blanpa
IIoT software developer
Shop-floor signals,
cloud-ready data.
I build the layer between machines and the systems that need their data — open-source Node-RED modules from edge gateway to cloud, fluent in OPC-UA, Siemens S7, Allen-Bradley CIP, NATS and Kafka.
NATS Explorer — the subject namespace as a live treeFeatured project
All projects
NATS Explorer
A management tool and message explorer for NATS — the subject namespace as a live tree, JetStream, KV and Object Store, alerts and monitoring, as a desktop app or one Go binary
Recent articles
All articlesSecuring OT Networks — The Purdue Model, OPC-UA Encryption & Segmentation
A practical OT security primer for IIoT developers — the Purdue model, network segmentation, securing OPC-UA and MQTT, and the realities of patching a 20-year-old PLC.
Modbus in Node-RED — The 47-Year-Old Protocol Everyone Still Uses
A practical guide to reading and writing Modbus TCP and RTU devices from Node-RED — register maps, data type decoding, byte ordering, and the gotchas that waste afternoons.
Talking to Allen-Bradley PLCs from Node-RED — EtherNet/IP & CIP Explained
A practical guide to reading and writing Allen-Bradley ControlLogix, CompactLogix, and legacy SLC/PLC-5 tags from Node-RED over EtherNet/IP and CIP.
Apache Kafka on the Shop Floor — Event Streaming for Manufacturing
When does Apache Kafka make sense in a factory, how it compares to NATS and MQTT, and how to wire it into Node-RED with a Schema Registry for real data contracts.
Lessons Learned: Publishing 7 npm Packages for Industrial IoT
What I learned building and maintaining open-source Node-RED packages — from first commit to thousands of downloads.
