1 <?xml version="1.0" encoding="UTF-8" standalone="no"?>

     2 <Python xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.w3.org/2001/XMLSchema" xsi:schemaLocation="py_ext_xsd.xsd">

     3 <![CDATA[import time,sys,ctypes

     4 Python_to_C_Call = PLCBinary.Python_to_C_Call

     5 Python_to_C_Call.restype = ctypes.c_int

     6 Python_to_C_Call.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_int)]

     7 

     8 def MyPythonFunc(arg):

     9     i = ctypes.c_int()

    10     if(Python_to_C_Call(arg, i)):

    11         res = i.value

    12         print "toC:", arg, "from C:", res, "FBID:", FBID

    13     else:

    14         print "Failed Python_to_C_Call failed"

    15         res = None

    16     sys.stdout.flush()

    17     return res

    18 ]]>

    19 </Python>