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Innovative Switching & Control

The internal qualities count. L. OGO! -. Innovative Switching & Control. The internal qualities count. Basic functions. AND (edge). NAND (edge). AND. NAND. OR. NOR. XOR. NOT. Integrated functions. 8 basic functions. S1. S2. 1. 0. 0. 1. 0. 1. 1. 1. 0. 1. 0. 0. 0.

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Innovative Switching & Control

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  1. The internalqualitiescount L OGO! - Innovative Switching & Control

  2. The internalqualitiescount Basic functions AND (edge) NAND (edge) AND NAND OR NOR XOR NOT Integrated functions 8 basicfunctions

  3. S1 S2 1 0 0 1 0 1 1 1 0 1 0 0 0 1 0 1 0 1 0 0 0 1 0 1 0 0 1 0 0 0 0 1 S3 Input 3 Input 1 Output Input 2 H1 AND S1 & S2 H1 S3 x AND function A look at the circuit diagram shows that the light H1 is only on when S1 and S2 and S3 are closed. Input and output states are dependent on each other. The circuit to the right is called AND logic. In words contact S1 and S2 and S3 have to be closed for the light to burn. Symbol for this connection is . Integrated functions Series circuit normally open contact Logic table for AND block: Izhod AND funkcijeje 1 samo tedaj, ko so vsi vhodi 1. Če vhodni pin ni povezan, je vrednost vhoda avtomatično 1.

  4. S3 S2 S1 0 1 1 1 0 0 0 1 1 1 1 1 1 0 1 1 1 1 0 1 1 0 0 0 1 0 1 1 0 1 0 0 Input 3 Output Input 1 Input 2 H2 OR S1 > S2 H2 S3 x OR function To turn the lamp H2 on, the contact S3 or S4 or S5 have to be closed. The dependence of output states from inputs states is called OR logic. In words at least one of the contacts S3 or S4 or S5 have to be closed for the lamp H2 to light up. Symbol for this connection is . Parallel circuit normally open contact Integrated functions Logic table for OR block: Izhod funkcije OR je 1, ko je vsaj en vhod 1. Če vhodni pin ni povezan, je vrednost vhoda avtomatično 0.

  5. S1 S2 6 0 1 5 S1 S3 Electro mechanical counter S2 H2 S3 H2 S1 & S2 H2 S3 x AND with edge triggering Integrated functions AND with edge triggering Izhod funkcije “AND with edge triggering”je 1, če so vsi vhodi 1, in je bil v prejšnjem ciklu vsaj en vhod 0. Če vhodni pin ni povezan, je vrednost vhoda avtomatično 1.

  6. S1 S2 S3 0 1 1 1 0 1 0 0 1 1 1 1 0 0 1 1 1 1 0 1 0 1 0 1 1 1 1 0 0 1 0 0 Input 3 Output Input 1 Input 2 H2 NAND & S1 S2 H2 S3 x NAND (not-AND) function A look at the circuit diagram shows that the light H2 is not on, only when all contacts are switched. The circuit to the right is called NAND logic. In words S1 and S2 and S3 have to be switched for the light H2 not to burn. Symbol for this connection is . Parallel circuit normally closed contact Integrated functions Logic table for NAND block: Izhod funkcije NAND je 0, ko so vsi vhodi 1. Če vhodni pin ni povezan, je vrednost vhoda avtomatično 1.

  7. 1 0 6 5 S1 S1 S3 S3 S2 H2 S3 H2 S1 & S2 H2 S3 x NAND (not-AND) with edge triggering Integrated functions Electro mechanical counter NAND with edge triggering Izhod funkcije “NAND with edge triggering”je 1, ko je vsaj en vhod 0 in so bili v prejšnjem ciklu vsi vhodi 1. Če vhodni pin ni povezan, je vrednost vhoda avtomatično 1.

  8. S1 1 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 1 0 1 0 0 1 1 0 0 0 0 Output Input 2 Input 3 Input 1 S2 S3 H1 NOR S1 >1 S2 H1 S3 x NOR (not-OR) function A look at the circuit diagram shows that the light H1 is only on, when the normally closed contact S1 and S2 and S3 are not switched. • The circuit to the right is called NOR logic. • In words when S1 or S2 or S3 are switched, the light is not on. • Symbol for this connection is . Integrated functions Series circuit normally closed contact Logic table for NOR block: • Izhod funkcije NAND je 1, če so vsi vhodi 0. Če vsaj en vhod dobi vrednost 1, je izhod 0. Če vhodni pin ni povezan, je vrednost vhoda avtomatično 0.

