awtSCADA vs Ignition vs Rapid SCADA vs WinCC — Comparison for Small Projects

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Comparing Free/Affordable SCADA Systems for Small Industrial Projects

If you are looking for a SCADA system for a small to medium project (up to 1000 tags), here is how awtSCADA compares to popular alternatives:

Feature	awtSCADA	Ignition	Rapid SCADA	WinCC
Price	Free demo / $15K source	$3,900+	Free (open source)	$1,500+
Installation	None (single HTML)	Java server	Windows installer	Windows only
IEC 61850	Yes (MMS, GOOSE, SV)	Plugin ($)	No	Plugin ($)
OPC UA	Yes	Yes	Yes	Yes
Modbus TCP	Yes	Yes	Yes	Yes
Browser-based	Yes (100%)	Yes	Partial	No
Offline/Air-gap	Yes	No	Yes	Yes
Function Blocks	53	Unlimited	Limited	Many
Platform	Any browser	Cross-platform	Windows	Windows

When to choose awtSCADA:

• You need IEC 61850 support without expensive licenses
• You want zero-installation deployment
• You need to run on air-gapped networks
• Budget is limited but you need professional features

Links

• awtSCADA Demo
• Documentation
• Download

What SCADA system are you using? What features matter most to you?