SU1300486A1 - Interface for linking computer with numeric programmed control device - Google Patents

Abstract

The invention relates to the field of computer technology and can be used to create flexible industrial equipment control systems equipped with computer numerical control devices and automation tools using a computer with a common bus interface. The purpose of the invention is to expand the class of tasks to be solved by providing additional modes device operation. The goal is achieved by the fact that the device containing the address 1 and command 6 blocks, the data register 3, the status register block 4 and the interrupt block 2, the switching unit, the output control block 8, the CNC control mode lock block 9, the command register 5 and block 10 call staff. The device is designed to control equipment with a CNC with a rigid logical structure. In such systems, the control information must be transmitted in a time division mode in parallel into several pieces of equipment with the CNC Unit with its interfaces, interpolators and perforators. In this case, the possibility of independent, independent operation of each piece of equipment included in an automated system is ensured, and thereby its flexibility is increased. 4 hp f-ly, from € (L 00 o o 4 00 05

Description

The invention relates to computing technology and can be used to create flexible production control systems for equipment equipped with numerical control devices (CNC) and automation tools for the technological process using a computer with a common bus interface.

The aim of the invention is to expand the class of tasks by providing additional modes of operation of the device,

FIG. 1 is a block diagram of the device; Figures 2-8 are functional diagrams of a state register block, command register, output control block, personnel call block, CNC control mode, switching block, interrupt block; in fig. 9 - time diagram-1a of information exchange between the computer and the CNC; in fig. 10 is an example of device connection.

The device (Fig. 1) contains an address decryption block 1, an interrupt block 2 for switching the central processor to execute the interface device service program, a data register 3 a state register block 4, a command register 5, a command decryption block 6, a switching block 7 that transfers data to the CNC Unit from a computer or from a photo-readable device (FSU) of the output control block-8, is in accordance with the procedures provided for by the computer interface and the CNC control algorithms,

9fixation of the operating mode of the CNC Unit

10 personnel calls, information buses 11 communicating with CNC, bus 12 control signals of the state of the CNC, bus 13.1 control signals from the CNC, press 13.2 setting the device operating mode, bus 14, transmitting the input and output buses 15 dp to receiving personnel acknowledgment signals

and signaling personnel calls, information buses 16 communication with the computer, bus 17 address and the synchronization input, bus 18 control of the device inputs-outputs of the device.

Block 4 of the state register (Fig. 2) consists of AND 19 group elements, first 20 and second 21 triggers, AND elements 22-27 and OR element 28, control input 29 of the mode, second

five

five

five

0

five

0

five

information input 30, command input 31 of the block, first output 32, the third information input 5 of the 33 block.

Register 5 teams (fig.Z) contains the group triggers 34 and the elements And 35 groups, the output 36 of the register.

The output control unit 8 (Fig. 4) includes a pulse shaper 37, first 38 and second 39 triggers, AND elements 40-42.

The personnel calling unit 10 (FIG. 3) consists of the flip-flops 43 and 44, the And 45, 46 elements and the delay elements 47 and 48 of the group.

Unit 9 fiksagshchi mode of operation of the CNC Unit (6) contains elements of the I-IL 49 group and group triggers 50.

Switching unit 7 (Fig.7) includes a group of elements AND-OR 51, the first information input 52 of the block.

Interrupt unit 2 (FIG. 8) contains AND 53-58, triggers 59 and 60, interrupt vector register 61, delay element 62.

FIG. 10 shows an example of connecting the device 63 to the computer 64 by means of a ping 16-18 and to the TNC 65, which includes a photo-reading device 66. The device 63 also includes an operator panel 67, consisting of a dial pad 68 and signaling devices 69 and 70. With the help of the operator’s control panel 67, the device 63 is connected with personnel serving the CNC Unit 65.

The device works as follows.

Registers 3, 5, blocks 6, 4, and 10 are accessible by a computer processor 64, which can access them in the write and read modes in accordance with the operation algorithm of the common bus interface. The following types of operations are used: Bus Capture, Program Interrupt, Word Read (Ths), Word Read with Pause (Thu), Word Write (Csp), Byte Write (Stc).

Consider the operation of the device in the mode of data transmission in the CNC control 65.

