CRC-16/MODBUS

CRC16 detects accidental errors in transmission; not cryptographic integrity.

CRC-16/MODBUS — free, no upload (FAQs)

FAQs

Polynomial?
0xA001 (reflected).

Related tools

CRC-16/MODBUS FAQs

FAQs

Register order?
MODBUS often transmits low byte first; confirm with device protocol docs.