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Plug and Play Measurement Technology Is Within Reach … – "metrology information"

Inventions in dimension generation are an increasing number of connected to knowledge. Standardized communique channels are required to arrange the change of information from other machines successfully and with out mistakes. The producers of dimension and trying out generation depend on requirements for seamless integration into the sensible manufacturing facility.

Within the first of a three-part collection offering an perception into the varied actions of the VDMA for standardization in dimension generation. Increasingly machines and programs in mechanical engineering are speaking by means of the OPC UA communique same old. The most important step in opposition to interoperability in metrology was once lately accomplished with the spouse specification for geometric measuring programs (GMS). Member firms of the VDMA have introduced the advance of the interface to commercial adulthood in a particularly couple of minutes.

Dr. Karl-Dietrich Imkamp, ​​Chairman of the OPC UA Operating Crew Geometric Measurement Techniques at VDMA and Head of Metrological Qualification at ZEISS IQS (Commercial High quality Answers), explains in an interview what improves the interface in virtual knowledge communique and what’s the reason why for his nice dedication to the standardization of dimension generation.

Q: Geometric measuring programs are a prerequisite in mechanical as a way to manufacture portions and parts inside of outlined tolerances. Despite the fact that there was nice growth within the switch of information from the design within the type of CAD knowledge with tolerances, different knowledge has thus far steadily been transferred manually. What does the OPC UA interface to geometric dimension programs allow?

A: Within the VDMA operating team, we in particular regarded on the box of geometric measuring programs. The spectrum of gadgets levels from vernier calipers to multipoint, shape and floor measuring gadgets to coordinate measuring programs. In manufacturing, those gadgets are steadily discovered within the house of ​​processing machines. On this surroundings, we regarded as 5 utility spaces (use circumstances): provision of static and dynamic mechanical device knowledge, portions and order knowledge control, and the supply of dimension effects.

Q: When will the OPC UA communique same old in finding the vital acceptance?

A: Environment friendly implementation can best happen if identical processes – examples are the gadget standing or a loading procedure – on other programs corresponding to processing machines and measuring programs are mapped in the similar approach in the usual. In regards to OPC UA, that is accomplished via requirements that construct on one some other. The specification for slicing equipment will likely be in line with the specification for geometric measuring programs. The OPC UA specification for geometric measuring programs, in flip, builds at the specification for mechanical device equipment. Because of this, enforcing the usual for a gadget additionally calls for wisdom of the definitions for the programs within the surroundings. Alternatively, this additionally implies that programs can also be seamlessly built-in. This has a decisive affect on acceptance.

Q: What’s the standing of the advance of the OPC UA interface for geometric measuring programs?

A: We began in 2019 and are happy that when the presentation of the 2022 draft, the overall model is now being revealed. As with the presentation ultimate yr, we can use the Keep an eye on business honest in Stuttgart in Would possibly for the presentation. I am hoping that much more programs there will likely be connected to the revised umati dashboard on umati.app on the web to turn the potential of integration. The discharge of the OPC UA Significant other Specification for geometric dimension programs, GMS for brief, has thus been followed and revealed simply 3 years after the beginning of labor. The duty set through the operating team has thus been fulfilled. We’re looking forward to comments at the unencumber to peer if corrections are wanted.

Q: When the overall model is out, there may be nice pleasure. Till then, it’ll almost certainly require an excessive amount of time and effort?

A: The preparatory paintings is complicated. They must be funded. Any person has to write down the paperwork. It’s important to be conversant in the codecs for this. Then no longer best is a work of paper written on, however the file could also be revealed in machine-readable shape. That is an XML record that incorporates all the knowledge construction. The OPC UA Basis no longer best calls for the usual to be written, but additionally calls for a prototype to be offered. In our case, this was once carried out through the Institute for Keep an eye on Technology and Gadget Gear (ISW) on the College of Stuttgart as a simulation of a measuring gadget and visualized at the umati dashboard. We can thus provide the paintings to a substantial extent throughout the Keep an eye on business honest.

Q: With the initiative for standardization, you depend at the toughen of the VDMA. What’s your conclusion of the cooperation? 

