HMI (Human–Machine Interface) Design And Programming
By Pro-Logic Technologies
The best-written PLC logic in the world is still only as useful as the screen an operator interacts with to run it. A cluttered, inconsistent, or confusing interface leads to slower response times, more operator errors, and more calls to maintenance for things that were actually working correctly the whole time. Our HMI programming Nairobi clients call us for is built around one core idea: the screen should make the process obvious, not just technically accurate.
Designing Around The Operator, Not The Programmer
A lot of HMI screens are built to mirror the PLC's internal logic rather than the way an operator actually thinks about the process. We design layouts around real workflows, grouping controls and readouts the way a shift operator would naturally look for them, using consistent colour coding for status, alarms, and manual overrides so a new operator can understand a screen within minutes rather than weeks.
Platforms We Work With
Our engineers program HMIs across the major platforms used in Kenyan industry, including Siemens WinCC and Comfort panels, Allen-Bradley PanelView, Mitsubishi GOT, Omron NB and NA series, and Weintek panels, matching the platform to the controller already installed rather than forcing a mismatched combination.
Alarming, Trending, And Navigation
Every HMI we build includes a clear alarm summary screen, trend views for the values operators check most often, and navigation that gets a user to any screen within two or three taps, not buried five menus deep. We also build in recipe management where a process calls for it, letting operators load pre-set parameters for different product runs without needing engineering support each time.
Retrofitting Old Panels
A large part of our HMI work is retrofitting outdated or failing physical panels, migrating existing screen logic across to modern touch panels while cleaning up the layout and tag structure in the process rather than simply recreating old, cluttered screens on newer hardware.
Typical Costs (KES)
| Service | Typical Cost Range (KES) |
|---|---|
| Single-panel HMI screen design and programming | 20,000 – 60,000 |
| Multi-screen HMI project (per station) | 50,000 – 180,000 |
| Legacy panel retrofit | 25,000 – 70,000 |
| Recipe management setup | 15,000 – 40,000 |
Where We Work
We design and program HMIs for facilities across Nairobi's industrial area, Ruaraka, Athi River, and Thika Road, with training included for plant operators once a system is commissioned.
Frequently Asked Questions
Can you migrate our existing HMI screens to a new panel brand? Yes, we can carry existing logic and layouts across to a different platform while improving usability at the same time.
Do you provide operator training after installation? Yes, basic operator training is included as part of every HMI commissioning.
Can HMI screens be accessed remotely? Depending on the platform and your network setup, remote viewing and limited remote control are both possible.
For HMI programming Nairobi plants trust for both new panels and legacy retrofits, contact Pro-Logic Technologies for a written quote.