CN109450698B - Remote operation and maintenance and monitoring method and system for PC automatic production line - Google Patents
Remote operation and maintenance and monitoring method and system for PC automatic production line Download PDFInfo
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- CN109450698B CN109450698B CN201811469304.7A CN201811469304A CN109450698B CN 109450698 B CN109450698 B CN 109450698B CN 201811469304 A CN201811469304 A CN 201811469304A CN 109450698 B CN109450698 B CN 109450698B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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Abstract
The invention belongs to the field of industrial automation, and particularly relates to a remote operation and maintenance and monitoring method and system for a PC automatic production line; the remote operation and maintenance and monitoring method of the PC automatic production line introduces the industrial gateway and the cloud platform into the PC automatic production line, and realizes the remote operation and maintenance function of the PLC controllers of all subsystems of the PC automatic production line; establishing a VPN special channel, and performing remote program updating on each subsystem PLC controller of the PC automatic production line, so that after-sale maintenance personnel do not need to visit the site every time, and the after-sale maintenance time and cost are reduced; the system has the advantages that the remote data acquisition function is realized, the operation states of all subsystems of the PC automatic production line are acquired in real time, the system saves and makes monitoring pictures by means of the cloud platform, the electronic terminal logs in the cloud platform to check the monitoring pictures, the operation state monitoring of field equipment is not limited by regions, and the operation parameters of the field equipment can be changed remotely.
Description
Technical Field
The invention belongs to the field of industrial automation, and particularly relates to a remote operation and maintenance and monitoring method and system for a PC automatic production line.
Background
In recent years, the country actively promotes green buildings and building materials, and the use of PC (prefabricated concrete structure), namely a prefabricated concrete structure, becomes a mark for the development of the national building industry, and the building industrialization is in an unprecedented opportunity. As the first step of industrial development, the PC automatic production line develops rapidly in China and obtains good social reflection.
The PC automatic production line is a complex large-scale production device integrating mechanical, hydraulic, electric, photoelectric, computer and sensing technologies, and after the PC automatic production line is developed and delivered to users, the operation of the production line usually needs maintenance of a special person; in addition, production lines are distributed all over the country, and technical personnel are required to visit the site for system upgrading and after-sale maintenance, which wastes time and labor. At present, the idea of remote monitoring operation and maintenance has been developed to a certain extent in the field of industrial automation, but the application in the PC automatic production line is still blank at present, a remote operation and maintenance system is developed for the PC automatic production lines distributed in different regions, and after-sale engineers can remotely perform program upgrading and running state tracking on sold equipment; and important parameters of each device during operation are remotely monitored, so that remote device parameter modification and fault analysis are facilitated, and centralized management and system improvement are facilitated.
Disclosure of Invention
In order to solve the problems, the invention provides a remote operation, maintenance and monitoring method and a remote operation, maintenance and monitoring system for a PC automatic production line, which solve the problems of the PC automatic production line that after-sales service personnel need to attend to the site for solution, the problems of tracking and recording the running condition of the sold PC automatic production line, modifying the parameters of remote equipment and the like, and realize the remote operation, maintenance and monitoring functions of the PC automatic production line system.
The invention is realized by the following technical scheme:
a remote operation, maintenance and monitoring method for a PC automatic production line comprises the following steps:
s1, connecting the PLC of each subsystem on site to the industrial exchanger to form a local area network;
s2, connecting the local area network with an industrial gateway, and setting the industrial gateway and the PLC of each subsystem in the same network segment;
s3, a first electronic terminal accesses a configuration page of the industrial gateway, and then the first electronic terminal sets PLC remote updating parameters and data acquisition parameters of all subsystems on the configuration page and establishes connection channels and data items of the industrial gateway and PLC controllers of all the subsystems;
the PLC remotely updating parameters comprises: IP addresses of PLC controllers of all subsystems and IP addresses of the industrial gateways;
inputting the IP addresses of the PLC controllers of all subsystems on the industrial gateway by adopting the first electronic terminal, wherein the IP addresses need to be consistent with the actual IP addresses of the corresponding PLC controllers;
establishing a connection channel and data items of an industrial gateway and a PLC (programmable logic controller), respectively establishing a connection channel corresponding to each on-site subsystem PLC controller in an industrial network by setting relevant parameters of an actual communication protocol of the industrial gateway and the on-site PLC controller, assigning different names to each channel, naming each subsystem as a corresponding channel, establishing the data items of each subsystem PLC in the channel, and configuring the content of each data item in detail, such as the name of the data item, the address of the corresponding PLC and the data type;
s4, connecting the industrial gateway configured in the step S3 to the Internet, and remotely updating programs in the PLC controllers of all subsystems through a second electronic terminal;
s5, connecting the industrial gateway to a cloud platform, and remotely monitoring an actual project configuration picture on the cloud platform by using a third electronic terminal;
the configuration picture comprises the operation state of key equipment in each subsystem, the temperature, the humidity, the maintenance time, the maintenance state and the faults in each subsystem, wherein the temperature, the humidity, the maintenance time and the maintenance state are contained in part of the subsystems.
