SU593216A1 - Device for setting object operation time cycles - Google Patents

Description

one

The invention relates to automation and instrumentation technology and can be used in the construction of automatic control and monitoring systems.

A device 1 is known that contains memory devices operating in read mode and controlling electronic subsystems, and the required program is specified by a code card. The data read from this card, together with the data stored in the memory device, is used to control the two-way pipeline.

The disadvantage of such a device is the limited range of use, due to the need to restructure the program (card change) when switching to the manufacture of another product.

The closest in technical essence and effect achieved to this invention is a device 2 containing a rasprelt, a polling agent, a first pulse generator connected by its control input with an output of the first element I, the first input of which is connected to the device’s start bus, the output of the first generator is connected with the first input of the command condition generation unit, connected by the second input with the output of the condition setting unit, whose input is the change of the command condition change, controlling the output of the generation unit

command conditions are connected to the second input of the first element AND, the information outputs of the same block are connected to the corresponding inputs of a group of time interval blocks whose outputs are connected to the first inputs of the corresponding control blocks, the second inputs of the last are resolution, the first outputs are the entire device .

Such a device implements temporary programming and, if necessary, performs a prozek of a part of cycles or a repetition of a part of a program. However, it does not generate subsequent commands, if not

The time for executing the commands of the previous object operation cycle has expired, which limits its use.

The purpose of the invention is to expand the functionality of the task device.

time cycles of objects.

To achieve this goal, a second pulse generator, an inverter, second and third elements AND, the inputs of the last are connected to the second outputs of the blocks} Etching, the output is connected to the third input of the first element And and the input of the inverter, the output of which is connected. with the first input of the second element And connected

the second input with the device nuska bus, and

the output is connected to the input of the second pulse generator, while the output of the second pulse generator is connected to the input of the interrogator, the outputs of which are connected to the third inputs of the respective control units.

The drawing shows the device setting the time cycles of the objects.

The device contains an inverter 1, elements AND 2-4, the first 5 and second 6 pulse generators, a block for setting conditions (command generation) 7, a block for generating command conditions 8, a polling distributor 9, blocks for setting time intervals 10-12, control blocks 13 -15.

The device works as follows.

In the initial state at the inputs of the AND 2-4 elements, there are no coincidences of the signals, and from the outputs of the AND 2 and 3 elements bullet signals arrive at the pulse generators 5 and 6, blocking them.

The command condition generation unit 8 and the polling distributor 9 are in the initial state. With the help of setting the conditions (command generation) 7 and setting the time intervals 10-12, the conditions for generating control commands and time intervals for each object are entered.

When posting on the input of an AND 2 command, the Start occurs at its inputs, the signals coincide and it blocks from the first pulse generator 5. The clock pulses from the generator 5 arrive at the input of the command-condition generation unit 8, which, according to the input from block 7, the second input condition, produces a command-condition. Day condition command through blocks 10-12, depending on the time intervals set by these blocks, goes to the corresponding inputs of control blocks 13-15. In one of the control units, and the input of which contains a permission signal, the example of block 13, is activated by a time relay corresponding to the time interval set for the given object by} block 10. From the first output of the control unit 13, a signal is set to turn on the object, and from the second, a coincidence signal to the input of the AND 4 element.

Analogy includes the inclusion of blocks 14 and 15.

With all the included blocks 13-15 at the inputs of the element 4, the signals coincide, the output of which prohibits the input of the element 2, and through the inverter 1 the resolution at the input of the element 3 3.

If the condition of the object has changed before the specified time has elapsed and when the Start command is entered, the signals are combined at the input of the element 3, resulting in blocking from the emulsion generator 6. Pulse generator 6 starts the distributor 9, which is looking for a block according to the changing condition control of the real object and cocks the relay for a period corresponding to the new condition.

The introduction of a second pulse generator, an inverter and two elements into the device distinguishes it from the known device by allowing, in the case of the changing conditions of an object, to interrupt its cycle time and introduce new control actions corresponding to the new operating condition, such as

extends its functionality, and hence its use.

Claims (2)

1. US Patent No. 3868648, cl. 340-172, 1975. 2. USSR author's certificate No. 394787, cl. G 06F 15/46, 1971. Output 1 output 2 Exit 3