A: The cooperation with the VDMA has paid off. The principle producers are represented within the VDMA and will due to this fact take part within the advent of the usual. This leads to a optimistic cooperation in no time. The duration dimension generation within the VDMA arranged the financing and regulated the cooperation with the OPC Basis. This paintings could also be vital for Germany as a industry location as a way to stay aggressive. Nonetheless, we’d have wanted for extra global participation. In concept, on the other hand, all representatives within the operating team also are at the transfer globally. Environment friendly cooperation has resulted. This will also be noticed within the velocity with which the usual was once advanced. Within 3 years it was once completed and at the street. Many standardization organizations fail to try this. In fact, this isn’t the way to all issues, however it has confirmed itself. Within the construction for OPC UA Slicing Gear, I consider it’ll proceed. 

Q: Is this the tip of the primary segment of construction for geometric measuring programs?

A: You might want to say that. It’s now documented which use circumstances we need to quilt. It’s necessarily about details about the software standing, i.e. what the software is recently doing and all data that describes the operational capacity. Moreover, automations can also be supported through the portions and order knowledge control. There’s nonetheless a necessity for additional construction right here as a way to keep an eye on the automation by means of OPC UA. In spite of everything, the supply of the dimension effects supplies the foundation for the closed loop.

Q: Is it basically about taking a look on the present standing of the measuring gadget?

A: Against this to different specs, we don’t keep an eye on the dimension procedure. We offer details about which measuring procedure is recently happening, however we don’t give the measuring gadget any instructions to transport and take measuring issues. That’s no longer a part of the specification. The I++-DME interface is acceptable for this and is handled in some other a part of this collection.

Q: Realizing the gadget standing of the measuring mechanical device is the place to begin. Then the query follows, what did the mechanical device be informed from the dimension?

A: There’s some other use case within the Significant other Specification. It’s concerning the dimension effects. We want to unify get entry to to dimension effects, however we don’t need to increase a brand new structure for dimension effects. For this reason we tell that there are dimension effects and we additionally tell the place the dimension effects can also be discovered, however – with one exception – we don’t give out particular person dimension effects. We didn’t see that as our process.

Are customers happy with the formal data that knowledge is to be had?

Q: We have now deliberate to a small extent to output dimension effects for understanding so-called closed-loop implementations. This implies when processing needs to be managed at once from the measuring software. Then we will, to a restricted extent, cross on data this is wanted for the correction. Alternatively, how a correction is to be treated is made up our minds through the processing mechanical device and no longer the measuring mechanical device. This leads to the common false impression {that a} correction worth is predicted from the measuring mechanical device. We known as it Correction Worth for the reason that worth is the foundation for a correction. Alternatively, it is just the supply of the ideas for the correction itself, which in flip needs to be performed through the processing mechanical device.

Q: What does the interface to OPC UA do?

A: With this interface it’ll be imaginable for every software to supply a minimum of its fundamental data. For instance, the software stories that this can be a coordinate measuring mechanical device that works with a selected sensor gadget and has a selected dimension quantity. I believe that offering data of this type will turn out to be same old within the future years. Each measuring software these days is attached to a minimum of one company-internal community and will make data to be had within the community. In accordance with this, you’ll then additionally create customer-specific extensions with OPC UA. There are already measuring gadgets that be in contact by means of OPC UA in virtual manufacturing. However they don’t be in contact in line with a normal.

Q: What’s the standpoint?

A: When you proceed this standardization and retailer the ideas in a uniform approach, then with a bit of luck you’re going to succeed in a standing that permits plug-and-play. Then the coordinate measuring gadget can also be mechanically built-in into the virtual manufacturing. With positive fundamental data, which is a part of the necessary scope of the Significant other Specification, it’ll almost certainly already be imaginable these days. Development in this, one can believe that one can download an excessive amount of data from a measuring software with no need to configure it and that this data can be utilized for different programs. Because of this the measuring gadget can paintings productively in a short while and can also be incessantly optimized. Moreover, there may be the potential of the supplier of the OPC UA implementation to increase same old modules which might be reusable and incessantly expandable.

For more info: www.vdma.org


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