JP6512377B1 - Station setting device for network device - Google Patents

Abstract

The device unique information set in advance in the network device, the connection relationship information indicating the connection position between devices, the station number, the current device unique information collected from the network device, and the connection relationship information are collated, and the network device matched automatically The station number is set to. According to the present invention, since the connection relationship information is used to specify the network device when setting the station number of the network device, the matching of the connection relationship between the network devices can be confirmed by the connection relationship information. It is possible to set the station number consistent with the connection between devices.

Description

  The present invention relates to a station number setting device for setting a station number of a device connected to a network.

For example, in a network system composed of a plurality of devices connected via a network, such as an FA system consisting of a master device and a slave device, when transmitting and receiving information between devices, the transmission source device first transmits A frame containing information to be stored is constructed and sent out to the network, and a device receiving the information receives the frame flowing through the network. When a plurality of slave devices are connected to one master device via a network as in the FA system and it is required to transmit and receive information in a short update cycle, information can be efficiently exchanged by exchanging one frame. , One frame sent from the master device may include data for a plurality of slave devices. As described above, when data addressed to a plurality of devices is included in one frame, the storage order of data in the frame is associated with the number assigned to each device (hereinafter referred to as a station number), and each slave device It is possible to take in information addressed to the own station by selecting data stored at a location corresponding to the station number assigned to the own station from the frame.
At this time, it is necessary to set a station number before starting communication in each device, and this station number setting can be performed manually, but when configuring a system by connecting a large number of devices via a network, When replacing the connected device, the work of setting the station number becomes complicated, so there is a technique for automatically setting the station number. For example, in Patent Document 1, identification information and station number information of slave devices connected to the master device from the management device are notified in advance, and from the slave devices to which the master device is actually connected via the network The identification information is collected, the identification information notified in advance from the management device is compared with the identification information collected from the slave device through the network, and the corresponding station information is transmitted to the slave device which has been confirmed that the identification information matches. By doing this, there is disclosed a technique of automatically setting the station numbers in each slave device.

JP 2014-119912 A

  In the station number setting method disclosed in Patent Document 1, if the master device matches the identification information collected from the slave device actually connected via the network with the identification information of the slave device notified from the management device Based on the identification information and the corresponding station number information, it is assumed that the slave devices are connected in the order indicated by the station number information, and frames to be transmitted to each slave device are configured. However, for example, if the order of the station number information of slave devices notified from the management device to the master device is different from the connection position of the slave devices actually connected, or if the connection is actually made for reasons such as maintenance etc. When the connection positions of a plurality of slave devices are exchanged, even if the identification information matches, the connection positions do not match, and the order and actuality of the information addressed to each slave device in the frame configured by the master device The connection order of the slave devices is inconsistent, and the slave devices can not acquire appropriate information. In order to prevent this inconsistency, it is necessary to manually correct identification information and station number information held by the master device.

  The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to obtain a station number setting device of a network device capable of setting a station number consistent with the assumed connection relationship between network devices. Do.

In the station number setting device of the network device according to the present invention, a storage unit for storing device specific information of the network device connected to the network, connection relationship information indicating a connection position, and setting information in which the station number is set; Configuration collection unit for collecting configuration information including device-specific information of each current network device and connection relation information in the currently connected network from the network device, and device-specific information and configuration collection stored in the storage unit The device unique information and connection relationship information in the matching unit collate the current device unique information collected in the unit and the connection relationship information stored in the storage unit with the current connection relationship information collected in the configuration collection unit If there is a match, the station number included in the setting information is matched with the network device corresponding to the matched device-specific information. The station number setting device of the network device comprising the station number setting unit for setting the station number corresponding to the device specific information, wherein the connection relation information is the number of the input / output port of the network device and the input / output port corresponding to the number It is characterized in that it is composed of device specific information of another network device to be connected .

  According to the present invention, since the connection relationship information is used to specify the network device when setting the station number of the network device, the matching of the connection relationship between the network devices can be confirmed by the connection relationship information. It is possible to set the station number consistent with the connection between devices.

