JP2002271100A - Electronic component mounting system and data communication method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data communication method for an electronic component mounting system and electronic component mounting system capable of simplifying a communication processing event by avoiding a collision between protocols, so that communication speed and reliability of data communication can be improved. SOLUTION: A data communication method for an electronic component mounting system 101 consists of electronic component mounting machines 51 and a host computer 55 for transmitting/receiving data to/from the machines 51 through a network. The data transmitted/received between the machines 51 and the host computer 55 is segmented for each prescribed kind. A plurality of virtual communication paths 111 are formed on a physically single communication line for connecting the machines 51 to the host computer 55 for each kind of data. The segmented data is transmitted/received between each machine 51 and the host computer by using a specified path 111 according to the kind of the data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electronic component mounting system for transmitting and receiving communication data such as mounting data, control data, and production management data between an electronic component mounting machine and a host computer connected via a network. A data communication method and an electronic component mounting system.

[0002]

2. Description of the Related Art An electronic component mounter automatically mounts a plurality of types of electronic components at predetermined positions on a substrate. A plurality of electronic component mounters are connected to a host computer via a communication line. Conventionally, a data communication method performed between a host computer and an electronic component mounter has been performed by a protocol generation function using, for example, RS232C as shown in FIG. In this protocol generation function,
All requests from the host computer are received in chronological order and processed sequentially.

In the host computer, three processes are roughly performed: production management information collection, mounting data creation / management, and setup change / equipment status monitoring. In the electronic component mounting machine, three processes are roughly performed: production management information generation, data creation including data teaching, and setup change / equipment state monitoring. Each process performed by the host computer and the electronic component mounting machine transmits and receives data (mounting data, control data, and production management data) between the host computer and the electronic component mounting machine via a communication line. It is performed by

[0004] Each of the divided data is communicated by a protocol shown in FIG. That is, when transmission is started from the host computer, the program name is sent to the electronic component mounter (C0P), and the electronic component mounter stores the name of the program and prepares to read the next data to be sent. Then, a data request is made to the host computer (A0). The host computer sends the type data of the first block to the electronic component mounter (D0). When the data for one block is sent, the electronic component mounter stores the type data and requests the next type data from the host computer (A0). The host computer sends the type data of the next block (D0). The electronic component mounter stores this type data and requests the next type data again from the host computer (A0). At this time, the host computer sends EO
When the P (communication end) data is transmitted, the electronic component mounter replies (A0) with the confirmation of the reception of the EOP data. At this time, the electronic component mounter does not judge the EOP data. Reply of EOP data reception confirmation (A0)
The host computer that has received the command sends a transmission end command to the electronic component mounter. As a result, the electronic component mounter performs the reception end process, and the data communication between the host computer and the electronic component mounter is terminated.

In the case of the setup change communication, which is a synchronous communication-asynchronous combination communication, first, as shown in FIG. 9, the setup change data, which is the production preparation start data, is sent from the host computer to the electronic component mounting machine at an arbitrary timing. Is sent. In response, the electronic component mounter issues a start signal or adjusts the rail width to perform a setup change operation. When this is completed, the electronic component mounter sends an operation completion signal to the host computer. Then, upon receiving the operation completion data (asynchronous), the host computer sends a production start signal to the electronic component mounter. The electronic component mounter receives the production start signal, starts production, and performs mounting. After the mounting is completed, the electronic component mounter sends a mounting end signal to the host computer, so that the host computer ends the production.

As described above, in the conventional data communication method,
The processing is started only after receiving a signal indicating that the processing of the command has been reliably performed by checking the status of the other party based on the command transmitted by the host computer itself or the electronic component mounting machine itself.

[0007]

