IoTMarketi · Guides
Modbus and OPC UA: Connecting OT to IoT
PLCs still speak Modbus; OPC UA adds semantics and MQTT goes northbound. How gateways bridge OT to IoT.
Modbus
Register-based, simple, ubiquitous � RTU and TCP. Much of the legacy installed base still speaks Modbus.
OPC UA
Information models + secure sessions. Preferred when SCADA and digital twins need meaningful data.
Bridge pattern
PLC (Modbus) ? Edge gateway ? OPC UA or MQTT ? Cloud / UNS
Pick edge hardware from the catalog and read the protocol guide.
FAQ
Frequently Asked Questions
Modbus g�venli midir?
Klasik Modbus kimlik dogrulama i�ermez; izole VLAN, firewall ve m�mk�nse sifreli t�nel ile korunmalidir.
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