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--- gem300_scripts [2024/02/01 14:25]
wikiadmin [E94 Service Wrapper]
+++ gem300_scripts [2025/02/28 20:17] (current)
wikiadmin
@@ Line 173: / Line 173: @@
  }
 </code>
+==== E40 Java Example ====
+=== E40 Java Using the Service wrapper calls to process a job ===
+Executing a job through E40 requires indicating to the process job the current state of the process. For example:
+<code java>
+Initialize the handlers:
+    try {
+      E39MessageHandler.addMessageHandler(equipmentController.getControllerName());
+      E40MessageHandler.addMessageHandler();
+      E94MessageHandler.addMessageHandler();
+      E87MessageHandler.addMessageHandler(2,4);
+    } catch (BadParameterException e) {
+      e.printStackTrace();
+    }
+    E40ServiceWrapper.getInstance().registerCallback(new E40Callback());
+[...]
+ /** Process a Job. */
+  protected void processJob() {
+    ProcessJob[] allProcessJobs = E40ServiceWrapper.getInstance().getAllPRJobs();
+    if ( allProcessJobs.length > 0 ) {
+      ProcessJob processJob = allProcessJobs[0];
+      processJob.allocated();
+      processJob.materialArrived();
+      wait500();
+      processJob.readyToStart();
+      while ( processJob.getPrJobState() == ProcessJobStates.WAITINGFORSTART.getStateId() ) {
+        wait500();
+      }
+      wait500();
+      try {
+        processJob.complete();
+        processJob.materialDeparted();
+      } catch (InvalidStateTransitionException e) {
+        e.printStackTrace();
+      }
+    }
+  }
+</code>
+Notification of changes in process are sent through the
+<code java>
+import com.ergotech.secs.e39.E39MessageHandler;
+import com.ergotech.secs.e40.E40MessageHandler;
+import com.ergotech.secs.e40.E40ServiceWrapper;
+import com.ergotech.secs.e40.E40CallbackInterface;
+import com.ergotech.secs.e40.ProcessJob;
+import com.ergotech.transsecs.secs.TransSecsController;
+public class E40Callback {
+    public E40Callback() {
+        System.out.println("Register GEM300");
+        TransSecsController controller = TransSecsController.findController("GEM300Tool");
+        } while (controller == null);
+        try {
+            E39MessageHandler.addMessageHandler(controller.getControllerName());
+            E40MessageHandler.addMessageHandler();
+        } catch (Exception e) {
+            System.out.println(e);
+        }
+        E40ServiceWrapper.getInstance().registerCallback(new E40CallbackInterface() {
+            @Override
+            public void prStateChange(ProcessJob prJob, int oldState, int newState) {
+                System.out.println("State Change for " + prJob.getPrJobId() + " From: " +
+                        ProcessJob.getStateName(oldState) + " to " + ProcessJob.getStateName(newState));
+             }
+            @Override
+            public void prJobCreate(ProcessJob prJob) {
+                System.out.println("Job Creation of " + prJob.getPrJobId() + " permitted");
+             }
+            @Override
+            public void prSetRecipeVariable(ProcessJob prJob, List<?> recVarList) {
+                if (recVarList != null) {
+                    for (Object recVar : recVarList) {
+                        System.out.println("Host Requested Recipe Variable \"" + recVar.toString() + "\" on " + prJob);
+                    }
+                }
+            }
+            @Override
+            public void prSetMtrlOrder(int prCurrentMtrlOrder, int prNewMtrlOrder) {
+                // Handle material order settings
+            }
+            @Override
+            public void prCommandCallback(ProcessJob prJob, String prCmd, List<?> prCmdParameterList) {
+                System.out.println("Host Requested \"" + prCmd + "\" on " + prJob + " with parameters " + prCmdParameterList);
+                String[] cmds = {"NONE", "ABORT", "STOP", "CANCEL", "PAUSE", "RESUME", "STARTPROCESS"};
+                int cmdId = Arrays.asList(cmds).indexOf(prCmd);
+                // Send the parameters
+                if (prCmdParameterList != null) {
