DE1235994B - Arrangement for reading out pulse memories and counters with counter magnets or step switches as control units within the memory - Google Patents

Description

Arrangement for reading out pulse memories and counters with counting magnets or step switches as control units within the memory The invention relates on the control of the reading of memories for electrical impulses Step switches built into the memories.

Both memory for electrical impulses and readout arrangements for the memory content have long been known.

Two basic principles for the memory structure and the reading process are applied. In one type of memory, the stored number of pulses is in the switch positions of the individual memory stages, via which a read-out voltage is routed to certain lines representing the individual digits one after the other during read-out. The second type of storage consists of memory stages (eg Rollenzählwerkdekaden.), The contents with the help of read pulses gradually - is counted sequentially - often decadal. In most cases, the complementary number required to reach the zero position is determined. Both types of memory and readout devices can also in purely electronic registers transistor-based today - be realized - but then the binary number system. In the known arrangements, pulse memories are read out from a remote control center in that a control system present in the control center first selects the memory to be read out and thereby successively connects the individual stages of this memory to the readout device. For this it is necessary that a line is led out from each memory for each stage to be read out to the control center, at least up to a switching point in the case of large distances. A multi-pole changeover relay must be available in the control center or at the changeover point for each storage tank. The routing and wiring are varied and complicated, especially if, in addition to the stored number of pulses, certain fixed key figures - z. B. a measuring point number - are to be read out with.

But if you do without the Auslesuno, of pulse memories on the Subdivision into levels. then read-out impulses have to go to the highest stage for as long be given until the entire memory is counted up to zero. But that leads generally to an inadmissibly long readout time per memory.

Arrangements are also known in which the readout of the individual Stages of a store are done simultaneously by adding counting pulses in parallel to all Storage levels are given. This shortens the readout time. To have to but also here separate lines are routed to each individual storage stage, to report the zero crossings of each storage stage to the readout center.

Disadvantages of the previous arrangements are either in one complicated wiring and a related extensive central Control system or in a long readout time.

The invention is based on the object, the number of lines from to minimize the storage of the headquarters. It also leads that at the same time Control system in the headquarters falls back on a few functions. She achieves this by that the control of the readout process is carried out by step switches, the injeden individual memory are built in. These are coming from the head office or actuated control pulses generated in the memory itself and thereby close the individual storage levels of the stored number of pulses or others to be read out fixed numbers one after the other for reading to the control center. The step switch also do those in the previous orders in the headquarters or on Changeover relays are superfluous. When saving, their content is read out by voltages via contact positions, the central one then exists Control system only consists of a measuring point switch that reads out the Selects memory, and the registration device, which also the control pulses for the memory and the subsequent readout voltages generated, e.g. B. a punch card printer with an accompanying program card.

To characterize the invention, three exemplary embodiments are explained in more detail: A b b. 1 shows an arrangement for storing counting pulses and reading out the stored value together with a five-digit measuring point number by means of a voltage; the memory is deleted immediately after the readout, A b b. 2 shows an arrangement for storing counting pulses in one of two switchable individual memories and reading out the stored value in the individual memory that is currently idle by counting with pulses; the read out individual memory is deleted at any time, A b b. 3 shows an arrangement for storing counting pulses and reading out the stored value together with a six-digit measuring point number by counting with pulses; the memory is deleted immediately after the readout.

The switching element Z, 4 or ZA 'characterizing the invention is the same in all three examples. To A b b. 1 a) Storage of initial state: za0, zb0, ze0, zdO, ze0 closed. za 1 to za 10, zb 1 to zb 10, zel to ze10, zdl to zd10, zel to ze10 open.

The first counting pulse runs through (+), a, za0, IB, - and opens the contact -bO by energizing the pulse coil IB in the counting magnet ZB, which stores the units of the measured value, and closes zbl.

The next counting pulses run over the same path and switch on switches zb2 to zb9 one after the other in ZB. The tenth counting pulse closes e.g. 10. This energizes relay B: +, :: b10, B, - and energizes the extinguishing coil LB via +, bl, LB, -.

As a result, the counting magnet ZB is returned to the starting position, i.e. i.e., zb0 is closed, zbl to zb10 are open. At the same time, the pulse coil le of the counting magnet Jc storing the tens digits of the measured value is excited.

