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Ladder User Manual

1. FECCCUP thinks the statement The variable can be pre set at any TASK VTB PLC_CDOWN Variable LONG INT UINT CHAR UP counter The count UCHAR declared in MAIN In the is INCREASED if the ACC case of the compiler LADDER he is ON PLC_CDOWN thinks the statement The variable can be pre set at any TASK VTB PLC_CRES Variable LONG INT UINT CHAR Reset based on the UCHAR declared in MAIN In the contents of the case of the compiler LADDER he accumulator counter PLC_CRES thinks the statement the UP or DOWN 21 A vitua Yyguwlogil g Jas rkid yf DENA lt www orkid dena com D B amp B Example Variable declaration Vari gt var 2 Var2 gt var 1 Old_stato as char Initialization STATE Old_stato 0 PLC LD vari PLC DOWN old_ stato PLC OUT Example Variable declaration Var1 gt var 2 Contad long PLC LD varl PLC_CUP contad Example Variable declaration Var1 gt var 2 Contad long PLC LD varl PLC_CDOWN contad Example Variable declaration Var1 gt var 2 Conta long PLC LD varl PLC CRES conta PLC_CMP Variable to compare LONG INT UINT CHAR UCHAR declared in the MAIN or CONSTANT inserted directly In the case of the compiler LADDER he thinks the statement NOTES PLC_CMP phase begins for PLC_CMP comparison in LADDER is not present must be followed by one of the following instructions PLC_EQ PLC_NE PLC_GT PLC_GE PLC
2. Enter the name of the variable to set The variable can be existing in this case it is declared in application VTB INITIALIZATION A Numeric Value Enter 0 or 1 in the INITIALIZE Do not initialize the variable is not initialized with any value A Variable enter the name of a variable in the BIT field DEFAULTS OUTPUT DENIED Z Operation logic block end The logical result of all the previous circuit is transferred to release denying the content the output remains active until the result is TRUE DENIED PARAMETERS Variable Name of the variable associated bit default OUTnn Enter the name of the variable to set The variable can be existing in this case it is declared in application VTB INITIALIZATION A Numeric Value Enter 0 or 1 in the INITIALIZE Do not initialize the variable is not initialized with any value A Variable enter the name of a variable in the BIT field DEFAULTS 10 Qy orkid dena c SY www orkid dena com Set Output Operation logic block end Set the relay latching according to the result of the entire circuit prior logical output remains active until it is operated RESET PARAMETERS Variable Name of the variable associated bit default SETnn Enter the name of the variable to set The variable can be existing in this case it is declared in application VTB INITIALIZATION None Reset Output R Operation logic block end Resets the relay in latching according to the logical resu
3. Function Variable Bit declared in MAIN In Sends the contents of Variable declaration PLC OUT the case of the compiler LADDER he the accumulator in the Vari gt var 2 thinks the statement BIT output PLC LD varl PLC_OUT PLC_OUTN Function Variable Bit declared in MAIN In Send the contents of Variable declaration PLC OUTN the case of the compiler LADDER he DENIED in BIT Var1 gt var 2 thinks the statement accumulator output PLC LD varl PLC _OUTN PLC_SET Function Variable Bit declared in MAIN In Set the relay in SELF Variable declaration PLC SET the case of the compiler LADDER he based on the content Varl1 gt var 2 7 thinks the statement of ACCUMULATOR PLC LD varl PLC_ SET PLC_RES Function Variable Bit declared in MAIN In Resets the relay in Variable declaration PLC RES the case of the compiler LADDER SELF based on the Var1 gt var 2 E he thinks the statement content of ACCUMULATOR PLC LD var1 PLC_RES 18 PLC_TON PLC TON PLC_TOFF PLC_TOFF Variable vector of positions 2 or UINT or LONG declared in MAIN In the case of the compiler LADDER he thinks the declaration and all INITIALIZATION NOTES Not using the compiler LADDER need to initialize the variable in the INIT MAIN Where VARIABLE 0 contains the millisecond value of the TARGET TIMER VARIABLE 1 contains the starting value and the present value Variable vector of positions 2 or UINT or LONG declared in MAIN
