JP2000214913A - Distributed production facilities control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize thorough lining-saving for a host controller and plural kinds of function modules with a relatively simple mechanism. SOLUTION: A host controller 1 taking charge of the control of the entire system of production equipment and plural function modules 2 to 4 performing prescribed operations on the basis of a command from the controller 1 are connected directly or indirectly by serial communication. The 1st function module 2 is connected directly to the controller 1 and communication is performed in a 1st communication form A. The 2nd function module 3 is connected indirectly to the controller 1 through a function module 4 included in the 1st function module and communicates with the module 4 in a 2nd communication form B being different from the form A. The module 4 has the function of a communication form converting device that performs conversion between the forms A and B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a transfer machine, an assembly machine,
The present invention relates to a production equipment control system that controls production equipment such as an inspection machine, a measuring machine, and a processing machine. More specifically, the present invention relates to a host control device for controlling the entire system, and a distributed production equipment control system in which a plurality of types of functional modules provided in each section of the system are connected by serial communication.

[0002]

2. Description of the Related Art FIG. 10 shows a conventional distributed production equipment control system described in JP-A-63-68905. According to this, a programmable controller (hereinafter, referred to as a PC) corresponding to a host control device,
A plurality of positioning control devices (PM1, PM2,..., PMn) 100 for controlling a control target such as a motor are connected via a serial communication bus (hereinafter, referred to as SCB).

The PC converts the data from the arithmetic control unit 101 into serial data and transmits the serial data to the SCB, and also reproduces the data received from the SCB and transmits the data to the arithmetic control unit 101. The system includes a communication controller 102, a plurality of I / O modules 104 for controlling I / O devices 103 such as switches, lamps, relays, and solenoid valves, and a program memory 105.

[0004] On the other hand, the positioning control device 100 is an SCB.
A communication controller 106 that exchanges data with the
A servo motor controller 108 for controlling the driving of the servo motor 107 to be controlled. The positioning control device 100 and the I / O module 104 correspond to functional modules.

[0005] The arithmetic control unit 101 controls the servomotor 107 and the I / O device 103 in accordance with the procedure of the program stored in the program memory 105. In such a conventional distributed production equipment control system, since information exchange between the PC and each positioning control device 100 is performed by serial communication via the SCB, an input / output connection between the PC and each positioning control device 100 is performed. The wiring can be reduced.

[0006]

However, in the above-mentioned conventional distributed production equipment control system, the I / O is installed in the PC.
Since the module 104 is provided, the I / O device 103
The number of input / output lines connecting the PC and the PC is increased, and wiring reduction is insufficient.

Therefore, a method of connecting all the function modules to a PC via a single SCB is considered. However, when a functional module requiring high-precision control such as a positioning control device and a functional module requiring relatively low-precision control are connected to a PC via a single SCB, the functional module is In order to prevent a communication time lag in exchanging information with a PC, an expensive communication controller must be provided in all functional modules. Therefore, a functional module sufficient for relatively low-precision control becomes complicated and expensive.

On the other hand, as a functional module incorporated in the distributed production equipment control system, in addition to the above-mentioned positioning control device and I / O module (input / output control device), a measurement module for connecting and controlling various measuring devices is provided. There are general-purpose devices such as a (measurement control device) and a personal computer. However, if an expensive communication controller is provided for all of these functional modules, the versatility of the above-mentioned measuring devices and general-purpose devices is reduced. In addition, since the devices and function modules connected to the system are configured by dedicated devices, the entire system is complicated, and it is difficult to make a change such as adding a new function module to the system once designed.

Accordingly, a first object of the present invention is to provide a distributed production equipment control system which realizes thorough wiring reduction between a host control device and a plurality of types of functional modules by a relatively simple mechanism. is there.

A second object of the present invention, in addition to the first object, is to provide a distributed production facility in which the configuration of functional modules is simplified to a minimum and the system design can be easily changed. It is to provide a control system.

[0011]

In order to achieve the above object, a distributed production equipment control system according to the present invention is a part of a production equipment, and comprises a host control device and a command from the host control device. With a functional module connected by serial communication that performs a predetermined operation based on the distributed production equipment control system that controls the controlled part of the production equipment,
One of the above functional modules, comprising one or more communication form conversion devices for converting a communication form of serial communication.

The distributed production equipment control system according to the present invention is a part of the production equipment, and is connected to a host control device by serial communication for performing a predetermined operation based on a command from the host control device. Function module
In the distributed production equipment control system that controls the controlled part of the production equipment, the host control device, or each other,
A first functional module including one or two or more communication form converters communicating in a first communication form via a first serial communication bus, and connected to the communication form converter,
A second communication module configured to communicate in a second communication mode via a second serial communication bus.

Further, the distributed production equipment control system of the present invention is a part of the production equipment, and includes a host control device,
A function module connected by serial communication that performs a predetermined operation based on a command from the host control device, in a distributed production equipment control system that controls a controlled part of the production equipment, the host control device, A communication mode conversion device connected to a host control device and connectable to one or more devices having a general-purpose communication function as controlled portions of the production facility.

Further, the distributed production equipment control system of the present invention is a part of the production equipment, and includes a host control device,
With a functional module connected by serial communication that performs a predetermined operation based on a command from the host control device, a distributed production equipment control system that controls a controlled part of the production equipment is connected to the host control device. And a functional module connected to the host control device via the communication relay device for maintaining the communication mode of serial communication.

Further, the distributed production equipment control system of the present invention is a part of the production equipment, and is connected to a host control device by serial communication which performs a predetermined operation based on a command from the host control device. In the distributed production equipment control system that controls the controlled part of the production equipment with the function module to be connected to the host controller,
A first functional module including a communication mode conversion device and a first communication relay device that communicate in a first communication mode via a first serial communication bus; and a second serial communication connected to the communication mode conversion device. And a second functional module including a second communication relay device that communicates in a second communication mode via a bus.

Here, the communication form is a data format and a communication control procedure for effectively operating the information exchange network. Further, converting the communication mode specifically includes converting a communication protocol, converting a communication speed, and converting a communication interface. In this case, it is only necessary to convert at least one of the communication protocol, the communication speed, and the communication interface, and the case where another form is changed as a result of converting one of them is also included. .

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is a part of a production facility such as a transfer machine, an assembling machine, an inspection machine, a measuring machine, a processing machine, and the like. It relates to a mold production equipment control system. The controlled part of the production equipment will be described in a specific embodiment, and in this section,
Embodiments of the main part of the invention relating to the distributed production equipment control system will be described with reference to the drawings.

FIG. 1 is a schematic diagram of a distributed production equipment control system according to an embodiment of the present invention. In FIG. 1, a host control device 1 that controls the entire system and a plurality of types of functional modules 2 and 3 that perform a predetermined operation based on a command from the host control device 1 are directly or indirectly connected by serial communication. Have been. A first function module 2 is directly connected to the host control device 1,
Communication is performed in the first communication mode A. The second function module 3 is indirectly connected to the host control device 1 via a function module 4 which is one of the first function modules 2, and communicates with the function module 4 via the first module. Communication is performed in a second communication mode B different from the communication mode A. The function module 4 has a function of a communication mode conversion device that converts between the communication mode A and the communication mode B.

