Sensor Communication Protocols: Modbus, HART, and 4-20mA Comparison Guide
Key Takeaways 4-20mA analog communication remains the dominant protocol, installed in 75% of industrial monitoring applications Modbus RTU/TCP enables digital communication with access to multiple measurement parameters from single devices HART protocol combines 4-20mA analog transmission with digital diagnostic data on the same wires Protocol selection affects 40-60% of total monitoring system installation cost ChiMay…

