SMB MAT-LC-C Series User Manual page 55

Operator and Qualifier Meaning
LD N make the current value equal to the operand
ST N saves the current value at the operand's place
S Set the Boolean operand to TRUE when the current value is TRUE
R Set the boolean operand to FALSE when the current value is TRUE
AND N，（ Bitwise logical operator "and"
OR N， （
Bitwise logical operator "or"
XOR N，（ Bitwise logical operator "exclusive or"
ADD （
Addition
SUB（ Subtraction
MUL（ Multiplication
DIV（ Division
GT（ >
GE（ >=
EQ（ =
NE（ <>
LE（ <=
LT（ <
JMP CN Jump to label
CAL CN Caller function block
RET CN Leave the POU and return to where it was called
) To perform a
delayed operation
Click here for a list of all IEC operators.
Example: Program written with qualifiers
LD TRUE (* load TRUE into accumulator*)
ANDN BOOL1 (*"AND" after performing AND and inversion of BOOL1 variable *)
JMPC mark (*When the above result is TRUE, jump to the label "mark" *)
LDN BOOL2 (*save the reverse of BOOL2 *)
ST ERG (*save BOOL2 in ERG *)
Lable:
LD BOOL2 (*Save the value of BOOL2 *)
ST ERG (*save BOOL2 in ERG *)
It is also possible to put a parenthesis after an operation in IL. The value in parentheses is
considered an operand. E.g:
LD 2
MUL 2
ADD 3
Erg
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