Candles[SecCode][Interval] = ds[SecCode][Interval]

  ds[SecCode][Interval] = CreateDataSource(ClassCode, SecCode, Interval)
  local function GetPrice(index)
    Candles[SecCode][Interval] = ds[SecCode][Interval]
    Indicator[SecCode][Interval][index] = func( ... )
  end
  for i = 1, ds:Size() do GetPrice(i) end
  ds:SetUpdateCallback(GetPrice)

function DataSource(class,sec,interval)
   ds[sec] = CreateDataSource(class,sec,interval)

   ds[sec]:SetEmptyCallback ()
   return ds[sec]
end

function main()
    dofile(getWorkingFolder().."\\LuaIndicators\\BB.lua")
    for sec in string.gmatch(ticker_list,"%a+") do
        DataSource(class,sec,interval)
    end
  while is_run do
    stime=getSTime()
    if stime==nil then stime=0 end

if stime>100000 and stime<184005 then --не считаем вне сессии

for sec in string.gmatch(ticker_list,"%a+") do
    toLog (log, sec)
    toLog (log, "1")
    func = BB() 
    toLog (log, "2")
    local num_candles=ds[sec]:Size()     
    toLog (log, "3")    
    line_10,_,line_3=func(num_candles, {Period=12, Metod = "SMA", VType="Typical", round=4, Shift=2}, ds[sec])
    toLog (log, "4")
    -- tbl:SetValue(line_count_table[sec],'BB_middle', line_10)
    -- tbl:SetValue(line_count_table[sec],'BB_lower', line_3)    
    --sleep (1)

дальше не сложный анализ.
end