Embedded Systems: Custom Solutions for the Plant Floor

Edge devices capture high-frequency signals directly from machinery, pre-process them, and feed clean data to your monitoring and maintenance systems — even where network bandwidth or compute is limited.

Embedded controllers keep processes stable and repeatable, driving accuracy in motor control, algorithm acceleration, and real-time automation tasks that directly affect product quality and throughput.

Industrial embedded work needs hardware that survives the plant, deterministic timing, and clean integration into existing plant control networks. Our engineers deliver proven solutions that meet these constraints without disrupting operations.

Some jobs cannot wait for a network round trip. Closed-loop control of a motor, a safety interlock, or sampling a vibration signal at kilohertz rates has to run on the device, with deterministic timing and no dependence on the plant network being up. A server-side application is the wrong tool there; an embedded controller or an edge device is the right one.

The constraints decide the part: temperature range on the floor, vibration, available power, how many analog and digital inputs, and which fieldbus the device must speak. A microcontroller is enough for sampling and simple control; a small industrial PC or a Linux-class edge device is needed when the job includes buffering, protocol conversion or on-device analytics. Prefer parts with a long supply life; a plant device has to run for years and be replaceable.

Raw high-frequency data should not go to the cloud. The edge device computes what matters, such as RMS vibration, peak values, counts and run hours, and sends those over MQTT or OPC UA to the maintenance system at a rate the network and the people can use. It also buffers when the link is down and sends when it is back, so the history has no holes.

An edge device is a new node on the plant network, so it is designed as one: placed in the right zone, reading from the controller without writing to it unless that is its job, with its own credentials and an update path that does not require a laptop in the panel. The commissioning checklist covers I/O mapping, timing under load, failure modes when a sensor disconnects, and what the device does on power loss.

A twenty-year-old gearbox on a main conveyor has no instrumentation and no spare. An edge device with an accelerometer samples at several kilohertz, computes RMS vibration and peak values on the device, and sends one reading per minute over MQTT to the maintenance system. When the trend crosses the warning level, a work order is raised with the last hour of readings attached. The device runs on the panel's existing 24 V supply, buffers a day of readings if the network drops, and is replaced from the shelf in minutes if it fails.

Embedded work is tested in a cell that looks like the plant: the real sensor, the real fieldbus, the same power supply, and deliberate faults such as a disconnected cable, a brown-out and a flood of messages. Timing is measured under load, not on the bench with nothing else running. Only a device that behaves correctly through all of that goes onto a machine, and the first one goes onto one machine for a month before more are built.

What is the one job that must run on the device rather than on a server, and what timing does it need? Which signals, at what rate, over which fieldbus? What happens on power loss, on a disconnected sensor, and on a network outage? How is firmware updated in the field without a laptop in the panel? How long will the chosen parts be available, and what is the spare? Writing these down before the first board is ordered is most of the engineering.

Describe the one task that is too fast or too remote for the server. Specify the signals, rates and timing. Build one unit, run it in a test cell against real equipment, then on one machine on the line for a month. Document the I/O map and the update procedure before the second unit is built.