
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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