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- [Read-Only Memory (ROM)](https://docs.lorric.com/qr/fp-as310-paddle-wheel-flowmeter-manual-en-v1/communication/modbus-rtu-protocol/read-only-memory-rom.md)
- [Read-Only Memory (ROM) – List](https://docs.lorric.com/qr/fp-as310-paddle-wheel-flowmeter-manual-en-v1/communication/modbus-rtu-protocol/read-only-memory-rom/read-only-memory-rom-list.md)
- [Read-Only Memory – Read Command (04)](https://docs.lorric.com/qr/fp-as310-paddle-wheel-flowmeter-manual-en-v1/communication/modbus-rtu-protocol/read-only-memory-rom/read-only-memory-read-instruction-04-and-memory-lists.md)
- [Modbus RTU Protocol](https://docs.lorric.com/qr/fp-as310-paddle-wheel-flowmeter-manual-en-v1/communication/modbus-rtu-protocol.md)
- [Single Bit Data Read/Write Commands (01/05) (Commonly Used in HMIs)](https://docs.lorric.com/qr/fp-as310-paddle-wheel-flowmeter-manual-en-v1/communication/modbus-rtu-protocol/single-bit-data-read-write-commands-01-05-commonly-used-in-hmis.md)

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