Deploying SCADA & IoT Over Existing LAN Ethernet Infrastructure With iNut — Leverage Your Network, No New Cabling

Many factories want to implement SCADA but hesitate right from the first step: cabling. Running new signal cables from the electrical cabinet to the control room is costly, forces production downtime, and picks up all sorts of noise — while data stays scattered across individual PLCs, requiring a walk to each cabinet just to jot down readings. No centralized monitoring, no alerts, no history — issues are often only discovered after the machine has already failed.

What few people notice: the infrastructure needed for SCADA is almost always already there. The LAN Ethernet network connecting office computers, cameras, printers… can also carry industrial data. iNut taps exactly that — plugging straight into the existing switch, talking to PLCs over standard protocols, and building an entire SCADA system without a single extra meter of signal cable. For remote corners with no network coverage, iNut adds WiFi Mesh / wireless RS485 to fill the gap.

SCADA starts with getting data out of whatever's already running. iNut doesn't require you to replace PLCs or install new sensors: it talks directly to existing equipment over standard industrial protocols. iNut OPC acts as the bridge — OPC UA · Modbus TCP/RTU · XML-DA — reading tags from PLCs, VFDs, power meters, flow meters… and normalizing them into a single unified data stream the whole system can use.

This is the core cost-saving point: the iNut gateway plugs straight into an existing Ethernet switch port in the plant, sharing the same network as the current system — no new signal cable needed. For locations far from the network cabinet (outdoor tanks, pump stations, storage at the far end of the plant), iNut RS485 / WiFi Mesh transmits wirelessly, can run on solar power, and covers the spots where cabling simply isn't feasible.

Data needs to be processed the moment it arrives. iNut PC serves as the edge layer: aggregating all tags from the PLCs on the LAN, logging history with iNut Datalogger, running local logic and computations even when the Internet is down. When needed, it uplinks over 4G to push data to iNut Platform — a self-hosted cloud platform giving you full control of your own data and letting you build your own SCADA dashboard.

SCADA isn't just for watching — iNut also takes action. Set a threshold once: pressure exceeds the limit → relief valve opens automatically; cabinet temperature rises → fan turns on; water level drops → backup pump kicks in. Logic runs right at the edge, so the response is instant and doesn't depend on connectivity, and iNut Muro handles microclimate control for areas that need stable conditions.

Problems don't wait for someone to be watching a screen. When a tag exceeds its threshold or a device loses connection, iNut PC pushes an alert immediately via Email/Telegram to the right person in charge — complete with the value, timestamp, and location. Technicians know before the line even has time to stop, handling issues early instead of chasing after the consequences.

The entire plant is shown on the iNut Platform SCADA dashboard: process diagrams, trends, status indicators, alerts — updated every second. Engineers watch on the big screen in the control room; managers open the iNut app to view remotely, change thresholds, and switch devices on/off right from their phone. Want to add LoRa or AI cameras? Everything flows into a single platform.

// Quick specs