It is a block diagram of FA system which applies the present invention. It is a block diagram of the master device in Embodiment 1 of this invention. It is a block diagram of the slave apparatus in Embodiment 1 of this invention. It is a sequence diagram which shows the operation | movement which sets the station number of a slave by the station number setting apparatus of Embodiment 1 of this invention. FIG. 5 (a) is a network block diagram showing the network connection of the FA system shown in FIG. 1 in detail, and FIG. 5 (b) is a data block diagram showing setting information used in the station number setting apparatus of the first embodiment. FIG. 6 (a) is an explanatory view showing each device connected via a network and an example of a configuration collection frame transmitted from each device, and FIG. 6 (b) shows configuration information collected by the master device according to the first embodiment. It is a data block diagram. It is a data block diagram which shows the state where setting information and structure information of Embodiment 1 of this invention are collated. It is a data block diagram which shows the state where setting information and structure information of Embodiment 1 of this invention are collated. It is a sequence diagram which shows the operation | movement which sets the station number of a slave by the station number setting apparatus of Embodiment 2 of this invention. FIG. 1 is a block diagram of a FA system having a star network configuration to which the present invention is applied. It is a block diagram of FA system which comprised the network configuration which made the star type wiring and line type wiring which applied this invention mixed. It is a data block diagram showing composition information which a slave device in the case of FA system which carried out star type network composition transmits to a master device. It is a data block diagram which shows the setting information which the management apparatus in the case of the FA system which comprised the star type network structure transmits with respect to a master apparatus. FIG. 6 is a data configuration diagram showing configuration information collected by a master device in the case of a FA system having a star network configuration.

Embodiment 1
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the first embodiment, an FA system including a master device and a slave device is taken as an example of a system to which the station number setting device of the network device of the present invention is applied, that is, a network system including a plurality of devices connected by a network. In this FA system, one will be described which automatically sets, in each slave device, a station number that is consistent with the connection relationship between each slave device.

In the first embodiment, the master device is provided with the station number setting device of the network device of the present invention, and the management device sets in advance the configuration information of the FA system consisting of the master device and the slave device. Send information to the master device. The station number setting device provided in the master device that has received this configuration information collects the respective configuration information from the slave devices that are network devices, collates the configuration information preset by the management device, and is consistent By transmitting the station numbers to the slave devices, the station numbers are automatically set in the procedure of setting the station numbers in each slave device.
Details will be described below.

FIG. 1 is a block diagram of an FA system to which the present invention is applied. This FA system is a system in which a master device and a slave device are connected by an industrial network (hereinafter referred to as FA network), and has a line type network configuration in which each device is connected in a daisy chain. Data transfer in this FA network is performed in a bucket brigade manner.
1 is a master device for controlling slave devices connected by a FA network installed in a factory or the like, 2A to 2D are slave devices for transmitting and receiving control information to and from the master device 1 via the FA network, 3 is a master device 1, And, it is a management device that performs parameter setting of the slave devices 2A to 2D, displays error information of the FA system, downloads a sequencer program operated in the FA system, etc., and is configured of a personal computer or the like.
In the management device 3, setting information of each device connected to the FA network is preset by the user. The setting information is device-specific information on the master device and the slave device connected to the FA network and connection relationship information indicating what connection relationship each device has, that is, position information indicating a connection position. Hereinafter, description will be made as using position information as connection relation information. This setting information is visually displayed in the management device 3 by a graphical user interface (GUI), and the management device 3 is provided with means for prompting the setting of the station number of each connected device using the GUI. Sets the setting information including the device specific information of each device connected to the FA network, the position information, and the information of the station number of each device linked to them using this means. The setting information set by the management device 3 is transmitted to the master device 1.
4 is a master device 1, slave devices 2A to 2D, a management device such as an edge device for interconnecting the FA network connecting the management device 3 and the external network 5, 6 is connected to the external network 5, master The device 1 is a management device existing on a cloud environment for remotely managing the states of the slave devices 2A to 2D. The management apparatus 4 and the management apparatus 6 may be implemented with the same functions as the management apparatus 3, that is, the functions such as the parameter setting, the display of information, and the download of the sequencer program described above.

FIG. 2 is a block diagram of the master device 1 of the first embodiment. In FIG. 2, the input / output port 10 inputs data from the network or outputs data to the network. The selection unit 20 selects the input / output port 10 to be used by the input / output port selection unit 201, and the port information addition unit 202 adds information indicating which port the data is to be output as a result of selection by the input / output port selection unit 201. Equipped with The communication unit 30 includes a data reception unit 301 that receives data input from the input / output port selected by the input / output port selection unit 201, and a data transmission unit 302 that transmits data from the selected input / output port. The internal bus 40 interconnects the functional blocks that make up the master device 1.
The arithmetic processing unit 70 performs various operations. The general-purpose storage unit 80 stores data to be held in the various operations.
When the FA system is operated, data transmission / reception is performed via the FA network using the input / output port 10, the selection unit 20, and the communication unit 30, and at the same time, the arithmetic processing unit 70 and the general-purpose storage unit 80 A program etc. operate.

