JPS60150102A - Controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] [The present invention relates to a controller, and is particularly suitable for process control in which a time controller program can be executed and the program program can be changed while the program is being executed. □Related to controllers - [Inventive scene]' Built-in microcomputer - A cylinder needle is used to perform a low-process system.
Each bridge calculation element stored in the barrel needle is combined and executed by specifying it in a program.

There are two conventional programming methods: one is to create a program by specifying various operation elements with the #synonym i, and the other is to group the operation elements as a block and connect the operation blocks with each other. Both of them have the disadvantage that they cannot be written directly as a program, and the variables in the calculation expressions are restricted. However, if the input/output processing from the boot processor is interrupted and the control calculations are further executed, the problem arises that it takes too much time.

[Purpose of the Invention] ” ” The present invention was developed in view of the above, and its main purpose is that high-speed processing is possible even when using BASICM language, and programs can be executed in chestnut time. The object of the present invention is to provide a controller that can change the program while executing a gummy gram, and can easily execute complicated arithmetic processing.

[Overview of the invention]

The present invention is characterized by a means for inputting a program for performing a desired control operation in the form of an arithmetic expression using the RASIC language, a table storing execution addresses of calculation elements stored in advance, and a table for storing execution addresses of calculation elements stored in advance. A code converting means that sequentially divides and converts the BASICN word into a code corresponding to the above-mentioned chirp address for each execution cycle of the controller; The present invention is characterized in that it is configured to include means for executing.

[Embodiments of the invention]

The present invention will be explained in detail below using the embodiments shown in FIGS. 1 to 8.

FIG. 1 is an external view showing an embodiment of the controller of the present invention. In FIG. 1, reference numeral 1 denotes a controller body with a built-in microcomputer, and has a parameter setting section 3 and a front panel 4 for setting parameters necessary for controlling a process.

The parameter setting section 3 includes a display section 31 for displaying parameters, a key switch 32 for setting parameter values,
There is a selection switch 33 for selecting whether a program can be stored in the adjustment needle or whether a stored program can be executed. The front panel 4 includes a pointer 41 for instructing the control amount signal, set value signal, and operation amount signal, a dial switch 42 for switching the operation amount signal between automatic and manual, a dial 43 for increasing and decreasing the operation amount in manual mode, and a set value. A dial 44 is provided for manual settings.

Reference numeral 5 denotes a program creator for creating a program for the controller, and a display section 51 for displaying the program and a key switch 52 for setting the program are provided externally, and the connector is connected to the controller body 1 via a cable 6. It is joined by 7. The program is executed by the key switch 5 of the program creator 5.
2 and confirm on the display 51. The created program is stored in the AM in the adjustment needle main body l via the cable 6. The controller main body 1 reads a program several steps at a time in each calculation cycle from the RAM and converts it into a code. The converted code is stored in the RAM again, and read out and processed when performing arithmetic processing.

FIG. 2 is a block diagram showing an example of the internal configuration of the controller body l shown in FIG. 1. In FIG. 2, an analog signal such as a measured value from a process is converted from an analog signal to a digital signal by an input processing section 10, and is stored in an input signal register 12 of the AMII. Parameter setting section 3
The operation outputs of the key switch 32, the dial switch 42 of the front panel 4, and the dials 43, 44 are stored in the parameter register 4 via the operation input processing section 13. The parameters are displayed by the arithmetic processing section 15 calling up the numerical value of the parameter number specified by the data from the key switch 32 stored in the parameter register 14 and storing it in the display register 16. Display processing section 1
7 inputs the contents of the display register 7 register 16 to the parameter setting section 3.
output to the display section 31. The program input processing unit 18 receives the program sent from the program creator 5 via the connector 7 and stores it in the program register 19. The arithmetic processing unit 15 changes the contents of the program register 19 into a code for several steps in each calculation cycle, and stores the code in the code register 2o.

The calculation is executed according to the contents of the code register 20 using the data stored in the input signal register 12JC. The result is then stored in the output register 21. The output processing unit 22 reads the contents of the output register 21, performs D-A conversion, and outputs the converted signal as an analog signal. Input processing section 10, operation input processing section 13, display processing section 17, program input processing section 18, and output processing section 22
By coupling the program and the arithmetic processing unit 15 through each register in the RAM II, program execution and input/output processing can be separated, and the program execution time can be shortened.

