Communication Protocols for IoT & Industrial Systems (2026 Guide)
The 2026 map of IoT and industrial communication protocols — MQTT, OPC UA, Modbus, CAN, Ethernet/IP, BACnet, LoRaWAN — and how to pick the right stack by layer and use case.
OpenPLC v3 + Modbus TCP: Open-Source PLC Architecture
OpenPLC v3 reference architecture with Modbus TCP — runtime internals, IEC 61131-3 languages, hardware targets, and a production deployment pattern for open-source PLCs in 2026.
Build an OPC UA Server in Python with asyncua (Tutorial)
Hands-on tutorial: building a production-ready OPC UA server in Python with asyncua — address space modeling, security policies, subscriptions, and Docker packaging for IIoT in 2026.
BACnet/IP and BACnet Secure Connect: Building Automation Deep Dive
BACnet/IP architecture, BACnet Secure Connect (BACnet/SC), object model, BBMD broadcasting, hub-and-spoke topology, and the 2026 cybersecurity migration story.
Building an MQTT-to-Kafka Bridge with Kafka Connect: Production Tutorial
Step-by-step production tutorial for bridging MQTT to Kafka with the Lenses MQTT Source connector — schema mapping, QoS handling, Sparkplug B decoding, and HA topology.
OPC UA Pub/Sub: MQTT vs UADP Architecture Comparison
OPC UA Pub/Sub architecture compared — UDP UADP for deterministic LAN delivery vs MQTT for cloud-friendly fan-out. Mappings, message security, and when each wins.
ISA-100.11a vs WirelessHART: Wireless Industrial Networks Compared
ISA-100.11a vs WirelessHART head-to-head — TSCH MAC, 802.15.4 PHY, security architecture, gateway models, and how to choose for process automation networks.
Thread vs Matter: IoT Connectivity Protocols Compared (2026)
Thread vs Matter — network layer vs application layer. Mesh routing, OpenThread border router, Matter clusters, IPv6, and the 2026 smart-home interop story explained.
IO-Link Wireless: Industrial Sensor Network Architecture
IO-Link Wireless reference architecture — 2.4 GHz time-slotted protocol, 5 ms cycle time, master–device topology, coexistence with Wi-Fi/BT, and IODD device descriptions.
HART Protocol Deep Dive: Field Device Integration with 4-20mA Loops
HART protocol architecture — how digital data rides on 4-20 mA analog loops, HART-IP gateways, WirelessHART mesh, and the role of HART 7 in modern Industry 4.0 stacks.