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Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA3.FIRST STEPS WITH LOGO! 0BA0 – 0BA6Programming is defined as entering a circuit. A LOGO! program is actually nothing more than acircuit diagram in a somewhat different layout.We have adapted the display to match the LOGO! display panel. In this chapter we will show youhow to use LOGO! to turn your applications into LOGO! programs.We start out by introducing you to the two basic terms Connector and Block and show you whatthey mean.In a second step we will show you how to develop a program from a simple conventional circuitwhich you can enter directly into LOGO! in the third step.After working through only a few pages of the manual, your first program will be saved and ready torun in LOGO!. You will be able to conduct your first tests with the matching hardware (switches.).3.1ConnectorsLOGO! has inputs and outputs:InputsOutputsAnalog InputsThe inputs are specified with the letter I and a number. When you look at LOGO! from the front, youcan see the connectors for the inputs at the top. Only with analog modules LOGO! AM2 and AM2PT100 are the analog inputs on the bottom. The outputs are specified with the letter Q and anumber. The connectors of the outputs can be seen at the bottom in the figure.3.2LOGO! connectorsWe refer to all connections and states used in LOGO! as connectors. The inputs and outputs canhave the status '0' or the status '1'. Status '0' means that there is no voltage at the input; status '1'means that voltage is present. But you probably already know this. We have introduced theconnectors hi, lo and x to make it easier for you to input the program. 'hi' (high) has the fixed status'1'. 'lo' (low) has the fixed status '0'. If you do not want to activate an input of a block, use theconnector 'x'. You will find out what a block is on the next page.Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.7

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA3.3LOGO! knows the following connectorsConnectorsDMLOGO! 0BA6InputsAMAM2AQLOGO!0BA7LOGO! 230RCELOGO! 230RC/RCoLOGO! 24RC/RCoTwo groups:I1 to I4 and I5 to I8LOGO! 12/24RCELOGO! 12/24RC/RCoLOGO! 24/24oLOGO! 24C/24CoI9 to I24 AI5 toI1, I2, I3-I6, I7, I8AI3, AI4 . AI1, AI2Al8OutputsQ1 to Q4loLogical '0' signals (off)hiLogical '1' signals (on)XAn existing connection that is not usedFlagsDigital flags: M1 to M27I9 to I24 AI1 toAI8Q5 toQ16nonenoneAQ1,AQ2Analog flags:AM1 to AM6 (0BA6)AM1 to AM 16 (0BA7)Shift register bitsS1 to S8 (0BA6)S1.1 to S4.8 (0BA7)Network inputs1)NI1 to NI64 (0BA7 only)NAI1 to NAI32 (0BA7 only)Network analog1)inputsNetwork outputs1)Network analog1)outputsNQ1 to NQ64 (0BA7 only)NAQ1 to NAQ16 (0BA7 only)DM: Digital moduleAM: Analog module3.4Blocks and block numbersIn this chapter we will show you how to use the LOGO! elements to create comprehensive circuitsand how you can link the blocks with each other and with the inputs and outputs.3.5BlocksIn LOGO! a block is a function that converts the input information into output information. In the past,you had to wire the individual elements in the control cabinet or the terminal box. For programming,you connect the connectors with blocks. You simply select the required connector from the Co menu.The Co menu is named for the English term "connector".3.6Logical operationsThe simplest blocks are logical operations (e.g., AND, OR).Here the inputs I1 and I2 are connected tothe OR block. The last two inputs of theblock are not used and therefore occupiedwith x.The special functions are much more powerful (e.g., current impulse relay counters timers)8Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA3.7Display of blocks in LOGO! displayThe figure below shows a typical LOGO! display. Only one block can be displayed at the time. This iswhy we have introduced block numbers to help you control the circuit structure.View of the LOGO! displayBlock number –assigned by LOGO!Another block isconnected at this pointOutputInputThis connector is notrequiredBlock3.8Assignment of a block numberEvery time you insert a block into a program, LOGO! assigns a block number to this block. LOGO!uses the block number to show you the interconnection between blocks.The block numbers are initially only for your orientation in the circuit program.Block numbersThese blocks areinterconnectedThe overview screen shows you the three LOGO! displays that together make up the circuit program.As you can see, LOGO! interconnects the blocks with each other by using the block numbers.Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.9

