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PXIe-8431/8, 8 Ports, RS-485/RS-422 Protocols, PXI Serial Interface Module
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March 2025
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January 2025
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May 2025
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January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments PXIe-8431/8 PXI Serial Interface Module
The National Instruments PXIe-8431/8 (Part Number: 781473-01) is a Serial Interface Module suitable for RS485/RS422 standards. This module includes 8 Ports that enables users to get full duplex transmission. In this model, one of the gadgets must fill in as a Master and others as Slaves, so the communications are made just between the Master and the Slaves. No information is exchanged between the slaves. In these cases, the RS-422 controller for the most part fills in as the master, and the RS-485 gadgets as slaves, for motivations of bringing down the framework. The RS-422 basic, at first considers the utilization of 4-wire protected twisted pair link, yet permits associations just starting with one gadget then onto the next (up to 5 controllers and up to 10 recipients for every controller).
Modbus is a communication convention included in this model considering customer server design. It is generally utilized as a part of IT to sort out association between electrical gadgets. The convention can be utilized to exchange information through serial association lines RS-485, RS-422, and TCP/IP arrange (Modbus TCP). The fundamental characteristic for the convention is that there is just a single master in the system. Modbus permits the user to outline a modern system from one master and up to 247 slaves.
The NI PXIe-8431/8 comes with a transmission mode that characterizes the structure of the distinctive data obstructs inside the message, which is utilized for information transmission. There are 2 transmission modes in the Modbus framework and the two modes ensure indistinguishable similarity amid association with slaves.
| Model | PXIe-8431/8 |
|---|---|
| Part Number | 781473-01 |
| Manufacturer | National Instruments |
| Type | PXI Serial Interface Module |
| Serial Channels | 8 |
| Supported Serial Protocols | RS-422 and RS-485 |
| Isolated | No |
| Dimensions | 3.94 x 6.37 in. |
| Weight | 143 g. |
| Warranty | 2-3 Year Warranty |
| PXIe-8431/8 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PXIe-8431-8:
National Instruments PXIe-8431/8 Frequently Asked Questions
Question: What is the baud rate accuracy for the PXIe-8431/8?
Answer: The baud rate accuracy for the PXIe-8431/8 is within 0.015% for the regular baud rate, within 0.5% for the nonstandard baud rate under 1 Mbps, and within 1.3% for the nonstandard baud rate between 1 Mbps and 3 Mbps.
Question: What is the power requirement for the NI PXIe-8431/8 at +3.3 VDC?
Answer: The power requirement for the NI PXIe-8431/8 at +3.3 VDC is 0.7 A typical and 1.5 A maximum.
Question: Does the PXIe-8431/8 have FIFO settings that can be adjusted?
Answer: Yes, the PXIe-8431/8 has FIFO settings that can be adjusted.
Question: What is the maximum number of drivers for the RS-422 interface on the NI PXIe-8431/8?
Answer: The maximum number of drivers is 1 for the RS-422 interface on the NI PXIe-8431/8.
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