The first functional module 2 is, for example, a functional module that requires relatively high-precision control.
A positioning control device corresponds to this. On the other hand, the second
The function module 3 is a function module that requires relatively lower precision control than the first function module 2, for example.

The communication protocol provided in the second function module 3 can be simplified by making the communication protocol of the second communication mode B simpler than that of the first communication mode A. Further, the second communication mode B is set to RS-2
By adopting a general-purpose standard such as 32C, the versatility of the second function module can be maintained. Therefore, the second functional module 3 does not require a high-precision and expensive communication controller unlike the conventional example. Further, since the second communication mode is of a general-purpose standard, it is possible to connect a general-purpose device such as a personal computer to the second function module, and the versatility of the entire system is reduced. There is no.

Further, the communication mode B is modified such that the communication protocol is the same as the communication mode A and the communication speed is lower than the communication mode A, or the communication protocol is simpler and the communication speed is lower. Implementation is also possible,
In such a case, the communication controller provided in the second function module 3 can be simplified by using the general-purpose IC.

Further, the communication mode B has the same communication protocol and communication speed as the communication mode A, and the communication interface, for example, the current value is lower than that of the communication mode A, or the communication speed is lower and the current value is lower. Various modifications are possible, for example, and the above-described effects can be obtained in such a case.

Next, the flow of information will be described. The first functional module 2 realizes high-precision control by frequently exchanging information with the host control device 1. For the second function module 3, the function module 4 performs a function like a host control device. That is, the second function module 3 issued from the host control device 1
The functional module 4 receiving the comprehensive information on the operation of the host controller 1 converts this information, frequently exchanges information with the second functional module 3, and transmits this information at a predetermined timing. Is communicated with.

This has the effect of preventing a reduction in the operating speed of the system due to traffic congestion in the serial communication bus connecting the host control device 1 and the first functional module 2.

Although a plurality of first function modules 2 are connected to the host controller 1 via the first SCB, the first function modules 2 can be connected via a single SCB. And the distance over which communication data can be transmitted via a single SCB is limited. This restriction similarly exists in the second functional module 3 that is indirectly connected to the host control device 1 via the second SCB and communicates in the second communication mode B. However, in an actual production facility such as a factory, a large number of functional modules can be provided to one host control device 1 in a different communication mode without restriction on the number and distance and in order to maintain versatility. There is a case where it is necessary to connect, but there is a problem that the connection cannot be realized due to the above limitation.

In the present invention, for example, the first function module communicating in the first communication mode A is connected to the first SCB within the above-mentioned restrictions, and a communication relay device (not shown) is provided ahead of it. Thus, the first SCB is extended, and the first functional module can be further connected to the extended first SCB, thereby solving this problem.

Similarly, in the case of the second functional module, the second SCB is connected to the second SCB within the restrictions, and the communication relay device is provided at the end of the second SCB, whereby the second SCB is connected. The above problem is solved by extending and connecting the second functional module to the extended SCB.

The communication relay device plays the role of a repeater, so as to eliminate the above-mentioned limitation and remove the limitation on the number of functional modules connected to the SCB and the distance over which communication data can be transmitted. If the communication relay device is provided at a plurality of locations, the SCB can be extended a plurality of times, so that a large number of functional modules can be connected.

As described above, the distributed production equipment control system of the present invention is an object to be controlled, and controls the controlled parts of the production equipment at a relatively low price due to its versatility and at a relatively low cost. In addition, it is possible to control a large number under different conditions, which can contribute to a reduction in the cost of production equipment, an improvement in efficiency, and an improvement in ease of use.

The controlled part is a part of the production equipment except for the distributed production equipment control system according to the present invention, and includes a case where each controlled part is a production equipment. explain. (First Embodiment) Before describing the first embodiment of the present invention, FIG. 2 shows a controlled part of a production facility to be controlled by a distributed production facility control system according to the present invention. It will be described using FIG. The production equipment to be controlled in the present embodiment is an appearance inspection and transport device (hereinafter, referred to as an “appearance inspection device”) 60 for a printed circuit board on which an IC is mounted. The appearance inspection apparatus 60 is an apparatus for automatically inspecting whether or not the mounted state is normal in appearance after mounting an electric component such as an IC on a printed circuit board. Hereinafter, a printed circuit board on which electric components are mounted by a mounting machine (not shown) is referred to as a mounting board.

The visual inspection device 60 comprises a personal computer 61, a loader 62, a low resolution detection unit 66, a high resolution detection unit 72, and an unloader 76. The personal computer 61 stores a control program for centrally managing the operations of the loader 62, the low-resolution inspection unit 66, the high-resolution inspection unit 72, and the unloader 76. The loader 62 includes a cassette 63
The board detection unit 64 detects whether or not the mounting board is stored at a predetermined position in the
It is moved by the Z moving mechanism 65, and the mounting substrates are placed one by one on a transport belt 67a described later.

The low resolution inspection section 66 includes a transport belt 67a.
The upper mounting board is stopped at an appropriate position on the transport belt 67a, positioned by the XY moving mechanism 71, and the presence / absence detecting unit 68 takes in the component presence / absence state at the appropriate position in the mounting board, and the processing unit 69 Then, the presence / absence state is processed, and the determination unit 70 makes a pass / fail judgment by comparing with the proper state, and transfers the mounting substrate to the transport belt 67b of the high resolution inspection unit 72 by the transport belt 67a. The high-resolution detection unit 72 stops the mounting substrate on the transport belt 67b at an appropriate position on the transport belt 67b, positions the XY moving mechanism 71, and captures the component mounting state of the mounting substrate by the image capturing unit 73. The mounting state is image-processed by the processing section 74, and a pass / fail decision is made by comparison with the proper state by the judging section 75, and the mounting substrate is transferred to the unloader 76 by the transport belt 67b.

The unloader 76 sorts the mounted substrates passed from the high-resolution inspection unit 72 by the substrate selection unit 77 according to the pass / fail of the inspection result, and stores the non-defective mounted substrates in the non-defective cassette 78 by the XYZ moving mechanism 65. The defective mounting board is stored in the defective cassette 79.

The processing section 69 and the determination section 70 in the low-resolution detection section 66 and the processing section 74 and the determination section 75 in the high-resolution detection section 72 are not shown in the drawings and store programs for processing and determination. PC.

The appearance inspection apparatus 60 includes an XYZ moving mechanism 65, conveying belts 67a and 67b, and an XY moving mechanism 71.
For example, an actuator control device to be described later is connected. The appearance inspection device 60 includes:
Since input devices such as sensors and switches and output devices such as lamps, LEDs, and solenoid valves are provided, an input / output control device described later is connected. Appearance inspection device 60
Is provided with a personal computer (not shown) that stores and calculates the input amount of the mounting board, the non-defective product amount, and the defective product amount, and is connected to a communication mode conversion device described later. Therefore, the distributed production equipment control system of the present invention controls the appearance inspection device 60, and the above-described devices and the distributed production equipment control system of the present invention combine to form a production equipment.

