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Case Study - versiondog used at Mann+Hummel

  • Text
  • Versiondog
  • Maintenance
  • Software
  • Mann
  • Hummel
  • Auvesy

CASE STUDY Mann + Hummel

CASE STUDY Mann + Hummel every single component in the network. As a result, maintenance work is not only easier, but also generally takes less time. At the very least, it is no longer necessary to search for the “correct” software version. For Wanninger, this represents a considerable improvement. “Repair times are now much shorter, as the system can be restored much more quickly following downtime,” he explains. “At Mann + Hummel, there have also been times when maintenance workers have had to search extensively for the latest software “Education and a high level of knowledge are key factors in ensuring good maintenance. They learn how to use versiondog during their training so they are ready to go as soon as they are finished.“ Klaus Wanninger, head of electrical maintenance at Mann + Hummel version. And sometimes there were no backups at all. The fast disaster recovery provided by the version control and data management system versiondog is extremely important to our day-to-day work.” With machine parameters changed and improvements made on a daily basis, it is particularly important that the latest version be accessible at any time.There are some parameters, however, that cannot be changed under any circumstances. Because versiondog allows users to limit access to specific parameters, certain sources of error can be eliminated completely. Fortunately, the systems used by Mann + Hummel are not made by a huge variety of different manufacturers. Of the Siemens systems (which account for 95%), components such as IPCs and PLCs are standardised, and a sufficient number of them are available. However, they are not pre-configured. If a component has to be replaced due to a faulty CPU, for example, then the most recent image simply has to be dragged from the versiondog server onto the computer. All maintenance staff are authorised to make this sort of change and, every time they do, they must provide authorisation so that it is possible to track who changed what, where, when and why. Ultimately, therefore, a small amount of effort is required, as the changes must also be recorded in the system in writing. However, it is no longer necessary to manually update excel tables or documents, as the change reasons are entered into the project in versiondog directly. And the time saved during disaster recovery means that the effort is more than worth it. For Wanninger, this represents a considerable improvement. “Repair times are now much shorter, as the system can be restored much more quickly following downtime,” he explains. “At Mann + Hummel, there have also been times when maintenance workers have had to search extensively for the latest software version. And sometimes there were no backups at all. The fast disaster recovery provided by the version control and data management system versiondog is extremely important to our day-to-day work.” With machine parameters changed and improvements made on a daily basis, it is particularly important that the latest version be accessible at any time.There are some parameters, however, that cannot be changed under any circumstances. Because versiondog allows users to limit access to specific parameters, certain sources of error can be eliminated completely. Fortunately, the systems used by Mann + Hummel are not made by a huge variety of different manufacturers. Of the Siemens systems (which account for 95%), components such as IPCs and PLCs are standardised, and a sufficient number of them are available. However, they are not pre-configured. If a component has to be replaced due to a faulty CPU, for example, then the most recent image simply has to be dragged from the versiondog server onto the computer. All maintenance staff are authorised to make this sort of change and, every time they do, they must provide authorisation so that it is possible to track who changed what, where, when and why. Ultimately, therefore, a small amount of effort is required, as the changes must also be recorded in the system in writing. However, it is no longer necessary to manually update excel tables or documents, as the change reasons are entered into the project in versiondog directly. And the time saved during disaster recovery means that the effort is more than worth it. Proactive time-saving The maintenance staff work proactively and follow a strict schedule. “This leaves plenty of room for more event-driven tasks,” says Wanninger. When asked about the benefits of versiondog, Klaus Wanninger and Christian Metz, Key Automotive Account Manager and himself a former maintenance worker at a tier 1 supplier, have many stories to tell of how much Page 2/4

CASE STUDY Mann + Hummel various different ways. The Mann + Hummel facility in Marklkofen, for example, has its own PC that external maintenance workers or onsite experts can use to log in to the facility via their browser. The change history allows you to track WHO changed WHAT, WHEN, WHY and WHERE in the Simatic S7 project. time was spent looking for the correct version of PLC software. For the system to function and in order to actually save time, a certain degree of preparation and discipline is required on the part of maintenance staff with regard to documentation. The structure of the production network, the assignment of permissions and the creation of different user groups must all be clarified – potentially in consultation with the experts at AUVESY. Mann + Hummel is currently in the process of upgrading to the latest version of versiondog, version 4.0. “Fortunately,” remarks Wanninger, “this version has also incorporated some suggestions from the industry”. One of these suggestions had already been implemented in a previous version. The scripting interface allows small, customised sub-programs to be added to versiondog so that users have more options for backups or Check-Outs, for example. “We regularly come up with new requests or suggestions. After all, the world of automation is always changing.”Tools such as the WebClient, which allows users to access various report functions (e.g. versiondog eventlog or PLC status) via their normal browser, can be used in With version 4.0, the new versiondog Factory Floor Status add-on is now also in use. “We now have more accurate information for our spare parts inventory,” explains Wanninger. With this add-on, it is immediately clear which components are installed and where they are located, so it is not necessary to keep a disproportionate number of PLCs in stock. Factory Floor Status also lists all current firmware versions, so it is easy to check whether an error was caused by outdated firmware or whether an update is needed. At Mann + Hummel, versiondog has now become such an important tool that the trainees now use it, too. “Education and a high level of knowledge are key factors in ensuring good maintenance,” explains Klaus Wanninger. When trainee maintenance staff work on projects involving PLCs and EPLAN technology, they make sure to document their project versions in their own folders. Whenever a change is made, then this must also be documented – just like in the real world. The only difference is that supervisors and instructors can intervene at any time to give advice regarding potential improvements. “They learn how to use versiondog during their training so they are ready to go as soon as they are finished,” says Wanninger. Mann + Hummel is also happy to present versiondog to other interested companies at its production facility. Klaus Wanninger explains: “We first encountered versiondog’s predecessor, VersionWorks, in the factory of another user. The best way to find out how something works and how it is used is to see it in action in the real world. In most cases, companies can see the potential benefits of the software after just a few minutes”. This is why versiondog has also become a maintenance standard at Mann + Hummel. A standard that works, and a standard that everyone is happy to use. Page 3/4

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