FIG. 3 is an internal configuration diagram showing an embodiment of the program creator 5 shown in FIG. A key switch 52 consisting of alphanumeric characters for keying in a program, an input conversion section 53 for converting the contact signal from the key switch 52 into JIS code, and data from the input conversion section 53 being displayed on the display section 51 and sent to the communication processing section 54. It is composed of an arithmetic processing section 50 for sending data, a display section 51, and a communication processing section 54 for sending sent data to the controller main body l via a cable 6.

FIG. 4 is an operation flowchart of the controller of the present invention.

First, in step 71, an analog input signal is input, and the input processing section 10 converts it into a digital signal, and in step 72, the signal is stored in the input signal register 12. Step 7
3, it is determined whether the program is stored in the code register 20, and if it is stored, step 74
Execute. In step 74, arithmetic processing is executed according to the contents of the code register 20, and in step 75, the result is stored in the output register 21. In step 76, the contents of the output register 21 are read out, subjected to D/A conversion, and output as an analog signal. In step 77, it is determined whether the key switch 32 has been pressed, and if it has been pressed, the process of step 78 is executed. In step 78, parameters are created according to the operation contents of the key switch 32. Parameters are created by program-code conversion processing. That is, it is converted into a code using a parameter table indicating the address stored in the AMII. Then, by using the parameter number change key in the parameter setting section 3, the number '' of the parameter table currently stored in the display register 16 is incremented or decremented, and the result is stored in the parameter register 14. The parameter data change key takes out a parameter storage address from the parameter table with the parameter number indicated in the current display register 16, and increases or decreases the data specified by this address. In step 79, the parameter table number specified in the parameter register 14 and the data at the parameter storage address indicated by the table number are extracted and displayed in the display register 16.
and displayed on the display section 31. In step 8o, a determination is made as to whether there is a program input, and if there is a program input, step 81 is executed. Step 8
1, the program input from the program creator 5 via the cable 6 is stored in the program register 19 through processing in the program input processing section 18. In step 82, it is determined whether the program has been stored in the program register 19, and if it has been stored, step 8
Execute 3. In step 83, program register 1
9 data is converted into code. In step 84, the converted code is stored in the code register 2o.

The processing in steps 83 and 84 executes the conversion for only one step stored in the program register 19 in l calculation cycles, and suppresses the time required for conversion to the minimum within the calculation cycle.

In step 85, the calculation cycle is monitored, and when the calculation cycle is reached, the process moves to step 71.

FIG. 5 is a flowchart of the program-code conversion process at step 83 in FIG. This program is
Each character is stored in the program register 19. In step 86, one character is read from the program register 19.

Then, in step 87, processing for one sector from alphanumeric characters to symbols, blanks, or CR (return line feed) delimiters is performed. Step 88 determines whether the data for one sector is for calculation processing, step 89 determines whether it is a parameter, step 9o determines whether it is input/output, and step 9
1, it is determined whether it is a conditional branch or not, and the corresponding operation-code conversion step 92, parameter code conversion step 93, turnout car food conversion step 94, and condition-code conversion step 95 are executed. The results of the processing in steps 92 and 93 are stored in the code register 2o in step 96. In step 97, it is determined whether the code delimiting one sector is cR, and CB
Then move on to step 100! If it is not D or CB, the process moves to step 98. In step 98, the delimiter code is 6.
If it is determined whether line -11="2", the process moves to step 99. In step 99, the code of 1=“@S'
The code of "l'ORE" and the code of the previous parameter are temporarily saved in memory. In step 100, the code saved in step 99 is read and stored in the code register 20.

FIG. 6 is an explanatory diagram showing an example of glogram-code conversion. In the processing of steps 86 and 87, @Y# is read by one sector, and @Y# passes through step 89 and then steps 93.
Parameter code conversion is performed. In addition, RAM
II) Secure the area for the parameter, store the address a in A1 of the parameter table 23, and the result is 'Y'.
Assume that the code is 61". In the process of step 96, 'IN' is stored in the code register 20, but at the branching in step 98, the process moves to step 99, and "'STO 几E
Temporarily save the code along with “.