Next, a distributed production equipment control system according to the first embodiment will be specifically described with reference to FIGS. FIG. 3 shows a functional block diagram of the distributed production equipment control system, and FIG. 4 shows a more detailed functional block diagram. In the following description, components having the same functions are denoted by the same reference numerals, and detailed description is omitted. Also, the communication form conversion device will be described as a type of functional module.

In FIG. 3, the host control device 1 has a function of operating a plurality of types of functional modules connected by a serial communication bus SCB 21 to control the whole, and
It includes a communication controller 2a, an operation control unit 3, and a program memory 4. The arithmetic and control unit 3 issues a command for controlling the whole. The program memory 4 stores a control program. The communication controller 2a performs communication with each functional module via the serial communication bus SCB21. The host control device 1 is an example of a production facility.

As functional modules, an actuator control device 5, an input / output control device 11, a measurement control device 15, and a communication form conversion device 18 are provided. The actuator control device 5 is a module that controls driving devices such as a motor, and includes a communication controller 2b, a motor controller 6, and an address setting switch 7. A motor driver 8, a motor 9, and a detector 10 for detecting a displacement of the motor 9 are connected to the actuator control device 5. The actuator control device 5, the motor driver 8, the motor 9, and the detector 10 constitute one form of production equipment.

The input / output control device 11 is a module that controls the interface with the input / output devices, and includes a communication controller 2b, an I / O 12, and an address setting switch 7. The I / O 12 includes, as input / output devices,
Input devices 13 such as sensors and switches, lamps, LE
Output devices 14 such as D, relay, solenoid valve and the like are connected. These input / output control device 11, input device 1
3. The output equipment 14 constitutes one form of production equipment.

The measurement control device 15 is a module for performing interface control with a device for measurement or a measurement device, and includes a communication controller 2b, a data conversion unit 16, and an address setting switch 7. The data conversion unit 16 transmits various measurement results to the measurement control device 1 using voltage values and the like.
5 is connected to the measuring instrument 17. The measurement control device 15 and the measuring device 17 constitute one form of production equipment.

The communication mode converter 18 is a module for controlling the communication mode of the input / output controller and the measurement controller, for example, the difference in protocol, communication speed, etc., and includes the communication controller 2b, the communication converter 19, and the address setting switch 7. It has. The communication conversion unit 19 includes a device 20 with a built-in communication function, which is a device that communicates with the host control device 1 in a communication mode different from the communication mode of each functional module (5, 11, 15, 18). Connected by communication. The communication form conversion device 18 and the communication function built-in device 20 constitute one form of production equipment.

The host controller 1 and each functional module (5, 11, 15, 18) are connected by the SCB 21. The SCB 21 includes a serial communication signal bus and a synchronization signal bus in order to guarantee the operation of the entire distributed production equipment control system. Therefore, each device is connected by serial communication and by a synchronization signal.

In relation to FIG. 1, the actuator control unit 5, the input / output control unit 11, the measurement control unit 15
The communication form converter 18 corresponds to the first function module 2, and the communication form converter 18 corresponds to the function module 4, and the communication function built-in device 20 corresponds to the second function module 3. The communication mode between the host control device 1 and each of the functional modules (5, 11, 15, 18) corresponds to the first communication mode A, and the communication mode between the communication mode conversion device 18 and the device 20 with a communication function is the same. This corresponds to the second communication mode B.

FIG. 2 shows an example in which the actuator control device 5, the input / output control device 11, the measurement control device 15, and the communication form conversion device 18 are connected to the host control device 1 one by one. The number of functional modules to be combined may be appropriately increased or decreased according to the specifications of the system.

The master-slave relationship of the serial communication is such that the communication controller 2a on the host controller 1 side is the master station and the communication controller 2b on each functional module (5, 11, 15, 18) is the slave station. The connection is a 1: 4 connection with one master station and four slave stations.

From the viewpoint of data exchange between the host controller 1 and each of the functional modules (5, 11, 15, 18), the communication controller 2a simply operates the arithmetic controller 3 of the host controller 1 and the actuator controller. The motor controller 6 on the device 5 side, the I / O 12 on the input / output control device 11 side, the data conversion unit 16 on the measurement control device 15 side, and the communication conversion unit 19 on the communication form conversion device 18 side. And the operation control unit 3 and the motor controller 6, the I / O 12, the data conversion unit 16 and the communication conversion unit 19 behave as if they are directly connected.

Accordingly, the arithmetic control unit 3 of the host control device 1, the motor controller 6 of the actuator control device 5, the I / O 12 of the input / output control device 11, the measurement control device 1
The data converter 16 of FIG. 5 and the communication converter 19 of the communication form converter 18 can concentrate on the original program execution or motor control, input / output control, data conversion, and communication form conversion without being directly involved in complicated communication control. .

The host control device 1 has an address setting switch 7 in each functional module (5, 11, 15, 18).
The function module is sorted according to the address set in the above, and a command is transmitted together with this address. Each functional module executes a process in accordance with a command to which an address relating to its own device is attached, and does not execute a process in accordance with a command to which an address relating to another device is attached.

The order of actuator control will be described below. First, the host control device 1 instructs the designated actuator control device 5 on the operation mode. The actuator controller 5 prepares for this, and returns a response to the mode command to the host controller 1.

When the host controller 1 recognizes a normal response to the mode command, it activates the operation start signal together with the position command value. If the motor controller 6 in the actuator control device 5 executes the positioning control, that is, the drive control of the motor 9 based on the position command value and the operation start signal, and determines that the operation is completed by the feedback signal from the detector 10, Activate the distribution completion signal and return it to the host controller 1. The host control device 1 recognizes the completion and makes the operation start signal non-active. Thereafter, the actuator control device 5 makes the distribution completion signal non-active. When changing the operation mode, the same procedure is performed.

The order of input / output control is the same as the order of actuator control. First, the host control device 1 transmits a processing completion signal to the input / output control device 11, and the input / output control device 11 activates the processing completion signal when the execution of the previous instruction has been completed. If the execution has not been completed, the processing completion signal is made non-active and returned to the host control device 1.

The host controller 1 recognizes whether or not the processing has been completed by responding to the processing completion signal. If the processing has not been completed, the host controller 1 waits until the processing is completed or shifts to another command. If the processing is completed, the specified input / output control device 11
To input / output operation. I / O in the input / output control device 11
O12 executes input / output control based on the input / output operation command, receives input data from the input device 13 and outputs data to the output device 14, and completes all of these input / output operations. Activate the processing completion signal.

The order of measurement and communication mode conversion is the same as the order of input / output control, and the host control device 1 transmits a processing completion signal to the specified measurement control device 15 or communication mode conversion device 18 and On the other hand, the measurement control device 15 and the communication form conversion device 18 which correspond to the received address activate the processing completion signal when the execution of the previous command has been completed, and when the execution of the previous command has not been completed, the processing is completed. Deactivate the signal and return it to the host controller 1.