The processor sets the address of the device 63 on the shared bus to which the data block is to be transmitted, which is the part processing program gated by the CXS synchronization signal, the first data byte on the information lines and the code

ZPS operations on the lines of the AOO, U (00, 01). In block 6, in accordance with the established operation code, the signal OSS is generated, and in block 1 (if block 1 recognizes the address of data register 3), an EIT signal, determining the performance of the operation with recording information in data register 3. Next, the processor sets the address of the register 5 and the operation code CTB on the common bus, according to which in block 6 the START signal is generated. Recognizing the address of register 5 in block 1 generates a signal РКСвв that permits recording of signal START from block 6 to register 5. Then this signal is transmitted by block 9 to the CNC 65 (if the input of block 9 contains a computer enabling signal on bus 13) 2) .Under the signal START of the CNC Unit 65 is activated in accordance with its algorithm and receives the first data byte, becoming a control unit on the common bus. All subsequent bytes of the transmitted data block are accepted by the UCHPU 65 with the use of the Program Interrupt operation. The frequency of processor interruptions is determined by the operation of a particular type of CNC control 65 connected to the device 63. Thus, the processor, being a device much faster than the CNC, is released to work with other programs.

Upon receipt of the first byte from the data block, UPCO 65 starts up the block 8 with the initiating signals CYCLE,

tj, on the bus 13.1 block 8 forms

signal Request receiver (RFP) and signal Ready receiver (GP). Block 4, having received these signals, generates an interrupt signal, which, in the presence of an interrupt enable signal (TOR) defined by the processor by installing trigger 21 (FIG. 2) on bus 16, turns on interrupt unit 2. Block 2 performs Bus Capture and Program Interrupt operations, after which the processor switches to running the device maintenance program, writing the next data byte to register 3. The described procedure continues until the last byte of the data block, which is the code of the character perceived, is transmitted.

j O 5 0 5 5

0

0

five

five

device 65 as the end of the part program.

After that, the UChPU 65 removes the initiating signals from the bus 13.1, freeing the device 63 to operate in other modes.

In the state control mode of the TNC 65, the device 63 operates as follows.

The processor, which operates on a common bus, sets on bus 17 the address of device 63 and the control operation code on the AO lines, U (00.01), on one of the data lines of the bus 16 - bit in the corresponding bit control operation. Block 1, recognizing the address, generates a signal РКСвьш, according to which, in the data of the control operation, the bit of register 5 occurs at input 31 (Fig. 3) of the command decoded in block 6. From register 5, the signal enters the input of block 9, which generates the control signal the state of the CNC Unit 65 and transmitting it via bus 14 to the CNC Unit.

To start block 10, the processor exposes an address code on the address lines of buses 17, and on lines A (01, 02) the code corresponding to the selection of one of the connected signaling devices 69 and 70 is shown (Fig. 1). Signaling devices 69 and 70 serve to provide intermittent sound and light signals in cases where the intervention of service personnel is required in the operation of the process equipment. Block 1, recognizing the set address, decodes the combination on lines A (01, 02), generates a signal at input 29 ((Jair.6) including block 10. Last, via output bus 15, turns on the corresponding signaling device 69 (70) (FIG. 1) Information about the arrival of the service personnel is entered into block 10 by input terminal 15. Block 10 generates a signal that the Personnel arrived (PP) and transmits it to block 4. The processor, in the program state polling mode, receives this information.

In the state analysis mode of the CNC controller 65, the master-setting processor transmits the address of the device 63 and the operation code of the lines A 00, U (00, 01) using the A lines (01-17), and strobe with the CX3 signal. In block 6, a signal is generated. When the address is decoded in block 1, a RCSV signal is generated. The signals Cht and RKSbw arriving at input 29 of block 4 call block 4 to transfer information about the state of the CNC control 65 from block 4 on line D (06-15) via bus 16.

Unit 4 of the status register (FIG. 2) is accessible to the processor, CNC control 65, signaling devices 69 and 70 (through block 10) and operates as follows.

In the initial state, the trigger 20 is set, and the trigger 21 is reset by the PRE signal by the exposed process.

The signal from the command decryption block 6 is set at input 31. At the same time, a signal arriving at the third input of the corresponding element AND 35 is set up on the line of the given team of data given in this command. In the presence of the enable signal РКСвп the signal of the setting of the signal corresponding to this command is generated by the trigger 34, the signal from the output of which comes in block 9.

The output control unit 8 operates as follows (FIGS. 4 and 9).

