Step7 MicroWin calling subroutines

Hi,

Newbie question about calling subroutine
How to pass boolean to subroutine?

when im trying to call subroutine, boolean parameters are underlined as faulty. why?

My call command line:
CALL mysub, 2, 2, 2, 2, 2#1, 2#1, 2#1, Actual

---
subroutine "mysub"
IN a1:byte
IN a2:byte
IN a3:byte
IN a4:byte
In a5:bool
IN a6:bool
IN a7:bool
INOUT a8:dword
------

If i modify my call line:
-----
s #aa,1
s #bb,1
s #cc,1
CALL mysub, 2, 2, 2, 2, #aa, #bb, #cc, Actual
----
everything ok.

Subroutines

Hello,

you must use a variable with the state you need. You can use SM0.0 and SM0.1