PS4 Sucosoft S40 h1309g.pdf

Sucosoft S40

Language Elements for

PS4-200, PS4-300 and PS416

08/00 AWB27-1309-GB

Data Types

Keyword

Data type, number of bits and default value

BOOL

Boolean number; takes on values 1 or 0

corresponding to “TRUE” or “FALSE”,

1 bit, default value 0

SINT

Short integer with value range 128 to +127,

8 bit, default value 0

INT

–32 768 to +32 767, 16 bit, default value 0

DINT

Double Integer; double whole number in the

value range –2 147 483 648 to +2 147 483 647,

32 bit, default value 0

–

USINT

Unsigned short integer with value range 0 to

255, 8 bit, Default value 0

UINT

Unsigned Integer; whole number with no sign

with the value range 0 to 65 535, 16 bit,

default value 0

UDINT

Unsigned Double Integer;

double whole number with no sign with the

value range 0 to 4 294 967295,

32 bit, default value 0

–

REAL

Real number, 32 bit, default value 0.0

–

TIME

Time duration, Default value T#0s

DATE

Calendar date, Default value D#1900-01-01

TIME_

OF_DAY

Time, Default value TOD#00:00:00

DATE_

AND_TIME

Date and time, Default value

DT#1900-01-01-00:00:00

STRING

String of variable length, (empty string)

BYTE

8-bit pattern, default value 0

WORD

16-bit pattern, default value 0

DWORD

32-bit pattern, default value 0

–

Integer; whole number with value range

Variable Types

Keyword

Use

VAR

Local variable; only valid within the POU in which it was

declared.

VAR_GLOBAL

Global variable that is declared in a program. It is

known in this program and all POUs that were called by

this program. It must be declared as VAR_EXTERNAL in

all invoked POUs.

VAR_EXTERNAL

If a global variable is used within an FB, it must be

declared as VAR_EXTERNAL.

VAR_INPUT

If a variable is only to be read within a POU (FB, FU), it

must be declared as an input variable.The variable

must not be changed in this POU. Input variables can

be used for transferring parameters in an FU or FB.

VAR_OUTPUT

Output variable that is declared in the FB in which it is

supplied as a return value. It is made available for other

POUs.

VAR_IN_OUT

An IN_OUT variable is read by the FB, processed and

output under the same name.Since an operation on an

IN_OUT variable has a direct effect on the contents of

the transferred variable, this must not be of a type that

does not permit write operations, (e.g. INPUT or

variable with the attribute CONSTANT).

TYPE

Use the keyword “TYPE” to declare derived data types.

These data types are derived from elementary data

types.

Operand Overview

The PLC operands are displayed as directly represented variables.

Digital input

Digital output

Marker

Analog input

Analog output

Counter input

Status data (diagnostics)

Data sent to intelligent Suconet K stations

Data received from intelligent Suconet K stations

IP 1)

Digital input (direct peripheral access)

QP 1)

Digital output (direct peripheral access)

IPA 2)

Analog input (direct peripheral access)

QPA 2)

Analog output (direct peripheral access)

IPC 2)

Counter input (direct peripheral access)

1) for PS4-200 and PS4-300

2) only for PS4-300

Operand Overview

Symbols for “Size”

Symbol

Meaning

X or no

Symbol

Bit; Size 1 bit;

Default data type BOOL;

Example: %IX0.0.0.0.0 or %I0.0.0.0.0

Byte; Size 8 bit;

Default data type BYTE;

Example: %IB0.0.0.0

Word; Size 16 bit;

Default data type WORD;

Example: %QW0.0.0.2

Double word; Size 32 bit;

Default data type DWORD;

Example: %QD0.0.0.4

–

Notation

5-digit notation of Boolean, 4-digit notation of byte and word operands. The

first three digits are reserved for the topology configuration of the PLC

concerned, here shown as 0.0.0.

Examples:

Bit address of input 1.2:

Byte address of output byte 3:

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