In the initial state, the trigger 38

Soil on the common bus and arriving at 5 is set, trigger 39 is reset to the signal input 29 from block 1. When entering with STOP FSU cash, coming through the bus on input 30 through the OR element 28 13.1 from the CNC control 65,

coming through the CNC 65 bus 14, CNC Control 65 (in accordance with its 20

signal GP or ZPP from block 8 flip-flop 20 is reset and through element And 26 (if there is a signal at its input GP) generates a signal PURRIV transmitted to output 32, In addition, the signal from the inverse output of trigger 20 through element And 19.9 (if present The last permitting signal generated by the element 22) is fed to the bus 16 and is perceived by the processor as a ready signal of the CNC 65.

The trigger 21 is set by the processor in the case when it is necessary to set the operation mode of the device 63 by interrupts. At the same time, the signals РКСвв, ЗПС and -Dob are set to the inputs 29, 31 and bus 16. When they coincide, element 24 sets a trigger 21, the output signal of which is fed to output 32 and through element 27 (in the presence of an enable signal generated by element 25 by signals РКСвв and Чт) to bus 16.

In the presence of an enable signal generated by AND 22 (with the aid of signals РКСвв and Чт), the output signals of elements И 19.1-19.8, repeating the state of bus lines 12 and input 33, are transmitted on output 16 to the data line. At the same time, the processor perceives signals of the state of the CNC Unit 65 and the signaling devices 69 and 70. Register 5 teams works as follows (fig.Z).

In the initial state, the triggers 34 are reset by the signal POGG at input 29. If it is necessary to record a command in register 5, on the first input of the corresponding element And 35

operation algorithm) removes the STOP FSU signal and sets the START FSU signal to the input B of the driver 37. Then, after 500, not the input A of the driver 37 is fed

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 the CYCLE signal and receiving the first data byte. At the same time, the TNC 65 generates a signal tg, which arrives at the reset input of the trigger 38. The trigger 38 is reset, and at the output 30,

0, the ZP signal is removed. Upon completion of the operations associated with the reception and processing of the data byte, the TNC 65 removes the CYCLE signal, on the falling edge of which a short pulse is generated by the shaper 37, which sets the trigger 38. The signal from the output of the trigger 38 through the And 41 element in the presence of an enable signal The computer at input 13.2 arrives at output 3

40 and means the request of the CNC control 65 to receive the next data byte. In the absence of failures of the CNC Unit 65 element I 40 sets the trigger 39, the signal from the output of which through the element I 42

45 (if there is a computer permitting signal on the last one) arrives at output 30 and means that the CNC unit 65 is in the ready state. Trigger 39 reset is performed by STOP FSU signal

50 after receiving the last byte from the transmitted data block.

The personnel call block 10 (FIG. 5) is accessible to the processor and the service personnel and operates as follows 3 3 ohms.

In the Initial state, the triggers 43 and 44 were reset by signals on the bus 15. The personnel arrived (Ш1). Signal call

The signal from the command decryption block 6 is set at input 31. Simultaneously on the corresponding given ko. The line 16 of the bus bar 16 exposes a signal arriving at the third input of the corresponding element 35. If there is an enable signal РКСвв, the installation signal of the trigger 34 corresponding to this command is generated, the signal from the output of which enters block 9.

The output control unit 8 operates as follows (Figures 4 and 9).

In the initial state, the trigger 38

supplied by the CNC 65 via bus 14, the CNC Control 65 (in accordance with its

operation algorithm) removes the STOP FSU signal and sets the START FSU signal to the input B of the driver 37. Then, after 500, not the input A of the driver 37 is fed

the CYCLE signal and receiving the first data byte. At the same time, the TNC 65 generates a signal tg, which arrives at the reset input of the trigger 38. The trigger 38 is reset, and at the output 30,

ZP signal is removed. Upon completion of the operations associated with the reception and processing of data bytes, the TNC 65 removes the CYCLE signal, on the falling front of which the shaper 37 forms a short pulse that sets the trigger 38. The signal from the output of the trigger 38 through the AND 41 element in the presence of a computer enable signal on the input 13.2 arrives at exit 30

and means the request of the CNC 65 to receive the next data byte. In the absence of failures of the CNC Unit 65 element I 40 sets the trigger 39, the signal from the output of which through the element I 42

(if there is a computer permitting signal on the last one) goes to output 30 and means that the CNC unit 65 is in the ready state. The flip-flop 39 is reset by the STOP FSU signal.

after receiving the last byte from the transmitted data block.

The personnel call block 10 (FIG. 5) is accessible to the processor and the service personnel and operates as follows.