Before the FA system is operated, it is necessary to set a station number in each device before starting communication, and the station number setting device 90 performs this station number setting. The station number setting device 90 includes a configuration collection unit 50 and a station number reference unit 60.
Configuration collection unit 50 includes device specific information of slave devices 2A to 2D and position information in the network from slave devices 2A to 2D via input / output port 10, selection unit 20, and communication unit 30 via the network. It collects information. The configuration collection unit 50 includes a configuration collection frame generation unit 501A, a configuration data generation unit 502A, and a storage unit 503A. The storage unit 503A stores configuration information of each slave device 2A to 2D collected by the configuration collection unit 50.
The station number reference unit 60 includes a check unit 601A, a station number setting unit 602A, an error notification unit 603A, and a storage unit 604A. In the storage unit 604A, setting information set in advance in the management device 3 and transmitted to the master device 1, that is, device-specific information and position information of each device connected to the FA network, and the station number of each device linked with them The setting information including the information of is stored. The collating unit 601A collates the device unique information and the position information stored in the storage unit 604A with the device unique information and the position information collected by the configuration collecting unit 50 and stored in the storage unit 503A. The station number setting unit 602A performs the station number setting by reading from the storage unit 604A the station number corresponding to the slave device whose device-specific information and position information match in the collation unit 601A and notifying the corresponding slave device.

Each part will be described in more detail below.
In the selection unit 20, the input / output port selection unit 201 performs selection processing of which input / output port 10 the transmission data is to be output to the network from the transmission data input from the data transmission unit 302 of the communication unit 30. At this time, the port information adding unit 202 adds information as to which port the data is to be output to the transmission data.
The reception data input from the input / output port 10 is output from the selection unit 20 to the data reception unit 301 of the communication unit 30. At this time, the port information adding unit 202 adds information as to which input / output port 10 the data is received from to the received data.

  The communication unit 30 generates and analyzes frame data used in FA network communication. The data receiving unit 301 analyzes header information etc. of the received data input from the selecting unit 20. After analysis, the received data is processed into application data, and output is performed via the internal bus 40 to the functional block where the next processing is executed. The data transmission unit 302 adds header information and the like to application data input via the internal bus 40 to generate frame data. The generated frame data is output to the selection unit 20.

In the configuration collection unit 50, a configuration collection frame generation unit 501A generates a configuration collection frame used when the master device 1 performs configuration collection of the slave devices 2A to 2D present on the network, and passes through the internal bus 40, It is output to the data transmission unit 302 of the communication unit 30.
The configuration collection result received from the slave devices 2A to 2D is received via the data receiving unit 301 of the communication unit 30, and the configuration data generation unit 502A generates network configuration information from the configuration collection result. The generated network configuration information is temporarily stored in the storage unit 503A.

  The station number reference unit 60 temporarily stores, in the storage unit 604A, setting information including "device unique information" and "position information" of the slave devices 2A to 2D that constitute the network received from the management device 3 and the corresponding "station number". Do. The setting information and the network configuration information generated by the configuration data generation unit 502A of the configuration collection unit 50 are collated by the collation unit 601A. If the collation result is correct, the setting information of the corresponding slave device is generated by the station number setting unit 602A and transmitted to the communication unit 30 via the internal bus 40. When transmitting, it transmits to the corresponding slave device by unicast communication based on the device specific information. Also, the setting information and the network configuration information are collated, and if the network configuration information does not match all the setting information, an error notification frame 603A is generated by the error notification unit 603A, and communication is performed via the internal bus 40. Output to the unit 30. The generated error notification frame is transmitted to the management device 3 by unicast communication.

