Industrial protocols, answered in the right shape.
Kutup Baud knows Modbus , OPC UA , OPC DA and MQTT . It plans every answer first (a table, numbered steps or a byte-by-byte frame), then writes it, entirely in your browser. English only.
Qwen3-0.6B baseNew architecture 2 structure blocks · decision head · shape grammarsFull fine-tune every weight retrained100% in your browser WebAssembly · WebGPU
Modbus
OPC UA
OPC DA
MQTT
RTU · ASCII · TCP · TCP Security
Decode this RTU frame 11 03 00 6B 00 03 76 87 What does exception code 02 mean, and how do I fix it? How many holding registers can one read request return?
Parts 1–14 · PubSub · security · information model
Which message security modes does OPC UA define? My client gets BadCertificateUntrusted. What should I check? How do subscriptions and monitored items work?
1.0a · 2.05a · 3.0 · XML-DA
What does quality 0x18 mean? Reads work, but OnDataChange never arrives from a remote server. Why? Compare OPC DA and OPC UA in a table
3.1 · 3.1.1 · 5.0 · MQTT-SN · Sparkplug
What are the benefits of MQTT 5.0 over 3.1.1? Does plant/+/temperature match plant/line2/temperature? What are the MQTT QoS levels?