The host controller 1 recognizes whether or not the processing has been completed based on the response to the processing completion signal. If the processing has not been completed, the host controller 1 waits until the processing is completed or shifts to another command. If the processing has been completed, a measurement operation or a communication form conversion operation is instructed to the designated measurement control device 15 or communication form conversion device 18. The data conversion unit 16 in the measurement control device 15 that matches the designated address executes a process of receiving the data measured by the measuring device 17 in accordance with the measurement operation command and converting the data into digital data. When all processing is completed, the processing completion signal is activated.

Similarly, the communication conversion unit 19 in the communication form conversion apparatus 18 which matches the designated address can change the contents of the command from the host control apparatus 1 in accordance with the communication form conversion operation command. The communication mode is converted into the communication mode such as the communication protocol of the device 20 with a built-in communication function, and the process of transmitting the data to the device 20 with a built-in communication function is executed. I do.

Next, the distributed production equipment control system will be described in more detail with reference to FIG. The communication controller 2a includes a serial bus interface (referred to as a serial bus IF in the figure) 22a and a serial communication unit 23a. The serial bus interface 22a connects to the SCB 21. The serial communication unit 23a analyzes a control signal from the arithmetic and control unit 3 and sends it to the serial bus interface 22a. Is analyzed and sent to the arithmetic and control unit 3. Similarly, the communication controller 2b includes a serial bus interface 22b and a serial communication unit 23.
b. The communication controller 2a and the communication controller 2b have the same configuration and perform the same function.
Also in the communication form conversion device 18, the communication controller 2
b has the same configuration as the communication controller 2a, has a serial bus interface 22b and a serial communication unit 23b, and performs the same function.

The motor controller 6 of the actuator control device 5 includes a CPU 24, an I / O port (input / output interface) 25, a timer 26, a RAM 27, an RO
M28 and a pulse generator 29. The pulse generator 29 outputs command values for position control and speed control of the motor 9 to the motor driver 8 as pulse numbers and pulse frequencies.

The I / O 12 of the input / output control device 11
CPU 24, I / O port 25, timer 26, RAM2
7, a ROM 28, an input unit 30, and an output unit 31. The input device 30 is connected to the input device 13, and the output device 31 is connected to the output device 14.

The data converter 16 of the measurement controller 15
Are the CPU 24, the I / O port 25, the timer 26, the RA
M27, ROM 28, 4-channel A / D converter 32 and I / V converter 33. The four-channel A / D converter 32 has a function of converting up to four types of analog voltage values into digital values. The I / V converter 33 has a function of converting a current value to a voltage value, and is connected to the four-channel A / D converter 32.

The timer 26 of the measurement control device 15 includes:
A period detector 34 that detects a period (frequency) and outputs a signal corresponding to the change in the detected period is connected.
The four-channel A / D converter 32 includes a plurality of capacitive position sensors 3 that output a measured position result as a voltage value.
5 is connected. A current detector 36 is connected to the I / V converter 33. The above-mentioned period detector 34, 4-channel A / D converter 32, capacitance type position sensor 35
The current detector 36 and the current detector 36 correspond to the measuring device 17 in FIG.

The communication converter 1 of the communication mode converter 18
9 is a CPU 24, I / O port 25, timer 26, R
AM27, ROM28, plural RS-232C conversion units 3
7. RS-232C conversion unit 3
Reference numeral 7 converts a communication form into an RS-232C standard which is a kind of serial communication standard. This RS-232C converter 3
7 is connected to a digital oscilloscope (hereinafter, referred to as DSO) 38 having an RS-232C port and a personal computer 39. The digital oscilloscope 38 and the personal computer 39 are connected to the communication function built-in device 20 shown in FIG.
Is equivalent to

Each functional module (5, 11, 15, 1)
In 8), the CPU 24 controls the driving of each functional module as a whole, the I / O port 25 connects to the address setting switch 7, the timer 26 outputs a clock signal as a reference for the operation of each functional module, RAM27 is C
The PU 24 temporarily stores data when performing calculations and controls, and the ROM 28 stores an operation control program and the like unique to each functional module. The ROM 28 is individually provided in each of the functional modules (5, 11, 15, and 18), because a program processed by the CPU 24 differs according to the operation of each functional module. Therefore, a program suitable for the operation is stored. That's why.

Next, the operation of the distributed production equipment control system according to the first embodiment will be described in detail with reference to FIG. When the system is powered on, the CPU 24 in each functional module (5, 11, 15, 18) sets and initializes the I / O port 25, timer 26, RAM 27, serial communication unit 23b, and the like.

Each function module (5, 11, 15, 18) connected to the host controller 1 via the SCB 21
The address set by the address setting switch 7 is recognized by the host control device 1. As a result, each of the functional modules (5, 11, 15, and 18) can be controlled by the host control device 1, and operates as described below.

The host controller 1 converts the data from the arithmetic and control unit 3 into serial data and transmits the serial data to the serial communication signal bus of the SCB 21, and the communication controller 2 a transmits the received data from the serial communication signal bus of the SCB 21 Is reproduced and sent to the arithmetic and control unit 3.

When receiving the serial data from the host control device 1, the actuator control device 5 reproduces the data and performs an operation according to the data. For example, in the case of a state monitoring command, the number of pulses output from the pulse generator 29 is transmitted to the host control device 1, and in the case of a movement command, the pulse generator 29 outputs pulses at the specified number of pulses and pulse frequency, and the motor is driven. The motor 9 is rotated via the driver 8.

The input / output control device 11 is a host control device 1
When the serial data is received, the data is reproduced and the operation corresponding to the data is performed. For example, in the case of an input command, the state of the input device 13 is received by the input unit 30, and in the case of an output command, the state of the input device 13 is transmitted from the output unit 31 to the output device 31.

When receiving the serial data from the host control device 1, the measurement control device 15 reproduces the data and performs an operation according to the data. For example, in the case of a cycle detection command, a signal whose cycle (frequency) changes from the cycle detector 34 is cycle-detected by the timer 26, and in the case of a position detection command, a voltage value detected by the capacitance type position sensor 35 Is converted by the A / D converter 32 into an A / D converter, and in the case of a current detection command, the I / V converter 33 converts the current data of the current value detected by the current detector 36 into an I / V converter. Later, the A / D converter 32 performs A / D conversion.

When receiving the serial data from the host controller 1, the communication form converter 18 reproduces the data and performs an operation according to the data. For example, in the case of a DSO operation command, the communication mode is converted by the RS-232C conversion unit 37 in order to send the operation command to the DSO 38 in accordance with the RS-232C standard.
The RS-232C converter 37 converts the communication mode in order to send an operation command to RS9 according to the RS-232C standard.

Next, each function module (5, 11, 1)
The synchronous operation of (5, 18) will be described. Here, the operation of rotating the motor 9 at the timing when the input from the input device 13 becomes active will be described.