4. In the case of the compiler LADDER he thinks the declaration and all INITIALIZATION NOTES Not using the compiler LADDER need to initialize the variable in the INIT MAIN Where VARIABLE 0 contains the millisecond value of the TARGET TIMER VARIABLE 1 contains the starting value and the present value Function Delay to ignition switch output The output is activated with delay TON to ignition pulse The output can be any one of the blocks PLC_OUT PLC_OUTN PLC_SET PLC_RES Function Off Delay of output The output is switched off with the TOFF to delay pulse off The output can be any one of the blocks PLC_OUT PLC_OUTN PLC_SET PLC_RES 19 ys bse www orkid dena com vitua Yyguwlogil g J iS SI Variable declaration Var1 gt var 2 Var2 gt var 1 Tempo 2 as long Initialize TIMER Tempo 0 1000 1 sec Tempo 1 1000 1 sec PLC LD varl PLC_TON tempo PLC_SET var2 Example Variable declaration Var1 gt var 2 Var2 gt var 1 Tempo 2 as long Initialize TIMER Tempo 0 1000 1 sec Tempo 1 0 PLC LD varl PLC_TOFF tempo PLC SET var2 ACC OUT TOFF Variable vector of positions 2 or UINT or LONG declared in MAIN In the case of the compiler LADDER he thinks the declaration and all INITIALIZATION NOTES Not using the compiler LADDER need to initialize the variable in the INIT MAIN Where VARIABLE 0 contains the millisecond value of the
5. LADDER current application LADDER APPLICATION COMPILER AEA The ladder application is compiled by checking various errors If the outcome is positive is generated in an OBJECT MACRO CLASS PLC OBJ with name chosen by the compilation window To use the PLC application filled out simply insert the object in the MAIN PAGE of application VTB EEE Compila e iii rire iii iii x Nome classe oggetto PLC_O BJ MACRO NAME CLASS Commento del oggetto DGGETTO PLC NAME OF THE SUBJECT Nome tile oggetto alc co COMMENT OF THE RESULTS OF COMPLETION Crea oggetto Annulla Variabili dichiarate LIST OF VARIABLES DENA F DEBUG USE rapper F www orkid dena com 3 RB In this mode displays the status of the various circuits that make up the pattern LADDER It is useful to make the DEBUG dell application as you can see both the state will make a force on the variables that compose the circuit A closed loop or other assets are represented by the color GREEN To make the FORCING of the various bits or variables simply click with the left mouse button on the circuit concerned and enter the desired value in special POP UP window kid oea AERTS Nn ey Lana x ON Orr a _ _______m POPUP WINDOW FOR FORCING BIT Qy www orkid dena com Ba LIST INSTRUCTIONS PLC LADDER ti CIRCUIT CONTACT It allows you to combine one or more objects ladder Click on one end of an object then click on the other end of the
6. object to merge Set contact through multiple ends these will all be united First end LD3 LLI4 POINT KINGDOM Lhd ILDS Second end LOAD BIT H Operation logic block start Upload the specified bit PARAMETERS Variable Name of the variable associated bit default LDnn Enter the name of the variable to be loaded The variable can be existing in this case it is declared in application VTB INITIALIZATION A Numeric Value Enter 0 or 1 in the INITIALIZE Do not initialize the variable is not initialized with any value A Variable enter the name of a variable in the BIT field DEFAULTS if vitus Yyguwlogil g Jas rkid yf v DENA lt www orkid dena com D B amp B LOAD BIT DENIED SSF Operation logic block start Loads the bit indicated by denying the content PARAMETERS Variable Name of the variable associated bit default LDnn Enter the name of the variable to be loaded The variable can be existing in this case it is declared in application VTB INITIALIZATION A Numeric Value Enter 0 or 1 in the INITIALIZE Do not initialize the variable is not initialized with any value A Variable enter the name of a variable in the BIT field DEFAULTS Output C Operation logic block end The logical result of all the previous circuit is transferred to exit s output remains active until the result is TRUE PARAMETERS Variable Name of the variable associated bit default OUTnn