As described above, in the conventional data communication method, transmission and reception of production management data and mounting data are performed after the operation of the electronic component mounting machine is completed. That is, the next instruction is output from the host computer only after the electronic component mounter has output the completion signal. The communication between the production management data and the mounting data is performed separately from the setup change. For this reason, between the host computer and the electronic component mounting machine, the production management data and the mounting data and the control data (data transmitted and received at the time of setup change) are simultaneously activated,
In protocol processing, collisions may occur. As an example of an actual collision, there is a case where the electronic component mounting machine is undergoing a setup change when the production information is regularly taken in from the electronic component mounting machine. Further, there is a case where an error occurs in the electronic component mounter during data transfer from the host computer. In this case, as shown in FIG. 10, when an error occurs in the electronic component mounter, the electronic component mounter sends error occurrence data (R2E03) to the host computer and waits for reception of error processing (A2). At this time, the host computer gives priority to the R command and other data (C1M0
00) is returned in A2, a protocol error occurs in the electronic component mounter, and the error detection data (A4E01)
Is sent to the host computer. Then, the host computer ends the communication in A2, and the processing shifts to retry of data transfer (C1M000). As described above, if the communication protocol is temporarily terminated and the retry processing is performed, a recovery processing time occurs and a problem that the communication time becomes longer occurs. In such a case, during the production of a board with a small number of products, there is a possibility that the production may be completed while the production management data is being extracted. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances. By avoiding a protocol collision, there is no need to consider an interrupt process, and a data communication method and a data communication method for an electronic component mounting system capable of simplifying a communication processing situation. It is an object of the present invention to provide an electronic component mounting system and to speed up data communication and improve reliability.

[0008]

According to a first aspect of the present invention, there is provided a data communication method for an electronic component mounting system according to the present invention. A data communication method for an electronic component mounting system, comprising: a host computer that transmits and receives data to and from said electronic component mounting system. A plurality of virtual communication paths are formed for each type of data on a physically single communication line connecting the component mounter and the host computer, and the divided data is identified according to the type of data. Transmitting and receiving between the electronic component mounter and the host computer by using the virtual communication path.

In the data communication method of the electronic component mounting system, data transmitted and received between the electronic component mounting machine and the host computer is divided into predetermined types, and the electronic component mounting machine and the host computer are connected. A plurality of virtual communication paths are formed in one communication line. And
By transmitting and receiving the divided data through the virtual communication path corresponding to the data type, the collision of the communication protocol that occurs when processing the asynchronous data is avoided. This eliminates the need to consider interrupt processing, simplifies communication processing, and enables high-speed and highly reliable mounted data communication processing.

According to a second aspect of the present invention, in the data communication method of the electronic component mounting system, the plurality of virtual communication paths are formed in the communication path by giving a communication path specifying address to the divided data. And

In this data communication method of the electronic component mounting system, a unique communication path specifying address for specifying a communication path is assigned to each of the divided data.
In the case of packet communication, a common communication path specifying address in a division group is assigned to each packet of a specific length in the divided data. Thereby, one physical communication line acts as a plurality of communication paths. That is, a plurality of virtual communication paths are formed on one communication line.

According to a third aspect of the present invention, in the data communication method of the electronic component mounting system, the types of the data are mounting data, control data, and production management data, and the plurality of virtual communication paths include a mounting data communication path, It is a control data communication path and a production management data communication path.

In the data communication method of the electronic component mounting system, the types of data are mounting data, control data, and production management data specific to the electronic component mounting machine, and the virtual communication path corresponds to each of the specific data. It is formed as a mounting data communication path, a control data communication path, and a production management data communication path. Thereby, a collision between the production management data communication and the control data communication, which frequently occur in the electronic component mounting machine, is avoided. That is, in the electronic component mounting machine, when the production information is to be regularly taken in from the electronic component mounting machine, the electronic component mounting machine is often being changed in setup. In such a case, since the mounting data communication path and the control data communication path are formed exclusively, the data communication processing is performed in parallel and collision is avoided.

According to a fourth aspect of the present invention, in the data communication method of the electronic component mounting system, the data type includes error analysis data, and the plurality of virtual communication paths include an error analysis data communication path. And

According to the data communication method of the electronic component mounting system, the error analysis data is processed by a dedicated error analysis data communication path, and the error analysis processing can be performed at high speed without interference from other data communication. Become.

According to a fifth aspect of the present invention, in the data communication method of the electronic component mounting system, the data type includes tracking data, and the plurality of communication paths include a tracking data communication path.

In the data communication method of the electronic component mounting system, the tracking data from the electronic component mounting machine is
Dedicated tracking data communication path can be taken into the host computer, for example, the history of which mounting head mounted the electronic component will be stored one by one, and product manufacturing information will be interfered by other data communication Tracking can be obtained at high speed.