In the host controller 1, a command for rotating the motor 9 at the timing when the input from the input device 13 becomes active is stored in the program memory 4 in advance. After receiving the command A, the ROM 28 in the actuator control device 5 stores the SC
A program for starting the output of the pulse generator 29 when the synchronization signal in B21 becomes active is stored in advance. On the other hand, in the ROM 28 in the input / output control device 11, a program for activating the synchronization signal in the synchronization signal bus of the SCB 21 when it is determined that the input from the input device 13 is active is stored in advance.

In this state, when command A is transmitted as serial communication data of SCB 21 from host control device 1 to actuator control device 5 and input / output control device 11, actuator control device 5 controls motor 9 After performing various settings for rotation, the apparatus enters a standby state, and the input / output control device 11 waits for an input from the input device 13. afterwards,
Assuming that the input from the input device 13 becomes active at a certain timing, the input / output control device 11 activates the synchronization signal to the synchronization signal bus in the SCB 21. Then, the actuator control device 5 starts the output of the pulse generator 29 and the motor 9 rotates.

According to the distributed production equipment control system according to the first embodiment, not only an actuator control device but also an input / output control device having a communication controller and an address setting switch, a measurement control device, and a communication form conversion device are provided. And the host controller is connected by serial communication, so the wiring between the host controller and each function module can be reduced, and synchronous operation between each function module is possible without generating a time lag due to communication Becomes

Further, since each of the actuator control device, the input / output control device, the measurement control device, and the communication form conversion device has a CPU, it does not impose an excessive load on the arithmetic control unit in the host control device. The host controller can integrally manage and control actuator control, input / output control, various measurements, and data exchange with general-purpose devices.

In the present embodiment, the production equipment corresponding to the transfer machine and the inspection machine has been described as the controlled part other than the distributed production equipment control system of the production equipment. The present invention can be applied to a production facility such as a processing machine as a control target of the distributed production facility control system of the present invention. (Second Embodiment) A distributed production equipment control system according to a second embodiment will be specifically described. FIG.
2 shows a functional block diagram of the distributed production equipment control system. The same reference numerals denote the same functions as those in the distributed production equipment control system according to the first embodiment, and a description thereof will be omitted. In addition, the description will be made by regarding the distributed production equipment control system and the controlled parts controlled by this system as a whole as production equipment.

A feature of this distributed production equipment control system is that an input / output control device using a communication mode different from that of the input / output control device 11 of the distributed production equipment control system according to the first embodiment is converted to a communication mode. It is at the point connected to the device. In FIG. 5, the SCB 21a connects the host control device, the two actuator control devices 5, and the communication mode conversion device 40 by serial communication in a first communication mode (this is called communication A). The SCB 21b connects the communication form converter 40 and the two input / output controllers 41 by serial communication (hereinafter referred to as communication B) in a second communication form.

The communication A performs high-speed communication using the same communication protocol as that of the distributed production equipment control system according to the first embodiment, and enables high-speed and high-precision actuator control. On the other hand, the communication B has a simpler communication protocol than the communication A, and has a lower communication speed.

The communication converter 42 of the communication form converter 40 includes a communication protocol converter 43 having a function of converting the communication protocol relating to the communication A into a protocol adapted to the communication B, and a function similar to that of the communication controller 2b. Is provided. A serial communication unit 23c and a serial bus interface 22c are provided in the communication controller 2c.
The communication controller 2a and the communication controller 2b have the same configuration and perform the same function. Also in the communication form converter 40, although the detailed configuration of the communication controller 2b and the communication controller 2c is different depending on the communication form, the first communication is the same as that of the communication controller 2b and the serial communication unit. The function according to the mode and the second communication mode is performed.

The communication protocol conversion unit 43 communicates a protocol for communication between the host control device 1, the actuator control device 5, and the communication format conversion device 40 between the communication format conversion device 40 and the input / output control device 41. Or a protocol for communication between the communication form converter 40 and the input / output controller 41 is converted to a protocol for communication between the host controller 1 and the actuator controller 5 and the communication form converter 40. .

The two input / output control devices 41 include a communication controller 2d, a sub-address setting switch 44 and an I / O
It is composed of O12. Sub address setting switch 44
Is a switch for setting a unique address for each input / output control device 41 for communication between the communication form conversion device 40 and the input / output control device 41. An input / output unit 46 for connecting an input / output device 45 is provided in the I / O 12.

Referring to FIG. 1, the two actuator control devices 5 are respectively connected to the first functional module 2.
, The communication mode conversion device 40 corresponds to the function module 4, and the two input / output control devices 41 correspond to the second function module 3.

The host controller 1, actuator controller 5, motor driver 8, motor 9, detector 1
0, a communication form converter 40, an input / output controller 41, and an input / output device 45 constitute one form of production equipment.

Next, the operation of the distributed production equipment control system according to the second embodiment will be described in detail with reference to FIG. When the system is powered on, the CPU 24 in each functional module (5, 40, 41)
5, timer 26, RAM 27, serial communication unit 2
3 is set and initialized. The address set in the sub-address setting switch 44 of the input / output control device 41 connected to the communication mode conversion device 40 via the SCB 21b is recognized by the communication mode conversion device 40, and
The addresses set in the address setting switches 7 of the actuator control device 5 and the communication form conversion device 40 that are connected to the host control device 1 via a are recognized by the host control device 1 including the input / output control device 41. Is done.

In this state, the two actuator control devices 5, the communication form conversion device 40 and the two input / output control devices 4
1 is in a controllable state by the host control device 1 and operates as described below.

Communication controller 2a of host controller 1
Converts the data from the arithmetic control unit 3 into serial data and transmits the serial data to the SCB 21a, and also reproduces the data received from the serial communication signal bus of the SCB 21a and sends it to the arithmetic control unit 3.

Upon receiving the serial data from the host control device 1, the two actuator control devices 5 reproduce the data relating to the address of the own device set by the address setting switch 7 and perform an operation according to the data. For example, in the case of a state monitoring command, the number of pulses output from the pulse generator 29 is transmitted to the host control device 1, and in the case of a movement command, the pulse generator 29 outputs pulses at the specified number of pulses and pulse frequency. Motor driver 8
The motor 9 is rotated via.

Upon receiving the serial data from the host control device 1, the communication form converter 40 reproduces the data and performs an operation according to the data. For example, if it is an input control command, the communication protocol conversion unit 43 converts the protocol of communication A into the protocol of communication B, and
An input control command is transmitted as serial data via the SCB 21b to the input / output control device 41. If the input control command is an output control command, the communication protocol conversion unit 43 converts the communication A protocol into the communication B protocol, SCB2
The output control command is transmitted as serial data via 1b.

Upon receiving the serial data from the communication form converter 40, the two input / output controllers 41 reproduce the data related to the address of the own device set by the sub-address setting switch 44 and perform an operation corresponding to the data. . For example, if the input command is an input command, the state of the input / output device 45 is input to the input / output unit 46, and if the output command is an output command, the status is output from the input / output unit 46 to the input / output device 45.

