"It breaks my legacy HMI (Human-Machine Interface) which only speaks Modbus RTU." Fact: Modbus RTU is still fully supported. However, you must disable TLS on the serial port (a simple configuration toggle).
| Metric | Original (v2.3) | SDDE625ULE Updated (v3.0) | Improvement | |--------|----------------|----------------------------|--------------| | Average scan cycle | 12.4 ms | 3.1 ms | | | Peak memory usage | 78% of 256 KB | 34% of 1 MB | 56% lower relative load | | Network jitter (σ) | 2.1 ms | 0.4 ms | 81% reduction | | Power consumption | 4.2 W | 3.7 W | 12% more efficient | | Time to cloud telemetry (MQTT) | 880 ms | 110 ms | 87% faster | sdde625ule updated
A: Approximately 12 minutes per unit (including backup, flash, verification, and config reapplication). "It breaks my legacy HMI (Human-Machine Interface) which