AMADEUS LAB · COMPARISONS
Engineering technology comparisons
Short, practical comparisons for choosing technologies in software and industrial systems. The right choice depends on the required control, data model, connectivity, security and team capability.
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PLC vs SCADA
A PLC controls equipment and process logic; SCADA supervises, visualises and records selected data from PLCs and other field devices. They usually work together rather than replace one another.
Read the guide →ComparisonsOPC UA vs MQTT
OPC UA is usually stronger for structured industrial interoperability and rich information models, while MQTT is usually stronger for lightweight publish/subscribe telemetry across distributed systems. A gateway may use both.
Read the guide →ComparisonsModbus TCP vs OPC UA
Modbus TCP is a simple and widely supported register-based protocol; OPC UA provides richer modelling, browsing and security capabilities. The device capabilities and required data context should drive the choice.
Read the guide →ComparisonsIndustrial PC vs Raspberry Pi
An industrial PC is generally designed for harsher environments, longer support and industrial expansion; a Raspberry Pi can be a useful low-cost prototyping or edge-computing platform when environmental and lifecycle requirements are controlled.
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