According to the distributed production equipment control system according to the second embodiment, the host control device, the actuator control device, and the communication mode conversion device are connected by serial communication (communication A) for high-speed communication. Since the conversion device and the input / output control device are connected by serial communication (communication B) for low-speed communication, the communication controller of the input / output control device can have a simple configuration. In addition, the number of functional modules can be increased and the pseudo long wiring of the SCB 21a can be easily achieved, and the communication A and the communication B can communicate with each other using the most suitable protocols.

Further, by providing a communication controller and a sub-address setting switch also in the input / output control device, data exchange between the input / output control device and the host control device having a different communication mode from that of the actuator control can be performed in a distributed arrangement by serial communication. It can be realized, and wiring with the host control device can be reduced.

Further, since the input / output control device is connected via the communication mode conversion device, it is possible to prevent the operation speed of the system from being lowered due to the traffic congestion in the SCB 21a. Function modules can be increased. (Third Embodiment) Next, a distributed production equipment control system according to a third embodiment will be specifically described. 6 and 7 are functional block diagrams of the distributed production equipment control system. The same reference numerals denote the same functions as those in the distributed production equipment control system according to the first embodiment, and a description thereof will be omitted. In addition, the description will be made by regarding the distributed production equipment control system and the controlled parts controlled by this system as a whole as production equipment.

A feature of this distributed production equipment control system is that the communication form converter 18 of the distributed production equipment control system according to the first embodiment has a function of converting the communication form into a plurality of general-purpose communication forms. The point is that it is configured to be connectable to a plurality of general-purpose communication function built-in devices 20a as described later by replacing the communication form conversion device 18a.

In FIG. 6 and FIG. 7, the host control device 1 has one input / output control device 11 and two communication form conversion devices 18a via a serial communication bus SCB21c.
Is connected to

The communication converter 19a of the communication mode converter 18a includes a CPU 24, an I / O 25, a timer 26,
In addition to the M27 and the ROM 28, the RS-232C conversion unit 37
a, RS-422 converter 47, Ethernet converter 4
8 and a GP-IB converter 49.

The RS-232C converter 37 has a CPU
24 is converted to the communication format of the RS-232C standard, and the data of the RS-232C standard is
The data is converted into data that can be processed in 24. RS-422 above
The conversion unit 47 converts the data handled by the CPU 24 into an RS-
The data is converted into a communication format based on the 422 standard or data based on the RS-422 standard is converted into data that can be processed by the CPU 24.
The Ethernet conversion unit 48 converts data handled by the CPU 24 into a communication format of the Ethernet standard,
The data of the Ethernet standard is converted into data that can be processed by the CPU 24. The GP-IB conversion unit 49 includes a CPU
The CPU 24 converts data handled by the G.24 into a communication mode of the GP-IB standard, and converts data of the GP-IB standard into data that can be processed by the CPU 24.

The RS-232C conversion section 37a has the RS-2
A barcode reader 50 having a 32C communication port is connected. The barcode reader 50 outputs the read barcode data to the RS-232C conversion unit 37a via the RS-232C communication port.

The RS-422 conversion section 47 has an RS-422 conversion section.
A control device 51 having a communication port is connected. The control device 51 executes a sequential operation according to data input through the RS-422 communication port, or outputs collected data to the RS-422 conversion unit 47 through the RS-422 communication port. I do.

A personal computer 52 having an Ethernet communication port is connected to the Ethernet converter 48. G
A measuring device 53 having a GP-IB communication port is connected to the P-IB converter 49.

The bar code reader 50 and the control device 5
1, the personal computer 52, and the measuring device 53 correspond to the device 20a with a built-in general-purpose communication function. These host control device 1, input / output control device 11, input device 13, output device 1
4. Communication form converter 18a, general-purpose communication function built-in device 2
0a constitutes one form of production equipment.

In the description of the present embodiment, SCB2
Although one input / output controller 11 and two communication form converters 18a are described as being connected to the host controller 1 via 1c, it is needless to say that the present invention is not limited to this number and combination. .

Next, the operation of the distributed production equipment control system according to the third embodiment will be described in detail with reference to FIGS. 6 and 7. Host controller 1, input / output controller 11,
Communication form converter 18a, input device 13, output device 1
4. When the power is turned on to the communication function built-in device 20 and the like, the CPU 2 of the input / output control device 11 and the communication form conversion device 18a
4 sets and initializes the I / O 25, the timer 26, the RAM 27, the serial communication unit 23b, and the like.

The address set in the address setting switch 7 of the input / output control device 11 and the communication form conversion device 18a connected to the host control device 1 via the SCB 21c is recognized by the host control device 1. As a result, the input / output controller 11 and the communication form converter 18a
Becomes a controllable state for the host control device 1,
It operates as described below.

The host controller 1 converts the data from the arithmetic and control unit 3 into serial data and transmits it to the serial communication signal bus of the SCB 21c, and the communication controller 2a converts the data received from the serial communication signal bus of the SCB 21c. Is reproduced and sent to the arithmetic and control unit 3.

The input / output control device 11 is a host control device 1
When the serial data is received, the data is reproduced and the operation corresponding to the data is performed. For example, in the case of an input command, the state of the input device 13 is received by the input unit 30, and in the case of an output command, the state of the input device 13 is transmitted from the output unit 31 to the output device 31.

When receiving the serial data from the host controller 1, the plurality of communication form converters 18a reproduce the data and perform an operation according to the data. For example, in the case of the personal computer operation instruction A, the Ethernet converter 48 converts the operation instruction into a signal in the Ethernet format in order to send the operation instruction to the personal computer 52 via the Ethernet. If it is a barcode reader operation command, in order to send an operation command to the barcode reader 50 via RS-232C,
The signal is converted into an RS-232C signal by an RS-232C conversion unit 37a. If it is a control device operation command, the RS-422 conversion unit 47 converts the control device 51 into an RS-422 format signal in order to send the operation command to the control device 51 via the RS-422. If it is a measuring device operation command, the measuring device 5
To send an operation command to GP3 via GP-IB,
The GP-IB converter 49 converts the signal into a GP-IB format signal. In addition, there may be a case where there are a plurality of operation commands for the one type of device 20 with a built-in communication function described in the first embodiment, but the content of the operation commands does not matter here.

According to the distributed production equipment control system according to the third embodiment, the input / output control device having the communication controller and the address setting switch, the communication mode conversion device, and the host control device are connected by serial communication. In addition, data exchange with input / output control devices and devices with built-in general-purpose communication functions can be realized in a distributed arrangement by serial communication, and wiring with the host control device can be reduced.

Further, since the CPU is mounted on each of the input / output control device and the communication mode conversion device, the host control device can be integrated and unified without putting an excessive burden on the arithmetic control unit in the host control device. Can manage and control input / output control and data exchange with general equipment.

