# 通訊

- [OCT 輸出](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/oct-output-setup.md)
- [類比電流輸出(0-20mA, 4-20mA)](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/current-output.md)
- [RS485 與 Modbus RTU 設定](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/rs485-setup.md)
- [Modbus RTU Protocol](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol.md)
- [唯讀型記憶體](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/wei-du-xing-ji-yi-ti.md)
- [唯讀型記憶體-列表](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/wei-du-xing-ji-yi-ti/read-only-memory-read-instruction-04-and-memory-lists.md)
- [唯讀型記憶體-讀取指令(04)](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/wei-du-xing-ji-yi-ti/read-only-memory-read-instruction-04-and-memory-lists-1.md)
- [讀寫型記憶體](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/du-xie-xing-ji-yi-ti.md)
- [讀寫型記憶體列表](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/du-xie-xing-ji-yi-ti/du-xie-xing-ji-yi-ti-lie-biao.md)
- [讀寫型記憶體-讀取指令(03)](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/du-xie-xing-ji-yi-ti/du-xie-xing-ji-yi-ti-du-qu-zhi-ling-03.md)
- [讀寫型記憶體-單Register寫入指令(06)](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/du-xie-xing-ji-yi-ti/read-write-memory-single-register-write-instruction-06.md)
- [讀寫型記憶體雙Register寫入指令(30)](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/du-xie-xing-ji-yi-ti/du-xie-xing-ji-yi-ti-shuang-register-xie-ru-zhi-ling-30.md)
- [讀寫型記憶體四個Register寫入指令(31)](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/du-xie-xing-ji-yi-ti/du-xie-xing-ji-yi-ti-si-ge-register-xie-ru-zhi-ling-31.md)
- [Single Bit 資料讀寫指令(01/05)(人機介面常用)](https://docs.lorric.com/qr/fu-es-ultrasonic-flowmeter-manual-chinese-v1/communication/modbus-rtu-protocol/single-bit-zi-liao-du-xie-zhi-ling-0105-ren-ji-jie-mian-chang-yong.md): 指令目的及使用時機： 部分的人機介面僅支援 05寫入指令 發送 重置累計量訊號。其中更有部分人機介面同時要求支援01讀取指令讓人機介面確認感測器能正常工作。


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