Siemens IP-Module Especificações descarregar pdf (Página 38)

Siemens TCP/IP Ethernet Driver Help

Data Types Description

Data Type Description

Boolean Single bit

Byte Unsigned 8-bit value

Char Signed 8-bit value

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

BCD Two byte packed BCD

Value range is 0-9999. Behavior is undefined for values beyond this range

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

LBCD Four byte packed BCD

Value range is 0-99999999. Behavior is undefined for values beyond this range

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.

Date 64-bit floating-point value

String Null-terminated ASCII string*

*The Data Block subtype, String, is a NULL padded ASCII string.

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