Unlike other real-time Ethernet buses, Profinet requires station names and IP addresses for slaves (IO-devices in Profinet nomenclature) in order to communicate with them. However, since these parameters are assigned on an application-specific basis, they are usually not available for Profinet devices that have just been manufactured and are now undergoing end-of-line testing. However, since […]
We at müller+krahmer have many years of experience in testing pneumatic components. The range of devices we test includes simple directional control valves as well as high-precision proportional valves, valve terminals, intelligent pneumatic sensors with bus interfaces, components for industrial applications as well as for installation in road and rail vehicles. The test methods and […]
As we have already mentioned here, while LabVIEW is inherently strong at connecting analogue and digital signals, special solutions are required for communication with fieldbuses, such as our interface for the real-time Ethernet boards of Hilscher’s cifX family. Sometimes, however, a complete fieldbus connection is not necessary and it is sufficient to connect intelligent sensors and […]
This amount of data must be processed by one of our evaluation applications for test bench data. Only a handful of characteristic parameters remain from complex time curves and a million measurement values. And only these parameters – and, above all, their changes over the course of the test, which can last days or weeks […]
This has been the trending topic of our customer inquiries in recent weeks. While the capabilities of LabVIEW and NI hardware in the acquisition and output of analog signals are undisputed, the situation is different when it comes to connecting real-time Ethernet buses. Numerous forum discussions and questions from our customers prove this. For a […]
For more than 20 years we support the Emerson subsidiary Aventics with solutions based on NI hardware and software, such as compactRIO, LabVIEW and DIAdem. Therefore we look forward to see what synergies will result for our work from Emerson’s acquisition of NI.
There is powerful visualization software available for every PLC that can display current system states in almost any way. And yet there is sometimes the need for a simple way to record, visualize, save and analyze PLC data. If the PLC has a fieldbus interface (e.g. Profinet, EtherCAT, SERCOS III or Ethernet/IP), this is very […]
For a long time, it was everywhere, but recently there wasn’t much to hear about – NI’s big analogue data (TM), characterised by the five Vs: volume, variety, velocity, value and visibility. Of course, it is still there and growing. Perhaps it has fallen out of the spotlight because we have become accustomed to it. […]
The use case is typical: many sources provide data that is evaluated in a standardized way and then used by a group of users. In this specific case, measurements on vehicles in drive simulations produce large amounts of data around the clock. This data is processed, searched for events and used to calculate characteristic parameters. […]
Process data objects (PDOs) are typically used in EtherCAT (and other fieldbuses) to transport (cyclical) real-time data, while service data objects (SDOs) are used for (acyclical) parameterization. But what if the PDOs are not available for cyclical control due to customer requirements, but the reaction of the test object to cyclical setpoints is to be […]