Cable selection for PXIe-8431/16 (RS-422) - NI Community
2022年1月25日 · Hello, I am having trouble finding a compatible twisted-shielded RS-422 cable for the PXIe-8431/16 with the VHDCI connection. I have located a few twisted-shielded cables from NI, but the twisted pair does not match the pinout of the PXIe-8431/16. The NI product search is not bringing up more than...
PXI-8431: Serial ports not functioning - NI Community
2009年7月22日 · I recently installed a PXI-8431 RS485/RS422 serial port expansion card in my lab's NI computer (chassis is a PXI-1042Q). After installation, I attempted to make a connection with an RS422 enabled device and failed. I have been able to achieve a connection to this device via the serial port on a PXI-...
Solved: pxi-8431 - NI Community
2012年6月18日 · A question regarding the PXI-8431/8 serial port card: Is it possible to directly control the TX (transmit) & read the state of the RX (receive) lines? I need to implement a serial communication scheme using separate data and clock similar to SPI using differential line drivers. Looking at the ...
已解决: 如何使用PXI-8431串口卡在VeriStand上和Matlab模型数据 …
2016年12月17日 · 已解决: 我有一台NI的PXI型的机架，装有 PXI-8431 485/422 串口通讯卡 目前需要使用该卡 实现 Matlab 的模型 和 下位机之间的数据交互， 不清楚如何使用 VeriStand 将该卡和模型上的 输入/输出 口连接起来。
LabVIEW PXI-8431/4 - NI Community
2021年1月21日 · Hi, I am trying to configure PXI-8431/4 to two wire mode for RS 485 and also DTR/No Echo. I am trying to find some online material for the same. Can anyone suggest some good online links that will help me with programming PXI-8431/4 in LabVIEW. Thank You.
Solved: PXI-8431/8 card Simulation in Labview - NI Community
2020年5月13日 · Hi All, I'm new to Labview Development Environment. I have a query which I would like to clarify with you guys. I need to simulate PXI-8431/8 RS 422 Serial card and use it as resource in Labview for coding purpose. I tried adding DAQ-MX simulation instance in MAX and tried searching for this card bu...
NI PXI-8431 RS-485 max baud rate? - NI Community
2010年1月6日 · I have a NI PXI-1045 chassis. I am using a NI-8431/4 RS-485 serial card that has up to 3 Mbit/s baud rate max. Is there any NI-PXI RS-485 card available that has 4 Mbit/s or higher baud rate? If NO what are my options? Can each channel (4 ch) in NI-8431/4 be programmed to handle different baud ...
RS485 half duplex(2 wire) - NI Community
2011年8月12日 · I am using NI PXI 8431 for performing RS485 communication with our meter. I am able to communicate to the device from NI 8421 using Full duplex communication. However I am not able to do the same with Half duplex communication. I am able to do Full duplex communication between my device and NI PXI 8431(2 port Rs485). Tx+ -> Rx+. Tx- -> Rx-Rx+ ...
Can I send RS232 data bytes through PCI-8431/8 NI cards, I use …
2009年5月21日 · HI I'm using PCI-8431/8 NI cards to read RS485 databytes received from another emitter host. But when i communicate with this host, i have to send RS232 data bytes to it (in other hand of this host it will send rs485 that i will read by 8431). I think to use my PCI-8431 to send RS232 data bytes requ...
Bronkhorst MFC with LabVIEW using NI PCIe 8431/8 card - NI …
2023年5月25日 · I have flipped the earlier connected RS 485 terminals (i.e., D0 Modbus (A/A') from MFC is taken RS 485 + to NI PCIe card and D1 Modbus (B/B') is taken as RS 485 - to the PCIe card. I have connected the ground terminal of the PCIe card with the Chassis ground of MFC using a 390 ohm resistor.