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA3.9The 4 golden rules of LOGO! operationRule 1 - Changing the operating modeYou create the circuit program in the Programming mode.After a Power on and "No Program / Press ESC" on the display, you press ESC to enterProgramming mode.You can change the time values and parameter values of an existing circuit program in theParameter assignment and Programming modes.LOGO! is in RUN mode during parameter assignment, which means the circuit program is still beingprocessed. You must stop the processing of the circuit program for programming with the "Stop"command. You get to RUN mode with the menu item 'Start' in the main menu. Press ESC in RUNmode to return to the Parameter assignment mode. If you are in Parameter assignment modeand want to return to Programming mode, run the "Stop" command in the parameter assignmentmenu and answer with "Yes" for "Stop Prg" by moving the cursor to "Yes" and pressing OK.Rule 2 - Outputs and inputsYou always enter a circuit from the output to the input.You can connect an output with several inputs but not connect several outputs to one input. Youcannot connect an output with a preceding input within a program path. You need to interconnect bitmemories or outputs for such internal feedback.Rule 3 - Cursor and cursor movementThe following applies when entering a circuit:You can move the cursor when it is shown as underscore.– you move the cursor in the circuit with the , , or keys– you change to "Select connector/block" with OK– you exit entering the circuit with ESCIf the cursor is displayed as solid block, you must select a connector/block.– you select a connector/block with the or keys– you apply the selection with OK– you go back one step with ESCRule 4 – PlanningBefore you enter a circuit, you plan it completely on paper or program LOGO! directly withLOGO!Soft or LOGO!Soft Comfort. LOGO! can only save complete programs.If a circuit has not been entered completely, LOGO! cannot exit the Programming mode.10Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA3.10Overview of LOGO! menusProgramming modeMain menuProgramming menuTransfer menuSetup menuParameter assignment modeParameter assignment menuNoteAs of logic module 0BA6 you can set the menu language (e.g., to English).Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.11

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA4.EXAMPLE TASK: PLANT GATE CONTROL WITH LOGO! 0BA0 – 0BA6You can usually enter a plant site through several gates. It must be ensured that the gate can beopened and closed from inside the vehicle by pressing buttons on the gate itself or by using pullcords.A LOGO!12/24RC is used for each gate.We describe a gate control for one gate in this section. The other gate controls have the samedesign.Safety pressure strip4.1Warning lightRequirements on the gate controlEach gate is opened or closed by means of a cord switch. The gate is opened or closed completelyin the process.Each gate can also be opened or closed locally by a button in jog mode.A warning light is active 5 seconds before the start and while the gate is moving.A safety pressure strip ensures that people are not injured and that no objects are trapped anddamaged when the gate is closing.12Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA4.2Wiring the gate control with LOGO! 12/24RCopen gate4.3close gatewarning lightUsed LOGO! components and connectorsK1 at Q1 main contactor openingK2 at Q2 main contactor closingH1 at Q3 warning lightS0 at I1 cord switch OPEN-GATE NOS1 at I2 cord switch CLOSE-GATE NOS2 at I3 pushbutton OPEN-GATE-MANUAL NOS3 at I4 pushbutton CLOSE-GATE-MANUAL NOS4 at I5 position switch GATE IS OPENED NCS5 at I6 position switch GATE IS CLOSED NCS6 at I7 safety pressure strip NCUnrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.13

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA4.4Function block diagram of LOGO! solutionThe cord switch "OPEN GATE" or "CLOSE GATE" initiates the movement of the gate if theopposite direction is not switched on. The travel ends when the respective limit switch is reached.The closing process is also interrupted by the safety pressure strip.The movement of the gate is controlled in jog mode by the pushbuttons "OPEN GATE MANUAL" or"CLOSE GATE MANUAL". The travel ends when the pushbutton is released or when the respectivelimit switch is reached. The closing process of the gate is also interrupted by the safety pressurestrip.A warning light is active 5 seconds before the start and while the gate is moving.14Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA5.PROGRAM INPUT INTO LOGO! 0BA0 – 0BA6You have designed a circuit and now you would like to enter it in LOGO!. We use a program input toshow you to do just that.5.1Changing to "Programming" modeYou have connected LOGO! to the power supply and switched on the voltage. The display looks asfollows:Switch LOGO! to programming mode.You do this by pressing ESC. The LOGO! main menu opens.LOGO! main menu:The first character of the first line is a " ".Use the cursor keys ( , ) to move the " " up and down.Move the " " to "Program." and press OK.LOGO! programming menu:Here you can also use the cursor keys ( , ) to move the " ". Set the " " to"Edit." (for editing, i.e., entering) and press OK.LOGO! edit menu:Set the " " to "Edit Prg" (for editing circuit program) and press OK.5.2LOGO! changes to the programming menuLOGO! programming mode:LOGO! only shows you the first output:Use the cursor keys ( , ) to select the other outputs.Now you can start entering your circuit.Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.15

