SU596914A2 - Electronic programming device - Google Patents

Description

(54)

ELECTRONIC PROGRAMMER

I

The invention relates to the field of automation and is intended for use in software control systems of various technological processes.

According to the main auth. 411435 known electronic programmer.

However, such a programmer is not reliable enough.

The aim of the invention is to increase the reliability of the programmer.

This goal is achieved by the fact that the proposed electronic programmer contains a switch, a mode switching unit and elements, the first inputs of which are connected to output command blocks, and the second inputs and outputs are controllable units connected to the inputs of the mode switching unit whose output is connected to the setter the duration of the cycles, and the inputs to the frequency dividing unit and through the switch It to the power supply.

The drawing is a block diagram of an electronic programmer.

The programmer contains a power source 1, a node 2 of the automatic installation of the initial state, a generator of 3 sinusoidal oscillations, a frequency dividing unit 4, a switching unit 5

modes, master b cycle time, switch 7 base time interval, node 8 automatic reset master cycle time, pulse distributor 9, node 10 automatic reset of the programmer, node 11 counting duty cycles, switch 12 the number of cycles, node 13 automatic stop of the programmer,

switching field 14, blocks of 15 output commands, switch 16, controllable units 17, initial setting bus 18, programmer reset bus 19 and AND elements 20.

The programmer works as follows.

When power supply 1 is turned on, node 2 automatically sets the programmer to the initial

condition. At the same time, the generator 3 begins to work, the decoded signal of which enters the frequency division unit 4, since its input is locked. In the switching field 14, a reference program is dialed, for which, jacks (not shown) connect the sockets, one of which is connected to the outputs of the pulse distributor 9, and others to the inputs of the output

command The switch 7 sets the iOT of the duration of the working cycle, and the node of the account of the working cycles 11 sets the number of working cycles. When; (the button of the Start button opens the input of the frequency division block 4 and the generator 3, which is negatively tangible, converts the pulses, the follow-up period of which is determined by the divider division factor. These pulses go to the mode switching block 5. i.e., all units operate normally, then pulses from the output of the mode switching unit are passed to the input of the setter 6 for the duration of the cycles. At the same time, pulses are removed from its output with the following period determined by by switching the switch 7. These pulses are located on the node 8 automatic reset, the cycle duration setter and the distributor 9 pulses, from which are sequentially distributed over the socket of the switching section 14. The last pulse of the specified cycle from the output of the output switch input .. node 10 automatic reset programmer, which installs. blocks 4; 6, 9 and 15 in the initial state, preparing the programmer for a new work cycle. This same “pulse” is fed to the counter of the node 11 93et duty cycles. As soon as the symmator has completed the specified number of 1 pc, the output of the node 11 through the switch 12 of the number of cycles to the node 13 receives a pulse that converts into a potential, which, acting on the generator 3, stops the program mater. In case of abnormal operation of any of the units 17c of the output of the corresponding sensor of normal operation, zero is output, which leads to the prohibition of the passage of the signal from the frequency dividing unit 4 to the setpoint generator 6 of the cyclic duration c. When the process line aggregates stop working. In addition, a zero from the sensor of the normal operation of a faulty unit, entering the inputs of the corresponding to this unit elements I 20, prohibits the passage of commands to the faulty unit: from the block {output commands. To restart the units for work on the nporpaf s4e, the switch 16 is triggered, the unit has one unit to the input of the mode switching unit 5, and, therefore, cst№M allows the control signals to pass through the setpoint 6 cycle duration. The invention makes it possible to eliminate defects in a number of productions due to the possibility of shutting down the process line and blocking the work of faulty units, as well as reducing simple LIsHI’s due to the possibility of a new start-up of serviceable units under the program. The formula is an electronic programmer auth. 1 1411435, characterized in that, in order to increase the reliability of the grammar, the pH contains a switch, a mode switching unit and elements And, the first inputs of which are connected to the output command blocks, and the second inputs and outputs to the control unit for the units connected to the inputs of the mode switching unit, the output of which is connected to the unit for the duration of cycles, and the inputs to the frequency division unit and through the switch to the power source.

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