7. If the variable Var1 int the MAIN or CONSTANT inserted VAR1 VAR2 is less than Var2 int directly In the case of the compiler or equal to the LADDER he thinks the statement contents of the accumulator is set to 1 PLC_CMP vari NOTES TRUE PLC_LE var2 The education PLC_LE must always be preceded by PLC_CMP Var1 24
8. TARGET TIMER VARIABLE 1 must be CLEARED CHAR or UCHAR variable declared in MAIN In the case of the compiler LADDER he thinks the statement The variable must be initialized with the INIT MAIN DEFAULT value of the STATE Function Activate output for the time TP The output is activated on the rising edge of the accumulator The output can be any one of the blocks PLC OUT PLC_OUTN PLC_SET PLC_RES Function Turning on the FRONT OUTPUT RISE of BATTERY The output can be any one of the blocks PLC_OUT PLC_OUTN PLC_SET PLC_RES 20 www orkid dena com DENA oe at a 3S B amp B Variable declaration Var1 gt var 2 Var2 gt var 1 Tempo 2 as long Initialize TIMER Tempo 0 1000 1 sec Tempo 1 0 reset PLC LD varl PLC_TP tempo PLC_SET var2 iL Example Var1 gt var 2 Var2 gt var 1 Old_stato as char Initialization STATE Old_stato 0 PLC LD varl PLC_UP old_stato PLC_OUT PLC_DOWN CHAR or UCHAR variable declared OUTPUT FACE DOWN on the activation of the in MAIN In the case of the compiler LADDER he thinks the ACC statement The variable must be PLC_DOWN initialized with the INIT MAIN The output can be any DEFAULT value of the STATE one of the blocks PLC OUT PLC_OUTN PLC_SET PLC_RES PLC_CUP Variable LONG INT UINT CHAR UP counter The count UCHAR declared in MAIN In the is INCREASED if the ACC case of the compiler LADDER he is ON
9. thinks the statement Var2 gt var 1 PLC LD Var2 PLC AND Var1 PLC_ANDN Function Variable Bit declared in MAIN In Logical AND DENIED Variable declaration the case of the compiler LADDER he Varl1 gt var 2 PLC_ANDN Var thinks the statement Var2 gt var 1 PLC LD Var2 PLC ANDN Vari PLC_OR Function Variable Bit declared in MAIN In Logical OR operation Variable declaration the case of the compiler LADDER he Varl1 gt var 2 PLC_OR Var thinks the statement Var2 gt var 1 PLC LD Var2 PLC OR Varl 16 av Use PL C ORN www orkid dena com Function Variable Bit declared in MAIN In Logical operation OR Variable declaration the case of the compiler LADDER he DENIED Varl1 gt var 2 PLC_ORN Var thinks the statement Var2 gt var 1 PLC LD Var2 PLC _ORN Var1 PLC_PUSH Function ACC PUSH dell ACC in STACK Variable declaration Varl gt var 2 PLC PUSH Var2 gt var 1 PLC LD Var2 PLC OR Var1 PLC PUSH PLC_ANDS Function ACC Logical AND STACK Variable declaration with the ACC Var1 gt var 2 Var2 gt var 1 Var3 gt var 3 PLC_ANDS PLC_LD var2 PLC_OR varl PLC_PUSH PLC_LD var3 PLC_ANDS PLC_ORS Function ACC Logical OR STACK with Variable declaration the ACC Var1 gt var 2 Var2 gt var 1 Var3 gt var 3 PLC_ORS PLC LD var2 PLC OR varl PLC PUSH PLC LD var3 PLC_ORS 17 d vitua Yyguwlogil g Jas rkid yf DENA lt www orkid dena com D B amp B PLC_OUT
10. 93 514 lad rkid A wae ho aS www orkid dena com User Manual PROMAX Ladder s E D VTB WTB nuovo idr Ingressi Uscite Timer Fronti Contatori Funzioni Text x Jo LDI SET1 LDI SETI LD2 RESI UPI CUPI OUTI gt lele la e e 5 LD3 TONI OUT2 J LD3 TONI OUT2 LD4 COMPI_1 OUT3 _ E LD4 COMPI OUT3 vr Aj E z l la x e Li B0001 RO0000 COOOO2 rkid oea DENA lt www orkid dena com Use the Internal PLC LADDER ee Using the CAN OPEN protocol is enabled TASK PLC to control fast I O This provides for the use of special instructions that are optimized for cycle management PLC consequently any instructions belonging to the BASIC TASK can create system malfunction Language the PLC used is very simple and practical and can also be generated by a compiler LADDER chart Various bits of memory instructions operate set reset outputs input management timers etc that is needed to build a functional PLC cycle It should be noted that the PLC is shared with the TASK PLC and hence the instructions to HIGH LEVEL are handled latter s greatly reducing the load on the PLC The TASK PLC has a high priority and is executed in a sampling time determined by the configuration of VTB The Task PLC can be written with the EDITOR specific integrated in VTB or using the application PLC Ladder which consists of a graphi