  9. S1 S2 1 1 0 1 1 0 0 Input 1 0 1 1 Output 0 0 Input 2 H1 =1 S1 H1 S2 XOR function A look at the circuit diagram shows that the light H1 is only on, when only one of either S1 or S2 is switched. This circuit is called XOR logic. In words when either contact S1 or contact S2 are switched, the light is on. Symbol for this connection is . Integrated functions XOR Logic table for XOR block: • Izhod funkcije XOR je 1, če sta oba vhoda različna. Če vhodni pin ni povezan, je vrednost vhoda avtomatično 0.

  10. S1 K1 Output Input 1 0 1 0 1 H1 1 H1 S1 NOT function A look at the circuit diagram shows that the light H1 is only on, when the switch S1 is not switched. This circuit is called NOT logic. Symbol for this connection is . NOT Integrated functions Logic table for NOT block: Output is 1, when the input is 0, i.e. NOT inverts the status at the input. The advantage of NOT is for instance: You will not need a normally closed contact any more for LOGO!. You can use a normally open contact and change it with NOT to a normally closed contact. If the input pin of this block is not connected, the status is automatically 1.

  11. Threshold trigger Analog amplifier On-/ Off-delay Multiple functionswitch Analog comparator Analog threshold trigger Retentive On-delay On-delay Off-delay Pulse generator Pulse relay Shift register Analog differential trigger Stairwaylighting switch Random generator Latching relay Analog watchdog Weeklytimer Analog MUX Yearlytimer Ramp PI controller Softkey Message text Up/Downcounter Wiping relay(pulse output) Hourscounter Edge triggeredwiping relay Special functions - overview Timer Analog Integrated functions Miscellaneous Counter 28specialfunctions

  12. S1 K1 K1 M Diagram: Trg Q T T Ta (Timer active) Timer – On-delay A look at the circuit diagram shows that the motor only starts after expiry of the delay time. This function is called On-delay. In words the motor will be switch on with a programmed ON delay time. Symbol for this function is . Integrated functions Opis funkcije: • Izhod sledi vhodu s časovno zakasnitvijo. • S prehodom vhoda Trg iz 0 v 1 se proži časovnik. Če je trajanje vhodnega signala Trg zadosti dolgo (>T), se izhod postavi na 1 po izteku časa T. • Izhod se postavi na 0, če se vhod Trg postavi na 0. • Če se vhod Trg postavi na 0 pred iztekom časa T, se časovnik resetira. • Pretečeni čas se resetira tudi v primeru izpada napajanja.

  13. S1 K1 K1 M Diagram: Trg Ta R T T Q (Timer active) Timer – Off-delay A look at the circuit diagram shows that the motor only stops after expiry of the delay time. • This function is called Off-delay. • In words the motor will be switch off with a programmed OFF delay time. • Symbol for this function is . Integrated functions Opis funkcije: • Ko ima vhod Trg vrednost 1, se izhod Q takoj postavi na 1. Ko se vrednost vhoda Trg spremeni iz 1 na 0, se proži časovnik. V času trajanja časovnika izhod ostane na 1. Ko časovnik doseže nastavljen čas (Ta=T), se izhod Q postavi na 0. • S ponovnim vklopom in izklopom vhoda Trg reštartamo časovnik Ta. • Z vhodom R (Reset) lahko resetiramo časovnik Ta in izhod pred iztekom trajanja časovnika.

  14. K2 S1 K1 M K1 K2 Diagram: Trg Q TH TL Timer – On-/Off-delay A look at the circuit diagram showsthat: • when S1 is closed, contact K1 closes with a delay time and the motor runs. • when S1 is opened, contact K2 opens with a delay time and the motor stops. This function is called On-/Off-delay. In words the motor is switched on and off with a programmed delay time. Symbol for this function is . Integrated functions Opis funkcije: Po spremembi vhoda Trg iz 0 v 1 začne teči časovnik TH. Če ostane vrednost vhoda Trg na 1 ves čas trajanja TH, se izhod postavi na 1 po izteku časa TH (izhod sledi vhodu z zakasnitvijo). Ko se vrednost vhoda Trg vrne na 0, začne teči časovnik TL. Če ostane vrednost vhoda Trg na 0 ves čas trajanja TL,se izhod postavi na 0 po preteku časa TL (izhod sledi vhodu z zakasnitvijo).

