ExST Assignment ‘R=’ΒΆ

This assignment resets a variable. Once the value of the variable to the left of R= has become FALSE, it remains FALSE even if the operand to the right of R= goes TRUE again.

<variable1> S= <variable2>;

Example

bVar1 R= bVar2;

bVar1 obtains the value of bVar2. Once bVar1 has been set to FALSE, bVar1 remains FALSE even if bVar2 becomes TRUE again.

Hint

Multiple assignments All set and reset assignments always refer to the last term of the assignment. Example: a S= b R= fun1(par1,par2); In this case b receives the output from fun1 resulting from the reset, BUT: a does not receive the set result from b, but the set result from fun1!

See also