  Next, the configurations of the slave devices 2A to 2D will be described. FIG. 3 is a configuration diagram showing a configuration of slave devices 2A to 2D in the first embodiment. The slave devices 2A to 2D each include an input / output port 10, a selection unit 20, a communication unit 30, an internal bus 40, a configuration collection unit 50, a station number reference unit 60, an arithmetic processing unit 70, and a general storage unit 80. The selection unit 20 includes an input / output port selection unit 201 and a port information assignment unit 202. The communication unit 30 includes a data reception unit 301 and a data transmission unit 302. The configuration collection unit 50 includes a configuration collection frame update unit 501B. A collection frame transfer setting unit 502B and a configuration data generation unit 503B are provided, and the station number reference unit 60 is provided with a check unit 601B, a station number setting unit 602B, an error notification unit 603B, and a storage unit 604B.

The input / output port 10, the selection unit 20, the communication unit 30, the arithmetic processing unit 70, and the general-purpose storage unit 80 of the slave devices 2A to 2D in FIG. 3 are the input / output port 10 of the master device 1 shown in FIG. The communication unit 30, the arithmetic processing unit 70, and the general-purpose storage unit 80 have the same configuration.
In the slave devices 2A to 2D having such a configuration, when the FA system is operated, data transmission / reception is performed via the FA network using the input / output port 10, the selection unit 20, and the communication unit 30. Processing is performed in the arithmetic processing unit 70 and the general-purpose storage unit 80 according to control by a sequencer program or the like from the master device 1 and operates as a part of the FA system.

  Before the FA system is operated, it is necessary to set a station number for each slave device, and the station number setting device 90 operates when performing this station number setting. The station number setting device 90 includes a configuration collection unit 50 and a station number reference unit 60. Configuration collecting unit 50 in the first embodiment operates configuration collecting frame generating unit 501A, configuration data generating unit 502A, storage unit 503A of master device 1, and configuration collecting frame updating unit 501B of slave devices 2A to 2D. . When the slave apparatus 2A to 2D updates the configuration collection frame transferred and received from the master apparatus 1 or other slave apparatuses 2A to 2D, the apparatus unique information of the own apparatus, the apparatus unique information of the transmission source apparatus and the transmission source apparatus Information on which input / output port 10 received the frame is added to the configuration collection frame. The updated configuration collection frame is set by the configuration collection frame transfer setting unit 502B for transfer to the master device 1 and other slave devices, and is output to the data transmission unit of the communication unit 30 via the internal bus 40. Ru. In the first embodiment, the station number reference unit 60 and the configuration data generation unit 503B of the slave devices 2A to 2D do not operate. In the slave devices 2A to 2D of the first embodiment, the station number reference unit 60 and the configuration data The configuration without the generation unit 503B may be employed.

Next, in the FA system configured as described above, an operation in which the station number setting device 90 sets a station number will be described. FIG. 4 is a sequence diagram showing an operation of setting the station numbers of the slave devices 2A to 2D by the station number setting device 90 of the present invention. The slave devices 2C and 2D are omitted in FIG.
In the first embodiment of the present invention, the user first sets the network setting information on the screen of the management apparatus 3 in step S1. FIG. 5 (a) is a network configuration diagram showing in more detail the master device 1 and each slave device 2A to 2D when setting the setting information of the FA system shown in FIG. 1, and FIG. It is a data configuration diagram showing an example of setting information in which a proper network configuration is set.
In the format example of the setting information, a model name is used as device-specific information of a network device connected to the network. In addition to this, it is possible to use information unique to the device such as model name information and MAC address as the device unique information.

Further, the position information in the format example of the setting information includes “input / output port 1” and “input / output port 2” included in the master unit 1 and the slave units 2A to 2D, and connection destinations connected to the respective ports. And device-specific information of the device.
The device setting information of the network is configured by associating the device specific information and the position information corresponding to each device with the station numbers for identifying each device on the network. Although the numbers from 1 to 5 are used as the station numbers in the example of FIG. 5, the numbers may not be numbers as long as the numbers are unique to each device in the network.
Next, in step S2, the management device 3 sends the network to the master device 1 the setting information including the “device specific information” and “position information” set in step S1 by the user and the “station number” corresponding to them. Send via. The setting information transmitted to the master device 1 is stored in the storage unit 604A of the master device 1.

  Next, in step S3, the master device 1 generates a configuration collection frame for collecting configuration information including device unique information and position information in the network from the slave devices 2A to 2D by the configuration collection frame generation unit 504A, and inputs and outputs It transmits to the adjacent slave device 2A via the port 10. FIG. 6A shows an example of each device actually connected to the network and a configuration collection frame transmitted from each device. In the configuration collection frame transmitted from the master device 1, “device type information” which is device unique information of the master device 1 itself is stored in “device unique information of own device”, and device unique information of “preceding device” There is nothing stored in the "port connected to the previous device".

