Challenge
SCADA lives on an isolated OT network for good reasons.
Agnotic approach
We integrate through a secured boundary — OPC UA gateways, a DMZ/broker, and IEC 62443-aligned segmentation — so data flows out without exposing the control network.

We connect SCADA systems to the rest of your stack — enterprise applications, IIoT platforms, historians, and analytics — so real-time operational data leaves the control room and reaches the people and systems that need it.
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SCADA systems run the control room — polling PLCs and RTUs, driving HMIs, and logging process data across manufacturing lines, utilities, energy, and water. The value is trapped there until it is integrated: pushed up to enterprise applications and analytics, and connected sideways to IIoT platforms and historians so operations, maintenance, and management see the same live picture.
The hard part is the OT/IT boundary. SCADA speaks industrial protocols (Modbus, DNP3, IEC 61850) on networks that were never meant to touch corporate IT, and pushing that data out safely matters as much as reading it. We build a protocol-aware, security-conscious integration layer — OPC UA gateways, MQTT publishing, and IEC 62443-aligned segmentation — that exposes operational data to modern systems without opening the control network to risk.
See how we design SCADA integration across the OT/IT boundary — protocol gateways, historian feeds, and secure data exposure to enterprise systems.

Common failure modes
Challenge
SCADA lives on an isolated OT network for good reasons.
Agnotic approach
We integrate through a secured boundary — OPC UA gateways, a DMZ/broker, and IEC 62443-aligned segmentation — so data flows out without exposing the control network.
Challenge
Legacy RTUs and PLCs speak old serial protocols.
Agnotic approach
Protocol gateways bridge Modbus, DNP3, and IEC 61850 to OPC UA / MQTT, so old field devices join a modern data flow.
Challenge
High-rate tag data overwhelms downstream systems.
Agnotic approach
Edge buffering, deadbanding, and store-and-forward compress and smooth tag streams before they reach historians or the cloud.
Challenge
Tag names and engineering units differ per site.
Agnotic approach
A normalization layer maps site-specific tags and units onto a canonical asset model before analytics or enterprise systems consume them.
The exact connectivity surface behind SCADA that talks safely to enterprise and IIoT systems.
OPC UA, Modbus, DNP3, and IEC 61850 connectivity to PLCs, RTUs, and SCADA servers, with gateways for legacy serial devices.
MQTT publishing and time-series historian feeds so tag data streams into dashboards, analytics, and predictive models.
IEC 62443-aligned segmentation, brokered data exposure, and read-mostly access so operational data leaves the control network safely.
APIs and event streams that push operational data into ERP, EAM/CMMS, BI, and cloud platforms in a consistent model.
Where it runs
Stream live SCADA tags into real-time dashboards for operations and management.
Feed tag data into historians and analytics platforms for trending and optimization.
Route equipment telemetry to condition-monitoring and predictive-maintenance models.
Publish alarms and events to notification, ticketing, and EAM/CMMS systems.
Aggregate multi-site operational data into ERP and BI for compliance and KPI reporting.
Securely expose operational data to cloud platforms for remote and multi-site visibility.
SCADA projects break on protocol variance and network security, not on reading a single tag. We plan for both from the first survey.
Standards we build against
Protocol survey, secure boundary design, and monitoring treated as the real engineering.
We inventory SCADA servers, PLCs/RTUs, protocols, and the tag set, and map the OT/IT network boundary.
We stand up OPC UA / MQTT gateways and a segmented, IEC 62443-aligned boundary for safe data exposure.
We validate tag flows, buffering, and normalization against real signals, including dropped links and burst loads.
Cutover with store-and-forward, health checks, and alerting so a dropped feed is visible and recoverable.
Integration surface
The systems SCADA integration connects and how we handle each.
| System | Typical protocol | Direction | What flows |
|---|---|---|---|
| PLCs / RTUs | Modbus / DNP3 | Inbound | Field device tags, counts, and process values. |
| Substation / grid | IEC 61850 | Inbound | Protection, metering, and switchgear status. |
| IIoT platform / historian | OPC UA / MQTT | Round-trip | Tag telemetry for trending, analytics, and models. |
| ERP / EAM / CMMS | REST / event | Outbound | Runtime, alarms, and events for maintenance and reporting. |
| Cloud / BI | MQTT / REST | Outbound | Aggregated multi-site operational data. |
Every site differs across OT vendors and network posture. We profile your real environment before committing to a design.
Operational data exposed safely — not a control network cracked open for a dashboard.
IEC 62443-aligned segmentation and brokered, read-mostly access so integration never becomes an OT attack surface.
Fluent in OPC UA, Modbus, DNP3, and IEC 61850 across manufacturing, utilities, and energy — not just IT protocols.
Edge buffering and deadbanding so high-rate tag data does not overwhelm historians or the network.
We connect SCADA to IIoT, historians, ERP, and analytics as one system, not isolated point interfaces.
Operational data that reaches the whole business
Tell us your SCADA platform, protocols, and sites. We will return a realistic, security-conscious integration plan.
contact@agnotic.com
Partnerships
contact@agnotic.com