Getting Started with Fischertechnik LLWin 3.03

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Getting Started with FischertechnikLLWin 3.03
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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

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What you will need to get started

• LLWin 3.02 Software
• Computer
• Interface
• Power supply
• Serial Cable
• Fishertechnik Basic Building Blocks

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Lets take a look
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Setting up the System

• Connecting the interface and the computer

Using the provided serial cable connect the
interface and computer together
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Setting up the Software

• Under options Select Setup Interface

Change the port setting
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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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Starting a New project

• Go to Projects and select new

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

• Function Blocks

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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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Function Blocks

• Outputs

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Function Blocks

• Outputs

Electromagnet
Lamp
Motor
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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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Function Blocks

• Inputs

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Function Blocks

• Inputs

Photo-Transistor
Switch
Reed Contact
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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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Function Blocks

• Edge

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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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Function Blocks

• Position

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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

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Function Blocks

• Position

Result
The input
Counter
Counting Direction
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Function Blocks

• Start

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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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Function Blocks

• End

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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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Function Blocks

• Reset

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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

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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.

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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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Function Blocks

• Emergency Stop

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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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Function Blocks

• Terminal

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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.

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Function Blocks

• Terminal Uses
• Output Display
• Input Variable Display
• Text Display
• Emergency Off Switch
• Terminal Parameters EA ED

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Function Blocks
Outputs

• Terminal

Analog Inputs
Message block
Presentable inputs
10 Digital Switches
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Function Blocks

• Display

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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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Function Blocks

• Message

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Function Blocks

• Message
• Displays messages up to 17 characters as text
  with the ability to change colors.

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Function Blocks

• Show Values

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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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Function Blocks

• Variable

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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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Function Blocks

• Assignment

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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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Function Blocks

• Compare

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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., Var1300

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Function Blocks

• Beep

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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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Function Blocks

• Wait

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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 999.99seconds

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Function Blocks

• Text

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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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Editing Commands

• Function Keys
• Switching to the different editing modes
• Keyboard combinations for editing blocks and
  connections
• Zoom
• Check Interface

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Editing Commands

• Function Keys
• F1 Direct call to online help for the operator.
• CTRLF1 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
• ShiftF5 Cascade windows
• ShiftF4 Tile windows

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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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Editing Commands

• Keyboard combination for editing blocks and
  connections
• CTRLI. 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.
• ShiftI. Mouse button Select a group of blocks
• CTRLA Select all
• CTRLU Undo selection
• CTRLX Cut selected blocks
• CTRLC Copy selected blocks
• CTRLV Insert copied blocks
• DEL Delete selected blocks

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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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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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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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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.

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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.

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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

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Subprograms

• In the Windows menu click theTilecommand
• 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.

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Subprograms

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

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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
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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
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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.
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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
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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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Copying Subprograms

• You can copy a subprogram from one
  program(project) to another program(project).
• Run two concurrent sessions of LLWin 3.0. 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
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Copying Subprograms

• Open the second sessions of LLWin 3.0. 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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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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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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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

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Analog Inputs

• Check Interface

Analog Displays
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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 32567

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Using Formulas

• Comparison Operators
• Equals
• lt Smaller than
• gt Greater than
• lt Smaller or equal to
• gt Greater or equal to
• e.g. Var. 1 gt 567

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Using Formulas

• Various expression can be linked logically with
  AND, OR, and NOT.
• e.g. E1 AND E2 AND NOT E3
• Var.15 OR Var.23
• Finally you may use parentheses

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Menu Commands
New project Open project Save project Print
page Check interface / terminal Main
program Subprogram Program design Init Start Downl
oad
Insert block Delete block Replace blocks Draw
lines Delete lines Undo Copy Cut Paste Delete
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