COMM.02 / INDUSTRIAL.PROTOCOLS
How devices talk on the plant floor. From Modbus to OPC UA.
▸ Recommended path
New here? Finish the Networking Fundamentals lessons first (0/10 done), then start with Modbus RTU — it's the simplest and most widely used.
ACTIVE
SERIAL · RS-485
Serial communication's universal protocol.
PRACTICE MODULE
6 BELTS · DRILLS
Practice until it's automatic. Six drills: data map, addressing, decoding, building, exceptions, trace debugging.
ACTIVE
TCP/IP
Modbus over Ethernet.
PRACTICE MODULE
5 BELTS · TCP DRILLS
MBAP header decoding, transaction ID matching, request building, exceptions, and full TCP trace debugging.
ACTIVE
INDUSTRIAL ETHERNET
Siemens-led industrial Ethernet.
ACTIVE
INDUSTRIAL ETHERNET
Rockwell's industrial Ethernet.
ACTIVE
MOTION
Fast deterministic motion control.
ACTIVE
IT/OT
Modern, secure, vendor-neutral.
ACTIVE
FIELDBUS · RS-485 / MBP
Europe's factory-floor workhorse since 1989.
ACTIVE
SENSOR-LEVEL · YELLOW CABLE
One master, 31 slaves, on a flat yellow cable.
ACTIVE
4–20 mA + DIGITAL
Smart sensors over 4-20 mA loops.
ACTIVE
EMBEDDED
Embedded and mobile equipment.
ACTIVE
SENSOR-LEVEL
Sensor-level digital communication.
ACTIVE
IIoT · CLOUD
The protocol carrying OT data to the cloud.
ACTIVE
MOTION · ETHERNET RING
High-precision motion bus over real-time Ethernet.
PRACTICE MODULE
62 TASKS · DRAG-TO-WIRE
Wire the connectors behind every protocol — RS-232/485, PROFIBUS, PROFINET, DeviceNet, M12 sensors, DIN solenoids — against source-verified pinouts.
PRACTICE MODULE
22 TASKS · TAP-TO-WIRE
Land motors, transformers, CTs and servo drives on their terminals — star/delta, dual-voltage 9/12-lead, DC, Steinmetz — against IEC/NEMA-verified markings.
PRACTICE MODULE
10 DRIVES · 9 MISSIONS
Commission a variable-frequency drive: keypad parameters, SINK/SOURCE control wiring, run a motor, work fault codes, and PLC integration — across 10 vendor keypads.
PRACTICE MODULE
5 BRANDS · TUNE & COMMISSION
Commission and tune a servo drive across Delta, Yaskawa, Mitsubishi, Panasonic & Omron — wire the bench, close the loop, tune out overshoot on a live scope, set electronic gearing, and work fault codes.
▸ CAPSTONE PROJECT
Seven devices in front of you: HMI, PLC, robot, servo drive, smart sensor, VFD, cloud gateway. Each one only speaks one protocol. Wire each device to the PLC with the right cable, and the factory comes alive: robot arm swings, motor spins, sensor LEDs blink, HMI lights up, cloud streams.