Next, in steps 86 and 87, 'A#' is read, and in the process of step 93, a+1 is added to &2 in the parameter table 23.
is stored, the code is closed @2#, and stored in the code register 20 together with the code 'LOAD' in step 96. Next, '1 B'' is read out. In the process of step 92, the number 82 of the calculation element table 24 for 1C becomes a code, and is stored in the code register 20 in step 96 along with the parameter code "'3".Next, "1C"
is read out, and in the process of step 92, the code of “10” is read out.
Step 9 with '80' and 'C' code ''4#
6, the code is stored in the code register 20. This delimiter code is 'OR', stores '8TORE1' which was saved earlier in the process of step 100, and ends with the code 'CB'.In this way, the code of the calculation element and parameter is By associating the code number with the table number, the arithmetic processing unit 15 can perform an arithmetic operation or retrieve the contents of RAMII at the address specified by the code number.

In the turnout car code conversion in step 94, the data of one sector is the data specified by "INPUT", "0UTPUT", the code is converted to "@FO', @Fl", and then the program register 19 is converted. The parameters are taken out and stored in the code register 20. The processing at step 95 is conditional branching, shampoo code conversion, and 1
The sector is indicated by “IF” or @(IOTO’) and -
(If it is "IOTO", after converting the code "'GT", 'GO
The current program number is subtracted by the n parameters specified by "TOn" and the result is stored. After converting the code "C1", the conditional statement is converted to the code @80,02 of the conditional expression "<, >, =". , 01'' is added and stored together with the parameter code, and then 'GO1'On'' which comes after 'THEN' is coded in the same way as a jump.

FIG. 7 shows the commands used in the program.

FIG. 8 shows an example program. The program in Figure 8 is
First, the analog input is read from I61 in the input signal register 12 and stored in the register AIL in the parameter register 14. Next, the analog input is read from I61 in the input signal register 12 and stored in the register AIL in the parameter register 14. The data is stored in register AI2 inside. Next, KIXA
Arithmetic 2 is performed on Il+, stored in register PV in display register 16, and used as a measured value. Next, register A
, I2 are stored in the register Sv in the display register 16 and set as a set value. Next, the control operation is the arithmetic element CT
When RL is specified, the subscript and two variables pv and sv are used to perform processing. The result is stored in register MV in output register 21.

Register MY performs output processing, outputs an analog output, and finally ends with END.

〔Effect of the invention〕

As described above, according to the present invention, a program can be executed in real time, and the program can be changed while the program is being executed.

[Brief explanation of the drawing]

FIG. 1 is an external view showing one embodiment of the controller of the present invention, and FIG.
The figure is a block diagram showing an example of the internal configuration of the controller body shown in Figure 1, Figure 3 is an internal configuration diagram showing an example of the program creator shown in Figure 1, and Figure 4 is a block diagram showing an example of the internal configuration of the controller body shown in Figure 1. FIG. 5 is a flowchart showing an example of the program-code conversion processing steps in FIG. 4;
The figure is an explanatory diagram showing an example of program-code conversion.
The figure shows commands used in the program, and FIG. 8 shows an example of the program. 1... Controller body, 3... Parameter setting section, 4.
...Front panel, 5...Program creator, 10...
- Input processing unit, 11... PAM, 12... Input signal register, 13... Operation input processing unit, 14... Parameter register, 15... Arithmetic processing unit, 16... Display register, 17... Display processing section, 18... Program input processing section, 19... Program register, 20
...Code register, 21...Output register, 22
...Output processing unit, 23...Parameter table, 2
4... Calculation element table. Agent Patent attorney Hiroto Nagasaki (and 1 other person) No. 1, No. 3, No. 4, No. 7 (&) No. S, No. 10 INPUTI, Al1 2θ INPUT2. M2 30 PV = KIXAI7 2 4θ 5Y = AI2 SO/'IV = C-rRL (PV, Sγ) 60 0tj
TPUT1, /'711'7θ END

Claims (1)

[Claims] 1. In the adjustment needle with a built-in microcomputer □ used for process i control, means for inputting a program for performing desired control calculations in the form of arithmetic expressions using BASICi words, and a pre-memorized calculation unit. A table that stores the original address and BA8I of the above program.
code converting means for converting the C language into code corresponding to the tailer side control by sequentially dividing it into codes for each execution cycle of the controller; and means for executing a program, and the process input/output processing can be executed separately from the input/output instructions of the program.゛