DE1921425A1 - Reversible counter - Google Patents

Description

Reversible

The invention relates to a reversible counter, the » AuiVärta counting pads and downward counting pulses can be supplied

Usually, such meters have a Ispulseingang and two Zäiarlchtungseingänge, one of which · in amr Allied counting and amr other in-Abwarts count maintaining a signal · Instead, the pulse counter also two lapulselngänge own "from those of" ine old AufWürts- Lspulaen and the other old downhill Iapul »en is charged.

The known meters of this type are so constructed that they operate cyclically, that is, they weiterschaltsn d »m upper counter end values and the supply of a further AufwSrta-Ziihlijipulaee in their lower counter end value is reached and passed through several times its counting range upon further supply of Aufwärte-Iapuleen. The same applies to the lower end of the counter for the further supply of downward ZilhHepuleen. If this property was not desired, a payer should be allowed to use the counter content “with which there was no risk of the counter final values being increased during the upward or downward payment. Such large counters are, however, correspondingly eufweadlg.

109811/1652

BATH ORIGINAL

The invention is based on the object "one" Indicate counter »with de» on simply © Wels © is guaranteed » that with the up * and downward counting the Ead values of the Counter are not exceeded

This task is accomplished by one of the inventions Locking device assigned to the input »which, when the upper end of the counter is reached, the supply v *» Aufwärfes »Counting impuise & or © when the lower end of the counter is reached, the supply from the downward direction * » Counting elements prevented

The counter can respond to this in its end data Impulses »or more are supplied» to the work area would let pass. In particular, if the upper end value is exceeded, the total amount of the payer will not be destroyed or · when the value falls below the lower Qodwerts, the counter is full Counters the security that the counter limits are not exceeded will·

In practice, such a reversible counter in from binary stages · Xn this connection it is expedient DSSS the locking device on the one hand of the exits of all levels and on the other by a Zählrlchtungssignal influenced is "By monitoring the outputs of all stages can euf easily the upper or «Lower end value of the counter can be determined. When the counting device was sent to "In which the inputs are available" anyway, the locking device could be activated in a simple manner.

In particular, a UXD-Slied can be presented to the counter besides the TMhT impulses the outputs smijfer tf & iteroi * Members are added »the η each assigned to a level of intrusion Incoming and one more Etnfemg have * d # r at the inen IMD member during the upward * «ariilÄaRg and with the other ONIMIUed A slg board is displayed while the countdown is in progress. The one in front of the counter

109811/1652 BATH

connected AND gate then serves as a locking device »which the lapulse only hinduröisl & Stj, even if all the rest »from fulfills the other two UKD-CH of the dependent conditions are. This is not asefer the case when the counter is in one of its bundles is located.

The up-UIID element is zweckaäiSigerweise connected to an output of the binary stage and AbwSrts-UEKD element with the other outputs of the binary stages "where teeMB but · perform an inversion This gives seiir e ^ ä ^ iste © sää &il'iwnssverknüpfungen.

"4-one special advantage eats it" if hen depending voa nuaseris & Zühlerinhalt controlling a Systea with elnea workspace "ASQ ^ sm Grenzein the ZIM @ r-aiidwerten correspond Here, each nucw-'i · chen i. -N: the counter be a bestianter section of the Arbeitsberöicit i 'sx ±. ■■■ ",,., \ t . With this new type of application of the counter * as a device, it is ensured that the working range of the controlled system is not exceeded. So there is no problem "if the ^ of the work area of the controlled system are not adjacent", as is usually the case.

In particular, the ^ vi ^ wt "system can have a number of connected and disconnected parts *>'x ^ mg-m " each of which is in operation ".-.- ^ y ;! dmt mMmrkmshtm corresponds to the content of the counter. Especially with ®iM £ W no ^ clum Lelstungeeteuenißg tauß unaltered is prevented ^ ₈ Sa @ die i «? t.mg when falling below «! the upper limit suddenly goes back a ^ f Hull or suddenly switches to the maximum value if the lower limit is undershot,

ZweekQ & 0 £ ger «$ ls @ are rapid partial services in η groups of 2 ¹¹ " ¹ partial stages and the output signals of the η BlnäretüX.n, ftv: ^ v '^ a each dia associated nte

109811/1652
BAD ORiGiNAL

192U25

Group «. Hienait not only results in a clear assignment the counter outputs for the number of partial services switched on, without using a special decoding device Rather, there is also an even start-up experience of all units for one partial service each

If the meter's output signals are voltages, they can Control a circuit breaker directly, in particular an electronic circuit breaker · As an electronic circuit breaker For example, there is a controlled rectifier available under the trade name TRIAC »in question ·

The invention is explained in more detail below with reference to an execution game shown in the drawing.

A counter 1 has a pulse input 2, which is positive Counting pulses are applied »an upward counting direction» gear 3 »at which a positive voltage for counting up is applied »and a downward counter rc & device input 4» which a positive voltage is applied to count down. The three failures 2 * 4 are dependent on a rule «- device »a schedule or the like supplies input signals.

