1. Getting Started with Fischertechnik LLWin 3.03

2. LLWin 3.02 Index Page Function Blocks Subprograms Editing Commands
Interface not connected
Downloading
Copying Subprograms
Variables for Counting Impulses
Analog Inputs (EX, EY)
Using Formulas
Menu Commands
Setting the system up
Starting a new program

3. What you will need to get started
LLWin 3.02 Software
Computer
Interface
Power supply
Serial Cable
Fishertechnik Basic Building Blocks

4. Lets take a look

5. Setting up the System Connecting the interface and the computer
Using the provided serial cable connect the interface and computer together

6. Setting up the Software
Under options Select Setup Interface
Change the port setting

7. Check Interface
Use this to test connections between computer and model.
Check Output Devices
M1 –M4
Check Digital Input Devices
E1 – E8
Check Analog Input Devices
EX & EY
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8. Starting a “New” project
Go to Projects and select new

9. Starting a “New” project
The Start and Stop Function Blocks begin and end a program.

10. Starting a “New” project
When Function Blocks are connected, a Flow Chart
is created.
This Flow Chart is the program that runs the instruction sets [and fischertechnik model].
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11. Starting a “New” project
Function Blocks

12. Function Blocks Output Input Edge Position Start End Reset
Emergency Stop
Terminal
Display
Message
Show Values
Variable +/-1
Assignment
Compare
Beep
Wait
Text
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13. Function Blocks
Outputs

14. Function Blocks
Outputs
Electromagnet
Lamp
Motor

15. Function Blocks Outputs
You switch one of the inputs M1-M4 of the interface using the output block (a motor, Lamp or Electromagnet can be connected
You must select which output you want to use in the “Type” dialog field
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16. Function Blocks
Inputs

17. Function Blocks
Inputs
Photo-Transistor
Switch
Reed Contact

18. Function Blocks Inputs
The “Input” function block queries the state of a digital input E1-E8 on the interface. They may be a Pushbutton switch, Photo-transistor, or a Reed contact.
A digital input can only have one of two states, 0 or 1.
Examples: Pushbutton switch Pushed or not pushed
Photo-transistor Light or Dark
Reed Contact Switched or not switched
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19. Function Blocks
Edge

20. Function Blocks
Edge
The Edge function waits until a digital input switches either from 0 to 1 or from 1 to 0. This transition is called an “Edge”.
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21. Function Blocks
Position

22. Function Blocks Position
The position function block counts impulses at a digital input until the desired result is reached. Each edge at the input is counted, i.e., if a button is pushed and then released, two inputs are counted.
The current number value is stored in the counter variable. If you activate the “Use standard counter” button in the dialog box, a counter Z1-Z16 is assigned automatically to a digital input E1-E16

23. Function Blocks Position BACK The input Counter Result
Counting Direction
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24. Function Blocks
Start

25. Function Blocks
Start
A flowchart always begins with a start function block.
***If this block is missing at the beginning, the flow chart is not processed***
If a project has several flowcharts, each of them must contain a start block. The different flowcharts are then started simultaneously.
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26. Function Blocks
End

27. Function Blocks
End
If a flowchart should be ended, you connect the output of the last block with the End block. A flowchart sequence can be ended at different spots using the End function block. But it is also possible to connect several outputs with one single End blocks. But it is possible that a flowchart sequence is a continuous loop and does not contain any End Icon.
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28. Function Blocks
Reset

29. ***Only one Reset block may be used in a project***
Function Blocks
Reset.
The Reset function block resets all sequences of a project to the start as soon as the condition entered in the dialog box has been fulfilled.
*** The Reset block is placed on the programming surface with out connection lines to the other blocks***
***Only one Reset block may be used in a project***

30. Function Blocks
Reset.
You enter the condition, which triggers the reset, in the dialog box when you insert the block. A simple Reset condition can be “E1”, for example. Then the Reset is triggered as soon as this condition is fulfilled, i.e., E1 becomes 1.
The program will start at the beginning as soon as the condition no longer applies, i.e., E1 becomes 0 again.
***Consequently, a project that is running on the intelligent interface in download mode without connection to a PC can be stopped and restarted via a digital input, for example, without the necessity of you having to delete it.***

31. Function Blocks
Reset.
A mathematic formula can be entered as a condition in the dialog box, e.g., Var. 5 = 6. The comparison operations, the logical links and the parentheses can be clicked directly in the help for edit of the dialog box. Maximum length of a formula is 40 characters.
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32. Function Blocks
Emergency Stop

33. ***Only one Stop Block may be used in a project***
Function Blocks
Emergency Stop
The (Emergency) Stop function block switches off all outputs at the interface when it is activated.
***Only one Stop Block may be used in a project***
It is setup the same way as the Reset Block
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34. Function Blocks
Terminal

35. Function Blocks Terminal
The terminal function block serves to display and enter specific values during the program operation.
It is also placed on the programming surface without connection lines to the other blocks.

