Configuring Gud Arrays; Overview - Siemens sinumerik 840d sl Configuration Manual

Configuring variables
6.3 Configuring GUD tags
6.3.2

Configuring GUD arrays

6.3.2.1

Overview

Introduction
GUDs in the NCU can also be defined as arrays, specifically as one, two and three-
dimensional arrays.
Table 6- 2
GUD definition
DEF {NCK|CHAN} type Name[number of lines,
number of columns]
DEF {NCK|CHAN} STRING[number of charac-
ters] Name[number of strings]
In WinCC (TIA Portal), however, multi-dimensional arrays must be linearized, which means
access is only performed via a single index:
● In one-dimensional arrays, this is simply the required index, starting at 0.
● With multi-dimensional arrays, the index must be calculated.
If, in WinCC (TIA Portal) you wish to dynamically access a GUD array via an index tag,
observe the associated notes (Page 80).
Note
Methods for indexing R parameters and GUD arrays
The method for indexing R parameters and GUD arrays depends on the employed Runtime
version or SIMATIC Panel.
See: Indexing of R parameters and GUD arrays (Page 70)
76
Definition of the GUD arrays in the NCU
Example
DEF NCK REAL REALNGUD[2,3]
DEF CHAN REAL REALCGUD[2,3]
DEF NCK STRING[8] NTEXT[5]
SINUMERIK Integrate Create MyHMI / WinCC V13 SP1
Configuration Manual, 11/2014