SU1440243A1 - Apparatus for monitoring the perfomance of technology object - Google Patents

Abstract

The invention relates to automation and can be used to control the operation of technological objects. The aim of the invention is to increase the reliability of the device and the speed of control. The device contains a programmable controller 1, block 2 input information, a key switch 3 ,. group of sensors 4 technological object objects, memory blocks 5 and fixing 6 states of technological object, multi-input element OR 12, standby multivibrator 13, decoder 14 and switch 15, as well as identical control channels, including block 8 for fixing the fault, two-way the new element OR 9, the switch 10 and the indicator 1 1, the Device provides operational control of the operability of the complex of technical objects and the state of technological processes. 1 il. with iS

Description

The invention relates to automation, ke and can be used to control the operation of technological objects such as washers.

The purpose of the invention is to increase the reliability of the device and the speed of control.

The drawing shows a block diagram of the device (for the sake of simplicity, a diagram of the device for one control unit is shown)

The drawing shows the programmable controller 1, information input unit 2, key switch 3, a group of sensors 4 state of the technological object, memory block 5.

block 6 of fixing the state of the technological object, control nodes 7, control channels, including block 8 of fault fixations, element OR 9, switch 10 and indicator 11. The device also includes a multi-input element OR 12, a waiting multivibrator 13, a decoder 14 and a switch 15 .

The device works as follows.

After processing the information received on the data bus from block 2, the order of receipt of which is determined by the sequence of polling codes from the address buses of controller 1, the miPi in accordance with a given program over the control bus generates a sequence of control codes, which are decrypted by block 5 the words of the latter are associated with the control channel, a separate node of the technological object. For the object class under consideration (dry cleaning machines, washing machines, and the like, such units can be starters, intermediate relays, electro-valves, etc.

The signal to turn on (or turn off) the node 7 simultaneously arrives at the first inputs of block 8 and the element OR 9. At the second input of block 8, a feedback signal is sent to turn on (or turn off) node 7. If If there is no set and real state of node 7, then there will be no signal on its output. A two-input element OR 9 will form a signal to the input of the switch 10. At the same time, the control code of the programmable junction: Lever 1 will go to the input of the block b. The permission to write one or another code is formed by one of the outputs of memory block 5. Due to this, it is possible to select key codes from a sequence of control codes that correspond to individual segments of the program of work of a technological object (for example, such as Washing, Spinning, Rinsing),

The decryption of the recorded code corresponding to a specific stage of the technological process is performed by the decoder 14, the output of which is connected to one of the switches of the 10 control channels. Thus, at the input of the latter there are at each moment of time two signals corresponding to the state of one node 7 and the stage of the technological process being worked out at the moment. Each of them will be output to the output of the switch 10 and the indicator 11 connected to it and depends on the position of the switch 15. In the state of the technological process, the signal from the output of the decoder 14, i.e. information on the current stage of the technological process, which is of interest to the operator.

If switch 15 is in the Control position of the technical

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means, then on the indicator 1 1 the status 10 of a certain node 7 is displayed by the switch 10. By alternately changing the position of the switch 15, it is possible to establish the correspondence between the current stage of the technological process and the state of the nodes 7 during the operation.

In the event of a failure in the operation of node 7, a discrepancy appears at the inputs of block 8 and a signal appears at the output of the latter, which, through the multi-input element OR 12, starts the waiting multivibrator 13. The latter starts to generate a sequence of pulses. A pulse arriving on the programmable controller I interrupt bus is processed on the day the object is brought to a safe state, i.e. provides off-iffle object. At the same time, the pulses arrive at the input of block 8, maintaining the latter in a state corresponding to the presence of a malfunction, thus providing at its output a signal of the g-1 flashing type. When translating switch 15 into the Hardware Inspection position, the specified signal is fed through the switch 10 to the indicator 11, thus indicating the location of the fault. Upon elimination of the malfunction by the signal Reset, the block 8 is reset to the initial state, thereby terminating the generation of pulses by the multivibrator 13 and removing the signal from the interrupt bus of the programmable controller. If a failure occurred while the unit was processing the specified program, then when the launch command is repeated, the programmable controller 1 queries the information recorded at the time of the failure by block 6 and transmitted to the input of the input unit 2.

The result of the survey is programmatically terminated, and the object can either continue operation or, if it is required, repeat some previous steps.

Claims (1)

Invention Formula A device for monitoring the operation of a technological object, comprising a programmable controller, an information input unit, a key switch, a group of state sensors of those 1440243 the object, the memory block, the fixation block of the technological object, the decoder and the group of control channels, each of which contains an indicator, the first and second groups of inputs of the information input block are connected respectively to the groups of outputs of the key switch and the group of technological state sensors object, the third group of information inputs of the information input unit and the group of inputs of the decoder are associated with the group of outputs of the block, the fixer, and in each control channel there is a block OR and the switch, the output of which is connected to the indicator input, control inputs and the first information inputs of the switches of all control channels are associated respectively with the switch and decoder outputs, the second information input of the switch of each control channel is connected to the output of the OR element, the first inputs of the OR elements and fixing blocks malfunction of all channels of contact The state of the technological object is connected to the corresponding one, the group of inputs of which and the group of inputs of the memory unit are connected to the output group of the programmable controller, the group of data inputs which are the memory unit, the second input of the fault fixation units of all control channels control node outputs connected to a group of exits of block nological objects, and the third inputs Information input, the outputs of the control unit are used to connect the control units of the technological object, the group of address outputs of the programmable controller is associated with the group of address inputs of the information input unit, which, in order to increase the reliability of the device and efficiency control, it introduced a multi-input element OR, waiting for a multivibrator and switching Rodz are connected with the corresponding the outputs of the memory block, the second inputs of the block fixation failure of all control channels are used to connect to the outputs of the control nodes of those and the interrupt input of the programmable controller is connected to the output of the standby multivibrator, the input of which is connected to the output of the multi-input the OR element, whose inputs and second inputs of the OR elements of all control channels are connected to the outputs of the failure-fixing units of the corresponding control channels, the reset inputs of which are connected to the device's reset input.