+                    for (Object param : prCmdParameterList) {
+                        System.out.println("Host Requested Parameter \"" + param.toString() + "\" on " + prJob);
+                    }
+                }
+            }
+        });
+        System.out.println("E40 Registered");
+    }
+}
+</code>
+==== E40 Python Example ====
+<code python>
+#!/usr/bin/python3
+import jpype
+from jpype import JProxy, JArray, JInt
+import jpype.imports
+from jpype.types import *
+jpype.startJVM(classpath=['.', './GEMTool.jar'])
+# Importing the necessary Java classes
+from com.ergotech.secs.e39 import E39MessageHandler
+from com.ergotech.secs.e40 import E40MessageHandler, E40ServiceWrapper, E40CallbackInterface, ProcessJob
+from com.ergotech.transsecs.secs import TransSecsController
+from java.lang import Thread
+# Create the callback interface using a proxy
+class E40CallbackImplementation(E40CallbackInterface):
+    def prStateChange(self, prJob, oldState, newState):
+        print(f"State Change for {prJob.getPrJobId()} From: {ProcessJob.getStateName(oldState)} to {ProcessJob.getStateName(newState)}")
+        # Send the new state for the process job to the PLC
+        # /GEM300PLC/ProcessJobId->setStringValue(prJob.getPrJobId());
+        # /GEM300PLC/CurrentProcessJobState->setIntValue(newState);
+    def prJobCreate(self, prJob):
+        print(f"Job Creation of {prJob.getPrJobId()} permitted")
+        # Indicate that this job is not allocated
+        # /GEM300PLC/Allocated->setIntValue(0);
+        # Record the id
+        # /GEM300PLC/ProcessJobId->setStringValue(prJob.getPrJobId());
+    def prSetRecipeVariable(self, prJob, recVarList):
+        if recVarList is not None:
+            for counter in range(recVarList.size()):
+                print(f"Host Requested Recipe Variable \"{recVarList.get(counter).getStringValue()}\" on {prJob}")
+    def prSetMtrlOrder(self, prCurrentMtrlOrder, prNewMtrlOrder):
+        # Set the order in which process jobs should be processed
+        pass
+    def prCommandCallback(self, prJob, prCmd, prCmdParameterList):
+        print(f"Host Requested \"{prCmd}\" on {prJob} with parameters {prCmdParameterList}")
+        cmds = ['NONE', 'ABORT', 'STOP', 'CANCEL', 'PAUSE', 'RESUME', 'STARTPROCESS']
+        # First indicate which process job the command is being executed on
+        # /GEM300PLC/ProcessJobId->setStringValue(prJob.getPrJobId());
+        if prCmdParameterList is not None:
+            for counter in range(prCmdParameterList.size()):
+                print(f"Host Requested Parameter \"{prCmdParameterList.get(counter).getStringValue()}\" on {prJob}")
+        # Get the index of the command
+        cmdId = cmds.index(prCmd)
+        # /GEM300PLC/PrCmd->setIntValue(cmdId);
+# Instantiate the callback
+E40Callback = E40CallbackImplementation()
+# Main Python code
+print("Register GEM300")
+controller = None
+while controller is None:
+    Thread.sleep(50)  # wait 50 ms
+    controller = TransSecsController.findController("GEM300PLCTool")
+try:
+    E39MessageHandler.addMessageHandler(controller.getControllerName())
+    E40MessageHandler.addMessageHandler()
+except Exception as e:
+    print(e)
+# Register the callback
+E40ServiceWrapper.getInstance().registerCallback(E40Callback)
+print("E40 Registered")
+</code>
 ==== E94 ====
@@ Line 273: / Line 459: @@
       // carrier has departed
       e87ServiceWrapper.carrierDeparted(carrier.getLoadPortId(), carrier.getCarrierId());
+</code>
+The most commonly used methods to manage an E87 carrier are contained in the Facade interface:
+<code java>
+package  com.ergotech.secs.e87;
+import com.ergotech.secs.SecsException;
+import com.ergotech.secs.SecsFormat00;
+import com.ergotech.secs.e39.InvalidStateTransitionException;
+import com.ergotech.secs.e87.E87ServiceWrapper.CMStatus;
+import com.ergotech.vib.exceptions.BadParameterException;
+/** This implements the E87 services. It is normally called from E39. */
+public interface E87ServiceWrapperFacadeInterface {
+  /** Creates the load port object for the specific id.
