Example of V.E. structures

This example explains by means of a V.E. List how to handle V.E. structures.

Task:

A position curve is given a name and contains a defined number of positions.

Each of these positions consists of X, Y, Z and a validity flag.

5 different curves are possible and each of these curves has a maximum of 12 points

Curve structure:

Position
Name

Position structure

X
Y
Z
Validity flag

#************************************************

# TC_CHANNEL_DESC_5: External variables

#************************************************

use_extended_string_var 1

# ----Definition of structures -------

# -------Position curve structure -------

struct[0].name typcurve

struct[0].element[0].name point

struct[0].element[0].type typ_pos

struct[0].element[0].array_elements 12

struct[0].element[1].name curve_name

struct[0].element[1].type STRING

#------- Spatial position structure -------

struct[1].name typ_pos

struct[1].element[0].name X

struct[1].element[0].type REAL64

struct[1].element[1].name Y

struct[1].element[1].type REAL64

struct[1].element[2].name Z

struct[1].element[2].type REAL64

struct[1].element[3].name pos_is_valid

struct[1].element[3].type BOOLEAN

#------- Variables -------

number_used_variables 1

var[0].name curve

var[0].type typcurve

var[0].scope GLOBAL

var[0].synchronisation FALSE

var[0].access_rights READ_WRITE

var[0].array_size 5

End

	The entry of structures and variables is case-sensitive. If the type with string is specified for the data type instead of STRING, the error P-ERR-21441 is output.

The applicable data types are listed in the parameter P-EXTV-00003.

	On the structures used are checked for correct syntax. The check is executed at controller start-up.

(assignment of a point from the NC program

%Setpoint.nc

N020 V.E.curve[0].point[2].X=11

N030 V.E.curve[0].point[2].Y=22

N040 V.E.curve[0].point[2].Z=33

N080 M30