Lenze ETC Motion Control - Manual (Page 361)

PLC programming
Library
General functions
8
8.8
8.8.1
l
361 EDSTCXN EN 2.0
8.8 Library
The functions and functional blocks of the two axis representations ETCxC
and ETCxM are the same barring a few exceptions. Nonetheless there is an
ETC system library for each variant:
ETCxC: SysEtc.LIB
ETCxM: SysETCxM.LIB
All functions are described in detail below. They are found in both libraries.
Special functions of the variant are highlighted.
8.8.1 General functions
8.8.1.1 CenterString
FUNCTION CenterString: INT
VAR_INPUT
string_s : STRING(255) (* String, which is to be reformatted *)
linelen_di : DINT (* line length for centering *)
END_VAR
The function adds spaces to the string for centering. The return value
corresponds to the resulting total length of the string.
Ensure that the string variable declared is large enough to accommodate the
resulting string!
test_s : STRING (20):= ’Hello’;
CenterString(test_s, 20);
Invoking CenterString will insert 7 spaces before "Hello".
8.8.1.2 FMOD
FUNCTION FMOD: LREAL
VAR_INPUT
x: LREAL;
y: LREAL;
END_VAR
The function returns the floating point Rest of Division x/y (with the prefix
of x).
Result_lr : LREAL;
Result_lr := FMOD(10.5, 3.2); Result_lr = 0.9
Declaration
Description
Example
Declaration
Description
Example