IEC 61131-3

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jiataifeng
Posts: 178
Joined: 30 Apr 2009 06:31

IEC 61131-3

Post by jiataifeng » 29 Aug 2018 02:38

texual languages

Instruction List (IL)
Structured Text (ST)
grafical languages

Function Block Diagram (FBD)
Ladder Diagram (LD)
Continous Function Chart (CFC)
Sequential Function Chart (SFC)
POU (Program Organization Unit)
Last edited by jiataifeng on 29 Aug 2018 02:55, edited 1 time in total.

jiataifeng
Posts: 178
Joined: 30 Apr 2009 06:31

Re: IEC 61131-3

Post by jiataifeng » 29 Aug 2018 02:50

LD N Make current result equal to the operand
ST N Save current result at the position of the Operand
S Put the Boolean operand exactly at TRUE if the current result is TRUE
R Put the Boolean operand exactly at FALSE if the current result is TRUE
AND N, ( Bitwise AND
OR N, ( Bitwise OR
XOR ( Bitwise exklusive OR
ADD ( Addition
SUB ( Subtraction
MUL ( Multiplication
DIV ( Division
GT ( >
GE ( >=
EQ ( =
NE ( <>
LE ( <=
LT ( <
JMP CN Jump to label
CAL CN call function block
RET CN Return from call of a function block
) Evaluate deferred operation

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