+, b2, Je, - This opens contact ze 0 in ZC and closes ze 1. The pulse storage process continues in a similar way in ZD (hundreds of digits of the measured value) and ZE (thousands of digits of the measured value).

A reset relay E is superfluous in JE because it is assumed that the stored value has a maximum of four digits.

b) Readout initial state: za0 closed. zal to za10 open.

At the end of the storage z. B. the number of pulses 2386 stored, i. H.

zb6, ze8, zd3, ze2 closed, all other contacts in ZB, ZC, ZD, ZE open. A switching pulse comes from the readout center and excites the pulse coil JA of the counting magnet ZA which controls the reading: (+), C, JA, - This opens the contact za0 in ZA and prevents further counting pulses from running to the one decade ZR. At the same time, zal closes in ZA. The following of the readout central readout voltage reads the first digit of the hardwired in the memory on the marshalling M f ünfstelligen measuring point (shown, for example, the No. 57,305th.) Of (+), b, za 1, m, 5.

A »5t is registered in the control center via line 5.

This is followed by the next switching pulse and excites the pulse coil JA: (+), C, JA, -.

This opens zal in ZA and closes za2. The following read-out voltage now runs via (+), za2, 5, 7 to the control center and registers a * 7 «there. This continues with repeatedly repeated sequences of switching pulse readout voltage until the last readout voltage has registered a "6" as the units digit of the measured value that has just been saved via (+), b, za9, zb6, 6 in the central unit.

Now there is a last switching pulse, which opens contact za9 via M, C, j4, - in ZA and closes za10. This energizes relay A : +, za10, A, -, and the extinguishing coils LA to LB of all counting magnets are energized: +, al, LA, a2, LB, a3, Lc, a4, LD, a5, LE, Das causes that all counting magnets are deleted and the state at the beginning of the storage is restored. Since now za 0 in ZA is closed again, the counting pulses from the measuring point can be stored again in ZB to ZE.

To A b b. 2) The total memory consists of two four-digit individual memories with the roller counter decades RB, RC, RD, RE or RB ', RC, RD', RE 'for storing a four-digit number of pulses. These roller counter decades switch a number roller one place each time its pulse coil is excited.

The initial state is the position shown in which the counting pulses are stored in RB 'to RE', while RB to RE are available for reading. RB 'to RE' are set to zero. a) Storage A measured value pulse runs through (+), a, a ' 1, JB', - and excites the pulse coil JB 'of the egg decade RB'. As a result, RB 'switches from position 0 to 1. This is repeated until the tenth pulse RB' switches from position 9 to 0 again. During this movement, the wiping contact rb'l closes briefly. The pulse coil Je ' of the decade RC is excited: rb'l, a'2, Jc', -.

In doing so, RC switches from position 0 to 1. This continues over the four roller counter decades RB ' to RE' as long as counting pulses from the measuring point - ie. H. from a - to arrive.

b) Readout In RB to RE z. B. the number of pulses 7038 is stored. A first readout pulse comes from the readout center and energizes the relay G: (- #), x, G, fl, y, (-).

This closes contact gl and excites the pulse coil JB of the one-decade RB: +, gl, d2, k2, zal, JB, As a result, the number roll in RB is advanced to the next digit, in the example to 8. The subsequent readout pulses from the control center accumulate continue the same way to the pulse coil RB. The readout pulses are counted in the control center in a pulse memory that can be read out by means of voltage.

During the passage of the number roll from 9 to 0 in RB the relay F is energized by the wiping contact rbl: +, rbl, a2, e2, p, F, -.

Contact fl in the line to the control center for the readout impulses opens briefly and interrupts an impressed current that otherwise flows via (+), x, G, fl, y , which is just so large that it certainly does not pull relay G . The interruption of the impressed current is detected in the control center and is used there to block the path for the generated readout pulses to the pulse memory running in the control center until a total of ten readout pulses have run over (+), x, G, fl, y are.