Furthermore, the internet access mode supported by the industrial gateway comprises a 4G network, a wireless network and a wired network; selecting a convenient networking mode of a production site to connect the industrial gateway with the Internet; and carrying out adaptation development on the industrial gateway and each subsystem of the PC automatic production line.
Further, the specific steps of configuring the field device connection switch into the lan in step S1 are as follows:
s1.1, arranging the industrial switch in a control cabinet arranged in the middle to ensure that the distance between the industrial switch and each subsystem controller is shortest;
s1.2, connecting the PLC controllers of all subsystems with the industrial switch by adopting a network cable;
s1.3, setting the IP addresses of the PLC of each subsystem as the same network segment, and distributing different IP addresses to the PLC controllers of each subsystem.
Furthermore, the PLC controllers of the subsystems are arranged in the control cabinet.
Further, the industrial gateway in step S3 includes PLC remote update and data collection functions.
Further, in step S4, a VPN dedicated channel between the second electronic terminal and the PLC controllers of the subsystems is established by using the connection between the industrial gateway and the internet, so as to implement a remote update function of the PLC controllers.
Further, after the remote updating parameter setting of the PLC controllers of the subsystems in S3 is completed, the remote access software associated with the industrial gateway is installed at the remote end using the terminal device connected to the internet and parameter configuration is performed, the establishment of the remote VPN dedicated channel is completed with the help of the internet and the industrial gateway, so that the remote computer accesses the PLC controllers of the subsystems on the site, and after no problem is detected in the connection, the PLC controller program updating is performed on the remote computer using the PLC controller development environment downloading program.
Furthermore, the PLC remote updating firstly ensures that the industrial gateway and the PLC are in the same subnet and have different IP, the industrial gateway is connected with the Internet, and the IP addresses of the PLC of all subsystems of the PC automatic production line are written into the industrial gateway through unified planning, so that the adaptation of the industrial gateway and the PC automatic production line is completed.
Further, the specific content of the data item established in step S3 is as follows:
s3.1, carrying out induction and arrangement on data items to be acquired by the PLC of each subsystem;
and S3.2, recording the data item into an industrial gateway.
Further, the data items comprise manual/automatic states of the pallet truck, ex-warehouse/in-warehouse states of the mould platform, major part faults, manual/automatic states of the line-shifting truck, line-shifting states, major part faults, running states of all subsystem equipment, temperature, humidity, maintenance time and maintenance states in the maintenance subsystem, equipment faults in all subsystems and alarms; after the adaptation is completed by writing the data items to be acquired into the industrial gateway, because the data acquisition of each subsystem needs to be realized by a plurality of and different variables, the industrial gateway acquires the values of the data variables in real time according to actual needs, uploads the data to the cloud platform for storage, and realizes remote state monitoring and data storage analysis by means of the cloud platform.
Furthermore, the cloud platform generally purchases a matched cloud platform service when a gateway is purchased, after the cloud platform is logged in, a variable is established for a data item uploaded to the cloud platform by the industrial gateway, based on a cloud platform configuration monitoring picture, the monitoring picture is connected with a corresponding variable, and the cloud platform variable and the operation parameter of the field PLC are updated synchronously, so that the synchronous tracking of the field equipment operation condition is realized; the method comprises the steps that whether a variable can be written or not is set when the variable is established on a cloud platform, the writable variable can be remotely modified, a user can modify certain on-site operation parameters according to needs, the purpose of remote control is achieved, the cloud platform can log in through electronic terminals such as a computer, a mobile phone and a tablet personal computer, and the operation state of a PC automatic production line can be remotely monitored anywhere; by means of centralized management of each PC automatic production line sold by the cloud platform, according to data uploaded by the cloud platform on different PC automatic production lines, historical data of certain important indexes are extracted and analyzed, the running condition of the PC automatic production lines is convenient to observe, the defects of the prior art are analyzed, and a basis is provided for upgrading and improving the PC automatic production lines.
Further, the first electronic terminal is a desktop computer, a laptop computer, a mobile phone or a tablet computer.
Further, the second electronic terminal is a desktop computer, a laptop computer, a mobile phone or a tablet computer.