+   * @param loadPortId the id of the load port to create
+   * @param readyForService true if the load port is ready for service, otherwise false.
+   * If this parameter is true then the load port will transition to "IN SERVICE"
+   * and so to "READY TO LOAD" as soon as it is created.
+   * @return a new LoadPort
+   * @throws BadParameterException thrown if a load port with the given id already exists.
+   */
+  public void createLoadPort(int loadPortId, boolean readyForService)throws BadParameterException;
+  /** This service shall associate a CarrierID to a load port and shall cause
+   * the load port to transition to the RESERVED state.
+   * @param portId the port id where the carrier is expected.
+   * @param carrierId the expected carrierID.
+   * @return CMStatus information concerning the result of the service
+   */
+  public CMStatus bind ( int portId, String carrierId);
+  /** This service cancels a CarrierID to load port association and shall cause
+   *  the load port to transition to the NOT RESERVED state.
+   * @param loadPortId the portID for which to cancel the load port to carrier
+   * association.  Either PortID or CarrierID must be specified.
+   * @param carrierId the CarrierId for which to cancel the load port to carrier
+   * association.  Either PortID or CarrierID must be specified.
+   * @return information concerning the result of the service
+   */
+  public CMStatus cancelBind ( int loadPortId, String carrierId );
+  /** This service shall Cancel the current carrier related action, and the
+   * production equipment shall return the carrier to the unload position
+   * of the load port.
+   * @param carrierId the carrierID to cancel
+   * @param portId the PortID where the carrier object is located.  This
+   * parameter is not required if the carrier object has previously been
+   * instantiated.
+   @return information concerning the result of the service
+   */
+  public CMStatus cancelCarrier ( int portId, String carrierId);
+  /** This service shall Cancel the current carrier related action,
+   * and the production equipment shall return the carrier to the unload
+   * position of the load port.
+   * @param portId any carrier that exist on the load port specified shall be
+   *  made ready for unloading.
+   * @return information concerning the result of the service
+   */
+  public CMStatus cancelCarrierAtPort ( int portId );
+  /** Create a carrier.  This can be mocked for unit testing.
+   * @throws BadParameterException thrown if a Carrier with the given ID already
+   * exists.
+   * @throws SecsException thrown if the properties list contains a slot map
+   * or a content map who's size does not match the capacity of the carrier.
+   */
+  public Carrier createCarrier (String carrierId, int loadPortId,  SecsFormat00 propertiesList, int transition ) throws BadParameterException, SecsException;
+  /** Stores the callback object.
+   * @see com.ergotech.secs.e87.E87Interface#registerCallBack(com.ergotech.secs.e87.E87CallbackInterface)
+   */
+  public void registerCallBack(E87CallbackInterface callback);
+  /** Attempt the state transition on the port.  The port is not checked for
+   * validity and an attempt to call this method on an invalid port will cause
+   * a null pointer exception.
+   */
+  public void setLoadPortTransferState(int port, int stateTransition) throws InvalidStateTransitionException;
+  /** Return the transfer state of the port.  The port is not checked for
+   * validity and an attempt to call this method on an invalid port will cause
+   * a null pointer exception.
+   * @see com.ergotech.secs.e87.E87Interface#getLoadPortTransferState(int)
+   */
+  public int getLoadPortTransferState(int port);
+  /** Attempt the state transition on the port.  The port is not checked for
+   * validity and an attempt to call this method on an invalid port will cause
+   * a null pointer exception.
+   */
+  public void setLoadPortAccessState(int port, int state) throws InvalidStateTransitionException, SecsException;
+  /** Returns the current access state of the port.  The port is not checked for
+   * validity and an attempt to call this method on an invalid port will cause
+   * a null pointer exception.
+   * @see com.ergotech.secs.e87.E87Interface#getLoadPortAccessState(int)
+   */
+  public int getLoadPortAccessState(int port);
+  /**
+   * Change the carrier access status.  There are three states:<p>
+   *   begin=0<p>
+   *   complete=1<p>
+   *   stopped=2<p>
+   * The carrier is not checked for validity and an attempt to access an invalid
+   * carrier will result in a null pointer exception.
+   * @throws InvalidStateTransitionException thrown if the access attempt is invalid
+   * @throws SecsException thrown if the status is an invalid request.
