diff --git a/Designing/WinLib/WinCalculate.lua b/Designing/WinLib/WinCalculate.lua
index 9829151..26df164 100644
--- a/Designing/WinLib/WinCalculate.lua
+++ b/Designing/WinLib/WinCalculate.lua
@@ -27,6 +27,7 @@ local XML = require( 'xml2lua')
 _G.package.loaded.XMLHandler = nil
 local XMLHandler = require( 'xml2lua_tree')
 
+local nRedisConnectionId = 0 
 
 local s_dDowelTol = 1
 local s_dSimplSolidApprox = 0.2  -- approssimazione lineare nel caso di solidi semplificati
@@ -5586,12 +5587,12 @@ local function AddHardwareForSash( nFrameId, nReturnMode, OutputKitList, OutputP
    
    local JsonQuestion = JSON:encode( Question)
    
-   local bOk = EgtRedisAsyncPublish( QuestionChannel, JsonQuestion)
+   local bOk = EgtRedisAsyncPublish( nRedisConnectionId, QuestionChannel, JsonQuestion)
    local AnswerArgs
    if bOk then
       -- EgtOutLog( 'Messaggio Redis pubblicato:' .. QuestionChannel .. ' ' .. JsonQuestion)
       EgtOutLog( 'Messaggio Redis pubblicato')
-      local bOk, Answer = EgtRedisAsyncSubscribeOneMessage( AnswerChannel, 5000)
+      local bOk, Answer = EgtRedisAsyncSubscribeOneMessage( nRedisConnectionId, AnswerChannel, 5000)
       if bOk then
          -- EgtOutLog( 'Risposta Redis ricevuta:' .. Answer)
          EgtOutLog( 'Risposta Redis ricevuta')
@@ -5654,10 +5655,17 @@ end
 -- funzione che aggiunge l'hardware
 function WinCalculate.AddHardware( nAreaId, bMachiningList, bHardwareList, bPositionList, bOptionList)
    -- connessione a Redis
-   --local bRedisConnect = EgtRedisAsyncConnect( 'redis.ufficio:26379, serviceName=devel, DefaultDatabase=6, keepAlive=180, connectTimeout=15000, syncTimeout=15000, asyncTimeout=15000, abortConnect=false, ssl=false, allowAdmin=true')
-   --if not bRedisConnect then
-   --   EgtOutLog('Errore! Impossibile connettersi con il server Redis dal Lua!')
-   --end
+   local bDisconnect = true
+   if WDG.REDISID and WDG.REDISID > 0 then
+      bDisconnect = false
+      nRedisConnectionId = WDG.REDISID
+   else
+      local bRedisConnect, nRedisConnectionId = EgtRedisAsyncConnect( 'redis.ufficio:26379, serviceName=devel, DefaultDatabase=6, keepAlive=180, connectTimeout=15000, syncTimeout=15000, asyncTimeout=15000, abortConnect=false, ssl=false, allowAdmin=true')
+      if not bRedisConnect then
+         bDisconnect = false
+         EgtOutLog('Errore! Impossibile connettersi con il server Redis dal Lua!')
+      end
+   end
    
    -- calcolo codice di ritorno, i.e. tipologie di conti da fare sulla ferramenta ( e.g calcolo lavorazioni, calcolo lista ferramenta, ...)
    local nReturnMode = 0
@@ -5679,7 +5687,9 @@ function WinCalculate.AddHardware( nAreaId, bMachiningList, bHardwareList, bPosi
    local OutputOptionList = {}
    AddHardwareRec( nAreaId, nReturnMode, OutputKitList, OutputPositionList, OutputOptionList)
    
-   --EgtRedisAsyncDisconnect()
+   if bDisconnect then
+      EgtRedisAsyncDisconnect()
+   end
    
    return OutputKitList, OutputPositionList, OutputOptionList
 end