First, the Ethernet connection allows the CNC machine to interact with other parts of the factory.
The usual CNC machines are automated independent islands, as many of them are equipped with dedicated CNC systems that make it difficult to network with other companies' computer systems. But the revolution in CNC technology is enabling the CNC system to provide connectivity between PC functions and Ethernet so that data can be transferred from (and to) network systems.
Thanks to the openness of the CNC system and the provision of an Ethernet connection, the shop floor can get information from its machine to increase productivity and more. In fact, hanging CNC systems into a wide range of business systems, such as MES and ERP packages, can provide a number of production advantages.
Machine data can also be shared between suppliers and end users via the Remote Diagnostic Monitor (RM&D). In the past, even if the supplier had a maintenance service specialist locally, it still took time to deal with the failure. Now with the RM&D system, suppliers can monitor equipment from anywhere in the world, identify the source of the problem, solve problems immediately or send expert services, and return the machine to production with only a fraction of the time required.
Rajas Sukthankar, Project Manager, Motion Control Systems, Siemens Automation and Drives, points out other advantages of Ethernet connectivity. One of them is that it provides seamless integration in many existing IT equipment, so the shop can get CNC information and pass it to a higher level system in the factory automation equipment. For the office environment, Ethernet is also public, so those who work at the bottom of the factory do not need to learn something new, and the shop does not need to purchase some equipment that specifically connects the CNC and the front office.
Another benefit of the Ethernet connection is that it allows the shop to store a large number of programs on the local hard disk of the PC-based controller or transfer these programs directly to the CNC, effectively enabling the past to exist in the CNC structure. The limitations of memory have been eliminated with the application of next-generation CNC controllers.
Industrial Ethernet also provides high-speed, low-cost connectivity that is always faster and cheaper. The marketing development manager of Mitsubishi Electric Automation's transmission products believes that the advantages of Ethernet connectivity include speed and bandwidth. Bandwidth is the level at which information is transmitted throughout the network.
So why are all new CNC systems not talking to the rest of the company; partly because although many CNC vendors offer Ethernet channels in their new control system, they still follow standardized application protocols. Work, so the CNC system can talk to other computer systems in the factory, including other CNC systems. But because many CNC vendors offer different protocols for network work at different levels, standardization will be a form of deception.
In general, CNC devices have three levels of network work: the information layer, the control layer, and the device layer. The information layer transmits data from the machine tool to the machine tool or transfers information between the office environment and the operator station; the control layer controls the device, for example, synchronizes the actions of one controller with other controllers or peripheral auxiliary controllers. The total motion is synchronized; finally, the device layer is controlling I/O.
The Ethernet interface does not always use 3 levels. For example, the CNC and PC-based control systems produced by Mitsubishi use an Ethernet interface on the information layer for data transmission such as operating procedures, tool information, and monitoring of statistical data transmissions in the office environment. Many interfaces are supported at the device and control layers, which are devices and peripherals that are sent to the control system over the network. Some of these interfaces are dedicated to Mitsubishi. But Mitsubishi also offers some industry-standard networks that users need.
Second, the factors that should be considered for networking
The Marketing Manager of the IMC Business Unit at Rockwell Automation believes that one of the problems with Ethernet connectivity is that it is not “determinism.†It is decisive to ensure that data is transferred between the two devices during the specified time period. In order to ensure that the decisive network must be designed in another way. If you are concerned with passing information, such as large files and time-insensitive data from the main system (or to the main system) to monitor machine capabilities and status, decisiveness may not be an issue. Then Ethernet is very good. The key is to understand your requirements and choose the network that meets your needs.
Security issues also need to be considered, especially when companies view the Internet as a control network. GE Fanuc's open structure manager asked: "The Internet is very cost-effective, large and very popular. How do we believe that the channels we set up are only used to transfer information between good people?" Manufacturing Data Systems ( The chairman of MDSI) said: "Build an intranet." The intranet is an Internet-like network that is independent of the outside world. Companies can build an internal network with a firewall. In addition, the degree of security can be laid out within the CNC system itself. For example, MDSI provides nine levels of security in its open CNC products that allow the control system to lock down certain functions at a specific level. Level 9 security allows the shop to specify different passwords and enter them into the control system, so certain people can only access specific information. This means that a production operator will have another access path that is different from the machine adjustment or maintenance personnel.
Third, choose the control system
PC control is key to a shop that only wants Ethernet networking in its machine and plant range. The shop can use PC-based software that expands the standard communication tools available in their offices. Users should also know if the Ethernet connection is standard, controlled, or attached. The protocol supported by the system is very important because it determines how the information connection with other systems is controlled. The shop can choose a PC-NC CNC system or a CNC system with a PC front end. The former is a PC that takes care of the functions of the NC and PC. It is integrated into a hardware chip. Other CNC systems have a separate PC front-end, which is connected to the background by the bus (NC is left in the machine's panel/control cabinet).