Further, the third electronic terminal is a desktop computer, a laptop computer, a mobile phone or a tablet computer.
Another object of the present invention is to provide a computer program for implementing the remote operation and maintenance and monitoring method for PC automatic production line.
Another object of the present invention is to provide an information processing terminal for implementing the remote operation and maintenance and monitoring method for PC automatic production line.
The invention has the following beneficial technical effects:
(1) according to the remote operation and maintenance and monitoring method for the PC automatic production line, the industrial gateway and the cloud platform are introduced into the PC automatic production line, so that the remote operation and maintenance functions of PLC controllers of all subsystems of the PC automatic production line are realized;
by establishing a VPN special channel, remote program updating is carried out on each subsystem PLC controller of the PC automatic production line, so that after-sale maintenance personnel do not need to visit the site every time, and the after-sale maintenance time and cost are reduced;
by realizing the remote data acquisition function, the operation states of all subsystems of the PC automatic production line are acquired in real time, the monitoring pictures are stored and manufactured by virtue of the cloud platform, and the monitoring pictures are logged in the cloud platform at the electronic terminal to be checked, so that the operation state monitoring of the field equipment is not limited by regions, and the operation parameters of the field equipment can be remotely changed.
(2) According to the remote operation, maintenance and monitoring system for the PC automatic production line, all sold PC automatic production lines are managed in a centralized manner by virtue of the cloud platform, key parameters of each device are stored, historical data are analyzed, and a reliable basis is provided for improvement and upgrading of the PC automatic production line.
Drawings
Fig. 1 is a schematic flow chart of a remote operation and maintenance and monitoring method for a PC automatic production line according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a remote operation and maintenance and monitoring system of a PC automatic production line according to an embodiment of the present invention.
Description of reference numerals: 1-a PLC controller; 2-an industrial switch; 3-an industrial gateway; 4-a cloud platform; 5-a third electronic terminal; 6-a first electronic terminal; 7-a second electronic terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
Example 1
The embodiment provides a remote operation and maintenance and monitoring method for a PC automatic production line, as shown in FIG. 1, the method includes the following steps:
s1, connecting the PLC of each subsystem on site to the industrial exchanger to form a local area network;
s2, connecting the local area network with an industrial gateway, and setting the industrial gateway and the PLC of each subsystem to be in the same network segment and different IP addresses;
s3, a first electronic terminal accesses a configuration page of the industrial gateway, and then the first electronic terminal sets PLC remote updating parameters and data acquisition parameters of all subsystems on the configuration page and establishes connection channels and data items of the industrial gateway and PLC controllers of all the subsystems;
the PLC remotely updating parameters comprises: IP addresses of PLC controllers of all subsystems and IP addresses of the industrial gateways;
inputting the IP addresses of the PLC controllers of all subsystems on the industrial gateway by adopting the first electronic terminal, wherein the IP addresses need to be consistent with the actual IP addresses of the corresponding PLC controllers;
establishing a connection channel and data items of an industrial gateway and a PLC (programmable logic controller), respectively establishing a connection channel corresponding to each on-site subsystem PLC controller in an industrial network by setting relevant parameters of an actual communication protocol of the industrial gateway and the on-site PLC controller, assigning different names to each channel, naming each subsystem as a corresponding channel, establishing the data items of each subsystem PLC in the channel, and configuring the content of each data item in detail, such as the name of the data item, the address of the corresponding PLC and the data type;
s4, connecting the industrial gateway configured in the step S3 to the Internet, and remotely updating programs in the PLC controllers of all subsystems through a second electronic terminal;
s5, connecting the industrial gateway to a cloud platform, and remotely monitoring an actual project configuration picture on the cloud platform by using a third electronic terminal;
the configuration picture comprises the operation state of key equipment in each subsystem, the temperature, the humidity, the maintenance time, the maintenance state and the faults in each subsystem, wherein the temperature, the humidity, the maintenance time and the maintenance state are contained in part of the subsystems.
The internet access mode supported by the industrial gateway comprises a 4G network, a wireless network and a wired network.
The specific steps of configuring the field device connection switch into the local area network in step S1 are as follows:
s1.1, arranging the industrial switch in a control cabinet arranged in the middle to ensure that the distance between the industrial switch and each subsystem controller is shortest;
s1.2, connecting the PLC controllers of all subsystems with the industrial switch by adopting a network cable;
s1.3, setting the IP addresses of the PLC of each subsystem as the same network segment, and distributing different IP addresses to the PLC controllers of each subsystem.
And the PLC controllers of the subsystems are arranged in the control cabinet.
And step S3, the industrial gateway comprises a PLC remote updating and data collecting function.