An electronic component mounting system according to claim 6 is
An electronic component mounting system including an electronic component mounting machine and a host computer that transmits and receives data to and from the electronic component mounting machine via a network, wherein the electronic component mounting machine and the host computer are configured to configure the network. Divides data transmitted and received between a physically single communication line and the host computer provided in the electronic component mounter into a predetermined type, and a plurality of virtual communications for each of the divided data. A mounter-side controller for storing a protocol for forming a path in the communication line and transmitting and receiving the divided data to and from the host computer via the virtual communication path corresponding to the type of the data; and a controller provided in the host computer. The data transmitted to and received from the electronic component mounter is divided into predetermined types, and the divided data is A host that stores a protocol for forming a plurality of virtual communication paths on the communication line for each data and transmits and receives the divided data to and from the electronic component mounter via the virtual communication path corresponding to the type of the data. And a controller.

In this electronic component mounting system, the electronic component mounting machine and the host computer are provided with a mounting machine controller and a host controller. As a result, data to be transmitted and received is divided, a plurality of virtual communication paths are formed in the communication line for each of the divided data, and the divided data is transmitted and received by the corresponding virtual communication path. Therefore, different types of data generated asynchronously are transmitted / received through dedicated virtual communication paths, respectively, and collision of communication protocols caused by transmitting / receiving different kinds of data through the same communication path is prevented.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a data communication method for an electronic component mounting system and an electronic component mounting system according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram of an electronic component mounting system according to the present invention,
2 is a configuration diagram showing an example of a network in the electronic component mounting system of FIG. 1, FIG. 3 is a detailed view of a main part of a network connection unit of FIG. 2, FIG. 4 is a schematic configuration diagram of an electronic component mounting machine, and FIG.
Is an enlarged perspective view of the transfer head, and FIG. 6 is a schematic plan view of the electronic component mounting apparatus.

As shown in FIG. 2, a plurality of electronic component mounters 51 (51a, 51b, 51c, 51d, 51e, 51
f) is connected to the host computer 55 via the network 53. Each electronic component mounting machine 51
a, 51b, 51c, 51d, 51e, and 51f are arranged so that different types of electronic component groups are mounted on the board. The network 53 is configured by a LAN. That is, the electronic component mounter 51 and the host computer 55 are connected by the network 53 so that data transmission and reception can be performed mutually.
In the illustrated example, a case of a bus type LAN is shown as an example, but the LAN connection method may be a star type or a ring type. This network 53 is physically connected by one communication line 54.

Here, the basic structure of the electronic component mounter 51 will be described. The electronic component mounter 51 selectively switches a development method, which is an improvement of the conventional step repeat method or pattern repeat method, to an electronic circuit board 57 composed of a plurality of subdivided circuits such as a multi-panel board and a heterogeneous mixed board. In addition, when mounting is performed only on a specific subdivided circuit on the electronic circuit board 57, mounting efficiency is increased and mounting can be shortened.

As shown in FIG. 4, a guide rail 61 of an electronic circuit board 57 is provided at the center of the upper surface of a base 59 of the electronic component mounter 51. The electronic component is transported from the loader 63 on the side to the mounting position 65 of the electronic component and from the mounting position 65 to the unloader 67 on the other end. Electronic circuit board 57
Y-axis portions 69 and 71 are provided on both sides of the upper surface of the upper base 59, respectively. An X-axis portion 73 is suspended between the two Y-axis portions 69 and 71. Further, a transfer head 75 is attached to the X-axis portion 73, thereby enabling the transfer head 75 to move within the XY plane.

A transfer head 75 mounted on an XY robot composed of the X-axis portion 73 and the Y-axis portions 69 and 71 and freely moving on an XY plane (horizontal plane) includes, for example, a resistor chip and a chip capacitor. A desired electronic component is sucked by a suction nozzle 81 from a parts feeder 77 to which electronic components are supplied, or a parts tray 79 to which relatively large electronic components such as ICs and connectors such as SOP and QFP are supplied.
The electronic circuit board 57 is configured to be mounted at a predetermined position. The mounting operation of such electronic components is controlled by a control device (not shown) based on a preset mounting program.

The parts feeder 77 includes a guide rail 61
A large number of tape-like component rolls containing electronic components such as resistance chips and chip capacitors are attached to each of the parts feeders. The parts tray 79 can hold a total of two trays 79a whose direction perpendicular to the guide rail 61 is long. Each tray 79a slides toward the guide rail 61 in accordance with the number of parts supplied. The component taking-out position in the Y direction is kept at a constant position. Electronic components such as QFPs are placed on the tray 79a.

On the side of the electronic circuit board 57 positioned on the guide rail 61, a two-dimensional displacement (suction posture) of the electronic component sucked by the suction nozzle 81 is detected.
A recognizing device 83 is provided for performing correction on the transfer head 75 side so as to cancel this displacement.

