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<h1>Architettura ScadaInterface</h1>
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<h1 id="architettura-scadainterface">🛠️ Architettura ScadaInterface</h1>
<h2 id="scopo">⚙️ Scopo</h2>
<p>Per garantire una comunicazione robusta e manutenibile tra il PLC e il sistema SCADA, è stata creata una struttura dati dedicata e unificata.<br>
Questa struttura, un’istanza di <code>ST_ScadaInterface</code>, funge da unica <em>fonte di verità</em> per tutti i dati scambiati tramite OPC UA.</p>
<p>È una struttura di tipo <strong>NJ</strong>, progettata per sfruttare la comunicazione basata su “tag”, ed è suddivisa in due parti logiche:</p>
<ul>
<li><strong>Egress</strong>: Dati che fluiscono <strong>DAL PLC ALLO SCADA</strong> (sola lettura per lo SCADA).</li>
<li><strong>Ingress</strong>: Dati e comandi che fluiscono <strong>DALLO SCADA AL PLC</strong> (scrivibili dallo SCADA).</li>
</ul>
<hr>
<h2 id="struttura-master">⚙️ Struttura Master</h2>
<p>Per prima cosa, definiamo la struttura principale che conterrà i due flussi di dati.</p>
<pre class="hljs"><code>(* Struttura master per l'interfaccia SCADA *)
TYPE ST_ScadaInterface :
STRUCT NJ
Ingress : ST_Ingress; // Dati IN ENTRATA dallo SCADA
Egress : ST_Egress; // Dati IN USCITA verso lo SCADA
END_STRUCT
END_TYPE
</code></pre>
<hr>
<h2 id="struttura-st_egress-plc-scada">⚙️ Struttura <code>ST_Egress</code> (PLC → SCADA)</h2>
<p>Questa struttura contiene tutte le informazioni di stato, le analisi di produzione e i dati macchina che il PLC rende disponibili al sistema SCADA.</p>
<h3 id="flag-di-stato-macchina">⚙️ Flag di Stato Macchina</h3>
<table>
<thead>
<tr>
<th>Nome Variabile</th>
<th>Tipo Dati</th>
<th>Descrizione</th>
</tr>
</thead>
<tbody>
<tr>
<td>IsRunning</td>
<td><code>BOOL</code></td>
<td>Flag VERO quando la macchina è in uno stato di marcia.</td>
</tr>
<tr>
<td>IsStopped</td>
<td><code>BOOL</code></td>
<td>Flag VERO quando la macchina è ferma.</td>
</tr>
<tr>
<td>IsInEmergency</td>
<td><code>BOOL</code></td>
<td>Flag VERO quando un’emergenza è attiva.</td>
</tr>
<tr>
<td>IsWaitingDownstream</td>
<td><code>BOOL</code></td>
<td>Flag VERO quando in attesa di un segnale dalla macchina a valle.</td>
</tr>
<tr>
<td>IsWaitingUpstream</td>
<td><code>BOOL</code></td>
<td>Flag VERO quando in attesa di un prodotto dalla macchina a monte.</td>
</tr>
<tr>
<td>IsAlarmActive</td>
<td><code>BOOL</code></td>
<td>Flag VERO quando un qualsiasi allarme macchina è attivo.</td>
</tr>
</tbody>
</table>
<h3 id="flag-di-handshake-e-controllo">⚙️ Flag di Handshake e Controllo</h3>
<table>
<thead>
<tr>
<th>Nome Variabile</th>
<th>Tipo Dati</th>
<th>Descrizione</th>
</tr>
</thead>
<tbody>
<tr>
<td>AckChangeRecipe</td>
<td><code>BOOL</code></td>
<td>Conferma (Ack) del PLC a un comando di cambio ricetta.</td>
</tr>
<tr>
<td>RemoteControlEnable</td>
<td><code>BOOL</code></td>
<td>Flag che indica se il controllo remoto da SCADA è abilitato.</td>
</tr>
<tr>
<td>ProductionChangeOK</td>
<td><code>BOOL</code></td>
<td>Conferma del PLC che il cambio produzione è avvenuto con successo.</td>
</tr>
<tr>
<td>RecipeChangeOK</td>
<td><code>BOOL</code></td>
<td>Conferma del PLC che il cambio ricetta è avvenuto con successo.</td>
</tr>
<tr>
<td>RecipeChangeReject</td>
<td><code>BOOL</code></td>