  Next, in step S4, the slave device 2A that receives the configuration collection frame from the master device 1 updates the content of the configuration collection frame by the configuration collection frame updating unit 501B. In the slave device 2A, the content of "device-specific information of its own" in the configuration collection frame is updated to "type B", which is device-specific information of the slave device 2A itself, and "device-specific information of the previous device" The contents of the above are updated to "Model A" that is the device unique information of the master device 1 that has sent this configuration collection frame, and the content of "port connected to the previous device" is the model unique information of the own device. Update to “Model B; Port 1” consisting of “Port 1” to which “Model B” and the master device 1 are connected.

Then, the updated configuration collection frame is transferred to the master device 1 and the adjacent slave device 2B (step S5).
The master device 1 having received the configuration collection frame from the slave device 2A holds the configuration collection frame sent from the slave device 2A in the storage unit 503A (step S6).
As described above, the fact that the configuration collection frame is sent to the next connected slave device 2B triggers the slave device 2B to provide the configuration information, and the configuration collection frame is sent to the master device 1 at the same time. 1 is to collect information indicating the positional relationship between the slave device 2A and the peripheral device.
Next, similarly to the operation of the slave device 2A described above, the slave device 2B also updates the contents of the configuration collection frame (step S7), and transfers the updated configuration collection frame to the master device 1 and the adjacent slave device 2C. (Step S8).

Similar operations are performed in the slave devices 2C and 2D. As a result, four configuration collection frames as shown in FIG. 6A are sent to the master device 1 from the slave devices 2A to 2D. However, the slave device 2D is an end slave device without a slave device to be connected next, and in the end slave device 2D, the operation of transmitting the configuration collection frame to the master device 1 but transferring it to another slave device is Not performed.
By the above operation, the master device 1 receives the configuration collection frame updated in each of the slave devices 2A to 2D and holds the frame in the storage unit 503A.
After transmitting the configuration collection frame in step S3, the master device 1 monitors whether the configuration collection frame has been received from the slave device at the end, which has only one connection port information of the updated configuration collection frame. If, in step S10, it is detected that the configuration collection frame has been received from the slave device at the end, the master device 1 collects the configuration collection frames from each slave device 2A to 2D and integrates them, as shown in FIG. Collection configuration information is generated. The generated collection configuration information includes “device unique information” and “position information” of the slave devices 2A to 2D, and the collection configuration information is stored in the storage unit 503A.

Then, in step S11, the master device 1 obtains the configuration information collected from the slave devices 2A to 2D shown in FIG. 6B and stored in the storage unit 503A, and the management device shown in FIG. 5B. The collation unit 601A collates the "device-specific information" and the "position information" of the setting information received from 3 and stored in the storage unit 604A.
FIGS. 7 and 8 are data configuration diagrams showing a state where setting information and configuration information are collated in the first embodiment, and FIG. 7 is received from configuration information stored in storage unit 503A and management apparatus 3. FIG. 8 shows a case where the setting information stored in the storage unit 604A is matched, that is, matched.

As a result of the collation by the collation unit 601A in step S11, for a slave device in which both “device-specific information” and “position information” match, “station number corresponding to“ device-specific information ”and“ position information ”of the slave device Is read from the storage unit 604A by the station number setting unit 602A, and the read station number is set as the station number of the slave device in which "device specific information" and "position information" match (step S12). Then, the set station numbers are transmitted to the corresponding slave devices 2A to 2D (steps S13 and S14).

Note that as shown in FIG. 8, if there is no match for both slave devices 2A to 2D even if the “device unique information” and “position information” are compared with all other slave devices, the master The error notification unit 603A of the device 1 sends an error notification to the management device 3.
In the slave device where the set station number is sent from the master device 1, the station number sent is held as the station number of the own device by being held in the storage unit 604B, and this station number is the other device in the subsequent operation. (Step S15, step S16).

The station number setting is performed by the operation of the station number setting device 90 as described above, and after the station number setting, the arithmetic processing unit 70 of the master device 1 performs processing based on the user's program stored in the general-purpose storage unit 80 of the master device 1. The slave devices are controlled via the input / output port 10 to control the slave devices 2A to 2D.

