# PLC signals in the cloud, while the line is still running.

> Industrial IoT development and PLC monitoring: reading live data from PLC units such as Siemens, moving it through a gateway into cloud dashboards, and wiring machines, sensors and readers into the business systems that record them. Production, downtime and efficiency become visible while the shift is still on.

- **Email:** hello@zhajmohamad.com
- **URL:** https://zhajmohamad.com/industrial-iot

## From the machine to the decision.

This is the cluster that separates a systems architect from a web developer: one end of the integration is a physical machine that will not wait for a retry.

- **PLC data collection** — Reading tags and registers from PLC units on the line, at the rate the process actually changes, without interfering with the control logic that runs it.
- **Gateways and edge devices** — A gateway between the plant network and the cloud, with local buffering so a dropped connection delays the data instead of losing it.
- **Embedded and sensor development** — ESP32 and smart sensor firmware for equipment with no data port of its own — scales, readers, access control and counters wired into the software that records them.
- **Monitoring dashboards** — Live output, downtime, cycle time and efficiency views built for the people on the floor and the people in the meeting — with alerts when a line stops.
- **Shop floor into business systems** — Production counts feeding stock, planning and reporting, so what the machine made and what the system believes were made are the same number.

## What the shop floor cannot see.

The machines already know all of this. The problem is that nothing above them does.

- **Production numbers arrive the next day** — Counted by hand at the end of the shift, typed in the morning, and already too late to act on.
- **Nobody knows why the line stopped** — Downtime is recorded as a reason someone remembers, not as a timestamp the machine produced.
- **PLC data monitoring with no path to the cloud** — The data exists on the panel and stops there, because the plant network was never meant to leave the building.
- **Stock and production disagree** — What was made and what was recorded drift apart, and the correction is a stock count nobody wants to do.
- **Equipment with no data port** — Scales, readers and older machines that only show a number on a display nobody is logging.
- **A dashboard that nobody trusts** — Built on manually entered numbers, so it disagrees with the floor and gets ignored within a month.

## Industrial systems already delivered.

- **DORTEK (dortek.com.tr)** — Signals from the production line now travel through a gateway into the cloud, where they become the dashboards production and stock decisions are made from.
- **Edip Saat (edipsaat.com)** — Machine-read input replacing manual entry, so the record is created where the physical event happens.

## Questions people ask.

**Do you touch the control logic?**
No. The reading side is kept strictly separate from the logic that runs the machine — data is read, never written back into the process. That boundary is what makes it safe to add monitoring to a line that is already producing.

**What if the internet connection drops?**
The gateway buffers locally and forwards when the link returns, so an outage becomes a delay rather than a hole in the data. Dashboards show the gap explicitly instead of drawing a straight line through it.

**Is this separate from your software work?**
It is the same work with a different endpoint. The value is rarely the dashboard on its own — it is production data reaching the stock, planning and reporting systems, which is an integration problem before it is an electronics one.

## Related specialisms.

- [Business process automation](https://zhajmohamad.com/business-automation)
- [Custom API & system integration](https://zhajmohamad.com/system-integration)
- [SaaS & multi-tenant platforms](https://zhajmohamad.com/saas-platforms)
- [Magento ERP & payment integrations](https://zhajmohamad.com/magento-integrations)
- [Custom e-commerce development](https://zhajmohamad.com/ecommerce)

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