In the memory to be read out, the number roll in the roll counter decade RB has returned to its original value 7 after the tenth disconnection pulse. Since all incoming design pulses via (+), x, G, fl, y, and further via +, gl, d2, JA, - excite the pulse coil JA of the roller counter decade RA required to control the decade switching during the design, the Number scroll in RA from 9 to 0 after the tenth readout pulse briefly i2 the wiping contact ral closed. As a result, relay H is energized: +, ra 1, H, contact hl closes and energizes the pulse coil JA of the reading-controlling counting magnet ZA: +, h 1, a 6, JA, -.

This opens the contact tongue zal of ZA, and it closes za2. The diode v (or v ') prevents the just described pulse generated by h 1 from also running on the pulse coil JA' (or JA).

Now the next decade roller counter RC is on the path of the readout impulses turned on. After every ten read impulses, a switched on for the next decade to store the readout pulses.

If the eleventh readout pulse arrives from the control center, the process just described for RB is repeated with RC and so on, until the entire numerical value stored in RB to RE is transferred to the buffer in the control center as a complement to ten.

After the 40th readout pulse has arrived, ZA is switched on via +, h 1, a 6, J.4, as described above; za4 opens, za5 closes, relay B is excited: +, za5, B, -, contact bl picks up and excites relay E: +, b2, E, d3, -.

The normally closed contact d3 is closed because both the contact tongue za9 and za'9 are open and D is not energized. Relay E maintains itself by closing el: +, el, E, d3, The changeover contact e2 switches from path p to path q at the same time.

c) Deletion After reading out the roller counter decades AB to RE , the originally stored value is available - z. B. 7038 - on again. It can now be deleted at any time. To erase the decades RB to RE, the control center issues ten erase pulses per decade. The deletion process proceeds in a similar way to the read-out process, only the contacts zal, za2, za4 are now replaced by the respective parallel-connected contacts bl or -a6 or za7 or za8 when reading out. The deletion process differs from reading out, however, in that the wiping contacts rbl or rel or rdl or rel that briefly close when the number rolls are switched from 9 to 0 in RB, RC, RE or RD are no longer relay F, but relay K excite, e.g. B.

+, rbl, a2, e2, q, K, h2, -. The relay K then holds itself: +, kl, K, h2, - contact k2 is opened and no longer lets through the erase pulses coming from the control center since the zero position of the roller counter decade RB has been reached. RB remains at 0 . However, since RA always counts all ten erasing pulses per decade, the wiper contact ra 1 is briefly closed when the number roll in RA passes from 9 to 0.

In the same way as when reading out, the relay H and thus the pulse coil J, 1 are energized to switch ZA. When relay H is energized, however, the normally closed contact h2 also opens and releases the self-holding relay K again. As a result, the normally closed contact k2 closes again and allows the next extinguishing pulses to arrive at the next decade of the roller counter, which has now been switched into the pulse path. The last extinguishing pulse - i.e. the fortieth - excites the pulse coil J # 4 again via relay G, controlling roller counter RA, relay H, as already described above. As a result, contact tongue za8 opens in ZA and za9 closes. Relay D is energized: -T-, za9, D, -.

Contact d3 opens and releases the self-holding relay E. The associated changeover contact e2 switches back from path q to path p . In addition, contact dl closes and contact d2 opens, which paves the way for the next impulse coming from the control center via (+), x, G, fl, y, and via +, gl, dl, vi J-11 to the pulse coil YES and in parallel via +, gl, dl, v ', YES', - is switched through to the pulse coil YES '. d) Switchover In the way just described, it is now possible to switch the counting magnet ZA further by means of a switchover pulse from the control center, ie . Open contact tongue za9 and close za10. This energizes relay C - # -, za10, C, -.

Contact el closes and excites the extinguishing coil LA: -, el, LA, - This opens za10 again and closes za0 at the same time. Relay A is energized - +, --aO, A, -.

Contact a 1 closes, the changeover contacts a2, a3, a4, a5 switch, and thus ZA and RB to RE are in the same position as at the beginning of the description ZA 'or RB'to RE'. This means that the counting pulses now run on the ones decade RB. In addition, the path for future incremental pulses from H via h 1 to YES is interrupted by opening the normally closed contact a6.

Second, the switchover pulse from the control center has excited the pulse coil J4 'of the counting magnet ZA'. This opens contact za'0 and closes za'l. The previously energized relay A ' drops out. Contact a'l opens and blocks the path for the counts to one's decade RB '. The changeover contacts a'2 to a'5 switch from the position shown to the same position as previously a2 to a5.