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA5.3Entering the programNow we enter the program (from output to input). LOGO! starts by displaying output Q1:The first LOGO! outputThe cursor shows you whereyou are in the program.You see an underscore below the Q of Q1. We call the underscore cursor. The cursor shows youwhere you currently are in the program. You can move the cursor with the cursor keys. Press thebutton Cursor to the left.Here you enter the first block. Change to input mode by pressing OK.The cursor is displayed as asolid block: You can select aconnector or a block.The SF list includes theblocks for specialThe cursor is no longer an underscore but flashes as solid block. LOGO! offers you differentselections at the same time. Select SF (press the Cursor down button until SF is displayed) andpress OK. LOGO! now shows you the first block from the list of special functions (SF):TrgParQ1LOGO! shows the block of the function when youselect a block for a special or basic function. Thecursor is located in the block in form of a solidblock. Use the or keys to select the requiredblock.Confirm your selection with OK.The block for the on-delay has two inputs. The input on top is the trigger input (Trg). Use this inputto start the on-delay. The on-delay is started by OR block B2 in our example. Use the parameterinput (Par) to set the time for the on-delay.NoteIdentify the individual logical functions on the function block diagram with the block numbers of yourLOGO! program.This makes for easier troubleshooting or editing of the program.16Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FA5.4Parameter assignment of a blockNow enter the time T for the on-delay:1. If the cursor is not yet under the Par, use the cursor keys to move it under the Par.2. Change to input mode: Press OK.LOGO! displays the parameter window for parameters:" " means: The parameter isdisplayed in parameterassignment mode where it canalso be edited. "R" means:Retentivity is enabled for thisblock.T: The parameterof block B2 is atime.Time valueUnit of time (timebase)How to change the time value: Use the and keys to move the cursor back and forth. Use the and keys to change the value at that point. Once you have entered the time value, press OK.Move the cursor under the B of B1 (B1 is the block number of the time block).Press the Cursor to the left button two more times to position it under Trg.TrgParQ1Press OK.Use the Cursor down key to select GF for basic functions.Confirm with OK (block B2 is displayed).The first block from the list of basicfunctions is AND. The cursor is displayedas solid block and indicates that you haveto select a block.Use the Cursor down key to select an OR (OR function).Click OK to confirm.Unrestricted for use by Education / R & D Facilities. Siemens AG 2015. All Rights Reserved.17

Siemens AG 2015SCE Training Curriculum Additional Module 900-010, Edition 06/2015 Digital Factory, DF FAPress OK at the first input of the OR block (CO is displayed) and then OK once again (I1 appearsand the I flashes). Now press the Cursor up button three times until you see an x. Confirm yourselection with OK. This is how you enter an x for a position not in use. The cursor jumps to thesecond input of the OR block.Press OK at the second input and change to SF for special functions with Cursor down.Confirm your selection with OK.Use the cursor keys ( , ) to select an RS memory and confirm with OK.You are now in block B3.Enter an AND block (And function) at the set input of the memory with OK, Cursor down to GFfor basic functions and OK again.Confirm your selection with OK.You are now in block B4.At the first input of the AND block, enter the input I5 with OK (CO appears) and OK once again (I1appears) and the cursor keys ( , ).Click OK to confirm.

5 LOGO! logic module 0BA7 – 0BA8 with Ethernet interface (alternatively) 6 Ethernet cable (alternatively) 3 LOGO!12/24RC 0BA0 - 0BA6 2 LOGO!Soft Comfort 1 . After working through only a few pages of the manual, your first program will be saved and ready to run in LOGO!. You will be able t