  15. K2 K1 S1 K1 S2 K1 K2 M Diagram: Trg R T Q Ta Timer – retentive On-delay A look at the circuit diagram shows that the motor M starts delayed after pressing the pushbutton S1. Pushbutton S2 (n.c. contact) stops the motor again. This function is called retentive On-delay. Symbol for this connection is . Integrated functions Opis funkcije: • Po spremembi vhoda Trg iz 0 v 1 začne teči časovnik Ta.Izhod Q dobi vrednost 1 po izteku časa Ta. • Izhod Q lahko dobi vrednost 0, če je na vhodu R vrednost 1. • Ko dobi izhod Q vrednost 1, nadaljnje spreminjanje vrednosti vhoda Trg nima vpliva na izhod Q.

  16. T1 S1 Diagram: Trg Ta H1 T1 Q Timer – wiping relay (pulse output) A look at the circuit diagram shows that the light H1 is only on, when the switch S1 is closed, but only as long as the set time at timer T1. Symbol for this connection is . Integrated functions Opis funkcije: • Ko dobi vhod Trg vrednost 1, se izhod Q takoj postavi na vrednost 1, istočasno prične teči čas Ta. Po izteku časa Ta se vrednost izhoda Q postavi na 0 (pulse output). • Če bi se vrednost vhoda Trg spremenila iz 1 v 0 pred iztekom časa Ta, bi se vrednost izhoda takoj spremenila iz 1 v 0.

  17. T1 S1 T1 H1 T1 Diagram: Trg T T Ta Q Timer – edge triggered wiping relay A look at the circuit diagram shows that the light H1 remains on for the time specified on the timer T1 when the switch S1 is closed. Symbol for this connection is . Integrated functions Opis funkcije: • Ko dobi vhod Trg vrednost 1, se izhod Q takoj postavi na vrednost 1. , istočasno prične teči čas Ta. Po izteku časa Ta se vrednost izhoda Q postavi na 0 (pulse output). • Če bi se vrednost vhoda Trg spremenila iz 0 v 1(retriggering) pred iztekom časa Ta, bi se časovnik Ta resetiral in izhod bi obdržal vrednost 1.

  18. Wed Fri Sa So On Off Mon Tue Thurs : 16 05 Cam 1 07 30 Cam 2 08 : 00 12 00 Cam 3 10 : 00 12 30 Wednesday Monday Timer – weekly timer The output is controlled via a specified on–/ off–date. The function supports any combination of weekdays. You select the active weekdays by deselecting the inactive days. Integrated functions Description of the function: • Every weekly timer has three cams. You can configure • a time hysteresis for each cam. Within the cam setting • you specify the on/ off times.

  19. On 05.10 Off 10.20 Aug Dec Jan Feb Mar Apr May Jun Jul Sep Oct Nov Timer – yearly timer Description of the function: • Every yearly timer has an on- and off-timer. At the specified on-time the yearly timer switches on the output. At the specified off–time the yearly timer switches off the output. The off–date specifies the day on which the output is reset to 0 again. When you tick the option field “Every month”, then the yearly timer switches on or off at a specified day each month. Integrated functions 15.05.2005 08.11.2005 08.11.2005 15.05.2005

  20. En Inv Q pulse period /pause width Timer – pulse generator • The pulse profile of the output can be customized via pulse/ pause ratio. Symbol for this function is . Diagram: Integrated functions Opis funkcije: • Parametrizacija funkcije omogoča nastavitev trajanja pulzov in trajanja preslodkov (pavz) med posameznimi pulzi. • Vhod En proži nastajanje izhodnega signala. • Vhod INV omogoča invertiranje izhoda. • Časovne periode se lahko nastavljajo v sekundah, minutah ali urah.

