lq812008
感谢各位帮我看看。代码如下:
FUNCTION_BLOCK AIRT
{S7_m_c:='ture'}
VAR_INPUT
X1{S7_m_c:='ture'}:REAL;
X2:REAL;
X3:REAL;
A:REAL;
END_VAR
VAR_OUTPUT
Y{S7_m_c:='ture'}:REAL;
BEGIN
IF X1>A THEN
Y:=X2;
ELSE
Y:=X3;
END_IF
END_FUNCTION_BLOCK以下是错误提示:拜托各位啦!