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入圖所示

macro_command main()
bool a
GetData(a, "Local HMI", LB, 0, 1)
if a==1 then
a=0
else
a=1
end if
SetData(a, "Local HMI", LB, 0, 1)
DELAY(500)
end macro_command

BOOL類型賦值0或者1，看你入門最多C