  21. En Q Q max. ON delay /max. OFF delay Timer – random generator • With a random generator the output is switched on and off again within a specified time. Symbol for this function is . Diagram: Integrated functions Opis funkcije: • S spremembo vrednosti vhoda En iz 0 v 1 prične teči čas “ON delay”, ki ima naključno vrednost. Izhod Q dobi vrednost 1 po izteku časa “ON delay”, če je vhod En aktiven (vrednost 1) vsaj v trajanju časa “ON delay”. Če se vrednost vhoda En postavi na 0 pred iztekom časa “ON delay”, se časovnik resetira. • Ko dobi izhod Q vrednost 1, in se vrednost vhoda En spremeni iz 1 v 0, prične teči časovnik “OFF delay”. Po izteku časa “OFF delay” se vrednost izhoda Q postavi na 0.

  22. Trg Ta T (OFF delay) 1s Q 15s Timer – stairway lighting switch • The input pulse (edge control) starts a specified time. The output is reset on expiration of this time. Prior to the • expiration of this time (e.g. 15 s) an off pre–warning is generated. Symbol for this function is . Diagram: Integrated functions Opis funkcije: • Vhodni pulz na vhodu Trg postavi vrednost izhoda Q na 1, istočasno prične (po koncu pulza) teči časovnik T(OFF). Po izteku časovnika T(OFF) se vrednost izhoda Q postavi na 0. • Warning: npr. 15 s pred iztekom časa T(OFF) se izhod Q postavi na 0 v trajanju npr. 1 s. • Če se na vhodu Trg pojavi nov pulz v času trajanja T(OFF), se časovnik resetira in prične teči znova (retriggering option).

  23. Trg Q 5s >20s Timer – multiple function switch • Switch with two different functions: • Pulse switch with off delay • Switch (continuous lighting) Symbol for this function is . Diagram: Integrated functions Opis funkcije: • Pulz na vhodu Trg postavi vrednost izhoda Q na 1. • Če je pulz krajši od “continuous lighting time”, se izhod Q postavi na 0 po izteku “off delay”. • Če je pulz enak ali daljši od “continuous lighting time”, se izhod Q trajno postavi na stanje 1. • Če se vhod Trg ponovno spremeni iz 0 v 1 in nazaj na 0 (pulz), se vrednost izhoda Q postavi na 0 (izklop).

  24. S1 H1 Cnt Dir 6 6 5 5 5 4 4 4 3 3 3 3 2 2 2 1 1 Counter 0 R Q Counter – Up and Down counter A look at the circuit diagram shows that the switch S1 triggers the counter pulses. Switch S2 determines whether the counter increases or decreases. When the counter status reaches a value >= 5, the light switches on. Diagram: Integrated functions S2 - + C1 >=5 Opis funkcije: • Z vsakim pozitivnim prehodom signala na vhodu Cnt se interni števec poveča (vhod Dir=0) ali zmanjša (vhod Dir=1) za vrednost 1. • Izhod Q dobi vrednost 1, ko je vrednost internega števca večja ali enaka nastavljenim parametrom. • Z vhodom R resetiramo interni števec in izhod Q. Ko je vrednost vhoda R=1, je izhod Q=0 in vhod Cnt ne spreminja stanja internega števca.

  25. R En Ral Q MN = MI 3 3 2 2 1 1 MN = 0 0 0 4 3 2 1 OT Counter – hours counter Integrated functions Opis funkcije: • Števec delovnih ur spremlja stanje vhoda En.Ko je vrednost vhoda En=1, se spreminjata vrednosti števcev “operation time” OT in “time–to–go” MN. • Izhod Q dobi vrednost 1 ko je vrednost“time–to–go” MN = 0. • Vhod R resetira izhod Q in “time-to-go” števec na nastavljeno vrednost MI, interni števec OT pa se ne resetira. • Vhod Ral resetira izhod Q in “time-to-go” števec na nastavljeno vrednost MI, tudi interni števec OT se resetira.