MDSI has added another control type to the list - the software CNC. The company's open CNC combines a software CNC, software PLC and human machine interface (HMI) in one application, and does not require dedicated hardware or motion control cards.
Wayne Kotania, GE Fanuc's CNC software and communications product manager, said that CNC applications and software support should be considered regardless of the control system. He suggested that the CNC follow common programming standards and use open tools and techniques that are easy to provide and share information data.
It is important to use off-the-shelf Ethernet and Internet technologies in software and hardware, but it is also important to enter machine and process data—that is, data that users can define and change due to process changes. Too many control systems and data collection techniques limit the user's choice of data. This refers to both the amount of data that can be collected and the access to it. In order to change the data collection project, the user is required to switch back to the control system. There are too many quotients, so the control system should provide users with control and access to unlimited machine and process data.
Machine data relates to maintenance and machine tool diagnostics, while process data is centered around the operation of the machine. Using this information, the shop can carefully observe the entire machining cycle to find out what is the factor that affects cycle time and workpiece quality.
Despite the new control technology, it is still at the bottom of the workshop that hinders the use of Ethernet or the Internet by the CNC system. More than 90% of installed machines lack some form of connection to other parts of the enterprise. The shop of course buys new machines with built-in control connections, but they don't pay attention to the basics of the NC/CNC machine installed. For these machines, there are two options: retrofitting with a new control system or adding a DNC-style interface to the machine. The latter solution is a "shortcut" in terms of the needs of the manufacturer. These hardware channels provide the conditions for quick access to the machine. But this means that one must integrate another PLC to send data to the hardware channel. However, the hardware channel does not make the machine run very fast. For some performance benefits, it is best to upgrade the control system with an Ethernet connection.
Another problem with machine networking is that wired, most CNC systems are connected by RS-232 instead of Ethernet, making them unfavorable for networking. Since the installation of new cables is expensive, the workshop can study the wireless connection scheme, but the deployment of any wireless connection involves wireless detection, and it is necessary to look at the things that may affect the connection - electrical noise, metal acting as an antenna Wall and so on. Someone needs to read the data from the entire field to arrange the collection points. The collection point should be a device located at the center of the plant, which is plugged into a local area network to receive and transmit wireless signals.
The usual CNC machines are automated independent islands, as many of them are equipped with dedicated CNC systems that make it difficult to network with other companies' computer systems. But the revolution in CNC technology is enabling the CNC system to provide connectivity between PC functions and Ethernet so that data can be transferred from (and to) network systems.
Thanks to the openness of the CNC system and the provision of an Ethernet connection, the shop floor can get information from its machine to increase productivity and more. In fact, hanging CNC systems into a wide range of business systems, such as MES and ERP packages, can provide a number of production advantages.
Machine data can also be shared between suppliers and end users via the Remote Diagnostic Monitor (RM&D). In the past, even if the supplier had a maintenance service specialist locally, it still took time to deal with the failure. Now with the RM&D system, suppliers can monitor equipment from anywhere in the world, identify the source of the problem, solve problems immediately or send expert services, and return the machine to production with only a fraction of the time required.
Rajas Sukthankar, Project Manager, Motion Control Systems, Siemens Automation and Drives, points out other advantages of Ethernet connectivity. One of them is that it provides seamless integration in many existing IT equipment, so the shop can get CNC information and pass it to a higher level system in the factory automation equipment. For the office environment, Ethernet is also public, so those who work at the bottom of the factory do not need to learn something new, and the shop does not need to purchase some equipment that specifically connects the CNC and the front office.
Another benefit of the Ethernet connection is that it allows the shop to store a large number of programs on the local hard disk of the PC-based controller or transfer these programs directly to the CNC, effectively enabling the past to exist in the CNC structure. The limitations of memory have been eliminated with the application of next-generation CNC controllers.
Industrial Ethernet also provides high-speed, low-cost connectivity that is always faster and cheaper. The marketing development manager of Mitsubishi Electric Automation's transmission products believes that the advantages of Ethernet connectivity include speed and bandwidth. Bandwidth is the level at which information is transmitted throughout the network.
So why are all new CNC systems not talking to the rest of the company; partly because although many CNC vendors offer Ethernet channels in their new control system, they still follow standardized application protocols. Work, so the CNC system can talk to other computer systems in the factory, including other CNC systems. But because many CNC vendors offer different protocols for network work at different levels, standardization will be a form of deception.
In general, CNC devices have three levels of network work: the information layer, the control layer, and the device layer. The information layer transmits data from the machine tool to the machine tool or transfers information between the office environment and the operator station; the control layer controls the device, for example, synchronizes the actions of one controller with other controllers or peripheral auxiliary controllers. The total motion is synchronized; finally, the device layer is controlling I/O.
