NI PXIe-8234卡件雙輸出模塊
1.產(chǎn) 品 介 紹
品牌：NI
型號：NI PXIe-8234
產(chǎn)品說明：卡件雙輸出模塊
優(yōu)勢：供應(yīng)進(jìn)口原裝正品，專業(yè)停產(chǎn)配件。
快遞方式：國內(nèi)順豐、德邦、京東快遞包郵，按照實際報價貨期發(fā)貨
2.產(chǎn) 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(xié)議（SNP）的90系列PLC的串行端口、轉(zhuǎn)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(yīng)用的用戶。RS-422接口90系列PLC系列產(chǎn)品與EIA RS-422規(guī)范兼容。RS-422驅(qū)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(qū)動器/接收器組合來實現(xiàn)多個系統(tǒng)組件之間的通信。NI PXIe-8234主設(shè)備和任何從設(shè)備之間的電纜長度不能超過4000英尺（2.9米）?？梢耘渲糜砂藗€驅(qū)動器和接收器組成的多點(diǎn)系統(tǒng)。NI PXIe-8234每個附加壓降之間的最大共模電壓為RS-422標(biāo)準(zhǔn)的+7伏至-7伏。驅(qū)動器輸出必須能夠?qū)⒆钚? V轉(zhuǎn)換為00歐姆。在高阻抗?fàn)顟B(tài)下，驅(qū)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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