+   */
+  public void accessCarrier(String carrierID, Carrier.CarrierAccessE87State state) throws InvalidStateTransitionException, SecsException;
+  /** Request to put the port in service.  The port is not checked for
+   * validity and an attempt to call this method on an invalid port will cause
+   * a null pointer exception.
+   * @throws InvalidStateTransitionException
+   * @see com.ergotech.secs.e87.E87Interface#getLoadPortAccessState(int)
+   */
+  public void requestInService(int port) throws InvalidStateTransitionException;
+  /** Request to put the port in service.
+   * The port is not checked for validity and an attempt to call this
+   * method on an invalid port will cause a null pointer exception.
+   * @throws InvalidStateTransitionException
+   * @see com.ergotech.secs.e87.E87Interface#requestOutOfService(int)
+   */
+  public void requestOutOfService(int port) throws InvalidStateTransitionException;
+   /**
+   * The application will invoke this when a carrier has arrived at a given port,
+   * after it has read the carrier id.
+   *
+   * @param carrierId
+   * @param port The load port.  The port is not checked for validity and an
+   *             attempt to call this method on an invalid port will cause a
+   *             null pointer exception.
+   * @param	readOK the carrier id read is valid.
+   * @param bypassReadId if this is true, the carrierID and readOK flags
+   *        are ignored and processing continues with the carrier that is at the
+   *        provided port.
+   * @return 0:verified, 2:waiting for host proceed (or cancel), 3: duplicate id
+   * @throws InvalidStateTransitionException
+   * @throws BadParameterException
+   */
+  public int carrierArrived(String carrierId, int port, boolean readOK, boolean bypassReadId, boolean hostVerification ) throws InvalidStateTransitionException, BadParameterException;
+  /** When the carrier arrives, the LoadPort may already be in the "Transfer Blocked" state (eg as part of E84).
+   * This method will check the current state of the load port.  If it is not in "Transfer Blocked" it will attempt
+   * the transition 6.  If that transition is invalide, the method will throw.
+   *
+   * @param loadPort the load port on which to execute the transition.
+   * @throws InvalidStateTransitionException thrown if load port transition 6 is not a valid transition.
+   */
+  public void conditionalLoadPortTransition6(LoadPort loadPort) throws InvalidStateTransitionException;
+  /** When the carrier departs, the LoadPort may not be in the "Transfer Blocked" state (eg as part of E84).
+   * This method will check the current state of the load port.  If it is not in "Transfer Blocked" it will attempt
+   * the transition 6.  If that transition is invalide, the method will throw.
+   *
+   * @param loadPort the load port on which to execute the transition.
+   * @throws InvalidStateTransitionException thrown if load port transition 6 is not a valid transition.
+   */
+  public void conditionalLoadPortTransition8(LoadPort loadPort) throws InvalidStateTransitionException;
+  /** Execute transition21 to indicate that the carrier has departed.  This also destroys the
+   * carrier instance.
+   * Set the carrier to null to indicate that it has departed.
+   * The port is not checked for validity and an attempt to call this
+   * method on an invalid port will cause a null pointer exception.
+   * @throws InvalidStateTransitionException
+   * @see com.ergotech.secs.e87.E87Interface#carrierDeparted(int)
+   */
+  public void carrierDeparted(int port, String carrierId ) throws InvalidStateTransitionException;
+  /**
+   * The port is not checked for validity and an attempt to call this
+   * method on an invalid port will cause a null pointer exception.
+   * @throws InvalidStateTransitionException
+   * @see com.ergotech.secs.e87.E87Interface#carrierDeparted(int)
+   */
+  public void carrierDeparted(int port) throws InvalidStateTransitionException;
+  /** Cancel the carrier at the port.
+   * The port is not checked for validity and an attempt to call this
+   * method on an invalid port will cause a null pointer exception.
+   * @throws InvalidStateTransitionException
+   */
+  public void cancelCarrier(int port) throws InvalidStateTransitionException;
+  /** Returns all carriers
+   * @return  an array of all carriers.
+   */
+  public Carrier[] getAllCarriers();
+  /** Return the carrier instance for the ID, or null if the carrier does not exist.
+   *
+   * @param carrierId the carrier id
+   */
+  public Carrier getCarrier ( String carrierId );
+}
 </code>