This strategy will enter a Long trade when the fast MA crosses over the slow MA AND the current price is ABOVE Sma200 AND Sma200 is ascending.

It will enter a Short trade when the fast MA crosses under the slow MA AND the current price is BELOW Sma200 AND Sma200 is descending.

It will only exit on a Stop & Reverse, so there’s no SL, nor TP (but you can change this).

As with all MAs, strategies based solely on them are rarely profitable in the long run, mainly due to their lagging nature and to the fact that they are easily curvefitted (overoptimized) to best suit one’s expectations. Adding one or more indicators could be beneficial:

DEFPARAM CumulateOrders = false
Sma200 = average[200,0](close)
FastMA = average[10,0](close)
SlowMA = average[50,0](close)
L1     = FastMA CROSSES OVER  SlowMA
S1     = FastMA CROSSES UNDER SlowMA
L2     = close > Sma200
S2     = close < Sma200
L3     = Sma200 > Sma200[1]
S3     = Sma200 < Sma200[1]
Lcond  = L1 AND L2 AND L3 AND Not LongOnMarket
Scond  = S1 AND S2 AND S3 AND Not ShortOnMarket
IF Lcond THEN
   BUY 1 Contract at Market
ELSIF Scond THEN
   SELLSHORT 1 Contract at Market
ENDIF