Having created and configured an enterprise server instance with Mainframe Subsystem Support for the ACCT application, you can now use a TN3270 Mainframe emulator to run it. 
	 
 
	 
      If you have Micro Focus Rumba 8.3 or later installed on your machine and licensed (for example, if you have installed Rumba as part of your 
		Enterprise Developer installation), the default TN3270 Mainframe emulator is a TN3270 Mainframe Rumba display embedded in the IDE. 
	 
 
	 Configuring the TN3270 Properties
 
		 
		Ensure that the IDE is configured to use the embedded Rumba emulator to run mainframe applications: 
		
 
		 
		  - In the IDE, click 
			 Window > Preferences. 
		  
- Expand 
			 Micro Focus > Enterprise Server, and click 
			 TN3270. 
		  
- Ensure that 
			 Enable display, 
			 Rumba (Embedded) and 
			 Connect automatically are all selected. 
		  
- Click 
			 OK. 
		  
Open the 
		  Rumba Mainframe Display View
 
		 
		Now that you have configured an enterprise server and have associated the server with your CICS project, you can start the 
		  Rumba Mainframe Display view as follows: 
		
 
		 
		  - Ensure that the ACCT server is running and that it is associated with your project. 
		  
- Right-click the ACCT project in 
			 COBOL Explorer, and click 
			 Enterprise Server > Show TN3270 Display. 
			 This opens the 
				Rumba Mainframe Display view inside the IDE and connects it to the ACCT application running in the ACCT enterprise server. 
			  
Note: If the embedded 
		  
TN3270 Rumba Mainframe Display view is not available, for example, if you are using an older version of Rumba which does not support integration with 
		  
Enterprise Developer, you can start the Rumba Desktop application outside of the IDE and connect it to the ACCT server. 
		  
First, you need to find out which TN3270 port your ACCT server is using (the server must be running): 
		  
 
		   
			 - In the IDE, right-click 
				Micro Focus Servers in Server Explorer and click 
				Administration. 
			 
- On the homepage of Enterprise Server Administration, click 
				Edit on the row of the ACCT server. 
			 
- Click the 
				Listeners tab and make a note of the TN3270 port number that the server uses. 
			 
Then, to connect Rumba Desktop to the ACCT server, use a host name of 
			 127.0.0.1 and the TN3270 port number you wrote down earlier to connect Rumba Desktop to the ACCT enterprise server. 
		  
 
		 
 
	 Clear the CESN login screen
		
		
		  - Clear the CESN login screen as security is not enabled - in Micro Focus Rumba you need to press 
			 CTRL+SHIFT+Z. 
		  
Initialize the VSAM file of the application
 
		 
		The first time you connect to the ACCT server you also need to initialize the application VSAM file as follows: 
		
 
		 
		  - Type 
			 CFCR ACCTFIL and press 
			 Enter to initialize the VSAM files for the application. 
			 You should receive a message indicating that the file was successfully created. 
			  
If the ACCTFIL VSAM was previously initialized, a message appears explaining that the ACCTFIL already exists. This might be the case, especially if you have previously run this tutorial. 
		
 
		Clear the screen of the emulator and run the application as described earlier in this tutorial. 
		
 
	 Start the CICS Transaction
 
		 
		 
		- Clear the CESN login screen as security is not enabled - in Micro Focus Rumba you need to press 
		  CTRL+SHIFT+Z. 
		
- Enter 
		  ACCT. 
		    
 
Add Two Records
 
		 
		 You will use the records you create here later on in the tutorial. 
	 
 
		 
		- Tab to the 
		  REQUEST TYPE field and type 
		  A. 
		
- In the 
		  ACCOUNT field, type 
		  11111. 
		
- Press 
		  Enter. 
		
- Complete the fields on the 
		  NEW RECORD screen as follows, pressing the 
		  Tab key to advance from one field to another. 
		  Note: 
			 
				- Of the three 
				  ADDRESS fields, complete only the first two.
				
- Screen fields not represented in this table are not mandatory and can be ignored.
				
 
  
				 
				 
				 
				   
					 | SURNAME | Washington |   
					 | FIRST | George |   
					 | TITLE | Pres |   
					 | TELEPHONE | 7037802000 |   
					 | ADDRESS | Mt. Vernon Estate |   
					 |  | Mt. Vernon, VA 22121 |   
					 | NO. CARDS ISSUED | 1 |   
					 | DATE ISSUED | 07 04 76 |   
					 | REASON | N |   
					 | CARD CODE | 1 |   
					 | APPROVED BY | JF |  
 
- Press 
		  Enter. 
		
- Tab to the 
		  REQUEST TYPE field and type 
		  A. 
		
- In the 
		  ACCOUNT field, type 
		  11112 and press 
		  Enter. 
		
- Repeat step 
		  4, substituting the following data: 
		  
 
				 
				 
				 
				   
					 | SURNAME | Jefferson |   
					 | FIRST | Thomas |   
					 | TITLE | Pres |   
					 | TELEPHONE | 4349849800 |   
					 | ADDRESS | Monticello |   
					 |  | C'sville, VA 22902 |   
					 | NO. CARDS ISSUED | 3 |   
					 | DATE ISSUED | 07 04 76 |   
					 | REASON | N |   
					 | CARD CODE | 1 |   
					 | APPROVED BY | JF |  
 
- Press 
		  Enter to return to the Menu. 
		
Display a Record
 
		 
		 
		- Tab to the 
		  REQUEST TYPE field. 
		
- Type 
		  D to display a record. 
		
- In the 
		  ACCOUNT field, type 
		  11111. 
		
- Press 
		  Enter. 
		    
 
- Clear the screen of your TN3270 emulator to exit the application.