As shown in FIG. 5, the transfer head 75 includes a plurality (four in this embodiment) of mounting heads (a first mounting head 85a, a second mounting head 85b, and a third mounting head 8).
5c, the fourth mounting head 85d: component holding means) are connected side by side to form a multi-operation head. The four mounting heads 85a, 85b, 85c, and 85d have the same structure, and include a suction nozzle 85, an actuator 87 for causing the suction nozzle to perform a vertical operation, and a suction nozzle 85.
A motor 89, a timing belt 91, and a pulley 93 for causing the motor to perform eight rotations are provided.

The suction nozzle 85 of each mounting head is replaceable, and the other suction nozzles are mounted on the base 5 of the electronic component mounting machine 51.
9 is stored in the nozzle stocker 95 in advance. The suction nozzle 85 has, for example, an S size nozzle for sucking a micro chip component of about 1.0 × 0.5 mm, and a Q of 18 mm square.
There is an M size nozzle or the like that sucks FP, which is selected and used according to the type of electronic component to be mounted.

The transfer head 75 is provided with a read means (read / write head) 97 serving as a reading means. The read / write head 97 reads and outputs production information from a storage device (not shown) on the electronic circuit board 57. Writing can be performed. Note that, in the present embodiment, the reading means
Although reading and writing are enabled, at least only reading may be performed. The transfer head 75 is provided with a pattern reader 99, and the pattern reader 99 can read information from a pattern expressing production information by a two-dimensional barcode or the like. In the present embodiment, the pattern reading device 99 can be omitted. That is, the present embodiment is intended to read the production information from the storage device by the read / write head 97.

Next, a method for producing an electronic circuit board using the electronic circuit board 57 and the electronic component mounter 51 having the above-described configurations will be described. First, production information is written in the storage device of the electronic circuit board 57 in advance. The production information written in the storage device is, as described above, production information for each sub-circuit that is mounted on the electronic circuit board 57, and is also executed on the board width, the product type, and the program. For example, information specific to the electronic circuit board 57 may be added.

As shown in FIG. 6, the electronic circuit board 57 carried in from the loader section 63 of the guide rail 61 is carried to a predetermined mounting position 65. The XY robot positions the read / write head 97 (see FIG. 4) on the storage device. Thereafter, the read / write head 97 is lowered,
A board width, a production type name, and a subdivided circuit for mounting on the electronic circuit board 57 recorded in the storage device.
Information specific to the electronic circuit board 57, such as steps executed on the program, is read.

In this manner, a plurality of electronic component mounters 51
Is read out to the host computer 55 via the network 53. The plurality of electronic component mounting machines 51 are connected to a host computer 55 via a network 53 to form an electronic component mounting system 101. As shown in FIG. 3, the electronic component mounter 51 is provided with a mounter-side controller 103, and the mounter-side controller 103 is provided with the electronic component mounter 51.
Is connected to the operation control unit 105 (see FIG. 1). The host computer 55 is provided with a host-side controller 107. As shown in FIG. 3, the mounter-side controller 103 and the host-side controller 107 are connected via a line concentrator (HUB) 109 for configuring a LAN.

The mounter-side controller 103 divides data transmitted to and received from the host computer 55 into predetermined types. Further, a protocol for forming a plurality of virtual communication paths 111 on the communication line 54 for each divided data is stored. Further, it has a function of transmitting and receiving the divided data to and from the host computer 55 via the virtual communication path 111 corresponding to the type of the data.

On the other hand, the host-side controller 107 divides data transmitted to and received from the electronic component mounter 51 into predetermined types. Further, a protocol for forming a plurality of virtual communication paths 111 on the communication line 54 for each divided data is stored. Further, it has a function of transmitting and receiving the divided data to and from the electronic component mounter 51 via the virtual communication path 111 corresponding to the type of the data.

In this embodiment, the mounter-side controller 103 and the host-side controller 107 assign a communication path specifying address to the divided data,
A virtual communication path 111 is formed on the communication line 54. In the case of packet communication, a communication path specifying address common to the divided groups is assigned to each packet of a specific length in the divided data. Thereby, one physical communication line 54 acts as a plurality of communication paths. That is, a plurality of virtual communication paths 111 can be formed on one communication line 54.