And step S4, establishing a VPN special channel between the second electronic terminal and the PLC of each subsystem on site by using the connection between the industrial gateway and the Internet, thereby realizing the remote updating function of the PLC.
After the remote updating parameter setting of the PLC of each subsystem is completed in S3, the remote terminal uses the terminal equipment connected with the Internet to install the remote access software matched with the industrial gateway and carry out parameter configuration, the establishment of a remote VPN special channel is completed by means of the Internet and the industrial gateway, so that the remote computer accesses the PLC of each subsystem on the site, and after no problem exists in test connection, the PLC development environment downloading program is used on the remote computer to update the program of the PLC.
The networking mode supported by the industrial gateway comprises a 4G mode, a wireless network and a wired network, and the industrial gateway is connected with the Internet by selecting a networking mode which is convenient in a production field; and carrying out adaptation development on the industrial gateway and each subsystem of the PC automatic production line.
The PLC remote updating firstly ensures that the industrial gateway and the PLC are in the same subnet and different in IP, the industrial gateway is connected with the Internet, and communication addresses of PLC controllers of all subsystems of the PC automatic production line are written into the industrial gateway through unified planning, so that the industrial gateway and the PC automatic production line are adapted.
The adaptive parameters comprise a PLC address, a local area network address and a VPN local area network IP address, and the IP addresses of all the branch system PLC controllers filled in the gateway are ensured to be consistent with the actual address of the field PLC.
The specific content of the data item established in step S3 is as follows:
s3.1, carrying out induction and arrangement on data items to be acquired by the PLC of each subsystem;
and S3.2, recording the data item into an industrial gateway.
The data items comprise pallet truck hand/automatic states, mould platform warehouse-out/warehouse-in states, major part faults, line-shifting truck hand/automatic states, line-shifting states, major part faults, operation states of all subsystems, temperature, humidity, maintenance time and maintenance states in the maintenance subsystems, equipment faults in all subsystems and alarms; after the adaptation is completed by writing the data items to be acquired into the industrial gateway, because the data acquisition of each subsystem needs to be realized by a plurality of and different variables, the industrial gateway acquires the values of the data variables in real time according to actual needs, uploads the data to the cloud platform for storage, and realizes remote state monitoring and data storage analysis by means of the cloud platform.
The cloud platform generally purchases matched cloud platform services when a gateway is purchased, after the cloud platform is logged in, a data item uploaded to the cloud platform by an industrial gateway is subjected to variable establishment, a monitoring picture is connected with a corresponding variable based on a cloud platform configuration monitoring picture, and the cloud platform variable and the operation parameters of the field PLC are updated synchronously to realize synchronous tracking of the operation condition of the field equipment; the method comprises the steps that whether a variable can be written or not is set when the variable is established on a cloud platform, the writable variable can be remotely modified, a user can modify certain on-site operation parameters according to needs, the purpose of remote control is achieved, the cloud platform can log in through electronic terminals such as a computer, a mobile phone and a tablet personal computer, and the operation state of a PC automatic production line can be remotely monitored anywhere; by means of centralized management of each PC automatic production line sold by the cloud platform, according to data uploaded by the cloud platform on different PC automatic production lines, historical data of certain important indexes are extracted and analyzed, the running condition of the PC automatic production lines is convenient to observe, the defects of the prior art are analyzed, and a basis is provided for upgrading and improving the PC automatic production lines.
The first electronic terminal is a desktop computer.
The second electronic terminal is a desktop computer.
The third electronic terminal is a desktop computer.
According to the remote operation, maintenance and monitoring method for the PC automatic production line, the industrial gateway and the cloud platform are introduced into the PC automatic production line, the remote operation and maintenance functions of the PLC controllers of all subsystems of the PC automatic production line are achieved, and remote program updating is carried out on the PLC controllers of all subsystems of the PC automatic production line through the establishment of the VPN special channel, so that after-sale maintenance personnel do not need to visit the site at each time, and after-sale maintenance time and cost are reduced. By realizing the remote data acquisition function, the operation states of all subsystems of the PC automatic production line are acquired in real time, the monitoring pictures are stored and manufactured by virtue of the cloud platform, and the monitoring pictures are logged in the cloud platform at the electronic terminal to be checked, so that the operation state monitoring of the field equipment is not limited by regions, and the operation parameters of the field equipment can be remotely changed. All sold PC automatic production lines are managed in a centralized mode through the cloud platform, key parameters of all devices are stored, historical data are analyzed, and reliable bases are provided for improvement and upgrading of the PC automatic production lines.
Example 2
The embodiment provides a remote operation, maintenance and monitoring system of a PC automatic production line, as shown in fig. 2, the system is established according to the remote operation, maintenance and monitoring method of the PC automatic production line in embodiment 1.
