Modbus is bad, actually.

Born 1979. Never finished. Still squatting on port 502.

Lil Modbus — The Mixtape

1. Endianness Roulette Three float layouts. One spec.
2. 16-Bit Everything Timestamp? Two registers. String? Pack a lunch.
3. No Auth, No Crypto One CRC. Port 502 is root.
4. 247 Slaves Silence is the error.
5. Function-Code Archaeology FC 1–6, 15, 16, and a 0x2B goblin.
6. TCP Ain’t TCP Now debug the gateway’s gateway.

Modbus ain’t a protocol. It’s a 1979 group project that forgot the byte order — and dropped the tape anyway.

— dumbscadaguy / executive producer