The normally closed contact a'6 closes and prepares the way for future incremental pulses from H via hl to pulse coil JA ' . ZA 'and RB' to RE ' are thus in the read-ready position as at the beginning of the description ZA or RA to RE.

ZuAbb- 3 The counting magnet ZA is again used to control the reading. The purpose of the counting magnet ZB is to enable a six-digit hardwired measuring point number to be read out by means of pulses.The roller counter decades RC, RD, RE and RF are of the same type as for A b b. 2 described, whereby in A b b. 3 RC denotes the decade of one, RD the decade of ten, RE the decade of hundreds and RF the decade of thousands.

a) Storage of the initial state: ZA and ZB are both deleted, i.e. the contact blades zal to za10 and zbl to zb10 are open, za0 and zb0 are closed. Relay A is energized: +, za0, A, -.

As a result, the changeover contacts a2, a3, a4 and a5 are in the position shown. Contact a 1 is closed. Counting pulses from the measuring point excite the pulse coil Je in RC: (+), a, al, Je, -.

When the number roll passes from 9 to 0 , the wiper contact rel is briefly closed by RC and the pulse coil JD from decade RD is excited via +, rel, a3, e, JD. The number scroll in RD is thereby incremented from 0 to 1 .

The total number of pulses is stored in the decades RC to RF in an analogous manner.

b) Read-out If the read-out is to begin with simultaneous resolution of the memory content, the control center issues a switching pulse that excites relay D for the first time: (+), x, D, c3, y, contact dl closes and excites pulse coil J. , 1: +, dl, a2, h, bl. k, YES, -.

As a result, ZA is switched on, za0 opens and zal closes. Relay A drops out, its contacts a3 switch from path a to b, a4 from f to c, a5 from g to d and a2 from h to 1 . At the same time, contact al opens and prevents further counting pulses from going to Je in RC.

The first readout pulse following the switchover pulse from the control center again excites D via (+), x, D, c3, y, (-).

Contact dl closes and excites the pulse coil Je of ZB: +, dl, a2, i, t, JB, This causes the contact tongue zb0 ge # in ZB. opens and zbl closes. The six digits of a measuring point number - the number 760 998 is shown as an example - are wired to the ends 9 to 1 of the contact blades zbl to zb9. Since the reading by means of pulses is always carried out by counting the stored value up to 0 , the fixed wiring of the measuring point number must also be carried out accordingly. For example, the first digit of the number, a seven, must be wired to the contact tongue zb3. Because if three readout impulses have arrived at JB from the control center, zb3 is the only contact tongue in ZB that is closed and relay C is energized: +, zal, in, 7, zb3, C, - contact e2 closes and excites the pulse pair J, 4 from ZA: +, c2, bl, k, J, 1, The contact tongue zal is opened and za2 is closed. Simultaneously with e2, contact el closes and energizes the extinguishing coil LB of ZB: This clears the counting magnet LB, so that contact tongue zb0 is closed again, while contact tongue zbl to zb10 are open again. As a third contact, the normally closed contact c3 in the pulse line y to the control center is opened when relay C is energized. As a result, an impressed current that is always flowing in this line is interrupted, which is just so great that it can no longer pull the relay D with certainty. The interruption of the impressed current is used in the control center to switch the read-out pulses to the next decades in a pulse memory that can be read out by voltage.

In an analogous manner, the further readout pulses now coming from the central unit serve to read out all six digits of the measuring point number. As soon as this has happened, contact tongue za6 is open and za7 is closed. The reading of the measured value stored in the roller counter decades RB to RE then begins.

Those x from the center via (+), D, c3, y and on about +, dl, a2, i, s, ZA7, J ( "- current read-out pulses switch the number wheel in RC so long, until the passage of 9 to 0 the briefly applied wiper contact rel energizes relay C : +, rel, a3, b, C, In exactly the same way as before when reading out the measuring point number, the impressed current is now interrupted by e3 in the line y to the control center and forwarding ZA and thus opening of the contact tongue ZA7 and closing ZA8. at the same time closes relay e 1 of relay C and deletes as previously when reading out the measuring point the Zählmagnet ZB. For simultaneously with DER excitation of pulse coils Jc to JF in the Rollenzählwerksdekaden by the readout pulses continue to excite the pulse coil JB in Zählmagneten for example, although this is rotating with the shaft of example, for the reading of the stored measured value meaningless. at the moment of passage of the number wheel in RE v on 9 to 0 the wiping pulse generated via rel closes the contact tongue za10 in the counting magnet ZA and opens za9 via: +, rel, a5, d, C, and further via +, c2, bl, k, YES, relay B is energized: + , za10, B, -.