Further, since the communication mode conversion device has a conversion unit for a plurality of types of general-purpose communication modes, connection with various devices required for the control system can be easily performed, and host control can be performed. Since there are a plurality of communication form conversion devices that are connected to the device by serial communication, it is easy to connect to a large number of various devices. (Fourth Embodiment) Next, a distributed production equipment control system according to a fourth embodiment will be specifically described. 8 and 9 are functional block diagrams of the distributed production equipment control system. The same functions as those in the distributed production equipment control system according to the first and second embodiments are denoted by the same reference numerals, and description thereof is omitted. In addition, the description will be made by regarding the distributed production equipment control system and the controlled parts controlled by this system as a whole as production equipment.

A feature of this distributed production equipment control system is that a communication relay device for maintaining a communication form of serial communication is connected, and a functional module is connected via the communication relay device. 8 and 9, there are three SCs.
The communication mode of the serial communication via B21d is the same. One SCB 21d connects the host control device 1 to the actuator control device 5a, the communication mode conversion device 40, and the communication relay device 54, and another SCB 21d connects to the communication relay device 54. Connect an actuator control device (not shown)
Still another SCB 21d connects the communication relay device 54 and the actuator control device 5b, and connects all three SCBs 21d.
, The host control device 1, the actuator control devices 5a and 5b, and the communication form conversion device 40 are all connected by serial communication. Similarly, there are two SCBs 21e
Are the same in the form of serial communication via
The CB 21e includes the communication mode conversion device 40 and the input / output control device 4
1a and the communication relay device 55, and another SCB 21
e connects the communication relay device 55 and the input / output control device 41b, and the communication form conversion device 40 and the input / output control devices 41a and 41b connected to all two SCBs 21e are all connected by serial communication.

The communication relay device 54 is equipped with three communication controllers 2b which are the same as the actuator control devices 5a and 5b, and transmits serial data received by a certain communication controller 2b directly to the remaining two communication controllers 2b. The serial data is transmitted as it is from the remaining two communication controllers 2b. Similarly, the communication relay device 55 has two communication controllers 2d, which are the same as the input / output control device 41, and directly transmits serial data received by a certain communication controller 2d to the remaining one communication controller 2d. The serial data is transmitted as it is from the remaining one communication controller 2d.

Here, the number of SCBs 21d is three,
Although the number of B21e is two, the number of communication controllers 2b of the communication relay device 54 is three, the number of communication controllers 2d of the communication relay device 55 is two, and the type of SCB21 is two, the numbers are not limited thereto. Needless to say, it is not.

In relation to FIG. 1, the actuator control devices 5a and 5b correspond to the first function module, the communication form conversion device 40 corresponds to the function module 4, and the input / output control device 41a, 41b corresponds to a second functional module. Also, the host controller 1 and the first
The communication mode of the functional module 2 corresponds to the first communication mode A, and the communication mode conversion device 40 and the input / output control device 41
The communication modes in a and 41b correspond to the second communication mode B.

The host controller 1, actuator controllers 5a and 5b, motor driver 8, motor 9, detector 10, communication mode converter 40, input / output controller 41
a, 41b, the input / output device 45, the communication relay device 54, and the communication relay device 55 constitute one form of production equipment.

In the description of the present embodiment, SCB2
The two actuator control devices 5 connected to the host control device 1 via 1d and the communication form conversion device 40
Although the number of input / output control devices 41 connected via the SCB 21d and the SCB 21e is shown as two, it is needless to say that the number and combination are not limited.

Next, the operation of the distributed production equipment control system according to the fourth embodiment will be described with reference to FIGS. When the system is powered on, the CPU 2 in each functional module (5a, 5b, 40, 41a, 41b)
Reference numeral 4 sets and initializes the I / O port 25, the timer 26, the RAM 27, the serial communication unit 23, and the like. SC
The address set in the sub-address setting switch 44 of the input / output control devices 41a and 41b connected to the communication form conversion apparatus 40 via B2e is the communication form conversion apparatus 4
0 and further coupled to the host controller 1 via the SCB 21d.
The address set in the address setting switch 7 of the communication form conversion device 40 is the input / output control device 41a, 4
1b is recognized by the host control device 1.

In this state, the two actuator controllers 5a and 5b, the communication mode converter 40, and the two input / output controllers 41a and 41b become controllable by the host controller 1, and operate as described below. .

Communication controller 2a of host controller 1
Converts the data from the arithmetic control unit 3 into serial data and transmits the serial data to the SCB 21d, and also reproduces the data received from the serial communication signal bus of the SCB 21d and sends it to the arithmetic control unit 3.

When receiving the serial data from the host control device 1, the actuator control device 5a reproduces the data relating to the address of its own device set by the address setting switch 7 and performs an operation according to the data.

When receiving the serial data from the host controller 1, the communication form converter 40 reproduces the data and performs an operation according to the data. For example, if it is an input control command, the communication protocol conversion unit 43 converts the protocol of communication A into the protocol of communication B, and
a, the input control command is transmitted as serial data to the input / output control device 41a via the SCB 21e. SC
An operation such as transmitting an output control command as serial data via B21e is performed.

When receiving the serial data from the communication form converter 40, the input / output controller 41a reproduces the data relating to the address of its own device set by the sub-address setting switch 44 and performs an operation corresponding to the data.

Here, paying attention to the communication relay device 54, when serial data is received by a certain communication controller 2b, the serial data is directly transmitted to the remaining two communication controllers 2b, and the serial data is directly transmitted from the remaining two communication controllers 2b. Therefore, three SCBs 21d
Are connected to the host control device 1 by serial communication.

Similarly, when attention is paid to the communication relay device 55, when serial data is received by a certain communication controller 2d, the serial data is directly transmitted to the remaining one communication controller 2d, and the serial data is directly transmitted from the remaining one communication controller 2d. Therefore, two SCBs 21e
The input / output control devices 41a and 41b connected to the host control device 1 are all connected to the host control device 1 through serial communication via the communication mode conversion device 40.

The communication relay device 5 on the SCB 21d
Although both the number 4 and the number of communication relay devices 55 on the SCB 21e have been described as one, it is needless to say that the present invention is not limited to this.

According to the distributed production equipment control system according to the fourth embodiment, the host control device 1 and the actuator control device 5a, which is each functional module, are connected via the communication relay device 54 and the communication relay device 55. 5b, the communication form converter 40, and the input / output controllers 41a and 41b are connected by serial communication. Therefore, according to the type of the serial bus interface 22, the length of the SCB 21, which is restricted by the single SCB 21, can be extended, and the number of coupled functional modules can be increased.

Further, the present invention implemented by the above-described embodiments can be variously modified without departing from the gist of the present invention. For example, in the above description, two communication modes are used, but three or more communication modes may be used in one distributed production equipment control system.
In this case, another communication form converter may be connected to the communication form converter.