According to the remote operation and maintenance and monitoring system of the PC automatic production line, the industrial gateway and the cloud platform are introduced into the PC automatic production line, the remote operation and maintenance functions of all subsystem PLC controllers of the PC automatic production line are achieved, and remote program updating is carried out on all subsystem PLC controllers of the PC automatic production line by establishing the VPN special channel, so that after-sale maintenance personnel do not need to be in the field at each time, and after-sale maintenance time and cost are reduced. By realizing the remote data acquisition function, the operation states of all subsystems of the PC automatic production line are acquired in real time, the monitoring pictures are stored and manufactured by virtue of the cloud platform, and the monitoring pictures are logged in the cloud platform at the electronic terminal to be checked, so that the operation state monitoring of the field equipment is not limited by regions, and the operation parameters of the field equipment can be remotely changed. All sold PC automatic production lines are managed in a centralized mode through the cloud platform, key parameters of all devices are stored, historical data are analyzed, and reliable bases are provided for improvement and upgrading of the PC automatic production lines.
Claims (7)
1. A remote operation, maintenance and monitoring method for a PC automatic production line is characterized by comprising the following steps:
s1, connecting the PLC of each subsystem on site to the industrial exchanger to form a local area network;
s2, connecting the local area network with an industrial gateway, and setting the industrial gateway and the PLC of each subsystem in the same network segment;
s3, the first electronic terminal accesses a configuration page of the industrial gateway, and then the first electronic terminal sets PLC remote updating parameters and data acquisition parameters of all subsystems on the configuration page and establishes connection channels and data items of the industrial gateway and PLC controllers of all subsystems; the data items comprise pallet truck hand/automatic states, mould platform warehouse-out/warehouse-in states, major part faults, line-shifting truck hand/automatic states, line-shifting states, major part faults, operation states of all subsystems, temperature, humidity, maintenance time and maintenance states in the maintenance subsystems, equipment faults in all subsystems and alarms;
s4, connecting the industrial gateway configured in the step S3 to the Internet, and remotely updating programs in the PLC controllers of all subsystems through a second electronic terminal;
s5, connecting the industrial gateway to a cloud platform, and remotely monitoring an actual project configuration picture on the cloud platform by using a third electronic terminal; when the variable is established on the cloud platform, whether the variable can be written or not is set, the writable variable can be remotely modified, and a user modifies the on-site operation parameters as required to achieve the purpose of remote control;
after the PLC remote updating parameter setting of each subsystem in S3 is completed, the remote end uses the terminal equipment connected with the Internet to install the industrial gateway matched remote access software and carry out parameter configuration, the establishment of a remote VPN special channel is completed by means of the Internet and the industrial gateway, so that the remote computer accesses to the PLC controllers of each subsystem on the site, and after no problem exists in test connection, the PLC controller development environment downloading program is used on the remote computer to update the PLC controller program.
2. The remote operation, maintenance and monitoring method for the automatic production line of the PC as recited in claim 1, wherein the specific contents of the data items established in the step S3 are as follows:
s3.1, carrying out induction and arrangement on data items to be acquired by the PLC of each subsystem;
and S3.2, recording the data item into an industrial gateway.
3. The method as claimed in claim 1, wherein the step S3 of remotely updating the parameters by the PLC includes: and the IP addresses of the PLC controllers of the subsystems and the IP address of the industrial gateway.
4. The method as claimed in claim 1, wherein in step S4, the connection between the industrial gateway and the internet is used to establish a VPN channel between the second electronic terminal and the PLC controller of each subsystem on site, so as to implement a remote updating function of the PLC controller.
5. The remote operation, maintenance and monitoring method for the PC automatic production line according to claim 1, wherein the step S1 of configuring the field device connection switch as a local area network comprises the following specific steps:
s1.1, arranging the industrial switch in a centralized control cabinet to ensure that the industrial switch is the shortest distance away from the PLC of each subsystem;
s1.2, connecting the PLC controllers of all subsystems with the industrial switch by adopting a network cable;
s1.3, IP addresses of all the sub-system PLC controllers are set to be in the same network segment.
6. The method as claimed in claim 1, wherein the configuration screen of step S5 includes the operation status of the key equipments in each subsystem, the fault in each subsystem, and the temperature, humidity, maintenance time and maintenance status contained in some subsystems.
7. The remote operation, maintenance and monitoring method for PC automatic production line according to claim 1, wherein step S3 uses the first electronic terminal to input the IP address of the PLC of each subsystem on the industrial gateway to match the actual IP address of the corresponding PLC.
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