NI PXIe-8234卡件雙輸出模塊
1.產 品 介 紹
品牌：NI
型號：NI PXIe-8234
產品說明：卡件雙輸出模塊
優勢：供應進口原裝正品，專業停產配件。
快遞方式：國內順豐、德邦、京東快遞包郵，按照實際報價貨期發貨
2.產 品 詳 情 資 料：
NI PXIe-8234卡件雙輸出模塊本附錄描述了用于連接90系列協議（SNP）的90系列PLC的串行端口、轉換器和電纜。本信息僅供參考，適用于需要不同于工廠提供電纜長度的應用的用戶。RS-422接口90系列PLC系列產品與EIA RS-422規范兼容。RS-422驅動器和接收器用于在具有五個雙絞線的單個電纜上使用多個驅動器/接收器組合來實現多個系統組件之間的通信。NI PXIe-8234主設備和任何從設備之間的電纜長度不能超過4000英尺（2.9米）。可以配置由八個驅動器和接收器組成的多點系統。NI PXIe-8234每個附加壓降之間的最大共模電壓為RS-422標準的+7伏至-7伏。驅動器輸出必須能夠將最小2 V轉換為00歐姆。在高阻抗狀態下，驅動器輸出阻抗必須至少為20 K歐姆。接收器輸入電阻為2 K歐姆或更大。接收器靈敏度為200毫伏。NI PXIe-8234
This appendix describes the serial port, converter, and cables used to connect Series 90 PLCs for Series 90 Protocol (SNP). NI PXIe-8234This information is included for reference and for those users who have applications that require cable lengths different than the factory-supplied cables.RS-422 Interface The Series 90 PLC family of products are compatible with EIA RS-422 specifications. NI PXIe-8234RS-422 drivers and receivers are utilized to accomplish communications between several system components using multiple driver/receiver combinations on a single cable with five twisted pairs. The cable length between master and any slave cannot exceed 4,000 (,29 meters) feet.A multi-drop system of eight drivers and receivers can be configured. The maximum common mode voltage between each additional drop is the RS-422 standard of +7 Volts to -7 Volts. The driver output must be capable of 2 V minimum into 00 ohms. The driver output impedance must be at least 20 K ohms in the high impedance state. The receiver input resistance is 2 K ohms or greater. Receiver sensitivity is 200 millivolt.NI PXIe-8234
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