Although the embodiments of the present invention have been described above, the present invention includes the following inventions. That is, (1) In a distributed production equipment control system in which a host control device and a plurality of actuator control devices are connected and the host control device and each actuator control device are connected by serial communication, they are connected by serial communication. A distributed production equipment control system, wherein the device includes at least one of an input / output control device, a measuring device, and a communication form conversion device. (2) Distributed production characterized by including a host control device and at least one of an input / output control device, a measuring device, and a communication form conversion device coupled to the host control device by serial communication. Equipment control system. (3) A distributed production equipment control system, wherein a host controller and a plurality of types of functional modules having different functions are connected by serial communication. (4) The distributed production equipment control system according to any one of (1) to (3), further including a communication mode conversion device for converting a communication mode of the serial communication as one of the function modules. (5) The distributed production equipment control system according to (4), wherein the communication mode converted by the communication mode converter is a communication protocol. (6) The distributed production equipment control system according to (4), wherein the communication mode converted by the communication mode conversion device is a communication speed. (7) In a distributed production equipment control system in which a host control device and a plurality of types of functional modules that perform predetermined operations based on commands from the host control device are connected by serial communication, measurement is performed by the host control device. A distributed production equipment control system, characterized in that a measurement control device for converting data output from equipment into digital data is connected, and a measuring instrument is connected via the measurement control device. (8) In a distributed production equipment control system in which a host control device and a plurality of types of functional modules performing predetermined operations based on commands from the host control device are connected by serial communication, the host control device includes One type of function module is connected to a communication mode conversion device for converting a communication mode of serial communication, and the host control device, the first type of function module, and the communication mode conversion device are connected to each other by a first mode.
And a second type of function module is connected to the communication form conversion device, and communication between the communication form conversion apparatus and the second type of function module is performed in a second communication form. Characteristic distributed production equipment control system. (9) The distributed production equipment control system according to (8), wherein the communication speed of the first communication mode is higher than the communication speed of the second communication mode. (10) The distributed production equipment control system according to (8), wherein the second type of functional module has an address setting means for setting an address for the communication form converter to identify each functional module. (11) The distributed production equipment control system according to (8), wherein the communication mode conversion device includes communication protocol conversion means for converting a communication protocol between the first communication mode and the second communication mode. (12) The functional module has the above-mentioned (1) to
(3) The distributed production equipment control system according to (7) to (8).

[0127]

According to the present invention, thorough wiring saving between the host control device and the plurality of functional modules can be realized with a relatively simple mechanism.

Further, it is possible to provide a distributed production equipment control system in which the configuration of the functional modules is minimized and simplified, and the system design can be easily changed.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a distributed production equipment control system according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a visual inspection device 60 that is a production facility according to the first embodiment.

FIG. 3 is a functional block diagram of the distributed production equipment control system according to the first embodiment.

FIG. 4 is a functional block diagram showing a distributed production equipment control system according to the first embodiment in detail.

FIG. 5 is a functional block diagram illustrating a distributed production equipment control system according to a second embodiment in detail.

FIG. 6 is a part of a functional block diagram showing in detail a distributed production equipment control system according to a third embodiment.

FIG. 7 is a part of a functional block diagram showing in detail a distributed production equipment control system according to a third embodiment.

FIG. 8 is a part of a functional block diagram showing in detail a distributed production equipment control system according to a fourth embodiment.

FIG. 9 is a part of a functional block diagram showing in detail a distributed production equipment control system according to a fourth embodiment.

FIG. 10 is a diagram showing a conventional distributed production equipment control system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Host control device 2a, 2b, 2c, 2d Communication controller 5, 5a, 5b Actuator control device 11, 41, 41a, 41b Input / output control device 15 Measurement control device 18, 18a, 40 Communication form conversion device 21, 21a, 21b , 21c, 21d, 21e Serial communication bus 54, 55 Communication relay device

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04L 12/28 G05B 19/18 Q 5K034 29/06 H04L 11/00 310Z 9A001 13/00 305B F term (reference) ) 5H215 AA06 BB01 BB05 CC09 CX05 CX08 GG02 GG03 KK01 KK04 5H219 AA07 AA37 CC02 FF01 FF07 5H220 AA04 BB01 BB07 CC09 CX05 EE09 EE10 FF10 HH08 JJ12 5H269 BB01 CC03 DB03 A0315 LL01 NN04 9A001 BB04 CC06 JJ49

Claims (11)

[Claims] 1. A controlled part of a production facility, comprising a host controller and a functional module connected by serial communication for performing a predetermined operation based on a command from the host controller. A distributed production facility control system for controlling a unit, comprising: one or more communication mode conversion devices for converting a communication mode of serial communication, which is one of the functional modules. Mold production equipment control system. 2. A controlled part of a production facility, comprising a host controller and a function module connected by serial communication for performing a predetermined operation based on a command from the host controller. In the distributed production equipment control system for controlling the unit, a first functional module including one or two or more communication form conversion devices that communicate with the host control device in a first communication form via a first serial communication bus And a second functional module connected to the communication mode converter and communicating in a second communication mode via a second serial communication bus. . 3. A controlled part of a production facility, comprising a host controller and a functional module connected by serial communication for performing a predetermined operation based on a command from the host controller. In the distributed production equipment control system for controlling the units, a first functional module including one or two or more communication form conversion devices that communicate with each other in a first communication form via a first serial communication bus, A distributed production equipment control system, comprising: a second function module connected to the communication mode conversion device and communicating in a second communication mode via a second serial communication bus. 4. The distributed production equipment control system according to claim 1, wherein the communication mode conversion device converts at least one of a communication protocol, a communication speed, and a communication interface. 5. The communication mode conversion device according to claim 1, further comprising one or more communication controllers including a serial bus interface and a serial communication unit, a CPU, and a communication conversion unit. A distributed production equipment control system according to any one of claims 1 to 3. 6. A function module other than the communication mode conversion device among the first function modules is an actuator control device, the second function module is an input / output control device, and the first communication mode. 4. The distributed production equipment control system according to claim 2, wherein the communication speed is higher than the communication speed of the second communication mode. 7. A controlled part of the production facility, which is a part of the production facility, comprising a host controller and a functional module connected by serial communication for performing a predetermined operation based on a command from the host controller. A distributed production facility control system for controlling a unit, comprising a communication form conversion device connected to the host control device and capable of connecting to one or more devices having a general-purpose communication function as the controlled unit. A distributed production equipment control system characterized by the following. 8. The distributed production equipment control system according to claim 7, wherein said communication mode conversion device converts at least one of a communication protocol, a communication speed, and a communication interface. 9. A controlled part of the production facility, which is a part of the production facility and includes a host controller and a functional module connected by serial communication for performing a predetermined operation based on a command from the host controller. In the distributed production equipment control system for controlling the unit, a communication relay device connected to the host control device and maintaining a communication form of serial communication, and a functional module connected to the host control device via the communication relay device A distributed production equipment control system, comprising: 10. A controlled part of a production facility, comprising a host controller and a functional module connected by serial communication that performs a predetermined operation based on a command from the host controller. A distributed production equipment control system for controlling a unit, comprising a communication mode conversion device and a first communication relay device connected to the host control device and communicating in a first communication mode via a first serial communication bus. A first functional module, comprising a second functional module including a second communication relay device connected to the communication mode conversion device and communicating in a second communication mode via a second serial communication bus A distributed production equipment control system. 11. The distributed production equipment control system according to claim 9, wherein the communication relay device includes two or more communication controllers each including a serial communication bus interface and a serial communication unit. .