensation is performed by means of a circuit test.