The changeover contact bl switches from the previous path k to the path L. Contact b2 closes and now enables the last decade of roller counter RF to be read out. As soon as the number roll in R goes from 9 to 0 , the reading is over. The wiping pulse that excites relay C via +, rfl, C, - causes the quenching coil L.4 in ZA to be excited: +, c 2, b 1, 1, L.4, -.

Counting magnet ZA is deleted. This becomes the beginning of the description existing condition restored.

Claims (2)

CLAIMS: 1. An arrangement for reading of memories, the electrical pulses sum, d a d u rch in that the control of the read-out operation is performed in each memory by step switches include as components individual to each memory, coming through from the central office or in the Memory self-generated control pulses are activated and thereby switch on the individual memory levels of the stored number of pulses or fixed numbers to be read out one after the other for reading to the control center. 2. Arrangement according to claim 1, characterized in that the step switches controlling the reading act either electromagnetically or mechanically or fully electronically. 3. Arrangement according to claims 1 and 2, characterized in that the first control pulse coming from the read-out point in the memory causes the first contact (za0 or za'0) of the readout-controlling step switch (ZA or ZA '), which is closed in the rest position, opens and thereby interrupts the path for the counting pulses from the measuring point directly or indirectly via a suitable switch until the reading of the memory is completed and the first contact of the stepping switch is closed again after the step switch controlling the reading in the memory has been reset. 4. Arrangement according to claims 1 to 3, characterized in that via the respectively closed contact (zal to za9) of the step switch (ZA) which is advanced by control pulses from the control center, built into the memory and there which controls the readout, a readout voltage always following the control pulse (b) is routed via the fixed wiring of the individual digits of the measuring point number or other fixed numerical values belonging to the measuring point and via the contacts that have just been closed for the individual digits of the stored pulse sum. 5. Arrangement according to claims 1 to 3, characterized in that two combined in one assembly and each of four roller counter decades (RB to RE or RB to RE ') existing pulse memory by two associated step switches (ZA or ZA') controlled that always a pulse memory receives the counting pulses, while the other is read out or reset by incoming readout or reset pulses from the central unit, that these pulses are so long via the successively closed contacts of the step switch controlling the readout or reset to the pulse coils of the roller counter decades to be read out or reset until the digit stored in each roller counter decade reappears after ten read-out pulses have been entered or, in the case of a reset in the roller counter decades, the position 0 is reached. 6. Arrangement according to claim 5, characterized in that the step switch (ZA or ZA ') controlling the readout or resetting of the four readout or resettable roller counter decades is advanced by pulses that after every ten readout pulses coming from the control center when indexing a roller counter decade (RA) also used for control and built into the assembly can be generated from position 9 to 0. 7. Arrangement according to claims 1 to 3, characterized in that a readout controlling step switch (ZA) consecutively (zal to za6) a voltage to the six points of one on the contacts (zbl to zb6) of a second step switch (ZB) wired measuring point number or another constant number belonging to the measuring point and then the pulse coils of the roller counter decades containing the stored measured value (RC to ffl) follow the path of the readout pulses coming from the control center until each roller counter decade is read out and at the same time reset to 0 8. Arrangement according to claim 7, characterized in that the stepping switch (ZA) controlling the reading takes place simultaneously with the resetting of the second stepping switch (ZB) used for wiring the measuring point number and also every time one of the decade of the roller counter is being read out Position 9 to 0 practice r going. Documents considered: German Auslegeschrift No. 1 054 257; German patent application Z 1813 Vllla / 21as (published October 15, 1953); Elektronik, 9 (1958), p. 284; Control engineering, 4 (1960), pp. 130 to 133; Siemens-Zeitschrift, 4 (1955), pp. 220 to 223; Elektronik, 5, (1961), pp. 131 to 139.