  According to the first embodiment as described above, since the station number is set after collating the set position information and the collected position information, the connection relationship between the network devices assumed by the user and the actual state It is possible to set the station number which is consistent with the connection relationship between the network devices of the above.

Embodiment 2
In the first embodiment, the station number setting device of the present invention is the one provided in the master device 1, but if the station number setting device of the present invention is connected by FA network and can transmit and receive information, the management device 3. The master station 1, the slave stations 2A to 2D, etc. are connected to the FA network regardless of whether they are provided or independent of each other, and the elements constituting the station number setting system are management devices 3 , And may be distributed to the master device 1 and the slave devices 2A to 2D.
In the first embodiment, the case where each unit constituting the station number setting device operates in the master device 1 is shown, but in the second embodiment, each portion constituting the station number setting device is distributed to the master device 1 and slave devices 2A to 2D. The case where it is provided will be described. The configurations of the master device 1 and the slave devices 2A to 2D according to the second embodiment are the same as those shown in FIGS. 2 and 3 shown in the first embodiment. However, the storage unit of the station number setting apparatus according to the present invention uses the storage unit 604B provided in the slave devices 2A to 2D, and the configuration collection unit includes the configuration collection unit 50 of the master device 1 and the configuration collection unit 50 of the slave device. Used as the collating unit is 601B of the slave devices 2A to 2D, and as the station number setting unit is used 602B of the slave devices 2A to 2D. In the second embodiment, the station number reference unit 60 and the configuration data generation unit 502A of the master device 1 may not operate, and may not be provided.

  In the second embodiment, the setting information including “device unique information” and “location information” of slave devices 2A to 2D that constitute the network received by the master device 1 from the management device 3 is multicast communication And transmitted to all slave devices 2A to 2D. In the station number reference unit 60 of the master device, the processes of the above-mentioned check unit 601A, station number setting unit 602A, and error notification unit 603A are not performed. The processing relating to the collation is executed by the station number reference unit 60 of the slave devices 2A to 2D.

  When the slave devices 2A to 2D receive setting information including “device specific information” and “location information” corresponding thereto from the master device 1 by multicast communication, the updated configuration collection frame is a configuration collection frame The transfer setting unit 502 B performs setting for transferring to an adjacent device, and outputs the setting to the data transmission unit 302 of the communication unit 30 via the internal bus 40. When the updated collection frame is received from the adjacent device, the configuration data generation unit 503B generates network configuration information including “device unique information” and “location information” of the adjacent device. The generated information is temporarily stored in the storage unit 504B.

  The station number reference unit 60 temporarily stores the setting information in the storage unit 604B. The setting information and the network configuration information generated by the configuration data generation unit 503B of the configuration collection unit 50 are collated by the collation unit 601B. If the collation result is correct, the setting information of the own apparatus is generated by the station number setting unit 602B, and stored in the general-purpose storage unit 80 via the internal bus 40. The slave device executes the station number setting of its own device based on the stored information. Also, the setting information and the network configuration information are collated, and if the network configuration information does not match all the setting information, an error notification frame 603B is generated by the error notification unit 603B, and communication is performed via the internal bus 40. Output to the unit 30. The generated error notification frame is transmitted to the management device 3 by unicast communication.

  FIG. 9 is a sequence diagram showing an operation of setting a slave station number by the station number setting device according to the second embodiment. First, the user sets network setting information on the management device 3 (step S17). The management device 3 transmits setting information including “device specific information” and “position information” obtained by the user's setting to the connected master device 1 via the network (step S18). . The master device 1 transmits setting information to all slave devices 2A to 2D existing on the network by multicast communication (step S19). After that, the master device 1 generates a configuration collection frame and transmits it to the adjacent device (step S20). One of the slave devices 2A to 2D that has received the configuration collection frame updates the contents of the frame (steps S21 and S23), and transfers the updated frame to the master device 1 and all slave devices 2A to 2D by multicast communication (steps S22, S24). This process is performed until the processes of all slave devices 2A to 2D existing on the network are completed. The slave device holds the updated configuration collection frame, and when the update process of all the adjacent devices is completed, the collection configuration information is generated in each slave (S25, S26). If the generated configuration information matches the "device-specific information" and "position information" of the setting information received from the master device 1, and if they match, "device-specific information" and "position information" of the own device correspond to them. The station number setting of the own device is performed based on the station number information (steps S29 and S30).

