SU518774A1 - Meter monitoring device - Google Patents

Description

(54) DEVICE FOR CONTROLLING COUNTERS

...

The invention relates to digital automatics of measurement and control technology, which can be used for checking binary, binary-decimal counters and counters in other coding systems, both summing (subtracting) and reversible, as well as meters with pulse-phase coding. states

There are known devices for monitoring scrappers, which contain a clock generator, the output of which is connected to the input of the AND, ft / controllable counters connected in series through the OR elements.

However, in the known devices, with the Control, manual operations are required, a failed counter is not indicated, control of the reverse meters is not (provided, not all types of meter failures can be detected.

The purpose of the invention is to expand the functions of the capabilities of the mouth.

This is achieved by the fact that a level distributor, H +1 element;

element, OR-NOT, trigger, to decoders of the initial state E of maximum filling of the counters and I. Additional elements OR, while the device input is connected to the inputs of the initial state of the controlled counters and the level distributor and through the trigger, the AND element and the distributor ; levels connected to control inputs

| reverse controlled counters, the outputs of which are connected to the inputs of the corresponding decoders of the initial state and maximum filling, the outputs of which through additional elements

OR are connected to the inputs of the indication elements E through the element AND LIE-NOT, the element AND and the level distributor to the inputs of the elements OR, the control inputs of the decoders of the initial state and maximum filling, to the input of the trigger and the input + of the display element.

The drawing shows the structure of the proposed device. The device for monitoring C4eTw

Claims (1)

pulse generator 1, Element I 2, K - trigger Hz, distributor 4 levels / elements OR 3 and counters counter and 7, decoders 8 idle state of counters, decoders 9 maximum filling of counters, elements 10 of display, element OR NOT 11. The device operates as follows: The Pulse Start is set to the trident state of the distribution of 4 levels, 7 counters, the irSS is a riger 3 that allows the input of clock pulses through the J element: v input distribution vtel 4, eu in scotch KB reversible ny, vy outputs y1f1sh1en | the level with the bed-, NSh1 is set by reverse, and the polling level is set at the polling input of the decoders of the motor state. If all the counters are in the initial state - the following control cycles are worked out, but if no one is set in the initial state from the counters, then a single level is formed at the output of the corresponding decoder 8, which through element 6 includes the IjDi element and via elements 11 and 2, it forbids the arrival of pulses from clock generator 1 to the input of distributor 4, with the interrogator level 8 distributed over 1 s; the distributor 4 code is fixed with a constant switching on and 10 If the control cycle of the initial state has passed, parallel to the key inputs of elements 5 in parallel, i-count pulses are applied to the entire counter, where the C-length of the binary counter is determined from the ratio, :::,. where K. is the counter size of the counter;) for the two-decimal counter U 1:: :: / :; where is the number of tetrads in the counter. In the next cycle of control of the unit, deisfrators 9 are polled with the output level of the distributor 4, and if the counters are filled, the next control cycle is performed, if in one of the counters the circuit failed, or the counting circuits failed, the loop of the corresponding A single level is formed in the decoder, which then element b includes the indication element 10 and closes element 2 through element 11, while fixing at the output of the distributor 4. The polling level of the decoder 9. In the third cycle from the output will distribute 4 to the input of the first element 5, a single pulse is applied, which successively switches everything into the initial state, then the output of the distributor 4 sets the level by polling the downframe 8th. If the counters are intact, then the next clock is executed, but if the transfer is not propagated, then the appropriate number. Ushom alemvtov nvdikatsii indicates Ba v1ivsp1 EYG6ST77 nr to count the counter, on which there was no impulse nepeHoica, that is, right on the left of the tue of the included element | dvkadvv. In the fourth cycle, the level of subtraction and input to the first ale is set. Mevt 5: one pulse is given, after which i is recorded in the counters. . At the output of the distributor 4, the polling level of the decoders 9 is formed, and if the counters are in good condition, the & the next clock is taken, if the transfers did not pass when reversed, the polling level is formed as in the previous cases, and the counter located to the left of the switched on display element should be considered as faulty. In the Takt current, the pulses of all the counters through element 5 in parallel are given i pulses at the same time: the counters return to the idle state, and the decoders are polled from the distributor 8. If the counters are in good order, in the next clock at the output of the distributor a level is generated that includes an indication element; of general availability and turns off 1 trigger 3, if I counters are faulty, the og level of decoder 8 is fixed and the corresponding indication element is turned on, indicating a faulty counter. The invention The device for controlling counters, containing a clock oscillator, the output of which is connected to the input of the AND element, l k controlled meters, connected successively through the OR elements, which is necessary to improve the functionality of the device , a level distributor, JH +1 indication element, an OR-NOT element, a trigger, n descramblers of the initial state and maximum filling of the counters and Vi of additional OR elements are entered into it, and the device input is connected to the inputs ANOVA to the initial state of n e and controlled distribution schetchnEov T ™. P®. trigger, element, and Расп Distributor ypoBHeft lioHK} u (j4eH to the input & control of the reverse is controlled by the inputs which are connected to the inputs of the light and high-voltage moving elements of the initial state and maximum amalgamation, the outputs of which are additional | indications and through the element OR NOT, the element AND and the distribution of levels to the inputs of the elements OR, g to the control inputs of the decoders of the initial state and the maximum efull & to the input of the trigger and the input,