11. MATIC is equal to 1 This in effect creates an optimization of the speed of execution of the PLC cycle as it may exclude entire sections that are related to a condition PARAMETERS No one INITIALIZATION None Blocco 1 if automatic o Blocco LOI TONI SETTI LUI Blocco 3 endif COMMENTS ALL INSIDE A BLOCK REM The REM element allows you to write comments all inside of a block Since this is an OBJECT must necessarily be was added at the beginning or end of a block Comments may contain text that is ignored however at the time of compilation To enter the text you just click with the right mouse button on REM inserted object and then enter the title and description PARAMETERS No one INITIALIZATION None 15 y pea BB www orkid dena com TEXT LIST INSTRUCTIONS PLC PLC_LD Function Variable Bit declared in MAIN In Logical operation start BIT type variable declaration the case of the compiler LADDER he Var1 gt var 2 original variable thinks the statement PLC_LD Var PLC_LD vari PLC_LDN Function Variable Bit declared in MAIN In Start logical operation BIT type variable declaration PLC_LDN Var the case of the compiler LADDER he denied Var1 gt var 2 original variable thinks the statement PLC_LDN vari PLC_AND Function Variable Bit declared in MAIN In Logical AND operation Variable declaration the case of the compiler LADDER he Varl1 gt var 2 PLC_AND Var
12. _LT PLC_LE PLC_EQ Variable Comparison LONG INT UINT CHAR UCHAR declared in the MAIN or CONSTANT inserted directly In the case of the compiler LADDER he thinks the statement NOTES The education PLC_EQ must always be preceded by PLC_CMP Var1 Function Comparison of two variables Function Comparison if EQUAL If the two variables are the SAME content of accumulator is set to 1 TRUE 22 itive Yyguwlogil g Jas rkid yf Joena lt www orkid dena com D A Example Variable declaration Var1 int Var2 int PLC_CMP var1 PLC_EQ var2 see varl var2 accumulatore 1 Example Variable declaration Var1 int Var2 int PLC_CMP var1 PLC_EQ var2 see varl var2 accumulatore 1 PLC_NE Variable Comparison LONG INT UINT CHAR UCHAR declared in the MAIN or CONSTANT inserted directly In the case of the compiler LADDER he thinks the statement NOTES The education PLC_NE must always be preceded by PLC_CMP Var1 Variable Comparison LONG INT UINT CHAR UCHAR declared in the MAIN or CONSTANT inserted directly In the case of the compiler LADDER he thinks the statement NOTES The education PLC_GT must always be preceded by PLC_CMP Var1 PLC_GE Variable Comparison LONG INT UINT CHAR UCHAR declared in the MAIN or CONSTANT inserted directly In the case of the compiler LADDER he thinks the statement NOTES The education PLC_GE must always be prec
13. cs system contacts very simple and intuitive ACTIVATION PLC EDITOR PLC Editor is activated by the Project window by selecting the TASK PLC ICON Then you go to an ASCII EDITOR where you can write a PLC program using the instructions explained below Progetto Progetto Fle E Task Pic Icon for activation PLC EDITOR Main Main Pagine Pag 1 The PLC application is saved in the PROJECT and charged accordingly without loss of information Enter instructions in the task PLC than those plc may cause a malfunction of the program NOTES ON THE TASK PLC The TASK PLC runs in a INTERRUPT at regular intervals by stopping the TASK PLC The two TASK can share all kinds of variables being careful only with the 32 bit variables LONG FLOAT This is because since the two may happen that the asynchronous TASK PLC is INTERRUPTED by the PLC when upgrading a 32 bit variable since this requires two instructions ASSEMBLER if the TASK PLC uses the same variable can be an incorrect reading or writing from TASK PLC of the variable If the two shared variables using TASK 32 bit is recommended to select the shared variable flag in the page of page variables VTB will perform well in automatic control This system however slows the operation of the application di rkia A oea DENA www orkid dena com LS B The next system is WRONG because the control of VAR1 type LONG made in Task PLC can generate ERRORS Example variables u
