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我該如何將 PXI-8431 設定在 RS-422 的操作模式？
硬體: Serial>>RS-485>>PXI-8431/2, Serial>>RS-485>>PXI-8431/4, Serial>>RS-485>>PCI-8431/8, Serial>>RS-485>>PCI-8433/2, Serial>>RS-485>>PCI-8433/4
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問題: 我有一個可以在 RS-485 和 RS-422 下操作的 PXI-8431，我該如何將它設定在 RS-422 的操作模式？
解答: RS-485 和 RS-422 在電性上是相同的，因此並不需要特別去設定在其中一個模式。唯一需要考慮的差別在於終端電阻以及傳輸模式(兩條線，四條線等等)。請參考以下的連結以得到更多資訊。
相關連結: KnowledgeBase 2FT8RJQX: Using Both the RS-485 and RS-422 Protocols Simultaneously
KnowledgeBase 0XE8M4L7: Do NI Serial boards come with Termination and Biasing Resistors Built-in?
KnowledgeBase 17M6L0TI: What Are the Different Transceiver Modes on the NI RS-485 Serial Cards?
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報告日期: 10/30/2008
最後更新: 12/25/2008
文件偏號: 4QTG80CF