  According to the second embodiment as described above, since the station number is set after comparing the collected location information with the location information set in the same manner as in the first embodiment, the network apparatus assumed by the user It is possible to set a station number in which the connection relationship between the two and the actual connection relationship between the network devices match. Further, in the case of the second embodiment, it is not necessary for the master device 1 to transmit the station number information in unicast to all the slave devices 2A to 2D, and the station number setting in each slave device can be made in each slave device at the same time. The time from the user setting the station number to the end of the station number setting can be shortened.

  In the first and second embodiments, the network configuration in which the master device 1 and the slave devices 2A to 2D are wired in a line configuration has been described as a configuration in which each device is daisy-chained and data transfer is performed in a bucket brigade configuration. The present invention is also applicable to an FA system with a star-type wire network configuration as shown in FIG. 10, or to a network configuration with a combination of star-type and line-type wires as shown in FIG. In FIG. 10, reference numeral 8 denotes a switch device for transferring data flowing on the network to a destination device. Each device is wired through the switch device 8, and data transfer is transferred to each device by the switch device 8. 12 is a data configuration diagram showing configuration information transmitted to the master device 1 by the slave devices 2A to 2D in the case of the FA system of the network configuration of FIG. 10, and FIG. FIG. 14 is a data configuration diagram showing configuration information collected by the master device 1. Even in the FA system of the star type network configuration, the same operation as in the first and second embodiments is performed.

  The above-described station setting device for a network device according to the present invention is useful for an industrial network system, and is particularly suitable for a system that needs to build a large number of slave devices.

1 Master Device 2A to 2F Slave Device 3 Management Device 4 Management Device
5 external network 6 management device 7 connection cable 8 switch device 10 input / output port 20 selection unit 30 communication unit 40 internal bus 50 configuration collection unit 60 station number reference unit 70 operation processing unit 80 general storage unit 90 station number setting device 201 input / output port selection Section 202 Port information appending section 301 Data receiving section 302 Data transmitting section 501A Configuration collection frame generation section 502A Storage section 601A Storage section 601A Verification section 602A Station number setting section 603A Error notification section 604A Storage section 501B Configuration collection frame updating section 502B Configuration Collection frame transfer setting unit 503B Configuration data generation unit 504B Storage unit 601B Verification unit 602B Station number setting unit 603B Error notification unit

604B storage unit

Claims (6)

A storage unit that stores device-specific information of a network device connected to a network, connection relationship information indicating a connection position, and setting information in which a station number is set;
A configuration collection unit that collects, from the network device, configuration information including device unique information of each current network device and connection relationship information in the currently connected network via the network;
The device unique information stored in the storage unit, the current device unique information collected by the configuration collection unit, and the connection relationship information stored in the storage unit with the current connection relationship information collected by the configuration collection unit The matching unit to
When the device unique information and the connection relation information match in the check unit, the network device corresponding to the matched device unique information corresponds to the device unique information matched among the area numbers included in the setting information. The station number setting unit to set the station number,
The station number setting device of the network device comprising
In the network device, the connection relationship information includes a number of an input / output port of the network device and device unique information of another network device connected to the input / output port corresponding to the number. Station number setting device. The collation unit
The device unique information included in the configuration information collected by the configuration collection unit, the device unique information included in the setting information stored in the storage unit, and
Connection relation information configured by the input / output port number included in the configuration information collected by the configuration collection unit, and device unique information of another network device connected to the input / output port corresponding to the number And a connection comprising an input / output port number included in the setting information stored in the storage unit, and device unique information of another network device connected to the input / output port corresponding to the number It is assumed that the device specific information of the network device and the connection relationship information match if both of the relationship information match.
An apparatus for setting a station number of a network device according to claim 1, wherein: The apparatus according to claim 2 , wherein the storage unit stores the setting information notified from a management apparatus via the network. The apparatus further includes an error notification unit that notifies an error to the management device when there is nothing that matches even if both the device unique information and the connection relationship information are compared in the comparison unit.
4. The station number setting device for a network device according to claim 3, wherein: 5. The apparatus according to claim 3 , wherein the network device is a master device or a slave device controlled by the master device. The apparatus according to claim 1, wherein the device specific information is type name information or MAC address of the network device.

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