Instruction Manual

PLC programming
Library
General functions
8
8.8
8.8.1
l
365
EDSTCXN EN 2.0
8.8.1.7 IO_SET
FUNCTION IO_SET: BOOL
VAR_INPUT
byte_w : WORD;
bit_w : WORD;
END_VAR
The function inverts the state of an output. In the output byte byte_w (value
range 0 ... 31) the bit bit_w (value range 0 ... 7) will be inverted. The return
value of the function is of no consequence.
IO_SET(1,3); inverts the output Q0.10
8.8.1.8 Load_Param
FUNCTION LOAD_PARAM: DINT
VAR_INPUT
dateiname_s : STRING(15); (* "device:filename" *)
pindex_di : DINT; (* P field index *)
anzahl_di : DINT; (* number of the P field values *)
END_VAR
LOAD_PARAM reads anzahl_di P field values from the RAM disk (device: rd),
the FLASHPROM (device: sd) or a floppy disk (device: fd), which was
previously saved with SAVE_PARAM in the file, and enters the value after the
index pindex_di into the P field.
A return value other than 0 signals an error (¶ 391).
ret_di : DINT;
ret_di := LOAD_PARAM(’rd:daten.dat’, 1200, 30);
30 P field values from the file " daten.dat" are read from the RAM disk and
stored after index 1200 in the P field.
8.8.1.9 READ_PARAM_INT (only ETCxC)
FUNCTION READ_PARAM_INT: INT
VAR_INPUT
IDX_DI : DINT; (* Parameter index *)
END_VAR
The function returns the value of the parameter idx_di (as data type INT)
from the P field.
Declaration
Description
Example
Declaration
Description
Example
Declaration
Description