HEIDENHAIN ND 2100G - Manual (Page 179)

ND 2100G GAGE-CHEK 179
2.4 F
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ulas
Basic functions include:
„ Channel functions (C1...) include channel inputs in formulas
„ Dimension functions (D1,D2...H1,H2...S1,S2...) include other
dimensions in formulas
„ Arithmetic operators ( + - * / ) add, subtract, multiply or divide
„ Parentheses ( ) group terms within a formula
„ Square roots (sqrt) find the square roots
„ Exponents (exp) raise to a power
„ Trig functions (sin, cos, tan) find trigonometric values
„ Inverse trig functions (asin, acos, atan) find inverse trig values
„ Absolute value (abs) remove sign (polarity)
„ Integer (int) convert real numbers to whole numbers
„ Constants (Numbers and pi) include values that don’t change in
formulas
Channel functions
Channel function values are determined by the outputs of
measurement devices attached to channel input connectors on the
rear panel of the ND 2100G. These values can be offset, scaled or
calibrated using the Master or SLEC/LEC error correction functions.
The Master function is available to operators using the front panel
MASTER soft key, can be used in formulas and is used to offset or
calibrate channel inputs. Error correction is only available to
supervisors using the SLEC setup screen, and is used to compensate
for transducer or encoder nonlinearities.
The Master feature is discussed later in this chapter on
page 250 and in Chapter 1: Operation on page 35. The
SLEC and LEC error correction features are discussed on
page 115.