Digital work instructions: from workstation to machine integration

Digital work instructions help operators carry out assembly, inspection and maintenance step by step. The value is not in replacing paper with a screen. It is in providing the right instruction for the right product, clear visuals and checks during the job. That can reduce errors, but digital does not automatically mean correct or up to date.

At Vlegel Technology in Genk, we approach this as the software engineering team for machines, data and AI for factories and machine builders. We start at the workstation: what does the operator need to know, what information is available and where does uncertainty arise? Only then do we choose software and screens.

Choose the visuals to suit the task

A tablet suits people who move between workstations or need instructions beside a machine. Photos, short videos and drawings show how to carry out each task. Operators can confirm steps, enter measurements and report deviations. When choosing a device, consider use with gloves, secure mounting and readability on the factory floor.

A fixed PC or industrial touchscreen often makes more sense at an assembly bench. A larger screen has room for detailed drawings and diagrams, without constant zooming. By scanning an order or product number, the application can retrieve the relevant instruction through a link to MES or ERP. Make sure you record which instruction version applies to that order.

Augmented reality can project guidance onto a work surface or display it through smart glasses. This is useful when the location of a component matters or both hands need to stay free. AR does require attention to alignment, lighting, comfort and changes to the workstation. Sometimes a clear photo solves the same problem more simply.

Version control matters more than the screen

Paper instructions are difficult to update centrally. Digital instructions make distribution easier, but only with proper version control. Define who drafts changes, who approves them and when a new version takes effect. Make sure a job in progress cannot silently switch to revised steps.

Keep each step short: one action, the relevant visual and a clear check criterion. Give operators a way to flag anything unclear. Also agree on what happens if the network or instruction application goes down. Without those arrangements, you simply swap a missing folder for an inaccessible screen.

Connect instructions to order and machine data

Digital work instructions can do more than display information. They can record measurements and link checks to an order, product and instruction version. A ticked box alone does not prove that a task was carried out correctly. So distinguish between an operator confirmation and a check based on a measurement.

Where machine data is relevant, you can connect machines via OPC UA or exchange data via MQTT. A Unified Namespace (UNS) can make that information available to applications in a shared structure. This requires unambiguous machine identities, units and status definitions. A UNS does not replace instruction management or MES; it helps make data available in context.

AI supports, people decide

AI can help search approved instructions or find relevant passages in response to a question. Keep that role clearly defined: AI has read-only access and a person decides. Do not let AI send machine commands, change process settings or release instructions on its own. Show the source and version alongside each answer, so the operator or person responsible can check what it is based on.

Start with a specific workstation

Choose a workstation where instructions are consulted frequently or product variants cause confusion. Develop the steps with operators and test them during actual work. Then assess whether additional visuals or machine integration add value. That keeps the solution focused on getting the job done, not on packing in features.

Want to discuss how digital work instructions could fit your factory floor? Book a 15-minute conversation with Vlegel Technology. Together, we will look at one specific workstation, the available data and a sensible first step.