14. eded by PLC_CMP Var1 Function Comparison if DIFFERENT If the two variables are DIFFERENT the content of accumulator is set to 1 TRUE Function Comparison if AJEURE If the variable VAR1 VAR2 is GREATER than the content of accumulator is set to 1 TRUE Function Comparison if Greater than If the variable VAR1 to VAR2 is greater than the content of accumulator is set to 1 TRUE 23 vitus Yyguwlogil g J GS rkid yf Joena lt www orkid dena com 3 BH Example Variable declaration Var1l int Var2 int PLC CMP varl PLC_NE var2 se varl var2 accumulatore 1 Example Variable declaration Vari int Var2 int PLC_CMP vari PLC_GT var2 Example Variable declaration Var1 int Var2 int PLC_CMP vari PLC_GE var2 F vitua Yyguwlogil g Jas rkid yf Joena lt www orkid dena com D PLC_LT Function Example Variable Comparison LONG INT UINT Comparison if LESS If the Variable declaration CHAR UCHAR declared in the MAIN variable VAR1 VAR2 is Vari int or CONSTANT inserted directly In the LESS than the content of Var2 int case of the compiler LADDER he thinks accumulator is set to 1 the statement TRUE PLC_CMP vari NOTES PLC_LT var2 The education PLC_LT must always be preceded by PLC_CMP Vari PLC_LE Function Example Variable Comparison LONG INT Comparison Less than Variable declaration UINT CHAR UCHAR declared in though
15. ivate output on the falling edge of the pulse PARAMETERS Variable Name of the variable associated bit default UPnn Enter the name of the variable support The variable can be existing in this case it is declared in application VTB INITIALIZATION A Numeric Value Enter 0 or 1 in the INITIALIZE Do not initialize the variable is not initialized with any value A Variable enter the name of a variable in the BIT field DEFAULTS Up Counter jCUP Increment the counter PARAMETERS Variable Name of the variable associated counter variable default CUPnn Enter the name of the variable Support The variable can be existing in this case it is declared in application VTB INITIALIZATION None Down Counter C00UN Decrements the counter PARAMETERS Variable Name of the variable associated counter variable default CDNnn Enter the name of the variable Support The variable can be existing in this case it is declared in application VTB Type Variable Type of the variable CHAR INT etc INITIALIZATION None Reset Counter FES Reset the counter PARAMETERS Variable Name of the variable associated counter variable default CRESnn Enter the name of the variable to reset The variable can be existing in this case it is declared in application VTB Type Variable Type of the variable CHAR INT etc INITIALIZATION None 13 ts oea COMPARISON OF TWO VARIABLES Eor NN e nan LS y Compare the content of t
16. lt of the entire circuit prior output remains reset until it is operated in a set PARAMETERS Variable Name of the variable associated bit default RESnn Enter the name of the variable to set The variable can be existing in this case it is declared in application VTB INITIALIZATION None Ondelay Timer Delay to ignition switch output the output is activated with delay TON to ignition pulse PARAMETERS Time Delay time in milliseconds Variable Name of the variable associated timer default TONnn Enter the name of the variable that contains the time The variable can be existing in this case it is declared in application VTB Type Variable Variable type INT max 32768 Ms or LONG INT variables are faster as management INITIALIZATION A Numeric Value enter the value in the field in Ms TIME Do not initialize the variable is not initialized with any value A Variable enter the name of a variable in the TIME 11 if vitua Yyguwlogil g Jas rkid yf DENA lt www orkid dena com D Off Delay Timer Ltt Delay shutdowns of exit s output is switched off with the TOFF to delay pulse off PARAMETERS Time Delay time in milliseconds Variable Name of the variable associated timer default TOFFnn Enter the name of the variable that contains the time The variable can be existing in this case it is declared in application VTB Type Variable Variable type INT max 32768 Ms or LONG INT variables are fas
