Every automation project Yuriy takes on starts with a functional design document. This is a plain-language specification that describes exactly how the system should behave — what happens when an operator presses Start, how the process responds to a fault, what each screen on the HMI should display, and what interlocks protect equipment and personnel. It is written so that anyone on your team can read it, not just the programmer.
Most problems on automation projects do not come from bad code. They come from misunderstandings about what the system was supposed to do in the first place. A functional design catches those misunderstandings early — when changes cost hours instead of days. It also gives your operators and maintenance team a reference document they can use long after commissioning is complete.
Many integrators skip this step and go straight to programming. That approach might save time up front, but it almost always costs more in rework, change orders, and frustration during startup. Yuriy does not work that way. The functional design is the foundation that everything else is built on — the PLC program, the HMI screens, the electrical drawings, and the commissioning plan.
What Otomakeit Delivers
- Plain-language system description covering every operating mode and process state
- I/O lists mapping every sensor, actuator, and field device to its function
- Sequence descriptions for startup, shutdown, normal operation, and fault handling
- HMI screen specifications defining layout, navigation, and displayed values
- Alarm and interlock lists with priorities, responses, and reset conditions
- Process flow descriptions tying control logic to your actual production process
- Revision tracking so every change is documented and agreed upon before implementation
Delivery Approach
Yuriy starts by sitting down with the people who know the process — your operators, maintenance team, and engineering staff. He documents what the system needs to do in language your whole team can review and approve, not in PLC code that only a programmer can read. Where applicable, the specifications reference Siemens controller architecture and HMI capabilities so the document translates directly into the programming phase with no ambiguity.
The functional design goes through a formal review with your team before programming begins. This review is the single most valuable step in the entire project — it is far easier to change a paragraph in a document than to rewrite a function block in TIA Portal. Once approved, the functional design becomes the benchmark that the finished system is tested against during commissioning.
Planning a new project? Message Yuriy to discuss the controls scope.
