beautypg.com

L-force | plc designer – Lenze PLC Designer PLC Designer (R2-x) User Manual

Page 536

background image

L-force | PLC Designer

Operators and Library Modules Overview

534

DMS 3.2 EN 02/2011 TD29

Elements of the Standard.lib:

in ST

in AWL

Description

LEN(in)

LEN

String length of operand in

LEFT(str,size)

LEFT

Left inital string of given size of string str

RIGHT(str,size)

RIGHT

Right initial string of given size of string str

MID(str,size,pos)

MID

Partial string of str of given size at position pos

CONCAT('str1','str2')

CONCAT 'str2'

Concatenation of two subsequent strings

INSERT('str1','str2',pos)

INSERT 'str2',p

Insert string str1 in String str2 at position pos

DELETE('str1',len,pos)

DELETE len,pos

Delete partial string (length len), start at position
pos of str1

REPLACE('str1','str2',len,pos) REPLACE 'str2',len,pos Replace partial string of lenght len by str2, start

at position pos of str1

FIND('str1','str2')

FIND 'str2'

Search for partial string str2 in str1

SR

SR

Bistable FB is set dominant

RS

RS

Bistable FB is set back

SEMA

SEMA

FB: Software Semaphor (interruptable)

R_TRIG

R_TRIG

FB: rising edge is detected

F_TRIG

F_TRIG

FB: falling edge is detected

CTU

CTU

FB: Counts upv

CTD

CTD

FB: Counts down

CTUD

CTUD

FB: Counts up and down

TP

TP

FB: trigger

TON

TON

FB: Timer On-Delay

TOF

TOF

FB: Timer Off-Delay

RTC

RTC

FB: Real Time Clock