17. o blocks which contain an electrical circuit more or less complex A block always begins with the elements of INPUT and OUTPUT ends with elements can be inserted between these elements and processing conditioning timers counters etc A block can be represented in its minimum configuration in the following example LD2 SETZ LD SET2 In this example the input which may be any bit of memory determines the set of output that can be any bit of memory The blocks may be endless and may contain more complex networks of the previous example BLOCK MARKER The MARKER block is used to identify the selected block This turns solid RED when selecting BLOCK MARKER rkia oea DENA lt www orkid dena com B amp B SETTING OF A FUNCTION PLC A PLC function has parameters which must be set this is done by clicking the right button on the grid that contains the PLC and inserting in its own window pop up the various values The parameters of each function will be described below ILDI Gird PLC Function of containment a zz zzz i eet ae een ane e Caer eee x vanabile LD l l Pop Up window parameters for inclusion Inizializza Inizializza zione f Valore numerico f A variabile f Non inizializzare A es Ae Pee 25001 SELECTION OF ONE OR MORE ELEMENTS OF A BLOCK The selection of one or more elements of a block is a very important feature of the compiler ladder this because some functi
18. ons operate only on selected items An item is selected when the background of the grid that contains it becomes YELLOW To select a single element of a block simply click with the left mouse button on element concerned in addition to element is also selected the whole block BLOCK MARKER the change of color To select multiple items in a lock hold down the SHIFT key on the keyboard and click with the left mouse button on the relevant elements or select the various elements within the rectangular window designed by dragging the MOUSE For UNCHECK one or more items simply click the left mouse button in an empty grid CANCELLATION AND MOVE SELECTED CANCELLATION OF SELECTED Care for the cancellation of one or more elements selected simply press the Delete key on the keyboard Deleted items can still be recovered with the Undo button on the menu bar MOVE OF THE ELEMENTS SELECTED This allows you to move the selected items in the grid To activate the shift button is selected must LOCK UNLOCK THE ELEMENTS as it is sufficient to click with the left mouse button on the selected items hold it down drag the items to the desired location if vitus Yyguwlogil g Jas rkid yf v DENA lt www orkid dena com D B amp B MENU BUTTONS Following describes all the functionality of the toolbar buttons in the menus related to the compiler LADDER Undo Eli Retrieves the last I O element block erased LOCK UNLOCK THE a It allows
19. sed var1 long counter declared in the MAIN var3 char declaration for variable bit var2 var3 1 bits declared in TASK PLC used by PLC Main If var1 gt 1000 TASK PLC PLC_LD var2 PLC_CUP vari If you do not want to use shared variables or you want additional control this is the correct system Example variables used var1 long counter declared in the MAIN var3 char declaration for variable bit var2 var3 1 bits declared in MAIN TASK used by PLC var4 var3 2 synchronism bit of TASK Main If var4 1 Check the status of bit synchronization TASK PLC PLC_LD var2 PLC_CUP vari PLC_CMP vari PLC_GT 1000 PLC_OUT var4 rkid oea DENA lt www orkid dena com NOTES ON THE LIMITATION OF LADDER The ladder has limitations related to the construction of the circuit These restrictions only concern the objects related to the family of TIMER FACES and FUNCTIONS In practice these types of items shouldn t have no right to the knot of the Circuit functional LD1 UP2 SET 1 LD1 UP2 SET1 Another limitation concerns the functions related to counters These are considered output and therefore should always be there at the end of the block OPERATION OF COMPILER LADDER The compiler allows you to manage LADDER PLC cycles using the classical graphical representation of electrical circuits this greatly simplifies the management of PLC applications In practice the PLC application is divided t
