Lenze DDS v2.3 Manuel d'utilisateur télécharger pdf (Page 269)

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IEC 61131-3 Operators

11-3

l DDS EN 2.3

11.2 Standard.lib-integrated IEC operators

Operator ST Operator IL Mod.IL Meaning

LEN(in) LEN String length of the operand

LEFT(str,size) LEFT size Left-hand start string (size) of string str

RIGHT(str,size) RIGHT size Right-hand start string (size) of string str

MID(str,size) MID size Segmentofsizefromstringstr

CONCAT(’str1’,’str2’) CONCAT ’ str2’ Concatenation of two strings

INSERT(’str1’,’str2’,pos) INSERT ’str2’,pos Insert string str1 in string str2 at position pos

DELETE(’str1’,len,pos) DELETE len,pos Delete segment of length len, starting at position pos of str1

REPLACE(’str1’,’str2’,len,p

os)

REPLACE

’str2’,len,pos

Replace segment of length len, starting at position pos of str1

with str2

FIND(’str1’,’str2’) FIND ’str2’ Find a segment str2 in str1

SR SR Set bistabile function block to dominant set

RS RS Reset bistable function block

SEMA SEMA FB: Software semaphore (interruptible)

R_TRIG R_TRIG FB: Rising edge detected

F_TRIG F_TRIG FB: Falling edge detected

CTU CTU FB: Up counter

CTD CTD FB: Down counter

CTUD CTUD FB: Up and down counter

TP TP FB: Pulse encoder

TON TON FB: On delay

TOF TOF FB: Off delay

RTC RTC FB: Runtime clock

For a detailed description refer associated libraries.

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Lenze DDS v2.3 Manuel d'utilisateur Page 269