The types of data to be divided include, for example, mounting data, control data, and production management data. Therefore, the virtual communication path 111 formed in the communication line 54 is composed of the mounting data communication path 111a and the control data communication path 111 corresponding to this data.
b and the production management data communication path 111c.

The mounting data communication path 111a notifies the electronic component mounting machine 51 of a command message for uploading / downloading mounting data from the host computer 55,
At the time of upload, the mounting data specified by the electronic component mounting machine 51 is transferred to the host computer 55. Also,
At the time of downloading, the mounting data is transferred from the host computer 55 to the electronic component mounter 51. Further, when the mounting data is taught and updated in the electronic component mounter 51, data update information for use in master data management on the host computer 55 is notified.

The control data communication path 111b is
Transmission of equipment operation control messages such as start, stop, reset, etc., from the host computer 55 to the electronic component mounting machine 51, and conversely, an operation completion response message to the control command from the electronic component mounting machine 51 to the host computer 55, or an operation error. Send and receive real-time operation status messages of such equipment. Thereby, the host computer 55 can confirm the completion of the control operation and know the equipment state at the time of movement in real time.

The production management data communication path 111c includes production management information such as the number of production boards, the mounting rate, the suction rate, and the moving time of the electronic component mounting machine 51, and the suction mounting rate counted for each component, each cassette, and each nozzle. And a message for periodically transmitting the status of occurrence of various errors and the like from the electronic component mounter 51 to the host computer 55.

Thus, especially the electronic component mounting system 1
In 01, a collision between the production management data communication and the control data communication, in which collision frequently occurs, is avoided. In other words, in the electronic component mounter 51, when the production information is to be regularly taken in from the electronic component mounter 51, the electronic component mounter 51 is often being changed in setup. In such a case, since the mounting data communication path 111a and the control data communication path 111b are formed exclusively, the data communication processing is performed in parallel and collision is avoided.

Further, communication between the electronic component mounting machine 51 and the host computer 55 can be performed without interrupting the communication of the status message of the electronic component mounting machine 51 during the collection of production management information that is normally assumed. In addition, there is an advantage that communication processing can be performed in parallel with processing having a relatively long communication time, such as communication of mounting data and communication of production management data. That is, it is possible to flexibly cope with a request from the host computer 55 which occurs asynchronously with data management, production management information, and setup change.

As described above, according to the data communication method by the electronic component mounting system 101, the data transmitted and received between the electronic component mounter 51 and the host computer 55 is divided into predetermined types, Mounting machine 51
A plurality of virtual communication paths 111a, 111b, 11b are connected to one communication line 54 connecting the host and the host computer 55.
1c is formed. Then, the divided data corresponds to the virtual communication paths 111a, 111b,
The transmission and reception by the communication 111c avoids a collision of communication protocols that occurred when processing asynchronous data. That is, since the communication paths having a high probability of being used at the same time are divided, the probability of collision is greatly reduced. This eliminates the need to consider interrupt processing, simplifies communication processing, and enables high-speed and highly reliable mounted data communication processing.

Further, since the communication line 54 can be divided for each purpose, it is possible to communicate trace data (such as which lots of components and which nozzles and cassettes are mounted in each lot) for each board, which is expected to expand in future communications. , It is possible to provide a high-speed and highly reliable communication means free from protocol collision.

In the data communication method of the electronic component mounting system according to the present invention, the type of data to be divided includes error analysis data in addition to the above, and the virtual communication path includes the error analysis data communication path. It may be. The error analysis data refers to information such as an error code, status information when an error occurs, and an operation log. According to this method, the error analysis data is processed by the dedicated error analysis data communication path, the error analysis data is processed by the dedicated error analysis data communication path, and the error analysis processing is interfered by other data communication. Without the need for high-speed operation.

Further, in the data communication method of the electronic component mounting system according to the present invention, in addition to the above, tracking data (data in which which component is mounted by which head) is recorded as the type of data to be divided. The virtual communication path may include the tracking data communication path. According to this method, the tracking data from the electronic component mounting machine 51 can be taken into the host computer 55 through the dedicated tracking data communication path. For example, a history of which mounting head mounted the electronic component can be stored one by one. In addition, the product manufacturing information can be tracked and acquired at high speed without interference from other data communication.

