Siemens B4 Uživatelský manuál stáhnout pdf (Strana 14)

Automation– and Drive Technology- SCE

Data in a data block must be determined through data types.

The following standard- data types are defined in the S7 below :

Type and

description

Size

in Bits

Format-Options Range and number notation

(lowest to highest values)

Example

BOOL (Bit) 1 Boolean text TRUE/FALSE TRUE

BYTE (Byte) 8 Hexadecimal

number

B#16#0 to B#16#FF B#16#10

WORD (Word) 16 Binary number 2#0 to 2#1111_1111_1111_1111 2#0001_0000_0000_0000

Hexadecimal

number

W#16#0 to W#16#FFFF W#16#1000

BCD C#0 to C#999 C#998

Decimal number

unsigned

B#(0,0) to B#(255,255) B#(10,20)

DWORD (Double

word)

32 Binary number 2#0 to

2#1111_1111_1111_1111_1111_1111

_1111_1111

2#1000_0001_0001_1000_1

011_1011_0111_1111

Hexadecimal

number

DW#16#0000_0000 to

DW#16#FFFF_FFFF

DW#16#00A2_1234

Decimal number

unsigned

B#(0,0,0,0) to B#(255,255,255,255) B#(1,14,100,120)

INT (Integer) 16 Decimal number

signed

-32768 to 32767 1

DINT (Int,32 bit) 32 Decimal number

signed

L#-2147483648 to L#2147483647 L#1

REAL (Floating-

point number)

32 IEEE floating-point

number

Upper limit: +/-3.402823e+38

Lower limit: +/-1.175495e-38

1.234567e+13

S5TIME

(Simatic-Time)

16 S7-Time in steps of

10 ms

S5T#0H_0M_0S_10MS to

S5T#2H_46M_30S_0MS and

S5T#0H_0M_0S_0MS

S5T#0H_1M_0S_0MS

S5TIME#1H_1M_0S_0MS

TIME

(IEC-Date)

32 IEC-Time in steps

from 1ms, integer

signed

-T#24D_20H_31M_23S_648MS to

T#24D_20H_31M_23S_647MS

T#0D_1H_1M_0S_0MS

TIME#0D_1H_1M_0S_0MS

DATE

(IEC-Date)

16 IEC-Date in steps

of 1 day

D#1990-1-1 to D#2168-12-31 DATE#1994-3-15

TIME_OF_DAY

(Time)

32 Time in steps of

1ms

TOD#0:0:0.0 to TOD#23:59:59.999 TIME_OF_DAY#1:10:3.3

CHAR (Character) 8 ASCII-Characters ´A´, ´B´ etc. ´B´

T I A Training document Page 14 of 18 Module B4

Last revision: 02/2002 Data blocks

Forward Notes Generating data blocks

1 2 ... 9 10 11 12 13 14 15 16 17 18

DB 11DB 10FB 1 6

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