<td>Flag che indica che il cambio ricetta è stato rifiutato dall’Operatore.</td>
</tr>
<tr>
<td>RecipeChangePostpone</td>
<td><code>BOOL</code></td>
<td>Flag che indica che il cambio ricetta è stato rimandato dall’Operatore.</td>
</tr>
<tr>
<td>MesCommunicationFault</td>
<td><code>BOOL</code></td>
<td>Flag VERO se c’è un errore di comunicazione con il MES.</td>
</tr>
</tbody>
</table>
<h3 id="informazioni-ricetta-e-produzione">⚙️ Informazioni Ricetta e Produzione</h3>
<table>
<thead>
<tr>
<th>Nome Variabile</th>
<th>Tipo Dati</th>
<th>Descrizione</th>
</tr>
</thead>
<tbody>
<tr>
<td>ActualRecipeIndex</td>
<td><code>DINT</code></td>
<td>Indice della ricetta attualmente attiva.</td>
</tr>
<tr>
<td>ActualRecipeName</td>
<td><code>STRING[38]</code></td>
<td>Nome della ricetta attualmente attiva.</td>
</tr>
<tr>
<td>ActualProductionInfo</td>
<td><code>STRING[38]</code></td>
<td>Descrizione del lotto/ordine di produzione attuale.</td>
</tr>
<tr>
<td>ActualProductionCode</td>
<td><code>DINT</code></td>
<td>Codice del lotto/ordine di produzione attuale.</td>
</tr>
<tr>
<td>MachineStatus</td>
<td><code>DINT</code></td>
<td>Codice di stato generale della macchina (come da visualizzazione HMI).</td>
</tr>
</tbody>
</table>
<h3 id="watchdog-di-comunicazione">⚙️ Watchdog di Comunicazione</h3>
<table>
<thead>
<tr>
<th>Nome Variabile</th>
<th>Tipo Dati</th>
<th>Descrizione</th>
</tr>
</thead>
<tbody>
<tr>
<td>PlcWatchdog</td>
<td><code>DINT</code></td>
<td>Contatore di watchdog del PLC inviato allo SCADA.</td>
</tr>
</tbody>
</table>
<h3 id="strutture-dati-di-analisi">⚙️ Strutture Dati di Analisi</h3>
<table>
<thead>
<tr>
<th>Nome Variabile</th>
<th>Tipo Dati</th>
<th>Descrizione</th>
</tr>
</thead>
<tbody>
<tr>
<td>TimeAnalytics</td>
<td><code>ST_MachineTimers</code></td>
<td>Statistiche dettagliate basate sul tempo.</td>
</tr>
<tr>
<td>ProductionAnalytics</td>
<td><code>ST_ProductionAnalytics</code></td>
<td>Statistiche dettagliate basate sulla produzione.</td>
</tr>
</tbody>
</table>
<h3 id="dati-allarmi">⚙️ Dati Allarmi</h3>
<table>
<thead>
<tr>
<th>Nome Variabile</th>
<th>Tipo Dati</th>
<th>Descrizione</th>
</tr>
</thead>
<tbody>
<tr>
<td>AlarmAnalytics</td>
<td><code>ARRAY[0..1399] OF ST_AlarmAnalytics</code></td>
<td>Dati analitici per ogni singolo allarme.</td>
</tr>
<tr>
<td>TopAlarms_ByFrequency</td>
<td><code>ARRAY[0..99] OF ST_TopAlarmEntry</code></td>
<td>Classifica degli allarmi più frequenti.</td>
</tr>
<tr>
<td>TopAlarms_ByDowntime</td>
<td><code>ARRAY[0..99] OF ST_TopAlarmEntry</code></td>
<td>Classifica degli allarmi che causano più downtime.</td>
</tr>
<tr>
<td>Alarms_Packed</td>
<td><code>ARRAY[0..80] OF WORD</code></td>
<td>Array compatto per visualizzazione rapida degli allarmi.</td>
</tr>
</tbody>
</table>
<hr>
<h2 id="struttura-st_ingress-scada-plc">⚙️ Struttura <code>ST_Ingress</code> (SCADA → PLC)</h2>
<p>Questa struttura contiene tutti i comandi e i setpoint che il sistema SCADA può inviare al PLC.</p>
<h3 id="comandi-di-controllo-produzione">⚙️ Comandi di Controllo Produzione</h3>
<table>
<thead>
<tr>
<th>Nome Variabile</th>
<th>Tipo Dati</th>
<th>Descrizione</th>
</tr>
</thead>
<tbody>
<tr>
<td>ProductionChangeRequest</td>
<td><code>BOOL</code></td>
<td>Comando da SCADA per richiedere un cambio produzione/lotto.</td>
</tr>
<tr>
<td>RecipeChangeRequest</td>