36. Function Blocks Terminal Uses Output Display Input Variable Display
Text Display
Emergency Off Switch
Terminal Parameters EA – ED

37. Function Blocks Terminal BACK Outputs Analog Inputs Message block
Presentable inputs
10 Digital Switches
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38. Function Blocks
Display

39. Function Blocks Display
The Display function block serves to display a value, a variable or the inputs EX – EY or EA – ED on one of the two displays of the terminal. When you insert the block, you select in the function dialog box which of the two displays DIS1 or DIS2 you want to use and which value should be shown.
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40. Function Blocks
Message

41. Function Blocks Message
Displays messages up to 17 characters as text with the ability to change colors.
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42. Function Blocks
Show Values

43. Function Blocks Show Values
This block shows the current value of a variable when the program is in online mode. The block is placed on the programming surface without connection lines to other blocks.
You enter in the dialog box which variables (VAR1-99, Z1-Z16) should be shown. In addition to variable values, the values of digital and analog inputs as well as the current values of parameter EA-ED can be output.
***It is also possible to show another variable in the block while the program is running. To do this, you call the dialog using the mouse button on the left and change the Variable***
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44. Function Blocks
Variable

45. Function Blocks Variable
You can increase and decrease the value of a variable by one using this function block. You enter which variable should be processed in the dialog fields. The variables VAR1-99 as well as the standard counters Z1-Z16 are available. You can also select whether the value should be increased or decreased by one. This counter direction is also displayed in the icon of the block
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46. Function Blocks
Assignment

47. Function Blocks Assignment
A specific value can be assigned to a variable VAR1-99 or a counter Z1-Z16 using the Assignment function block.
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48. Function Blocks
Compare

49. Function Blocks Compare
You enter the condition in the Compare function block. Depending on weather the condition is fulfilled, the flowchart branches to the right or is continued at the lower output of the block. The numbers 0 and 1 at the output stand for the “Condition fulfilled” and the “Condition not fulfilled”
*** The condition is entered in the dialog box as a formula e.g., Var1=300***
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50. Function Blocks
Beep

51. ***Sounds will not work if the program is downloaded***
Function Blocks
Beep
The beep function block emits a signal tone via the PC speaker. The sound level and length can be set in the dialog box.
***Sounds will not work if the program is downloaded***
The sound may last up to 5 seconds and range from 50 to 10000Hz or as a note from c-b in 5 octaves.
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52. Function Blocks
Wait

53. ***Maximum wait time is 999.99seconds***
Function Blocks
Wait
You can program a delay in a flowchart with the “Wait” function block. The delay begins when the function block is reached in the flowchart sequence.
***Maximum wait time is seconds***
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54. Function Blocks
Text

55. Function Blocks
Text
The text entered here can be placed as commentary at any place on the worksheet, e.g., for program documentation.
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56. Editing Commands Function Keys
Switching to the different editing modes
Keyboard combinations for editing blocks and connections
Zoom
Check Interface
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57. Editing Commands Function Keys
F1 Direct call to online help for the operator.
CTRL+F1 When the cursor is about a block, this calls the online help for it directly.
F6 Switches to the main program for editing.
F7 Switches to a subprogram for editing.
F8 Switches to the init mode.
F9 Stop the control program
F10 Save the project
Shift+F5 Cascade windows
Shift+F4 Tile windows
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58. Editing Commands Switching to different editing modes
You can switch between the different editing modes with the digits 1-5
Insert blocks
Delete blocks
Replace blocks
Draw lines
Delete lines
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59. Editing Commands
Keyboard combination for editing blocks and connections
CTRL+I. Mouse button Insert blocks in edit mode. This makes it possible to select individual blocks Draw lines in editing mode. This makes it possible to move lines.
Shift+I. Mouse button Select a group of blocks
CTRL+A Select all
CTRL+U Undo selection
CTRL+X Cut selected blocks
CTRL+C Copy selected blocks
CTRL+V Insert copied blocks
DEL Delete selected blocks
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60. Editing Commands
Zoom
You can change the zoom factor very quickly with the + and – keys on the keyboard and consequently enlarge or reduce the size of the display.
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61. Editing Commands Check Interface
You can activate the output for the length of the mouse click with the right or left button. If you first press the CTRL key and then the output, it stays on. Clicking it again switches it off.
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62. Downloading Downloading your program to your interface
Select “Run” in the pull down menu
Select Download, this will take only a few seconds
After the download has finished it is on the interface
Start the program from the computer and then disconnect the serial cable
If the interface loses power the program will be lost from the interface
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63. Subprograms
A “Subprogram” is a self-contained algorithm that is inserted in a main program. The advantage of a subroutine is that it allows a programmer to write just once an algorithm that will be used two or more times in the complete program.
The subprograms represented by one block in the main program, but is comprised of many function blocks hidden at a different level.