  26. Fre > On Fre > Off Fre < Off Fre < On Q Fre =12 Fre = 5 Fre = 3 Fre = 5 Fre gate time On = 10 Off = 4 Counter – threshold trigger • The output is switched on and off, depending on two specified • frequencies. Symbol for this function is . Diagram: Integrated functions Opis funkcije: • Threshold trigger opazuje signale na vhodu Fre in šteje število pulzov na vhodu v času trajanja ene periode (gate time). • Izhod Q dobi vrednost 1, če je število izmerjenih pulzov v eni periodi večje od nastavljene vrednosti “ON threshold”. • Izhod Q dobi vrednost 0, če je število izmerjenih pulzov v eni periodi manjše od vrednosti “OFF threshold”. • On : is the ON threshold. It may be between 0000 and 9999. Off : is the OFF threshold. It may be between 0000 and 9999. Gate time: is the time interval during which the pulses at Fre are measured. It may be 00.05s and 99.95s.

  27. Analog – analog threshold trigger Diagram: Opis funkcije: Izhod Q dobi vrednost 1, če se analogna vrednost na vhodu Ax giblje med mejama “on threshold” in “off threshold” (histereza). • Funkcija bere analogno vrednost na vhodih AI1 do AI8 kot vrednost med 0 in 1000. Tej vrednosti se doda ”offset parameter”, rezultat se množi z “gain parameter”. Integrated functions

  28. Analog – analog comparator Opis funkcije: • Funkcija izračuna razliko med vrednostmi vhodov Ax-Ay. Razliki se prišteje “offset parameter”, rezultat se množi z “gain parameter”. • Če izračunana vrednost preseže nastavljeno zgornjo mejo, dobi izhod vrednost 1. Izhod Q dobi vrednost 0, lp vrednost pade pod nastavljeno spodnjo mejo. Integrated functions Diagram:

  29. Analog - analog differential trigger Opis funkcije: Funkcija bere analogno vrednost z vhoda Ax. Prebrana vrednost se množi z “gain parameter” in se ji prišteje “offset parameter” IzhodQ dobi vrednost 1, če je opazovana vredbost vhoda znotraj meja, ki jo določata parametra “On threshold” in “Differential” ( ). Integrated functions Diagram: Timing diagram A: Function with negative differential delta value Timing diagram B: Function with positive differential delta value

  30. Analog – analog watchdog Opis funkcije: Ob vsakem prehodu vhoda En iz 0 v 1 se shrani vrednost vhoda Ax. Shranjena vrednost se imenuje “Aen”. Izhod Q dobi vrednost 1, če je vhod En=1 in se vrednost na vhodu Ax razlikuje od Aen za več kot nastavitev “threshold-difference). Merjenje Ax in Aen poteka na enak način, kot v ostalih primerih (gain, offset). Integrated functions Diagram:

  31. Analog – analog amplifier Opis funkcije: • Funkcija bere analogno vrednost na vhodu Ax. Merjenje Ax in Aen poteka na enak način, kot v ostalih primerih (gain, offset); z nastavljanjem “Gain” lahko vplivamo na vrednost izhoda. Integrated functions

  32. Analog – PI controller Description of the function: • If the input A/M is set to 0, then the special function sets output AQ with the value that is set with parameter Mq. If the input A/M is set to 1, then automatic mode commences. As an integral sum the value Mq is adopted, the controller function begins the calculations of the formulas. • The updated value PV is used within the formulas. Updated value PV = (PV * gain) + offset • If the updated value PV = SP, then the function • does not change the value of AQ. With a disturbance, AQ continues to increase / decrease until the updated value PV again corresponds to SP. The speed with which AQ changes depends on the parameters KC and TI. If the input PV exceeds the parameter Max, then the updated value PV is set to the value of Max. If the PV falls short of the parameter Min, then the updated value PV is set to the value of Min. If the input R is set to 1, then the AQ output is reset. As long as R is set, the input A/M is disabled. The sampling time is fixed at 500 ms. Integrated functions

  33. Analog – PI controller Parameter: • Sensor: Type of sensor used • Min: Minimum value for PV • Max: Maximum value for PV • Gain: Gain for PV • Offset: Zero offset for PV • SP: Set point assignment • Mq: Value of AQ in manual mode Parameter sets: applied presets for KC, TI and Dir • KC: Gain • TI: Integral time • Dir: Action direction of the controller Number of decimal places in message text Integrated functions

  34. Analog – PI controller Parameter sets: To simplify the use of the PI controller, parameters for KC, TI and Dir are preset as sets for the following applications: Integrated functions Parameters can manually be specified via the parameter set “User defined”.