<td><code>BOOL</code></td>
<td>Comando da SCADA per richiedere un cambio ricetta.</td>
</tr>
<tr>
<td>ResetCounters</td>
<td><code>BOOL</code></td>
<td>Comando da SCADA per resettare le statistiche.</td>
</tr>
<tr>
<td>RemoteStopMachine</td>
<td><code>BOOL</code></td>
<td>Comando da SCADA per arrestare la macchina da remoto.</td>
</tr>
</tbody>
</table>
<h3 id="richieste-dati-ricetta-e-produzione">⚙️ Richieste Dati Ricetta e Produzione</h3>
<table>
<thead>
<tr>
<th>Nome Variabile</th>
<th>Tipo Dati</th>
<th>Descrizione</th>
</tr>
</thead>
<tbody>
<tr>
<td>RequestRecipeIndex</td>
<td><code>DINT</code></td>
<td>Indice della ricetta richiesta.</td>
</tr>
<tr>
<td>RequestProductionQuantity</td>
<td><code>DINT</code></td>
<td>Quantità di produzione richiesta.</td>
</tr>
<tr>
<td>RequestProductionCode</td>
<td><code>DINT</code></td>
<td>Codice del lotto/ordine di produzione richiesto.</td>
</tr>
<tr>
<td>RequestProductionInfo</td>
<td><code>STRING[38]</code></td>
<td>Descrizione del lotto/ordine richiesta.</td>
</tr>
</tbody>
</table>
<h3 id="watchdog-di-comunicazione">⚙️ Watchdog di Comunicazione</h3>
<table>
<thead>
<tr>
<th>Nome Variabile</th>
<th>Tipo Dati</th>
<th>Descrizione</th>
</tr>
</thead>
<tbody>
<tr>
<td>ScadaWatchdog</td>
<td><code>DINT</code></td>
<td>Contatore di watchdog dello SCADA ricevuto dal PLC.</td>
</tr>
</tbody>
</table>
</div>
<!-- DEBUG: {"headingsLength":14} -->
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<h2 class="toc-title">On This Page</h2>
<ul class="toc-list">
<li class="toc-item toc-level-2">
<a href="#scopo" class="toc-link">⚙️ Scopo</a>
</li>
<li class="toc-item toc-level-2">
<a href="#struttura-master" class="toc-link">⚙️ Struttura Master</a>
</li>
<li class="toc-item toc-level-2">
<a href="#struttura-st_egress-plc-scada" class="toc-link">⚙️ Struttura ST_Egress (PLC → SCADA)</a>
</li>
<li class="toc-item toc-level-3">
<a href="#flag-di-stato-macchina" class="toc-link">⚙️ Flag di Stato Macchina</a>
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<li class="toc-item toc-level-3">
<a href="#flag-di-handshake-e-controllo" class="toc-link">⚙️ Flag di Handshake e Controllo</a>
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<li class="toc-item toc-level-3">
<a href="#informazioni-ricetta-e-produzione" class="toc-link">⚙️ Informazioni Ricetta e Produzione</a>
</li>
<li class="toc-item toc-level-3">
<a href="#watchdog-di-comunicazione" class="toc-link">⚙️ Watchdog di Comunicazione</a>
</li>
<li class="toc-item toc-level-3">
<a href="#strutture-dati-di-analisi" class="toc-link">⚙️ Strutture Dati di Analisi</a>
</li>
<li class="toc-item toc-level-3">
<a href="#dati-allarmi" class="toc-link">⚙️ Dati Allarmi</a>
</li>
<li class="toc-item toc-level-2">
<a href="#struttura-st_ingress-scada-plc" class="toc-link">⚙️ Struttura ST_Ingress (SCADA → PLC)</a>
</li>
<li class="toc-item toc-level-3">
<a href="#comandi-di-controllo-produzione" class="toc-link">⚙️ Comandi di Controllo Produzione</a>
</li>
<li class="toc-item toc-level-3">
<a href="#richieste-dati-ricetta-e-produzione" class="toc-link">⚙️ Richieste Dati Ricetta e Produzione</a>
</li>
<li class="toc-item toc-level-3">
<a href="#watchdog-di-comunicazione" class="toc-link">⚙️ Watchdog di Comunicazione</a>
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