Siemens SINUMERIK 840D sl Programming Manual page 24

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Table of Contents

Flexible NC programming

1.3 Array definitions (DEF, SET, REP)

Memory requirements

Variable type

The maximum array size determines the size of the memory areas in which the variable

memory is managed. It should not be set higher than actually required.

Default: 812 bytes

If no large arrays are defined, select: 256 bytes.

Example: Definition of BOOL arrays

Global user data must contain PLC machine data for switching the control on/off.

Example Definition of arrays with maximum array size for the 1st and 2nd dimension

DEF INT NAME[32767,32767]

Memory requirement per element

String length + 1

∼ 400 bytes, depending on the number of axes

Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0

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