64. Subprograms
LLWin 3.0 has a template for a subprogram or ”subroutine” named “UP1”. UP stands for subprogram.
This block contains two icons for the computer program to “enter”(the line at the top of the block) and “exit” ( the line at the bottom of the block) the subprogram. You can use this template or create your own.

65. Subprograms Creating your own Subprogram
From the EDIT menu Click the Subprogram Command
Type the name of the subprogram. In this case “BLACK”
Click “OK” and we have created a subprogram and are now one level below the main program.
This is your worksheet on which you can now create the flowchart for the subprogram

66. Subprograms In the Windows menu click the”Tile”command
Two windows appear in the work area. A window with the name “$MAIN”, which contains the control program(main program) and a window for our subprogram named “BLACK”.

67. Subprograms
Paste the input and output by selecting the SUBIN and SUBOUT blocks for the Function Blocks toolbox.

68. Subprograms
Add the Function blocks necessary to complete the subprogram and save.
The black subprogram runs the motor over to the
side(black bin) for one second, then stops, and
brings the sensor back to check the next marble

69. Subprograms
If you look at the Function Blocks toolbox under “Subprograms” you will see that the block is there but it has no connection lines.
Without these you cannot connect
the block to the program.
You must edit the Subprogram
Function Block

70. Subprograms SUBPROGRAM EDITING
Under the Subprogram menu click on “Design”
After you click a new window
opens in which you can change
the features of the selected
subprogram block.

71. Subprograms
In the Design window the SubIn and SubOut function blocks which you pasted in the flowchart are displayed as circles on the left in the table.
Place the cursor on them(keeping the left mouse button pressed down) and drag them into the desired position on the function block frame. These represent the connections, which connect with the Main program
Close the editing window by
clicking on the “X”

72. Subprograms
You can place multiple SubIn and SubOut Function blocks on one subroutine so multiple connections can be made in the Main Program. Once you master subprograms your Main program could look like this.
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73. Copying Subprograms
You can copy a subprogram from one program(project) to another program(project).
Run two concurrent sessions of LLWin This allows you to switch between the two sessions to Copy from one and Paste to the other.
From the EDIT menu Click the
Subprogram command and
choose the subprogram to be copied.
From the EDIT Menu
Click the Select All command
Click
Copy

74. Copying Subprograms
Open the second sessions of LLWin Create a new subprogram with the same name as in the first program.
From the EDIT menu Click
Paste
From the EDIT menu Click the
Subprogram command and
choose the subprogram just
created.
It should be a blank screen
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75. Interface Troubleshooting
No Connection to interface?
In the case of this message make sure:
-You have selected the right port (COM1 or COM2) for serial interfaces and (LPT1 or LPT2) for parallel interfaces
-Do you have Power
-Is the port working at all (Refer to page 82 of the handbook)
Double check the setup
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76. Variables for counting impulses
Variables are often used for counting. We use counting to measure a path of movement electronically. e.g. The movement of the gripper on a robotic arm. It needs to open and close the exact same way each and every time. This can be done in LLWin 3.0 using a Position block, Switch, and an impulse wheel (a geared wheel with 4 teeth, on revolution will count to 4). This impulse wheel is place so it will trigger the switch and create a counting device. (this is further explained on page 103 in the LLWin 3.0 handbook)
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77. Analog Inputs
EX and EY are the two analog input spots on the interface, they will read a range from 0 to 1024
You may use a Potentiometers, Thermisitor, Photo-transistors or Inferred device.
Use the check interface to pre-read these values

78. Analog Inputs
Check Interface
Analog Displays
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79. Using Formulas They may be used in Compare, Stop, and Reset Blocks
Digital Inputs (E1-E8)
The simplest condition is when looking whether the state is 0 or 1
Variables (Var1- Var99) and Position blocks (Z1- Z16)
Analog Inputs (EX, EY)
Terminal Parameters (EA, EB, EC, ED)
Integer operands from –32567 to

80. Using Formulas Comparison Operators = Equals < Smaller than
> Greater than
<= Smaller or equal to
>= Greater or equal to
e.g. Var. 1 >= 567

81. Using Formulas
Various expression can be linked logically with AND, OR, and NOT.
e.g. E1 AND E2 AND NOT E3
Var.1=5 OR Var.2=3
Finally you may use parentheses
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82. Menu Commands BACK New project Open project Save project Print page
Check interface / terminal
Main program
Subprogram
Program design
Init
Start
Download
Insert block
Delete block
Replace blocks
Draw lines
Delete lines
Undo
Copy
Cut
Paste
Delete
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