[0046]

As described above in detail, according to the data communication method of the electronic component mounting system according to the present invention, data transmitted / received between the electronic component mounting machine and the host computer is divided into predetermined types. A plurality of virtual communication paths are formed on one communication line connecting the electronic component mounting machine and the host computer by dividing the data, and the divided data is mounted on the electronic component using the virtual communication path corresponding to the data type. Since transmission and reception are performed between the device and the host computer, it is possible to avoid collision of communication protocols that occurred when processing asynchronous data. As a result, there is no need to consider interrupt processing, and communication processing can be simplified.
High-speed and highly reliable mounted data communication processing can be realized.

According to the electronic component mounting system of the present invention, data to be transmitted and received is divided, a plurality of virtual communication paths are formed in the communication line for each of the divided data, and the divided data is assigned to the corresponding virtual communication path. With the mounter-side controller and the host-side controller that transmit and receive different types of data, different types of data generated asynchronously can be transmitted and received via dedicated virtual communication paths, and different types of data can be transmitted and received on the same communication path. This can prevent the collision of the communication protocols caused by the above. As a result, high-speed and highly-reliable communication processing can be performed without a communication protocol wait or retry processing caused by the collision.

[Brief description of the drawings]

FIG. 1 is a block diagram of an electronic component mounting system according to the present invention.

FIG. 2 is a configuration diagram illustrating an example of a network in the electronic component mounting system of FIG. 1;

FIG. 3 is a detailed view of a main part of a network connection unit in FIG. 2;

FIG. 4 is a schematic configuration diagram of an electronic component mounting machine.

FIG. 5 is an enlarged perspective view of a transfer head.

FIG. 6 is a schematic plan view of the electronic component mounting apparatus.

FIG. 7 is a block diagram of a conventional electronic component mounting system.

FIG. 8 is a data flow diagram in a conventional data communication method.

FIG. 9 is a data flow diagram of setup communication in a conventional data communication method.

FIG. 10 is a data flow diagram of a communication retry process in a conventional data communication method.

[Explanation of symbols]

 Reference Signs List 51 electronic component mounting machine 53 network 54 communication line 55 host computer 101 electronic component mounting system 111 virtual communication path 111a mounting data communication path 111b control data communication path 111c production management data communication path 103 mounting machine side controller 107 host side controller

Continued on the front page F term (reference) 5E313 AA01 AA11 DD02 EE02 FG01 FG10 5K030 HA08 HB12 HB14 HB16 HB18 5K034 CC06 EE11 HH63

Claims (6)

[Claims] 1. A data communication method for an electronic component mounting system, comprising: an electronic component mounting machine; and a host computer for transmitting and receiving data to and from the electronic component mounting machine via a network, wherein the electronic component mounting machine and the host Data transmitted to and received from a computer is divided for each predetermined type, and a plurality of virtual lines are divided for each type of data on a physically single communication line connecting the electronic component mounter and the host computer. An electronic component that forms a communication path and transmits and receives the divided data between the electronic component mounter and the host computer using the specific virtual communication path corresponding to the type of the data. Data communication method of the mounting system. 2. The data of the electronic component mounting system according to claim 1, wherein the plurality of virtual communication paths are formed in the communication path by giving a communication path specifying address to the divided data. Communication method. 3. The data type is mounting data, control data, and production management data, and the plurality of virtual communication paths are a mounting data communication path, a control data communication path, and a production management data communication path. 2. The data communication method for an electronic component mounting system according to claim 1, wherein: 4. The data of the electronic component mounting system according to claim 3, wherein the data type includes error analysis data, and the plurality of virtual communication paths include an error analysis data communication path. Communication method. 5. The data communication method according to claim 3, wherein the data type includes tracking data, and the plurality of communication paths include a tracking data communication path. 6. An electronic component mounting system comprising: an electronic component mounting machine; and a host computer for transmitting and receiving data to and from the electronic component mounting machine via a network, wherein the electronic component mounting machine is configured to configure the network. And a physical communication line that couples the host computer with the host computer, and divides data transmitted and received between the host computer provided in the electronic component mounter into predetermined types, and A mounting machine-side controller that stores a protocol for forming a plurality of virtual communication paths in the communication line, and transmits and receives the divided data to and from the host computer via the virtual communication path corresponding to the type of the data, Dividing data provided in the host computer and transmitted / received with the electronic component mounter into predetermined types, Storing a protocol for forming a plurality of virtual communication paths on the communication line for each of the divided data, and storing the divided data with the electronic component mounter via the virtual communication path corresponding to the type of the data. An electronic component mounting system, comprising: a host controller for transmitting and receiving data.