  35. Analog – ramp Description of the function: • At the analog output, this special function starts up one of two levels or offset. Here you can set how quickly the level should be reached. • If the input En is set, then the function issues the value • StSp + offset at output AQ for the first 100 ms. • Then, depending on the connection of Sel, the function • runs from value StSp + offset to either level 1 or level 2 at the acceleration set in Rate. • If the input St is set, the function runs to the value StSp + offset at the acceleration set in Rate. Then the function issues the value StSp + offset at output AQ for 100 ms. Finally offset is issued at output AQ. • If the input St is set, the function can only be restarted once the inputs St and En have been reset. If input Sel has been changed, depending on the connection of Sel, the function runs from level 1 to level 2 or the other way round. If the input En is reset, the function immediately issues offset at output AQ. The analog value at the output is recalculated every 100 ms. Integrated functions

  36. Analog - ramp Parameter: • Gain: Gain for AQ in message text • Offset: Zero offset for AQ in message text • L1 and L2: Levels to be reached • Maximal output value: Maximum value that must not be exceeded under any circumstances • Start/ stop offset: value that is issued for 100ms in addition to parameter • offset after starting the function • and before reaching the offset value (prompted by input St). This parameter is intended for controlling motors. • Change speed: Acceleration with which level 1, level 2 or offset is reached. Steps/ second are input. • Number of decimals Integrated functions

  37. Analog - ramp Diagram: Integrated functions

  38. Analog – analog MUX Opis funkcije: • Izhod AQ dobi eno od 4 prednastavljenih vrednosti. Ko je vrednost vhoda En=1, je izhod funkcije ena od štirih vrednosti, kar krmilimo z vrednostjo vhodov S1 in S2. • Če je vrednost vhoda En=0, je na izhodu AQ vrednost 0. • Vrednosti V1 do V4 so lahko tudi reference na druge analogne funkcije, katerih izhodi se spreminjajo med izvajanjem programa. Integrated functions

  39. K1 S1 K1 S2 K1 K2 M Diagram: S R Q Miscellaneous – latching relay A look at the circuit diagram shows that the coil K1 has current with the pushbutton S1. The switch K1 closes (latch). This function is called latching relay. Symbol for this connection is . Integrated functions Opis funkcije: Vhod S postavi izhod Q na 1, vhod R postavi izhod Q na 0.

  40. S1 S2 K1 H1 K1 Diagram: Trg R Q Miscellaneous – pulse relay A look at the circuit diagram shows that the light H1 is switched on and off with the pushbuttons S1 or S2. This function is called pulse relay. In words a short pulse at S1 or S2 switches the light H1 on and off. Symbol for this connection is . Integrated functions Opis funkcije: • Izhod Q spremeni svojo vrednost ob vsakem prehodu vhoda Trg iz 0 v 1.Možno je resetiranje izhoda z vhodom R.

  41. s Motor on I : 0.. 123456789 1..0123456789 2..01234 1 Alarm! Current Temp 97 °C 3 4 2 ESC OK LOGO Miscellaneous – message text Display of a configured message text in run mode. Symbol for this function is . Integrated functions Description of the function: • With a 0 to 1 transition of the input signal and when the system is in RUN, the corresponding message text is output to • the display. The message text is hidden when the status of the signal at input changes from 1 to 0. When multiple message text functions are triggered with • En=1, the message text that has the highest priority is shown. Changing between the standard display and the message texts display is possible by using the keys and . If “acknowledge message” is chosen, the respective message text will be hidden by pressing any key on LOGO!, if En=0.

  42. Miscellaneous – shift register Diagram: Description of the function: • The function reads the value at input In with a positive edge at input Trg. This value is applied to shift register bit S1 to S8, depending on the shifting direction: • Shift up: The value at input In is set at S1; the previous value at S1 is shifted to S2; the previous value at S2 is shifted to S3 etc. • Output Q returns the value of the configured shift register bit. If retentivity is disabled, the shift function restarts at S1 to S8 after a power failure. When enabled, retentivity always applies to all shift register bits. S4 = Q (example) Integrated functions Shift up Shift down

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