The Ethernet interface does not always use 3 levels. For example, the CNC and PC-based control systems produced by Mitsubishi use an Ethernet interface on the information layer for data transmission such as operating procedures, tool information, and monitoring of statistical data transmissions in the office environment. Many interfaces are supported at the device and control layers, which are devices and peripherals that are sent to the control system over the network. Some of these interfaces are dedicated to Mitsubishi. But Mitsubishi also offers some industry-standard networks that users need.
Second, the factors that should be considered for networking
The Marketing Manager of the IMC Business Unit at Rockwell Automation believes that one of the problems with Ethernet connectivity is that it is not “determinism.†It is decisive to ensure that data is transferred between the two devices during the specified time period. In order to ensure that the decisive network must be designed in another way. If you are concerned with passing information, such as large files and time-insensitive data from the main system (or to the main system) to monitor machine capabilities and status, decisiveness may not be an issue. Then Ethernet is very good. The key is to understand your requirements and choose the network that meets your needs.
Security issues also need to be considered, especially when companies view the Internet as a control network. GE Fanuc's open structure manager asked: "The Internet is very cost-effective, large and very popular. How do we believe that the channels we set up are only used to transfer information between good people?" Manufacturing Data Systems ( The chairman of MDSI) said: "Build an intranet." The intranet is an Internet-like network that is independent of the outside world. Companies can build an internal network with a firewall. In addition, the degree of security can be laid out within the CNC system itself. For example, MDSI provides nine levels of security in its open CNC products that allow the control system to lock down certain functions at a specific level. Level 9 security allows the shop to specify different passwords and enter them into the control system, so certain people can only access specific information. This means that a production operator will have another access path that is different from the machine adjustment or maintenance personnel.
Third, choose the control system
PC control is key to a shop that only wants Ethernet networking in its machine and plant range. The shop can use PC-based software that expands the standard communication tools available in their offices. Users should also know if the Ethernet connection is standard, controlled, or attached. The protocol supported by the system is very important because it determines how the information connection with other systems is controlled. The shop can choose a PC-NC CNC system or a CNC system with a PC front end. The former is a PC that takes care of the functions of the NC and PC. It is integrated into a hardware chip. Other CNC systems have a separate PC front-end, which is connected to the background by the bus (NC is left in the machine's panel/control cabinet).
MDSI has added another control type to the list - the software CNC. The company's open CNC combines a software CNC, software PLC and human machine interface (HMI) in one application, and does not require dedicated hardware or motion control cards.
Wayne Kotania, GE Fanuc's CNC software and communications product manager, said that CNC applications and software support should be considered regardless of the control system. He suggested that the CNC follow common programming standards and use open tools and techniques that are easy to provide and share information data.
It is important to use off-the-shelf Ethernet and Internet technologies in software and hardware, but it is also important to enter machine and process data—that is, data that users can define and change due to process changes. Too many control systems and data collection techniques limit the user's choice of data. This refers to both the amount of data that can be collected and the access to it. In order to change the data collection project, the user is required to switch back to the control system. There are too many quotients, so the control system should provide users with control and access to unlimited machine and process data.
Machine data relates to maintenance and machine tool diagnostics, while process data is centered around the operation of the machine. Using this information, the shop can carefully observe the entire machining cycle to find out what is the factor that affects cycle time and workpiece quality.
Despite the new control technology, it is still at the bottom of the workshop that hinders the use of Ethernet or the Internet by the CNC system. More than 90% of installed machines lack some form of connection to other parts of the enterprise. The shop of course buys new machines with built-in control connections, but they don't pay attention to the basics of the NC/CNC machine installed. For these machines, there are two options: retrofitting with a new control system or adding a DNC-style interface to the machine. The latter solution is a "shortcut" in terms of the needs of the manufacturer. These hardware channels provide the conditions for quick access to the machine. But this means that one must integrate another PLC to send data to the hardware channel. However, the hardware channel does not make the machine run very fast. For some performance benefits, it is best to upgrade the control system with an Ethernet connection.
Another problem with machine networking is that wired, most CNC systems are connected by RS-232 instead of Ethernet, making them unfavorable for networking. Since the installation of new cables is expensive, the workshop can study the wireless connection scheme, but the deployment of any wireless connection involves wireless detection, and it is necessary to look at the things that may affect the connection - electrical noise, metal acting as an antenna Wall and so on. Someone needs to read the data from the entire field to arrange the collection points. The collection point should be a device located at the center of the plant, which is plugged into a local area network to receive and transmit wireless signals.
Rectangular Magnets are six-sided magnet with straight sides where all angles are right angles (90°). Opposite sides of the magnet are parallel. They are commonly used in holding applications where they fit within a channel to increase their holding force. We carry a selection of different shapes and sizes and can manufacture magnets to our customers' specifications.
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The dimensions for blocks are Length x Width x Height (mm).
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