20. ter as management INITIALIZATION A Numeric Value enter the value in the field in Ms TIME Do not initialize the variable is not initialized with any value A Variable enter the name of a variable in the TIME Tp Timer Activate output for the time TP the output is activated on the rising edge of the pulse for the time indicated PARAMETERS Time Activation time in milliseconds Variable Name of the variable associated timer default TPnn Enter the name of the variable that contains the time The variable can be existing in this case it is declared in application VTB Type Variable Variable type INT max 32768 Ms or LONG INT variables are faster as management INITIALIZATION A Numeric Value enter the value in the field in Ms TIME Do not initialize the variable is not initialized with any value A Variable enter the name of a variable in the TIME Rising Edge Activate output on the rising edge of the pulse PARAMETERS Variable Name of the variable associated bit default UPnn Enter the name of the variable support The variable can be existing in this case it is declared in application VTB INITIALIZATION A Numeric Value Enter 0 or 1 in the INITIALIZE Do not initialize the variable is not initialized with any value A Variable enter the name of a variable in the BIT field DEFAULTS 12 if vitua Yyguwlogil g Jas rkid yf DENA lt www orkid dena com D Bw Falling Edge Ea Act
21. wo variables PARAMETERS Variable 1 Name of the first variable to be compared default COMP_1nn The variable can be any in this case it is declared in application VTB Type varl type variable1 CHAR or INT etc Variable 2 The name of the second variable to be compared default COMP_2nn The variable can be any in this case it is declared in application VTB Type var2 type variable2 CHAR or INT etc Type Comparison Conditions for comparison True condition if variable1 equal to variable2 lt gt True condition if variable1 to variable2 different gt True condition if variable1 variable2 more lt True condition if less than variable1 variable2 gt True condition if greater than or equal to variable2 variable1 lt True condition if less than or equal to variable2 variable1 INITIALIZATION A Numeric Value enter the value in the field DEFAULTS Do not initialize the variables are not initialized with any value A Variable enter the name of a variable in the INITIALIZE 14 rkid oea DENA lt www orkid dena com BB WRITING CODE VTB TXT The TXT element allows you to write code to VTB internal application LADDER Therefore they can be used all the instructions that recognizes VTB This function is very powerful because it allows to optimize the LADDER application for example by inserting cycles ENDIF IF that affect one or more blocks LADDER In example shown below the block 2 is scanned only when the variable AUTO
22. you to lock or unlock the displacement of selected items COPY SELECTED ELEMENTS 1 The selected items are copied to memory to the actual copy simply click with the left mouse button in the desired grid point t ADD BLOCK Adds an empty block in the ladder diagram The block is added after the last CLEAR THE BLOCK SELECTED The block with the MARKER selected is deleted The Undo function makes it possible to block recovery INSERT A BLOCK AFTER THE SELECTED Is inserted into an empty block next to the one that has the MARKER selected te ADD A ROW TO BLOCK SELECTED i A row is added to the block that has the selected marker COPY ALL THE ELEMENTS OF SELECTED BLOCK E All elements of the selected block are copied into memory To make an actual copy in the grid then click with the left mouse button in a grid point where it affects insert the new block that contains the copy of the selected one SEARCH FOR AN ITEM i Search a symbol of an element in all the blocks of application The results will be presented in the dialog box Clicking on the result the block will be brought to the foreground si rkid 1 we DENA lt www orkid dena com A C C N di m Cerca mie ne a Csa Nascondi Sothern ACTION RESULTS ee EXTENDING THE SEARCH FOR THE COMMENTS OF THE SUBJECT FINDA stock Search a name of a block the results are similar to the function Search Element E SAVE FILE PRESENT Save the

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