Siemens SIMATIC TI505 Guide de l'utilisateur télécharger pdf (Page 11)

Simatic/TI 505 Ethernet Driver Help

Data Types Description

Data Type Description

Boolean Single bit

Word Unsigned 16-bit value

bit 0 is the low bit

bit 15 is the high bit

Short Signed 16-bit value

bit 0 is the low bit

bit 14 is the high bit

bit 15 is the sign bit

DWord Unsigned 32-bit value

bit 0 is the low bit

bit 31 is the high bit

Long* Signed 32-bit value

bit 0 is the low bit

bit 30 is the high bit

bit 31 is the sign bit

Float** 32-bit floating point value

The driver interprets two consecutive registers as a floating-point value by making the

second register the high word and the first register the low word.

String Null-terminated ASCII string

This includes Hi-Lo Lo-Hi byte order selection.

*Long is the same as Double in the TISOFT programming software.

**Float is the same as Real in the TISOFT programming software.

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Siemens SIMATIC TI505 Guide de l'utilisateur Page 11