Siemens SIMATIC S5 Manual page 148

IP 265
Converting a language element
You can convert a language element in a control system flowchart into another, type-conforming
language element. Language elements are type-conforming when the number and data type of their
inputs and outputs are identical.
A Comparison operation can be converted into another Comparison operation (for instance, ">" into
"<"). By the same token, a timer operation, a binary logic operation or a set/reset operation can be
converted into another operation of the same type.
Move the cursor to the language element to be converted. This language element is then
displayed in reverse video.
Select the new, type-conforming language element from the choices given on the menu line by
pressing the associated function key.
Example:
Initial situation
I 0.0
S
I 0.1
R
Inverting a binary input/output
Move the cursor to the connecting line.
Selected the "Invert" function by pressing function key <F4>.
Example:
Initial situation
>=1
I 0.0
I 0.1
EWA 4NEB 812 6130-02a
Keyboard entry
"S/R.."
F5
Q Q 0.5
Keyboard entry
Q 0.5
Programming the IP 265 with COM 265
"R"
F1
" "
F4
I 0.0
I 0.1
Result
I 0.0 R
I 0.1 S Q
Result
>=1
Q 0.5
Q 0.5
9-43