The counter 1 has three binary counter stages 5, 6 and 7, each consisting of a bistable multivibrator with a sound output a and two outputs b and c, which alternate when a negative pulse occurs at input a, a positive or negative one Discharge voltage · The pulse speed 2 is old connected to a channel a of a NAND element 8 (AND-NOT element). Two other Einginge b and e are connected via lines 9 or · io old the outputs of two NAND gates <n tau 12. · Three Einginge a, b and c of the link 11 are connected to the outputs of the BlnUretufe% 6 "7" c the corresponding three inputs of the link 12 old the outputs

11/16 5 :?

A fourth input d is connected to the upward counting direction input ^ 3 or the / ibvürte counting direction input 4. The input 5a connects directly to the output of the ΠΛΓ: element Q. The inputs 6a and 7a, however, are at the output of MftB members 13 bacv. 14, dl "one-BeIt ₃ ναοί KAlilMJUed 3 via a HICHT element 15 old input pulses and on the other hand via an OR element 16 or" 17 with segmentation rings are influenced by the state of the previous counter stage · For this purpose the OR gate 16 is preceded by two NAND gates 18 and 19. The inputs defilades 18 are aa output 5> c and at the counting direction input 3 * the inputs of member 19 are at the output 5 and at the counting direction input 4 · In

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Let us assume that all counters 5-7 are at IfuH, ie. ask Auegang c a negative -pannung and at the output b drove a positive voltage · Then all the valves 22 are - 24 locked and none of the windings 3o ~ 36 · switched If now a certain power "required is as on the Aufwar ~ TSS input 3 a positive voltage is applied * while 2 positive impulses are fed to the lupulse path «By tUn the first Iüspuls the 2" 1 counter stage 5 is switched to 1, whereby the output c becomes positive and the output b negative. The negative ■ 'f; päimun !? a "Inlet 22a aa the valve 22 conductive and diö" ier V'itifclung 3o two lines are switched on. Remains power not from _f w & zd aaeli some time © in r-iils of Κΐ.αιιιαβ 2 iSiigoÄHa ^ t »M © se ^ switches the I ^s » aut 'iiull, tiöbot the i'aisgoiig c again negative and ₄ , Ij becomes positive »(Ueiehzeix-ig wls. \ X _? Da am Sla ^ ng

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109811/165 2
BAO

the activation and deactivation of counter level 7

Bas !! / UiD element 8 serves as a blocking device which does not send any further pulses to counter 1 ^! i3t when it has reached its end position. It is assumed that the counter has reached its upper end position at which all outputs c of the counter stages are positive, and that a further upward pulse is supplied. Then there is a positive voltage at the inputs a, b and c at the side inputs of the! JAilD element 11 because they are old connected to the outputs c of the counter stages, and at input d, because this is old connected to the up-count direction input 3 As a result, a negative signal is fed to input b of the HAlfö element S, and element 8 fails to pass any Iapuls. Similarly, the NAND element 12 is effective when the lower end position of the counter is reached and a further downward Iopulse should be fed *

The blocking device can be formed by a transistor, a Tyratron or the like, on which a blocking voltage is applied as long as no Iapula is to be allowed through. If the reversible counter is followed by a decoding circuit, the signal used for locking can also be derived from the decoding circuit.

109811 / 1P5? BATH ORIGINAL

Claims (1)

'έ { ν Claims 1, Reversible counter, the upward counting pulse and the downward counting pulse are supplied, characterized by a locking device (8) assigned to the Iiapulseinganc (2), which at When the upper end of the counter is reached, upward counting pulses are supplied bzv /. when the lower end of the counter is reached prevents the supply of downward counters. 2. Counter according to claim 1, characterized in »that it is in on is known to consist of binary levels (5, 6,7) and the Locking device (8) can be influenced on the one hand by the outputs of all stages and on the other hand by a counting direction signal. 3 · 2ähler according to claim 2, characterized ₉ that it AND element is connected upstream (8), the other AND gates are supplied (11 »12) except UEN Zälilicipulsen the outputs of two, the η one each binary stage (5, 6 , 7) have assigned ZJLingangs (a, b, c) and a further input (d), which receives a signal in one UIID element (11) during the upward counting and the other UIID element (12) during the downward count . A. Counter according to claim 5 »characterized in that the upward UIlD element (11) alt one of the outputs (c) of the binary levels and the downward AND element with the other outputs (b) of the binary levels is connected, but both perform an inversion 5. Counter according to one of claims 1-4 »characterized» that in dependence on voa nuatri counter content see a system (3o-36) is controlled with a Arbeiteberelch, whose 109811/1652 Limits correspond to the meter end values. 6 · payer according to claim 5 _t characterized in that the controlled ryateta a number of single "on and off part services (3o - 36), having their respective operating ia located number corresponding to the numerical content of the counter (1). 7. Meter according to claim 5 or 6, characterized in that the partial services are combined in η groups of 2 ** "" partial services and the output signals of the η BlnHrstufe (5 _f 6 * 7) each switch the associated nth group · 8 · Counter according to claim 7, characterized in »that the Au * - gangaaignale of the counter (1) voltages that are direct control a power switch, in particular electronic power switches (22 »23» 24). 109811/1652 8AD ORIGfNAL Blank page