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Cannot programmatically change the baudrate of COM port of NI PXI8431/4

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Please no need to apologise. The slave device I am using is a PLC. I dont know how to change the baud rate of the device. I have a document that just says supported baud rates are 1200,2400,4800,9600,38400,57600 and 115200. So i thought I dont need to change it. It automatically works on all these baud rates is what I thought. If I need to change the baud rate then I have to find out how. 

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Solution
Accepted by govindsankar

Believe me, there is no such thing as an automatic baudrate on a serial port. Any serial interface can work with only one speed at a time.

So, go digging into the documentation to search how to change the speed on the PLC.

Paolo
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LV 7.1, 2011, 2017, 2019
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Thank you, I will check that and get back to you. 

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