In the Initial state, the triggers 43 and 44 were reset by signals on the bus 15. The personnel arrived (Ш1). The personnel call signal (CW) from block 1 at input 29 sets the corresponding trigger 43 (44), the signal from the direct output of which includes a sound and light alarm device 69 via bus 15. Upon arrival of the personnel at the facility, in block 10, as soon as the control unit 15 is injected, the control signal is reset, which resets the corresponding trigger 43 (44), from the inverse output of which forms the control signal on output 33, transmitted through block 4 to the processor.

Unit 9 of the operating mode of the CNC Unit operates as follows (FIG. 6).

Initially, the triggers 50.1-50.6 are reset by the RESET MODE signal on input 36. To set the operating mode of the CNC controller 65, the input signal of the computer is set at input 13 by the processor at the inputs of the AND-OR 49.1-49.6 elements, and the setting signal is applied to the trigger 50 at the input 13 by log in

Signals TORP and TURN, arriving in block 2 at input 32 of unit 4, form a decisive signal through element 53 and prepare signal 5 for element 54 and fed to elements 56 and 58. In the initial state, the inverse output of eigger 60 Signal resolving signal. When the enable signal arrives at the input of element And 58, the last one sends a transmission aux signal (RR) to the common bus if there is no signal on the last one, Sample Confirmation (PVB). In the case of the presence of this signal, element 5 expects it to be removed. In response to the SNP from the processor, bus 18 sends a signal to enable transmission (RP), which overturns trigger 59, and at its output appears the decision signal, through which element 56 is transmitting a PVB signal. The signal PVB processor removes the signal RP, and the element And 58 - signal RFP.

Element And 55 analyzes the

J5

20

Du 36 from register 5 teams. The output line of Zanto (ZAN) on the common

the trigger signal 50 through the corresponding element AND-OR 49 via the bus 14 is transmitted to the control unit 65.

To set the mode of operation from the operator panel 67 to the corresponding AND-OR 49 element corresponding to the selected mode of operation, the bus 14 provides a signal from the panel 67 of the operator. If the inputs of the AND-OR 49.1-49.6 elements have an AVT enable signal, the corresponding element AND-OR 49 forms the signal transmitted via the bus 14 in the CNC unit 65.

The switching unit 7 (FIG. 7) is intended for the transmission of information and synchronization signals to the TNC 65 either from the data register 3 or from the photo reader 66 and operates as follows.

In the mode of data transmission from the processor, the input 52 sends the information signals and the CTP synchronization signal to the inputs of the AND-51 elements, which, when enabled by the computer on the bus 13.2, are transmitted via bus 11 to the CNC control 65.

In the data transfer mode from the photo-reading device 66, data is fed to the inputs of the AND-OR elements 51 and, with the enable signal, the AVT is transmitted via bus 11 to the CNC 65.

Block 2 interrupt works as follows (Fig.8).

tire. If the ZAN command line is already installed on the OSH, then the AND55 element waits for it to end; if the signal ZAN is absent, the element And 55 overturns

 the trigger 60, from the output of which the signal ZAN is output to the common bus, is prevented from passing the interrupted vector from either register 61 to the data line D (02-07) and through the delay element

35 62 the signal is terminated.

(PREP) in the general tire. The signal PR computer 64 perceives the vector of the interruption and does not send to bus 17 a signal C of the synchronization of the performer (SHI), the cat

Claims (5)

