Bo(buy) when stock price down to what happen to sl

BO - in BO I know when STOCK PRICE rise SL also rise BUT

  1. what happen when stock price go down is that last SL ALSO DOWN
    EX SBIN AT 260 SL 250 TGT 270 TRALING SL 2
  2. STOP PRICE GO 260 TO 262, 264 THE SL MOVE 252, 254
    now new SL 254 BUT what happen TO current SL when when SBIN DOWN to 262 is that SL also down to 252 or
    is still on 254

As per my knowledge it we remain 254.