Lenze DDS v2.3 - Manual (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 Segment of size from string str
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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