1. A device for interfacing a computer with a numerical control device comprising a data register, a state register block, a command decryption unit, an interrupt block and an address decryption unit whose information input is an input of the device for connecting the address output of the computer bus, and the group of outputs is connected to the synchronizing input of the data register, the command decryption unit and the control input of the mode of the pe9 the state history, the first information input of which is an input of the device for connecting the output of the state control signal of the software numerical control device, and the first output is connected to the interrupt request input of the interrupt unit, the output of the tracking vector signal of the interrupt vector and the output of the interrupt vector vector code are corresponding outputs of the device for connecting the interrupt request input and the information input of the computer, the interrupt enable input and the control input I / O Interrupt Lines are the input and output device of the device for connecting the output of the interrupt enablement and the I / O control output of the computer to the computer, the clock inputs of the interrupt unit and the address decryption unit are the device input for connecting the clock output of the computing machine, the second output the state register block and the first information input of the data register are respectively the output and input of the device for connecting the information input and output of the calculator In order to expand the class of tasks by providing additional modes of operation of the device, a switching unit, a command output control unit, a command register, a unit for fixing the operation mode of the numerical control device, and the output of the data register is connected to the first information input of the switching unit, the second information input and the output of which are respectively the input and output of the device for connecting the information output the input and input of the numerical control device, and the control input is the input of the operation mode setting of the device for connecting to the output terminal of the computer operator’s console mode and connected to the input inputs of the output control unit mode and the latching mode operation mode of the numerical control device which entrance is connected 86 ten with the output of the command register, and the second information input and output are respectively the input and output of the device for connecting the command output of the operator console and the command input of the numerical control device, the output of the output control block is connected to the second information input of the state register, and the input of the device for connecting the output of the control signals of the numerical control device, the output of the command decryption unit is connected to the first information input the house of the command register, the second information input of the data register and the command input of the state register block, the third information input of which is connected to the first output of the personnel call block, the first information input of which is connected to the output group of the decryption module 1TS1I addresses, and the second information input and the second output are, respectively, the input and output of the device for connecting the output of the acknowledgment signals and the information input of the operator's console, the control input of the command register is connected to the output group of the block address decryption, and the second information input is connected to the input of the device for connecting the information output of the computer to the fourth information input of the state register block, 2. The device according to claim 1, characterized in that the state register block contains a group of AND elements, two triggers, an OR element and six AND elements, the output of the first AND element is connected to the first inputs of the AND elements, the second inputs of which, except the last, form the first and third information inputs of the block, the second input of the last element of the AND group is connected to the inverse output of the first trigger, the installation inputs of the first and second triggers are connected respectively to the outputs of the second and third elements And, the first input of the first element And, Connected to the first inputs of the third and fourth elements, And, the first input of the second element, And the synchronous input of the first trigger, connected to the reset input of the second trigger, form the control input of the block mode, the first parameters of the fifth and sixth elements And are connected respectively to the inverse output of the first triggers and the second output of the fourth trigger and the reset input of the first trigger, the outputs of the AND group and the sixth And output form the second output one block, the direct output of the second trigger and the output of the fifth element AND form the first output of the block, the third input of the fifth element AND connected to the first input of the element OR, and the second input of the element OR form the second information input of the block, the second input of the third element AND The fourth information input of the block, the second input of the first element And connected to the second input of the fourth element And, and the second input of the second element And connected to the third input of the third element And form the command input of the block. 3. Device POP.1, characterized in that the output control unit contains two flip-flops, three AND elements and a pulse shaper, wherein the installation inputs of the first and second triggers are connected respectively to the outputs of the pulse shaper and the first element And, and the outputs, respectively, with the first inputs the second and third elements And, the outputs of which form the output of the block, and the second inputs are connected to the input of the block mode setting, enabling and triggering the pulse shaper inputs, the reset inputs the first and second triggers, the first and second inputs of the first element And form the information input of the block. 4. The POP device 1, characterized in that the personnel call block contains a group of triggers, a group of elements AND and a group of delay elements, and the inputs of the installation of trigger groups form the first information input of the block, and the forward and inverse outputs form the second and first outputs respectively, the reset inputs of the group triggers are connected to the outputs of the corresponding elements AND groups are connected by the first inputs to the outputs of the corresponding elements of the delay group, the second inputs of the elements AND groups connected to the inputs of the corresponding group delay elements form the second information input of the block. 5. The device according to claim 1, about tl and - the fact that the block fixing mode devices numeric program control contains a group of triggers and a group of elements AND-OR, the outputs of which form the output of the block, and the installation inputs of the trigger group and connected between the reset inputs of the group triggers form the first information input of the block, the first information inputs of the I-SHIII group elements are connected to the outputs of the corresponding triggers the groups, the second information inputs form the second information input, the first and second control inputs of the AND-OR group elements form the input setting the operation mode of the device. 29 PKCtbiS I w.f vmp nor at 12 S3 prep gp Zpp thirty РД9ы9 evil 23 one L 24 sixteen Th ha " 42 19.b D07 g 13.9 D06  No 1 28 26 . 32 $ 21 Pneutl L 27 m Z9 VP1 33 LP1 VP2 PP2 PL1 & 45 43 Sign. f Sign. 2 eight & 6 H FIG 5 "Y. 6 52 RPbib PRRVvyb & 53 3Z  If R & 57 & 67 L (02-07) 59 8G 55 L 58 ZP ZLN 1c PRER & 56 PVV Fi..8 set neither ZSHKC 9i "with ZIL D (40-117} Compiled by V. Vertlib Editor I.Rybchenko Tehred A. Kravchuk Order 1150/48 Circulation 673 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 g G I L Proofreader I. Muska