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Online SCADA System — Industrial Monitoring That Works in Your Browser

Monitor PLCs, energy meters, and field devices from any browser — no server to install, no VPN, no IT overhead. Connect Modbus TCP/RTU, MQTT, and OPC UA devices in minutes.

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No credit card · Works in any browser · Full features for 60 days

What is an Online SCADA System?

A traditional SCADA system requires a dedicated server, Windows client software on every workstation, and a VPN for remote access. An online SCADA system moves all of that to the cloud — your dashboards, alarms, historical trends, and configuration live in a secure hosted platform that any browser can reach.

A small edge connector — lightweight software running on a local PC or Raspberry Pi — bridges your Modbus TCP/RTU, MQTT, or OPC UA field devices to the cloud. The edge connector makes outbound-only connections, so no inbound firewall rules are needed at your plant.

The result: live plant data visible from any browser, anywhere in the world, with role-based access control, alarms, and historical trends — without any server infrastructure to manage.

Key Features

Everything a modern online SCADA system needs, hosted in the cloud

🌐 Real-Time Monitoring

Live tag values update every second in your browser dashboard. No page reload needed — data streams directly from field devices via the edge connector.

📡 Modbus TCP + RTU

Connect any Modbus TCP/IP device directly. For Modbus RTU serial devices, the edge connector reads COM port data and relays it to the cloud. Up to 64 slaves per connection.

🔔 Alarm Management

Set high/low/threshold alarms on any tag. Alarms trigger email or SMS notifications instantly. Full alarm history and acknowledgement log for compliance.

📊 Historical Trends

Every tag value is logged continuously. Query historical data by time range, export to CSV, and view trends side-by-side for root cause analysis.

🏭 Multi-Site Dashboard

Monitor multiple plants, substations, or remote sites from a single account. Add a new edge connector per site in minutes — no additional infrastructure needed.

🔒 Role-Based Access

Admin, Operator, and Viewer roles limit what each user can see and control. Every tag write and configuration change is logged in a tamper-evident audit trail.

Protocol Support

Connect virtually any industrial device

Modbus TCP

Direct TCP/IP connection to PLCs, energy meters, and Modbus gateways. Port 502 by default or any custom port.

Modbus RTU

Serial RS-485/RS-232 devices via edge connector. Supports up to 64 RTU slaves on a single bus.

MQTT

Subscribe to any MQTT broker topic. Ideal for IoT sensors, gateways, and edge devices publishing JSON or CSV payloads.

OPC UA

Connect OPC UA servers from Siemens, Rockwell, and Kepware. Browse the server namespace and map nodes to tags automatically.

Get Your Online SCADA Running in 3 Steps

1

Connect Your Device

Register for the free trial, download the edge connector, and install it on any PC that can reach your PLC or Modbus device. Enter the device IP, port, and slave ID — the connector starts polling immediately.

2

Configure Tags & Alarms

Map Modbus registers or MQTT topics to named tags. Set alarm thresholds and choose email or SMS notification for each tag that matters to your operation.

3

View From Any Browser

Open your online SCADA dashboard from any browser — office PC, tablet, phone. Share a view-only link with clients or management. Historical data is always available for trend analysis.

Online SCADA vs Traditional SCADA — What Actually Changes

Traditional SCADA platforms — Ignition, WinCC, iFIX, Citect — were designed before cloud computing existed. They require on-premise servers, Windows workstation clients, and VPN tunnels for remote access. The total cost of ownership for a mid-size plant often exceeds $50,000 before a single tag is live.

An online SCADA system eliminates the server, workstation clients, and the VPN. The edge connector is the only software touching your plant network — and it makes outbound connections only, so network security is actually simpler. You pay a monthly SaaS fee instead of a five-figure upfront license.

Before connecting your devices to an online SCADA system, test them with our Modbus Slave Simulator to validate register maps and protocol behavior. Or use the Modbus TCP Simulator to test your SCADA configuration without real hardware.

Frequently Asked Questions

What is an online SCADA system?

An online SCADA system is a browser-based industrial monitoring platform hosted in the cloud. Instead of running SCADA software on an on-premise server, all dashboards, alarms, trends, and configuration live in a hosted platform accessible from any web browser. A small edge connector bridges your field devices to the cloud.

What protocols does your online SCADA system support?

SCADA Cloud supports Modbus TCP, Modbus RTU, MQTT, and OPC UA. Most industrial PLCs, energy meters, VFDs, and remote I/O modules communicate over one of these protocols. If your device has a Modbus register map, MQTT feed, or OPC UA server, it can connect to SCADA Cloud in minutes.

Do I need to open firewall ports to use an online SCADA system?

No. The edge connector makes outbound HTTPS connections to the SCADA Cloud servers — similar to a browser visiting a website. No inbound firewall ports need to be opened at your plant. This makes deployment simpler and more secure than traditional VPN-based remote SCADA access.

How long does it take to set up an online SCADA system?

Most engineers get their first live dashboard within 30–60 minutes: register for the free trial, install the edge connector on a PC that can reach your device, configure the Modbus connection, map registers to tags, and build a dashboard. No SCADA certifications or server administration knowledge required.

Related Tools & SCADA Pages

Test your Modbus devices or explore other SCADA deployment options

Start Monitoring Your Plant Online — 60 Days Free

No credit card · No hardware required for trial · Works in any browser

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